Mercurial > hg > graal-jvmci-8
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 3451:38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
Reviewed-by: jrose, twisti, bdelsart
author | never |
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date | Thu, 16 Jun 2011 13:46:55 -0700 |
parents | a9b8b43b115f |
children | 341a57af9b0a |
rev | line source |
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710 | 1 /* |
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2 * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved. |
710 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
710 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "memory/allocation.inline.hpp" | |
28 #include "prims/methodHandles.hpp" | |
710 | 29 |
30 #define __ _masm-> | |
31 | |
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32 #ifdef PRODUCT |
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33 #define BLOCK_COMMENT(str) /* nothing */ |
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34 #else |
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35 #define BLOCK_COMMENT(str) __ block_comment(str) |
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36 #endif |
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37 |
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38 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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39 |
710 | 40 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
41 address interpreted_entry) { | |
1503 | 42 // Just before the actual machine code entry point, allocate space |
43 // for a MethodHandleEntry::Data record, so that we can manage everything | |
44 // from one base pointer. | |
710 | 45 __ align(wordSize); |
46 address target = __ pc() + sizeof(Data); | |
47 while (__ pc() < target) { | |
48 __ nop(); | |
49 __ align(wordSize); | |
50 } | |
51 | |
52 MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); | |
53 me->set_end_address(__ pc()); // set a temporary end_address | |
54 me->set_from_interpreted_entry(interpreted_entry); | |
55 me->set_type_checking_entry(NULL); | |
56 | |
57 return (address) me; | |
58 } | |
59 | |
60 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, | |
61 address start_addr) { | |
62 MethodHandleEntry* me = (MethodHandleEntry*) start_addr; | |
63 assert(me->end_address() == start_addr, "valid ME"); | |
64 | |
65 // Fill in the real end_address: | |
66 __ align(wordSize); | |
67 me->set_end_address(__ pc()); | |
68 | |
69 return me; | |
70 } | |
71 | |
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72 // stack walking support |
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73 |
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74 frame MethodHandles::ricochet_frame_sender(const frame& fr, RegisterMap *map) { |
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75 //RicochetFrame* f = RicochetFrame::from_frame(fr); |
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76 // Cf. is_interpreted_frame path of frame::sender |
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77 intptr_t* younger_sp = fr.sp(); |
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78 intptr_t* sp = fr.sender_sp(); |
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79 map->make_integer_regs_unsaved(); |
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80 map->shift_window(sp, younger_sp); |
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81 bool this_frame_adjusted_stack = true; // I5_savedSP is live in this RF |
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82 return frame(sp, younger_sp, this_frame_adjusted_stack); |
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83 } |
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84 |
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85 void MethodHandles::ricochet_frame_oops_do(const frame& fr, OopClosure* blk, const RegisterMap* reg_map) { |
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86 ResourceMark rm; |
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87 RicochetFrame* f = RicochetFrame::from_frame(fr); |
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88 |
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89 // pick up the argument type descriptor: |
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90 Thread* thread = Thread::current(); |
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91 Handle cookie(thread, f->compute_saved_args_layout(true, true)); |
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92 |
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93 // process fixed part |
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94 blk->do_oop((oop*)f->saved_target_addr()); |
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95 blk->do_oop((oop*)f->saved_args_layout_addr()); |
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96 |
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97 // process variable arguments: |
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98 if (cookie.is_null()) return; // no arguments to describe |
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99 |
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100 // the cookie is actually the invokeExact method for my target |
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101 // his argument signature is what I'm interested in |
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102 assert(cookie->is_method(), ""); |
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103 methodHandle invoker(thread, methodOop(cookie())); |
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104 assert(invoker->name() == vmSymbols::invokeExact_name(), "must be this kind of method"); |
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105 assert(!invoker->is_static(), "must have MH argument"); |
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106 int slot_count = invoker->size_of_parameters(); |
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107 assert(slot_count >= 1, "must include 'this'"); |
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108 intptr_t* base = f->saved_args_base(); |
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109 intptr_t* retval = NULL; |
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110 if (f->has_return_value_slot()) |
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111 retval = f->return_value_slot_addr(); |
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112 int slot_num = slot_count - 1; |
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113 intptr_t* loc = &base[slot_num]; |
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114 //blk->do_oop((oop*) loc); // original target, which is irrelevant |
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115 int arg_num = 0; |
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116 for (SignatureStream ss(invoker->signature()); !ss.is_done(); ss.next()) { |
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117 if (ss.at_return_type()) continue; |
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118 BasicType ptype = ss.type(); |
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119 if (ptype == T_ARRAY) ptype = T_OBJECT; // fold all refs to T_OBJECT |
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120 assert(ptype >= T_BOOLEAN && ptype <= T_OBJECT, "not array or void"); |
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121 slot_num -= type2size[ptype]; |
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122 loc = &base[slot_num]; |
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123 bool is_oop = (ptype == T_OBJECT && loc != retval); |
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124 if (is_oop) blk->do_oop((oop*)loc); |
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125 arg_num += 1; |
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126 } |
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127 assert(slot_num == 0, "must have processed all the arguments"); |
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128 } |
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129 |
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130 // Ricochet Frames |
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131 const Register MethodHandles::RicochetFrame::L1_continuation = L1; |
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132 const Register MethodHandles::RicochetFrame::L2_saved_target = L2; |
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133 const Register MethodHandles::RicochetFrame::L3_saved_args_layout = L3; |
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134 const Register MethodHandles::RicochetFrame::L4_saved_args_base = L4; // cf. Gargs = G4 |
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135 const Register MethodHandles::RicochetFrame::L5_conversion = L5; |
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136 #ifdef ASSERT |
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137 const Register MethodHandles::RicochetFrame::L0_magic_number_1 = L0; |
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138 #endif //ASSERT |
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139 |
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140 oop MethodHandles::RicochetFrame::compute_saved_args_layout(bool read_cache, bool write_cache) { |
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141 if (read_cache) { |
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142 oop cookie = saved_args_layout(); |
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143 if (cookie != NULL) return cookie; |
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144 } |
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145 oop target = saved_target(); |
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146 oop mtype = java_lang_invoke_MethodHandle::type(target); |
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147 oop mtform = java_lang_invoke_MethodType::form(mtype); |
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148 oop cookie = java_lang_invoke_MethodTypeForm::vmlayout(mtform); |
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149 if (write_cache) { |
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150 (*saved_args_layout_addr()) = cookie; |
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151 } |
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152 return cookie; |
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153 } |
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154 |
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155 void MethodHandles::RicochetFrame::generate_ricochet_blob(MacroAssembler* _masm, |
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156 // output params: |
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157 int* bounce_offset, |
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158 int* exception_offset, |
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159 int* frame_size_in_words) { |
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160 (*frame_size_in_words) = RicochetFrame::frame_size_in_bytes() / wordSize; |
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161 |
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162 address start = __ pc(); |
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163 |
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164 #ifdef ASSERT |
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165 __ illtrap(0); __ illtrap(0); __ illtrap(0); |
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166 // here's a hint of something special: |
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167 __ set(MAGIC_NUMBER_1, G0); |
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168 __ set(MAGIC_NUMBER_2, G0); |
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169 #endif //ASSERT |
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170 __ illtrap(0); // not reached |
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171 |
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172 // Return values are in registers. |
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173 // L1_continuation contains a cleanup continuation we must return |
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174 // to. |
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175 |
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176 (*bounce_offset) = __ pc() - start; |
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177 BLOCK_COMMENT("ricochet_blob.bounce"); |
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178 |
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179 if (VerifyMethodHandles) RicochetFrame::verify_clean(_masm); |
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180 trace_method_handle(_masm, "ricochet_blob.bounce"); |
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181 |
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182 __ JMP(L1_continuation, 0); |
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183 __ delayed()->nop(); |
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184 __ illtrap(0); |
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185 |
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186 DEBUG_ONLY(__ set(MAGIC_NUMBER_2, G0)); |
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187 |
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188 (*exception_offset) = __ pc() - start; |
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189 BLOCK_COMMENT("ricochet_blob.exception"); |
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190 |
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191 // compare this to Interpreter::rethrow_exception_entry, which is parallel code |
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192 // for example, see TemplateInterpreterGenerator::generate_throw_exception |
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193 // Live registers in: |
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194 // Oexception (O0): exception |
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195 // Oissuing_pc (O1): return address/pc that threw exception (ignored, always equal to bounce addr) |
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196 __ verify_oop(Oexception); |
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197 |
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198 // Take down the frame. |
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199 |
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200 // Cf. InterpreterMacroAssembler::remove_activation. |
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201 leave_ricochet_frame(_masm, /*recv_reg=*/ noreg, I5_savedSP, I7); |
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202 |
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203 // We are done with this activation frame; find out where to go next. |
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204 // The continuation point will be an exception handler, which expects |
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205 // the following registers set up: |
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206 // |
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207 // Oexception: exception |
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208 // Oissuing_pc: the local call that threw exception |
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209 // Other On: garbage |
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210 // In/Ln: the contents of the caller's register window |
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211 // |
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212 // We do the required restore at the last possible moment, because we |
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213 // need to preserve some state across a runtime call. |
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214 // (Remember that the caller activation is unknown--it might not be |
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215 // interpreted, so things like Lscratch are useless in the caller.) |
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216 __ mov(Oexception, Oexception ->after_save()); // get exception in I0 so it will be on O0 after restore |
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217 __ add(I7, frame::pc_return_offset, Oissuing_pc->after_save()); // likewise set I1 to a value local to the caller |
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218 __ call_VM_leaf(L7_thread_cache, |
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219 CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), |
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220 G2_thread, Oissuing_pc->after_save()); |
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221 |
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222 // The caller's SP was adjusted upon method entry to accomodate |
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223 // the callee's non-argument locals. Undo that adjustment. |
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224 __ JMP(O0, 0); // return exception handler in caller |
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225 __ delayed()->restore(I5_savedSP, G0, SP); |
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226 |
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227 // (same old exception object is already in Oexception; see above) |
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228 // Note that an "issuing PC" is actually the next PC after the call |
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229 } |
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230 |
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231 void MethodHandles::RicochetFrame::enter_ricochet_frame(MacroAssembler* _masm, |
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232 Register recv_reg, |
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233 Register argv_reg, |
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234 address return_handler) { |
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235 // does not include the __ save() |
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236 assert(argv_reg == Gargs, ""); |
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237 Address G3_mh_vmtarget( recv_reg, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes()); |
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238 Address G3_amh_conversion(recv_reg, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes()); |
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239 |
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240 // Create the RicochetFrame. |
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241 // Unlike on x86 we can store all required information in local |
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242 // registers. |
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243 BLOCK_COMMENT("push RicochetFrame {"); |
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244 __ set(ExternalAddress(return_handler), L1_continuation); |
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245 __ load_heap_oop(G3_mh_vmtarget, L2_saved_target); |
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246 __ mov(G0, L3_saved_args_layout); |
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247 __ mov(Gargs, L4_saved_args_base); |
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248 __ lduw(G3_amh_conversion, L5_conversion); // 32-bit field |
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249 // I5, I6, I7 are already set up |
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250 DEBUG_ONLY(__ set((int32_t) MAGIC_NUMBER_1, L0_magic_number_1)); |
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251 BLOCK_COMMENT("} RicochetFrame"); |
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252 } |
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253 |
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254 void MethodHandles::RicochetFrame::leave_ricochet_frame(MacroAssembler* _masm, |
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255 Register recv_reg, |
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256 Register new_sp_reg, |
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257 Register sender_pc_reg) { |
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258 assert(new_sp_reg == I5_savedSP, "exact_sender_sp already in place"); |
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259 assert(sender_pc_reg == I7, "in a fixed place"); |
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260 // does not include the __ ret() & __ restore() |
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261 assert_different_registers(recv_reg, new_sp_reg, sender_pc_reg); |
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262 // Take down the frame. |
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263 // Cf. InterpreterMacroAssembler::remove_activation. |
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264 BLOCK_COMMENT("end_ricochet_frame {"); |
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265 if (recv_reg->is_valid()) |
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266 __ mov(L2_saved_target, recv_reg); |
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267 BLOCK_COMMENT("} end_ricochet_frame"); |
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268 } |
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269 |
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270 // Emit code to verify that FP is pointing at a valid ricochet frame. |
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271 #ifdef ASSERT |
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272 enum { |
3449
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273 ARG_LIMIT = 255, SLOP = 45, |
3442
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274 // use this parameter for checking for garbage stack movements: |
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275 UNREASONABLE_STACK_MOVE = (ARG_LIMIT + SLOP) |
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276 // the slop defends against false alarms due to fencepost errors |
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277 }; |
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278 |
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279 void MethodHandles::RicochetFrame::verify_clean(MacroAssembler* _masm) { |
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280 // The stack should look like this: |
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281 // ... keep1 | dest=42 | keep2 | magic | handler | magic | recursive args | [RF] |
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282 // Check various invariants. |
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283 |
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284 Register O7_temp = O7, O5_temp = O5; |
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285 |
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286 Label L_ok_1, L_ok_2, L_ok_3, L_ok_4; |
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287 BLOCK_COMMENT("verify_clean {"); |
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288 // Magic numbers must check out: |
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289 __ set((int32_t) MAGIC_NUMBER_1, O7_temp); |
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290 __ cmp(O7_temp, L0_magic_number_1); |
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291 __ br(Assembler::equal, false, Assembler::pt, L_ok_1); |
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292 __ delayed()->nop(); |
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293 __ stop("damaged ricochet frame: MAGIC_NUMBER_1 not found"); |
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294 |
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295 __ BIND(L_ok_1); |
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296 |
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297 // Arguments pointer must look reasonable: |
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298 #ifdef _LP64 |
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299 Register FP_temp = O5_temp; |
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300 __ add(FP, STACK_BIAS, FP_temp); |
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|
301 #else |
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302 Register FP_temp = FP; |
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303 #endif |
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304 __ cmp(L4_saved_args_base, FP_temp); |
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305 __ br(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok_2); |
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306 __ delayed()->nop(); |
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307 __ stop("damaged ricochet frame: L4 < FP"); |
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308 |
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309 __ BIND(L_ok_2); |
3451
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310 // Disable until we decide on it's fate |
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311 // __ sub(L4_saved_args_base, UNREASONABLE_STACK_MOVE * Interpreter::stackElementSize, O7_temp); |
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312 // __ cmp(O7_temp, FP_temp); |
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313 // __ br(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok_3); |
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314 // __ delayed()->nop(); |
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315 // __ stop("damaged ricochet frame: (L4 - UNREASONABLE_STACK_MOVE) > FP"); |
3442
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316 |
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317 __ BIND(L_ok_3); |
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318 extract_conversion_dest_type(_masm, L5_conversion, O7_temp); |
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319 __ cmp(O7_temp, T_VOID); |
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320 __ br(Assembler::equal, false, Assembler::pt, L_ok_4); |
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321 __ delayed()->nop(); |
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322 extract_conversion_vminfo(_masm, L5_conversion, O5_temp); |
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323 __ ld_ptr(L4_saved_args_base, __ argument_offset(O5_temp, O5_temp), O7_temp); |
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324 assert(__ is_simm13(RETURN_VALUE_PLACEHOLDER), "must be simm13"); |
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325 __ cmp(O7_temp, (int32_t) RETURN_VALUE_PLACEHOLDER); |
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326 __ brx(Assembler::equal, false, Assembler::pt, L_ok_4); |
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327 __ delayed()->nop(); |
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328 __ stop("damaged ricochet frame: RETURN_VALUE_PLACEHOLDER not found"); |
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329 __ BIND(L_ok_4); |
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330 BLOCK_COMMENT("} verify_clean"); |
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331 } |
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332 #endif //ASSERT |
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333 |
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334 void MethodHandles::load_klass_from_Class(MacroAssembler* _masm, Register klass_reg, Register temp_reg, Register temp2_reg) { |
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335 if (VerifyMethodHandles) |
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336 verify_klass(_masm, klass_reg, SystemDictionaryHandles::Class_klass(), temp_reg, temp2_reg, |
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337 "AMH argument is a Class"); |
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338 __ load_heap_oop(Address(klass_reg, java_lang_Class::klass_offset_in_bytes()), klass_reg); |
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339 } |
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340 |
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341 void MethodHandles::load_conversion_vminfo(MacroAssembler* _masm, Address conversion_field_addr, Register reg) { |
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342 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
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343 assert(CONV_VMINFO_MASK == right_n_bits(BitsPerByte), "else change type of following load"); |
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344 __ ldub(conversion_field_addr.plus_disp(BytesPerInt - 1), reg); |
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345 } |
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346 |
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347 void MethodHandles::extract_conversion_vminfo(MacroAssembler* _masm, Register conversion_field_reg, Register reg) { |
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348 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
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349 __ and3(conversion_field_reg, CONV_VMINFO_MASK, reg); |
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350 } |
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351 |
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352 void MethodHandles::extract_conversion_dest_type(MacroAssembler* _masm, Register conversion_field_reg, Register reg) { |
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353 __ srl(conversion_field_reg, CONV_DEST_TYPE_SHIFT, reg); |
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354 __ and3(reg, 0x0F, reg); |
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|
355 } |
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|
356 |
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357 void MethodHandles::load_stack_move(MacroAssembler* _masm, |
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358 Address G3_amh_conversion, |
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|
359 Register stack_move_reg) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
360 BLOCK_COMMENT("load_stack_move {"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
361 __ ldsw(G3_amh_conversion, stack_move_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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362 __ sra(stack_move_reg, CONV_STACK_MOVE_SHIFT, stack_move_reg); |
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|
363 if (VerifyMethodHandles) { |
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diff
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|
364 Label L_ok, L_bad; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
365 int32_t stack_move_limit = 0x0800; // extra-large |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
366 __ cmp(stack_move_reg, stack_move_limit); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
367 __ br(Assembler::greaterEqual, false, Assembler::pn, L_bad); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
368 __ delayed()->nop(); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
369 __ cmp(stack_move_reg, -stack_move_limit); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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370 __ br(Assembler::greater, false, Assembler::pt, L_ok); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
371 __ delayed()->nop(); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
372 __ BIND(L_bad); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
373 __ stop("load_stack_move of garbage value"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
374 __ BIND(L_ok); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
375 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
376 BLOCK_COMMENT("} load_stack_move"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
377 } |
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|
378 |
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changeset
|
379 #ifdef ASSERT |
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|
380 void MethodHandles::RicochetFrame::verify() const { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
381 assert(magic_number_1() == MAGIC_NUMBER_1, ""); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
382 if (!Universe::heap()->is_gc_active()) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
383 if (saved_args_layout() != NULL) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
384 assert(saved_args_layout()->is_method(), "must be valid oop"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
385 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
386 if (saved_target() != NULL) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
387 assert(java_lang_invoke_MethodHandle::is_instance(saved_target()), "checking frame value"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
388 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
389 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
390 int conv_op = adapter_conversion_op(conversion()); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
391 assert(conv_op == java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS || |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
392 conv_op == java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS || |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
393 conv_op == java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
394 "must be a sane conversion"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
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|
395 if (has_return_value_slot()) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
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|
396 assert(*return_value_slot_addr() == RETURN_VALUE_PLACEHOLDER, ""); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
397 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
398 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
399 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
400 void MethodHandles::verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
401 // Verify that argslot lies within (Gargs, FP]. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
402 Label L_ok, L_bad; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
403 BLOCK_COMMENT("verify_argslot {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
404 __ add(FP, STACK_BIAS, temp_reg); // STACK_BIAS is zero on !_LP64 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
405 __ cmp(argslot_reg, temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
406 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
407 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
408 __ cmp(Gargs, argslot_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
409 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
410 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
411 __ BIND(L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
412 __ stop(error_message); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
413 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
414 BLOCK_COMMENT("} verify_argslot"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
415 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
416 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
417 void MethodHandles::verify_argslots(MacroAssembler* _masm, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
418 RegisterOrConstant arg_slots, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
419 Register arg_slot_base_reg, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
420 Register temp_reg, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
421 Register temp2_reg, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
422 bool negate_argslots, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
423 const char* error_message) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
424 // Verify that [argslot..argslot+size) lies within (Gargs, FP). |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
425 Label L_ok, L_bad; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
426 BLOCK_COMMENT("verify_argslots {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
427 if (negate_argslots) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
428 if (arg_slots.is_constant()) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
429 arg_slots = -1 * arg_slots.as_constant(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
430 } else { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
431 __ neg(arg_slots.as_register(), temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
432 arg_slots = temp_reg; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
433 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
434 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
435 __ add(arg_slot_base_reg, __ argument_offset(arg_slots, temp_reg), temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
436 __ add(FP, STACK_BIAS, temp2_reg); // STACK_BIAS is zero on !_LP64 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
437 __ cmp(temp_reg, temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
438 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
439 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
440 // Gargs points to the first word so adjust by BytesPerWord |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
441 __ add(arg_slot_base_reg, BytesPerWord, temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
442 __ cmp(Gargs, temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
443 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
444 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
445 __ BIND(L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
446 __ stop(error_message); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
447 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
448 BLOCK_COMMENT("} verify_argslots"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
449 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
450 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
451 // Make sure that arg_slots has the same sign as the given direction. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
452 // If (and only if) arg_slots is a assembly-time constant, also allow it to be zero. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
453 void MethodHandles::verify_stack_move(MacroAssembler* _masm, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
454 RegisterOrConstant arg_slots, int direction) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
455 enum { UNREASONABLE_STACK_MOVE = 256 * 4 }; // limit of 255 arguments |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
456 bool allow_zero = arg_slots.is_constant(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
457 if (direction == 0) { direction = +1; allow_zero = true; } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
458 assert(stack_move_unit() == -1, "else add extra checks here"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
459 if (arg_slots.is_register()) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
460 Label L_ok, L_bad; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
461 BLOCK_COMMENT("verify_stack_move {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
462 // __ btst(-stack_move_unit() - 1, arg_slots.as_register()); // no need |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
463 // __ br(Assembler::notZero, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
464 // __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
465 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
466 if (direction > 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
467 __ br(allow_zero ? Assembler::less : Assembler::lessEqual, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
468 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
469 __ cmp(arg_slots.as_register(), (int32_t) UNREASONABLE_STACK_MOVE); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
470 __ br(Assembler::less, false, Assembler::pn, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
471 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
472 } else { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
473 __ br(allow_zero ? Assembler::greater : Assembler::greaterEqual, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
474 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
475 __ cmp(arg_slots.as_register(), (int32_t) -UNREASONABLE_STACK_MOVE); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
476 __ br(Assembler::greater, false, Assembler::pn, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
477 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
478 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
479 __ BIND(L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
480 if (direction > 0) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
481 __ stop("assert arg_slots > 0"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
482 else |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
483 __ stop("assert arg_slots < 0"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
484 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
485 BLOCK_COMMENT("} verify_stack_move"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
486 } else { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
487 intptr_t size = arg_slots.as_constant(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
488 if (direction < 0) size = -size; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
489 assert(size >= 0, "correct direction of constant move"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
490 assert(size < UNREASONABLE_STACK_MOVE, "reasonable size of constant move"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
491 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
492 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
493 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
494 void MethodHandles::verify_klass(MacroAssembler* _masm, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
495 Register obj_reg, KlassHandle klass, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
496 Register temp_reg, Register temp2_reg, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
497 const char* error_message) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
498 oop* klass_addr = klass.raw_value(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
499 assert(klass_addr >= SystemDictionaryHandles::Object_klass().raw_value() && |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
500 klass_addr <= SystemDictionaryHandles::Long_klass().raw_value(), |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
501 "must be one of the SystemDictionaryHandles"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
502 Label L_ok, L_bad; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
503 BLOCK_COMMENT("verify_klass {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
504 __ verify_oop(obj_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
505 __ br_null(obj_reg, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
506 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
507 __ load_klass(obj_reg, temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
508 __ set(ExternalAddress(klass_addr), temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
509 __ ld_ptr(Address(temp2_reg, 0), temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
510 __ cmp(temp_reg, temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
511 __ brx(Assembler::equal, false, Assembler::pt, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
512 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
513 intptr_t super_check_offset = klass->super_check_offset(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
514 __ ld_ptr(Address(temp_reg, super_check_offset), temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
515 __ set(ExternalAddress(klass_addr), temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
516 __ ld_ptr(Address(temp2_reg, 0), temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
517 __ cmp(temp_reg, temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
518 __ brx(Assembler::equal, false, Assembler::pt, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
519 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
520 __ BIND(L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
521 __ stop(error_message); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
522 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
523 BLOCK_COMMENT("} verify_klass"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
524 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
525 #endif // ASSERT |
710 | 526 |
527 // Code generation | |
528 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | |
1916
e62345fd6a46
6997459: JSR 292 after 6994093 getting: on return to interpreted call, restored SP is corrupted
twisti
parents:
1911
diff
changeset
|
529 // I5_savedSP/O5_savedSP: sender SP (must preserve) |
1503 | 530 // G4 (Gargs): incoming argument list (must preserve) |
1916
e62345fd6a46
6997459: JSR 292 after 6994093 getting: on return to interpreted call, restored SP is corrupted
twisti
parents:
1911
diff
changeset
|
531 // G5_method: invoke methodOop |
1503 | 532 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
1916
e62345fd6a46
6997459: JSR 292 after 6994093 getting: on return to interpreted call, restored SP is corrupted
twisti
parents:
1911
diff
changeset
|
533 // O0, O1, O2, O3, O4: garbage temps, blown away |
e62345fd6a46
6997459: JSR 292 after 6994093 getting: on return to interpreted call, restored SP is corrupted
twisti
parents:
1911
diff
changeset
|
534 Register O0_mtype = O0; |
1503 | 535 Register O1_scratch = O1; |
1911
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
536 Register O2_scratch = O2; |
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
537 Register O3_scratch = O3; |
1916
e62345fd6a46
6997459: JSR 292 after 6994093 getting: on return to interpreted call, restored SP is corrupted
twisti
parents:
1911
diff
changeset
|
538 Register O4_argslot = O4; |
1911
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
539 Register O4_argbase = O4; |
1503 | 540 |
541 // emit WrongMethodType path first, to enable back-branch from main path | |
542 Label wrong_method_type; | |
543 __ bind(wrong_method_type); | |
1911
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
544 Label invoke_generic_slow_path; |
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
545 assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");; |
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
546 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
547 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeExact); |
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
548 __ brx(Assembler::notEqual, false, Assembler::pt, invoke_generic_slow_path); |
fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
jrose
parents:
1901
diff
changeset
|
549 __ delayed()->nop(); |
1916
e62345fd6a46
6997459: JSR 292 after 6994093 getting: on return to interpreted call, restored SP is corrupted
twisti
parents:
1911
diff
changeset
|
550 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType |
3451
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
3449
diff
changeset
|
551 __ mov(G3_method_handle, G3_method_handle); // already in this register |
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552 // O0 will be filled in with JavaThread in stub |
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553 __ jump_to(AddressLiteral(StubRoutines::throw_WrongMethodTypeException_entry()), O3_scratch); |
1503 | 554 __ delayed()->nop(); |
555 | |
556 // here's where control starts out: | |
557 __ align(CodeEntryAlignment); | |
558 address entry_point = __ pc(); | |
559 | |
1911
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560 // fetch the MethodType from the method handle |
3442
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561 // FIXME: Interpreter should transmit pre-popped stack pointer, to locate base of arg list. |
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562 // This would simplify several touchy bits of code. |
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|
563 // See 6984712: JSR 292 method handle calls need a clean argument base pointer |
1503 | 564 { |
565 Register tem = G5_method; | |
566 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { | |
1916
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567 __ ld_ptr(Address(tem, *pchase), O0_mtype); |
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568 tem = O0_mtype; // in case there is another indirection |
1503 | 569 } |
570 } | |
571 | |
572 // given the MethodType, find out where the MH argument is buried | |
2357
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573 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, O1_scratch)), O4_argslot); |
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574 __ ldsw( Address(O4_argslot, __ delayed_value(java_lang_invoke_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O4_argslot); |
3442
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575 __ add(__ argument_address(O4_argslot, O4_argslot, 1), O4_argbase); |
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576 // Note: argument_address uses its input as a scratch register! |
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577 Address mh_receiver_slot_addr(O4_argbase, -Interpreter::stackElementSize); |
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578 __ ld_ptr(mh_receiver_slot_addr, G3_method_handle); |
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579 |
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580 trace_method_handle(_masm, "invokeExact"); |
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|
581 |
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582 __ check_method_handle_type(O0_mtype, G3_method_handle, O1_scratch, wrong_method_type); |
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583 |
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584 // Nobody uses the MH receiver slot after this. Make sure. |
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585 DEBUG_ONLY(__ set((int32_t) 0x999999, O1_scratch); __ st_ptr(O1_scratch, mh_receiver_slot_addr)); |
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|
586 |
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587 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
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588 |
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589 // for invokeGeneric (only), apply argument and result conversions on the fly |
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590 __ bind(invoke_generic_slow_path); |
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591 #ifdef ASSERT |
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592 if (VerifyMethodHandles) { |
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|
593 Label L; |
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|
594 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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jrose
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|
595 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeGeneric); |
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6994093: MethodHandle.invokeGeneric needs porting to SPARC
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596 __ brx(Assembler::equal, false, Assembler::pt, L); |
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|
597 __ delayed()->nop(); |
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|
598 __ stop("bad methodOop::intrinsic_id"); |
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|
599 __ bind(L); |
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|
600 } |
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|
601 #endif //ASSERT |
1503 | 602 |
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changeset
|
603 // make room on the stack for another pointer: |
3442
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604 insert_arg_slots(_masm, 2 * stack_move_unit(), O4_argbase, O1_scratch, O2_scratch, O3_scratch); |
1911
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|
605 // load up an adapter from the calling type (Java weaves this) |
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|
606 Register O2_form = O2_scratch; |
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6994093: MethodHandle.invokeGeneric needs porting to SPARC
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|
607 Register O3_adapter = O3_scratch; |
2357
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608 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, O1_scratch)), O2_form); |
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fabcf26ee72f
6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
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|
609 __ load_heap_oop(Address(O2_form, __ delayed_value(java_lang_invoke_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
fabcf26ee72f
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|
610 __ verify_oop(O3_adapter); |
1911
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|
611 __ st_ptr(O3_adapter, Address(O4_argbase, 1 * Interpreter::stackElementSize)); |
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612 // As a trusted first argument, pass the type being called, so the adapter knows |
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|
613 // the actual types of the arguments and return values. |
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|
614 // (Generic invokers are shared among form-families of method-type.) |
1916
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|
615 __ st_ptr(O0_mtype, Address(O4_argbase, 0 * Interpreter::stackElementSize)); |
1911
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changeset
|
616 // FIXME: assert that O3_adapter is of the right method-type. |
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changeset
|
617 __ mov(O3_adapter, G3_method_handle); |
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|
618 trace_method_handle(_masm, "invokeGeneric"); |
1503 | 619 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
620 | |
621 return entry_point; | |
710 | 622 } |
623 | |
3442
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changeset
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624 // Workaround for C++ overloading nastiness on '0' for RegisterOrConstant. |
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changeset
|
625 static RegisterOrConstant constant(int value) { |
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|
626 return RegisterOrConstant(value); |
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|
627 } |
1503 | 628 |
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629 static void load_vmargslot(MacroAssembler* _masm, Address vmargslot_addr, Register result) { |
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|
630 __ ldsw(vmargslot_addr, result); |
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|
631 } |
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|
632 |
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changeset
|
633 static RegisterOrConstant adjust_SP_and_Gargs_down_by_slots(MacroAssembler* _masm, |
f7d55ea6ee56
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changeset
|
634 RegisterOrConstant arg_slots, |
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diff
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|
635 Register temp_reg, Register temp2_reg) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
636 // Keep the stack pointer 2*wordSize aligned. |
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changeset
|
637 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); |
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|
638 if (arg_slots.is_constant()) { |
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|
639 const int offset = arg_slots.as_constant() << LogBytesPerWord; |
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|
640 const int masked_offset = round_to(offset, 2 * BytesPerWord); |
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|
641 const int masked_offset2 = (offset + 1*BytesPerWord) & ~TwoWordAlignmentMask; |
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|
642 assert(masked_offset == masked_offset2, "must agree"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
643 __ sub(Gargs, offset, Gargs); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
644 __ sub(SP, masked_offset, SP ); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
645 return offset; |
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diff
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|
646 } else { |
1503 | 647 #ifdef ASSERT |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
648 { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
649 Label L_ok; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
650 __ cmp(arg_slots.as_register(), 0); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
651 __ br(Assembler::greaterEqual, false, Assembler::pt, L_ok); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
652 __ delayed()->nop(); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
653 __ stop("negative arg_slots"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
654 __ bind(L_ok); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
655 } |
1503 | 656 #endif |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
657 __ sll_ptr(arg_slots.as_register(), LogBytesPerWord, temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
658 __ add( temp_reg, 1*BytesPerWord, temp2_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
659 __ andn(temp2_reg, TwoWordAlignmentMask, temp2_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
660 __ sub(Gargs, temp_reg, Gargs); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
661 __ sub(SP, temp2_reg, SP ); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
662 return temp_reg; |
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|
663 } |
1503 | 664 } |
665 | |
3442
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changeset
|
666 static RegisterOrConstant adjust_SP_and_Gargs_up_by_slots(MacroAssembler* _masm, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
667 RegisterOrConstant arg_slots, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
668 Register temp_reg, Register temp2_reg) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
669 // Keep the stack pointer 2*wordSize aligned. |
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changeset
|
670 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); |
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changeset
|
671 if (arg_slots.is_constant()) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
672 const int offset = arg_slots.as_constant() << LogBytesPerWord; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
673 const int masked_offset = offset & ~TwoWordAlignmentMask; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
674 __ add(Gargs, offset, Gargs); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
675 __ add(SP, masked_offset, SP ); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
676 return offset; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
677 } else { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
678 __ sll_ptr(arg_slots.as_register(), LogBytesPerWord, temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
679 __ andn(temp_reg, TwoWordAlignmentMask, temp2_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
680 __ add(Gargs, temp_reg, Gargs); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
681 __ add(SP, temp2_reg, SP ); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
682 return temp_reg; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
683 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
684 } |
1503 | 685 |
686 // Helper to insert argument slots into the stack. | |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
687 // arg_slots must be a multiple of stack_move_unit() and < 0 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
688 // argslot_reg is decremented to point to the new (shifted) location of the argslot |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
689 // But, temp_reg ends up holding the original value of argslot_reg. |
1503 | 690 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, |
691 RegisterOrConstant arg_slots, | |
692 Register argslot_reg, | |
693 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
694 // allow constant zero |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
695 if (arg_slots.is_constant() && arg_slots.as_constant() == 0) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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696 return; |
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697 |
1503 | 698 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, |
699 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
700 | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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701 BLOCK_COMMENT("insert_arg_slots {"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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702 if (VerifyMethodHandles) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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703 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
704 if (VerifyMethodHandles) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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705 verify_stack_move(_masm, arg_slots, -1); |
1503 | 706 |
707 // Make space on the stack for the inserted argument(s). | |
708 // Then pull down everything shallower than argslot_reg. | |
709 // The stacked return address gets pulled down with everything else. | |
710 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
711 // sp -= size; | |
712 // for (temp = sp + size; temp < argslot; temp++) | |
713 // temp[-size] = temp[0] | |
714 // argslot -= size; | |
715 | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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716 // offset is temp3_reg in case of arg_slots being a register. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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717 RegisterOrConstant offset = adjust_SP_and_Gargs_up_by_slots(_masm, arg_slots, temp3_reg, temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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718 __ sub(Gargs, offset, temp_reg); // source pointer for copy |
1503 | 719 |
720 { | |
721 Label loop; | |
1849
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722 __ BIND(loop); |
1503 | 723 // pull one word down each time through the loop |
3442
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724 __ ld_ptr( Address(temp_reg, 0 ), temp2_reg); |
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725 __ st_ptr(temp2_reg, Address(temp_reg, offset) ); |
1503 | 726 __ add(temp_reg, wordSize, temp_reg); |
727 __ cmp(temp_reg, argslot_reg); | |
3442
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728 __ brx(Assembler::lessUnsigned, false, Assembler::pt, loop); |
1503 | 729 __ delayed()->nop(); // FILLME |
730 } | |
731 | |
732 // Now move the argslot down, to point to the opened-up space. | |
733 __ add(argslot_reg, offset, argslot_reg); | |
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734 BLOCK_COMMENT("} insert_arg_slots"); |
1503 | 735 } |
736 | |
737 | |
738 // Helper to remove argument slots from the stack. | |
3442
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739 // arg_slots must be a multiple of stack_move_unit() and > 0 |
1503 | 740 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, |
741 RegisterOrConstant arg_slots, | |
742 Register argslot_reg, | |
743 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
3442
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744 // allow constant zero |
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745 if (arg_slots.is_constant() && arg_slots.as_constant() == 0) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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746 return; |
1503 | 747 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, |
748 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
749 | |
3442
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750 BLOCK_COMMENT("remove_arg_slots {"); |
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751 if (VerifyMethodHandles) |
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752 verify_argslots(_masm, arg_slots, argslot_reg, temp_reg, temp2_reg, false, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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753 "deleted argument(s) must fall within current frame"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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754 if (VerifyMethodHandles) |
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755 verify_stack_move(_masm, arg_slots, +1); |
1503 | 756 |
757 // Pull up everything shallower than argslot. | |
758 // Then remove the excess space on the stack. | |
759 // The stacked return address gets pulled up with everything else. | |
760 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
761 // for (temp = argslot-1; temp >= sp; --temp) | |
762 // temp[size] = temp[0] | |
763 // argslot += size; | |
764 // sp += size; | |
3442
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765 |
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766 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); |
1503 | 767 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy |
3442
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768 |
1503 | 769 { |
3442
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770 Label L_loop; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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771 __ BIND(L_loop); |
1503 | 772 // pull one word up each time through the loop |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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773 __ ld_ptr( Address(temp_reg, 0 ), temp2_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
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774 __ st_ptr(temp2_reg, Address(temp_reg, offset) ); |
1503 | 775 __ sub(temp_reg, wordSize, temp_reg); |
776 __ cmp(temp_reg, Gargs); | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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777 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_loop); |
1503 | 778 __ delayed()->nop(); // FILLME |
779 } | |
780 | |
781 // And adjust the argslot address to point at the deletion point. | |
782 __ add(argslot_reg, offset, argslot_reg); | |
783 | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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784 // We don't need the offset at this point anymore, just adjust SP and Gargs. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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785 (void) adjust_SP_and_Gargs_up_by_slots(_masm, arg_slots, temp3_reg, temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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786 |
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787 BLOCK_COMMENT("} remove_arg_slots"); |
1503 | 788 } |
789 | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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790 // Helper to copy argument slots to the top of the stack. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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791 // The sequence starts with argslot_reg and is counted by slot_count |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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792 // slot_count must be a multiple of stack_move_unit() and >= 0 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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793 // This function blows the temps but does not change argslot_reg. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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794 void MethodHandles::push_arg_slots(MacroAssembler* _masm, |
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795 Register argslot_reg, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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796 RegisterOrConstant slot_count, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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797 Register temp_reg, Register temp2_reg) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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798 // allow constant zero |
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799 if (slot_count.is_constant() && slot_count.as_constant() == 0) |
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800 return; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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801 assert_different_registers(argslot_reg, temp_reg, temp2_reg, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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802 (!slot_count.is_register() ? Gargs : slot_count.as_register()), |
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803 SP); |
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804 assert(Interpreter::stackElementSize == wordSize, "else change this code"); |
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805 |
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806 BLOCK_COMMENT("push_arg_slots {"); |
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807 if (VerifyMethodHandles) |
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808 verify_stack_move(_masm, slot_count, 0); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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809 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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810 RegisterOrConstant offset = adjust_SP_and_Gargs_down_by_slots(_masm, slot_count, temp2_reg, temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
811 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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812 if (slot_count.is_constant()) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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813 for (int i = slot_count.as_constant() - 1; i >= 0; i--) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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814 __ ld_ptr( Address(argslot_reg, i * wordSize), temp_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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815 __ st_ptr(temp_reg, Address(Gargs, i * wordSize)); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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816 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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817 } else { |
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818 Label L_plural, L_loop, L_break; |
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819 // Emit code to dynamically check for the common cases, zero and one slot. |
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820 __ cmp(slot_count.as_register(), (int32_t) 1); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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821 __ br(Assembler::greater, false, Assembler::pn, L_plural); |
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822 __ delayed()->nop(); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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823 __ br(Assembler::less, false, Assembler::pn, L_break); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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824 __ delayed()->nop(); |
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825 __ ld_ptr( Address(argslot_reg, 0), temp_reg); |
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826 __ st_ptr(temp_reg, Address(Gargs, 0)); |
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827 __ ba(false, L_break); |
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828 __ delayed()->nop(); // FILLME |
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829 __ BIND(L_plural); |
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830 |
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831 // Loop for 2 or more: |
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832 // top = &argslot[slot_count] |
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833 // while (top > argslot) *(--Gargs) = *(--top) |
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834 Register top_reg = temp_reg; |
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835 __ add(argslot_reg, offset, top_reg); |
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|
836 __ add(Gargs, offset, Gargs ); // move back up again so we can go down |
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|
837 __ BIND(L_loop); |
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838 __ sub(top_reg, wordSize, top_reg); |
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839 __ sub(Gargs, wordSize, Gargs ); |
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840 __ ld_ptr( Address(top_reg, 0), temp2_reg); |
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841 __ st_ptr(temp2_reg, Address(Gargs, 0)); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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842 __ cmp(top_reg, argslot_reg); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
843 __ brx(Assembler::greaterUnsigned, false, Assembler::pt, L_loop); |
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|
844 __ delayed()->nop(); // FILLME |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
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|
845 __ BIND(L_break); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
846 } |
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|
847 BLOCK_COMMENT("} push_arg_slots"); |
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|
848 } |
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|
849 |
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|
850 // in-place movement; no change to Gargs |
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|
851 // blows temp_reg, temp2_reg |
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852 void MethodHandles::move_arg_slots_up(MacroAssembler* _masm, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
853 Register bottom_reg, // invariant |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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854 Address top_addr, // can use temp_reg |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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855 RegisterOrConstant positive_distance_in_slots, // destroyed if register |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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856 Register temp_reg, Register temp2_reg) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
857 assert_different_registers(bottom_reg, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
858 temp_reg, temp2_reg, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
859 positive_distance_in_slots.register_or_noreg()); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
860 BLOCK_COMMENT("move_arg_slots_up {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
861 Label L_loop, L_break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
862 Register top_reg = temp_reg; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
863 if (!top_addr.is_same_address(Address(top_reg, 0))) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
864 __ add(top_addr, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
865 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
866 // Detect empty (or broken) loop: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
867 #ifdef ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
868 if (VerifyMethodHandles) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
869 // Verify that &bottom < &top (non-empty interval) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
870 Label L_ok, L_bad; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
871 if (positive_distance_in_slots.is_register()) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
872 __ cmp(positive_distance_in_slots.as_register(), (int32_t) 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
873 __ br(Assembler::lessEqual, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
874 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
875 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
876 __ cmp(bottom_reg, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
877 __ brx(Assembler::lessUnsigned, false, Assembler::pt, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
878 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
879 __ BIND(L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
880 __ stop("valid bounds (copy up)"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
881 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
882 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
883 #endif |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
884 __ cmp(bottom_reg, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
885 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pn, L_break); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
886 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
887 // work top down to bottom, copying contiguous data upwards |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
888 // In pseudo-code: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
889 // while (--top >= bottom) *(top + distance) = *(top + 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
890 RegisterOrConstant offset = __ argument_offset(positive_distance_in_slots, positive_distance_in_slots.register_or_noreg()); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
891 __ BIND(L_loop); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
892 __ sub(top_reg, wordSize, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
893 __ ld_ptr( Address(top_reg, 0 ), temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
894 __ st_ptr(temp2_reg, Address(top_reg, offset) ); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
895 __ cmp(top_reg, bottom_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
896 __ brx(Assembler::greaterUnsigned, false, Assembler::pt, L_loop); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
897 __ delayed()->nop(); // FILLME |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
898 assert(Interpreter::stackElementSize == wordSize, "else change loop"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
899 __ BIND(L_break); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
900 BLOCK_COMMENT("} move_arg_slots_up"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
901 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
902 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
903 // in-place movement; no change to rsp |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
904 // blows temp_reg, temp2_reg |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
905 void MethodHandles::move_arg_slots_down(MacroAssembler* _masm, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
906 Address bottom_addr, // can use temp_reg |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
907 Register top_reg, // invariant |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
908 RegisterOrConstant negative_distance_in_slots, // destroyed if register |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
909 Register temp_reg, Register temp2_reg) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
910 assert_different_registers(top_reg, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
911 negative_distance_in_slots.register_or_noreg(), |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
912 temp_reg, temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
913 BLOCK_COMMENT("move_arg_slots_down {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
914 Label L_loop, L_break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
915 Register bottom_reg = temp_reg; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
916 if (!bottom_addr.is_same_address(Address(bottom_reg, 0))) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
917 __ add(bottom_addr, bottom_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
918 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
919 // Detect empty (or broken) loop: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
920 #ifdef ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
921 assert(!negative_distance_in_slots.is_constant() || negative_distance_in_slots.as_constant() < 0, ""); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
922 if (VerifyMethodHandles) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
923 // Verify that &bottom < &top (non-empty interval) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
924 Label L_ok, L_bad; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
925 if (negative_distance_in_slots.is_register()) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
926 __ cmp(negative_distance_in_slots.as_register(), (int32_t) 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
927 __ br(Assembler::greaterEqual, false, Assembler::pn, L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
928 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
929 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
930 __ cmp(bottom_reg, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
931 __ brx(Assembler::lessUnsigned, false, Assembler::pt, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
932 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
933 __ BIND(L_bad); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
934 __ stop("valid bounds (copy down)"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
935 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
936 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
937 #endif |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
938 __ cmp(bottom_reg, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
939 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pn, L_break); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
940 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
941 // work bottom up to top, copying contiguous data downwards |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
942 // In pseudo-code: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
943 // while (bottom < top) *(bottom - distance) = *(bottom + 0), bottom++; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
944 RegisterOrConstant offset = __ argument_offset(negative_distance_in_slots, negative_distance_in_slots.register_or_noreg()); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
945 __ BIND(L_loop); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
946 __ ld_ptr( Address(bottom_reg, 0 ), temp2_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
947 __ st_ptr(temp2_reg, Address(bottom_reg, offset) ); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
948 __ add(bottom_reg, wordSize, bottom_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
949 __ cmp(bottom_reg, top_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
950 __ brx(Assembler::lessUnsigned, false, Assembler::pt, L_loop); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
951 __ delayed()->nop(); // FILLME |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
952 assert(Interpreter::stackElementSize == wordSize, "else change loop"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
953 __ BIND(L_break); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
954 BLOCK_COMMENT("} move_arg_slots_down"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
955 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
956 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
957 // Copy from a field or array element to a stacked argument slot. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
958 // is_element (ignored) says whether caller is loading an array element instead of an instance field. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
959 void MethodHandles::move_typed_arg(MacroAssembler* _masm, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
960 BasicType type, bool is_element, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
961 Address value_src, Address slot_dest, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
962 Register temp_reg) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
963 assert(!slot_dest.uses(temp_reg), "must be different register"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
964 BLOCK_COMMENT(!is_element ? "move_typed_arg {" : "move_typed_arg { (array element)"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
965 if (type == T_OBJECT || type == T_ARRAY) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
966 __ load_heap_oop(value_src, temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
967 __ verify_oop(temp_reg); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
968 __ st_ptr(temp_reg, slot_dest); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
969 } else if (type != T_VOID) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
970 int arg_size = type2aelembytes(type); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
971 bool arg_is_signed = is_signed_subword_type(type); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
972 int slot_size = is_subword_type(type) ? type2aelembytes(T_INT) : arg_size; // store int sub-words as int |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
973 __ load_sized_value( value_src, temp_reg, arg_size, arg_is_signed); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
974 __ store_sized_value(temp_reg, slot_dest, slot_size ); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
975 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
976 BLOCK_COMMENT("} move_typed_arg"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
977 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
978 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
979 // Cf. TemplateInterpreterGenerator::generate_return_entry_for and |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
980 // InterpreterMacroAssembler::save_return_value |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
981 void MethodHandles::move_return_value(MacroAssembler* _masm, BasicType type, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
982 Address return_slot) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
983 BLOCK_COMMENT("move_return_value {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
984 // Look at the type and pull the value out of the corresponding register. |
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985 if (type == T_VOID) { |
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986 // nothing to do |
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987 } else if (type == T_OBJECT) { |
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988 __ verify_oop(O0); |
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989 __ st_ptr(O0, return_slot); |
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990 } else if (type == T_INT || is_subword_type(type)) { |
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991 int type_size = type2aelembytes(T_INT); |
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992 __ store_sized_value(O0, return_slot, type_size); |
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993 } else if (type == T_LONG) { |
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994 // store the value by parts |
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995 // Note: We assume longs are continguous (if misaligned) on the interpreter stack. |
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996 #if !defined(_LP64) && defined(COMPILER2) |
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997 __ stx(G1, return_slot); |
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998 #else |
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999 #ifdef _LP64 |
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1000 __ stx(O0, return_slot); |
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1001 #else |
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1002 if (return_slot.has_disp()) { |
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1003 // The displacement is a constant |
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1004 __ st(O0, return_slot); |
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1005 __ st(O1, return_slot.plus_disp(Interpreter::stackElementSize)); |
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1006 } else { |
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1007 __ std(O0, return_slot); |
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1008 } |
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1009 #endif |
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1010 #endif |
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1011 } else if (type == T_FLOAT) { |
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1012 __ stf(FloatRegisterImpl::S, Ftos_f, return_slot); |
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1013 } else if (type == T_DOUBLE) { |
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1014 __ stf(FloatRegisterImpl::D, Ftos_f, return_slot); |
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1015 } else { |
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1016 ShouldNotReachHere(); |
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1017 } |
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1018 BLOCK_COMMENT("} move_return_value"); |
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1019 } |
1503 | 1020 |
1021 #ifndef PRODUCT | |
1022 extern "C" void print_method_handle(oop mh); | |
1023 void trace_method_handle_stub(const char* adaptername, | |
3336
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1024 oopDesc* mh, |
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1025 intptr_t* saved_sp) { |
3442
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1026 bool has_mh = (strstr(adaptername, "return/") == NULL); // return adapters don't have mh |
3336
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1027 tty->print_cr("MH %s mh="INTPTR_FORMAT " saved_sp=" INTPTR_FORMAT, adaptername, (intptr_t) mh, saved_sp); |
3442
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1028 if (has_mh) |
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1029 print_method_handle(mh); |
1503 | 1030 } |
1849
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1031 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
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1032 if (!TraceMethodHandles) return; |
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1033 BLOCK_COMMENT("trace_method_handle {"); |
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1034 // save: Gargs, O5_savedSP |
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1035 __ save_frame(16); |
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1036 __ set((intptr_t) adaptername, O0); |
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1037 __ mov(G3_method_handle, O1); |
3336
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1038 __ mov(I5_savedSP, O2); |
1849
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1039 __ mov(G3_method_handle, L3); |
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1040 __ mov(Gargs, L4); |
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1041 __ mov(G5_method_type, L5); |
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1042 __ call_VM_leaf(L7, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); |
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1043 |
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1044 __ mov(L3, G3_method_handle); |
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1045 __ mov(L4, Gargs); |
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1046 __ mov(L5, G5_method_type); |
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1047 __ restore(); |
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1048 BLOCK_COMMENT("} trace_method_handle"); |
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1049 } |
1503 | 1050 #endif // PRODUCT |
1051 | |
1507
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1052 // which conversion op types are implemented here? |
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1053 int MethodHandles::adapter_conversion_ops_supported_mask() { |
2357
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1054 return ((1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_ONLY) |
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1055 |(1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_RAW) |
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1056 |(1<<java_lang_invoke_AdapterMethodHandle::OP_CHECK_CAST) |
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1057 |(1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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1058 |(1<<java_lang_invoke_AdapterMethodHandle::OP_REF_TO_PRIM) |
3442
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1059 // OP_PRIM_TO_REF is below... |
2357
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1060 |(1<<java_lang_invoke_AdapterMethodHandle::OP_SWAP_ARGS) |
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1061 |(1<<java_lang_invoke_AdapterMethodHandle::OP_ROT_ARGS) |
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1062 |(1<<java_lang_invoke_AdapterMethodHandle::OP_DUP_ARGS) |
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1063 |(1<<java_lang_invoke_AdapterMethodHandle::OP_DROP_ARGS) |
3442
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1064 // OP_COLLECT_ARGS is below... |
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1065 |(1<<java_lang_invoke_AdapterMethodHandle::OP_SPREAD_ARGS) |
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1066 |(!UseRicochetFrames ? 0 : |
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1067 java_lang_invoke_MethodTypeForm::vmlayout_offset_in_bytes() <= 0 ? 0 : |
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1068 ((1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF) |
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1069 |(1<<java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS) |
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1070 |(1<<java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS) |
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|
1071 ) |
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|
1072 ) |
1507
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|
1073 ); |
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1074 } |
1503 | 1075 |
1076 //------------------------------------------------------------------------------ | |
1077 // MethodHandles::generate_method_handle_stub | |
1078 // | |
710 | 1079 // Generate an "entry" field for a method handle. |
1080 // This determines how the method handle will respond to calls. | |
2116
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1081 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
3442
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1082 MethodHandles::EntryKind ek_orig = ek_original_kind(ek); |
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1083 |
1503 | 1084 // Here is the register state during an interpreted call, |
1085 // as set up by generate_method_handle_interpreter_entry(): | |
1086 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
1087 // - G3: receiver method handle | |
1088 // - O5_savedSP: sender SP (must preserve) | |
1089 | |
3442
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1090 const Register O0_scratch = O0; |
2088
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7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
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1091 const Register O1_scratch = O1; |
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diff
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|
1092 const Register O2_scratch = O2; |
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diff
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|
1093 const Register O3_scratch = O3; |
3442
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1094 const Register O4_scratch = O4; |
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|
1095 const Register G5_scratch = G5; |
2088
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diff
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|
1096 |
3442
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|
1097 // Often used names: |
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|
1098 const Register O0_argslot = O0; |
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|
1099 |
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|
1100 // Argument registers for _raise_exception: |
2088
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1101 const Register O0_code = O0; |
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1102 const Register O1_actual = O1; |
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1103 const Register O2_required = O2; |
1503 | 1104 |
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1105 guarantee(java_lang_invoke_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); |
1503 | 1106 |
1107 // Some handy addresses: | |
1108 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
2321
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7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
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2258
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|
1109 Address G5_method_fce( G5_method, in_bytes(methodOopDesc::from_compiled_offset())); |
1503 | 1110 |
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1111 Address G3_mh_vmtarget( G3_method_handle, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes()); |
1503 | 1112 |
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1113 Address G3_dmh_vmindex( G3_method_handle, java_lang_invoke_DirectMethodHandle::vmindex_offset_in_bytes()); |
1503 | 1114 |
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1115 Address G3_bmh_vmargslot( G3_method_handle, java_lang_invoke_BoundMethodHandle::vmargslot_offset_in_bytes()); |
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1116 Address G3_bmh_argument( G3_method_handle, java_lang_invoke_BoundMethodHandle::argument_offset_in_bytes()); |
1503 | 1117 |
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1118 Address G3_amh_vmargslot( G3_method_handle, java_lang_invoke_AdapterMethodHandle::vmargslot_offset_in_bytes()); |
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1119 Address G3_amh_argument ( G3_method_handle, java_lang_invoke_AdapterMethodHandle::argument_offset_in_bytes()); |
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1120 Address G3_amh_conversion(G3_method_handle, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes()); |
1503 | 1121 |
1122 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
1123 | |
1124 if (have_entry(ek)) { | |
1125 __ nop(); // empty stubs make SG sick | |
1126 return; | |
1127 } | |
1128 | |
1129 address interp_entry = __ pc(); | |
1130 | |
1849
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1131 trace_method_handle(_masm, entry_name(ek)); |
1503 | 1132 |
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1133 BLOCK_COMMENT(err_msg("Entry %s {", entry_name(ek))); |
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1134 |
1503 | 1135 switch ((int) ek) { |
1136 case _raise_exception: | |
1137 { | |
1138 // Not a real MH entry, but rather shared code for raising an | |
2321
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1139 // exception. Since we use the compiled entry, arguments are |
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1140 // expected in compiler argument registers. |
2116
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1141 assert(raise_exception_method(), "must be set"); |
2321
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1142 assert(raise_exception_method()->from_compiled_entry(), "method must be linked"); |
1503 | 1143 |
1144 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
1145 | |
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1146 Label L_no_method; |
2357
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1147 // FIXME: fill in _raise_exception_method with a suitable java.lang.invoke method |
1503 | 1148 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); |
1149 __ ld_ptr(Address(G5_method, 0), G5_method); | |
1150 | |
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1151 const int jobject_oop_offset = 0; |
1503 | 1152 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); |
1153 | |
1154 __ verify_oop(G5_method); | |
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1155 __ jump_indirect_to(G5_method_fce, O3_scratch); // jump to compiled entry |
1503 | 1156 __ delayed()->nop(); |
1157 } | |
1158 break; | |
1159 | |
1160 case _invokestatic_mh: | |
1161 case _invokespecial_mh: | |
1162 { | |
1846 | 1163 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 1164 __ verify_oop(G5_method); |
1165 // Same as TemplateTable::invokestatic or invokespecial, | |
1166 // minus the CP setup and profiling: | |
1167 if (ek == _invokespecial_mh) { | |
1168 // Must load & check the first argument before entering the target method. | |
1169 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
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1170 __ ld_ptr(__ argument_address(O0_argslot, O0_argslot, -1), G3_method_handle); |
1503 | 1171 __ null_check(G3_method_handle); |
1172 __ verify_oop(G3_method_handle); | |
1173 } | |
1174 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
1175 __ delayed()->nop(); | |
1176 } | |
1177 break; | |
1178 | |
1179 case _invokevirtual_mh: | |
1180 { | |
1181 // Same as TemplateTable::invokevirtual, | |
1182 // minus the CP setup and profiling: | |
1183 | |
1184 // Pick out the vtable index and receiver offset from the MH, | |
1185 // and then we can discard it: | |
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1186 Register O2_index = O2_scratch; |
1503 | 1187 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); |
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1188 __ ldsw(G3_dmh_vmindex, O2_index); |
1503 | 1189 // Note: The verifier allows us to ignore G3_mh_vmtarget. |
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1190 __ ld_ptr(__ argument_address(O0_argslot, O0_argslot, -1), G3_method_handle); |
1503 | 1191 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); |
1192 | |
1193 // Get receiver klass: | |
1194 Register O0_klass = O0_argslot; | |
1195 __ load_klass(G3_method_handle, O0_klass); | |
1196 __ verify_oop(O0_klass); | |
1197 | |
1198 // Get target methodOop & entry point: | |
1199 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
1200 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
1201 | |
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1202 __ sll_ptr(O2_index, LogBytesPerWord, O2_index); |
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1203 __ add(O0_klass, O2_index, O0_klass); |
1503 | 1204 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); |
1205 __ ld_ptr(vtable_entry_addr, G5_method); | |
1206 | |
1207 __ verify_oop(G5_method); | |
1208 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
1209 __ delayed()->nop(); | |
1210 } | |
1211 break; | |
1212 | |
1213 case _invokeinterface_mh: | |
1214 { | |
1215 // Same as TemplateTable::invokeinterface, | |
1216 // minus the CP setup and profiling: | |
1217 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
1218 Register O1_intf = O1_scratch; | |
3442
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1219 Register G5_index = G5_scratch; |
1846 | 1220 __ load_heap_oop(G3_mh_vmtarget, O1_intf); |
1503 | 1221 __ ldsw(G3_dmh_vmindex, G5_index); |
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1222 __ ld_ptr(__ argument_address(O0_argslot, O0_argslot, -1), G3_method_handle); |
1503 | 1223 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); |
1224 | |
1225 // Get receiver klass: | |
1226 Register O0_klass = O0_argslot; | |
1227 __ load_klass(G3_method_handle, O0_klass); | |
1228 __ verify_oop(O0_klass); | |
1229 | |
1230 // Get interface: | |
1231 Label no_such_interface; | |
1232 __ verify_oop(O1_intf); | |
1233 __ lookup_interface_method(O0_klass, O1_intf, | |
1234 // Note: next two args must be the same: | |
1235 G5_index, G5_method, | |
1236 O2_scratch, | |
1237 O3_scratch, | |
1238 no_such_interface); | |
1239 | |
1240 __ verify_oop(G5_method); | |
1241 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
1242 __ delayed()->nop(); | |
1243 | |
1244 __ bind(no_such_interface); | |
1245 // Throw an exception. | |
1246 // For historical reasons, it will be IncompatibleClassChangeError. | |
1247 __ unimplemented("not tested yet"); | |
2088
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|
1248 __ ld_ptr(Address(O1_intf, java_mirror_offset), O2_required); // required interface |
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|
1249 __ mov( O0_klass, O1_actual); // bad receiver |
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|
1250 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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|
1251 __ delayed()->mov(Bytecodes::_invokeinterface, O0_code); // who is complaining? |
1503 | 1252 } |
1253 break; | |
1254 | |
1255 case _bound_ref_mh: | |
1256 case _bound_int_mh: | |
1257 case _bound_long_mh: | |
1258 case _bound_ref_direct_mh: | |
1259 case _bound_int_direct_mh: | |
1260 case _bound_long_direct_mh: | |
1261 { | |
1262 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
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1263 BasicType arg_type = ek_bound_mh_arg_type(ek); |
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1264 int arg_slots = type2size[arg_type]; |
1503 | 1265 |
1266 // Make room for the new argument: | |
3442
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1267 load_vmargslot(_masm, G3_bmh_vmargslot, O0_argslot); |
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1268 __ add(__ argument_address(O0_argslot, O0_argslot), O0_argslot); |
1503 | 1269 |
3442
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1270 insert_arg_slots(_masm, arg_slots * stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
1503 | 1271 |
1272 // Store bound argument into the new stack slot: | |
1846 | 1273 __ load_heap_oop(G3_bmh_argument, O1_scratch); |
1503 | 1274 if (arg_type == T_OBJECT) { |
1275 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
1276 } else { | |
1277 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
3442
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1278 move_typed_arg(_masm, arg_type, false, |
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|
1279 prim_value_addr, |
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|
1280 Address(O0_argslot, 0), |
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|
1281 O2_scratch); // must be an even register for !_LP64 long moves (uses O2/O3) |
1503 | 1282 } |
1283 | |
1284 if (direct_to_method) { | |
1846 | 1285 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 1286 __ verify_oop(G5_method); |
1287 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
1288 __ delayed()->nop(); | |
1289 } else { | |
1846 | 1290 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); // target is a methodOop |
1503 | 1291 __ verify_oop(G3_method_handle); |
1292 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
1293 } | |
1294 } | |
1295 break; | |
1296 | |
1297 case _adapter_retype_only: | |
1298 case _adapter_retype_raw: | |
1299 // Immediately jump to the next MH layer: | |
1846 | 1300 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
3442
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1301 __ verify_oop(G3_method_handle); |
1503 | 1302 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1303 // This is OK when all parameter types widen. | |
1304 // It is also OK when a return type narrows. | |
1305 break; | |
1306 | |
1307 case _adapter_check_cast: | |
1308 { | |
1309 // Check a reference argument before jumping to the next layer of MH: | |
3442
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1310 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
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1311 Address vmarg = __ argument_address(O0_argslot, O0_argslot); |
1503 | 1312 |
1313 // What class are we casting to? | |
3442
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1314 Register O1_klass = O1_scratch; // Interesting AMH data. |
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1315 __ load_heap_oop(G3_amh_argument, O1_klass); // This is a Class object! |
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1316 load_klass_from_Class(_masm, O1_klass, O2_scratch, O3_scratch); |
1503 | 1317 |
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1318 Label L_done; |
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1319 __ ld_ptr(vmarg, O2_scratch); |
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1320 __ tst(O2_scratch); |
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|
1321 __ brx(Assembler::zero, false, Assembler::pn, L_done); // No cast if null. |
1503 | 1322 __ delayed()->nop(); |
3442
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1323 __ load_klass(O2_scratch, O2_scratch); |
1503 | 1324 |
1325 // Live at this point: | |
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1326 // - O0_argslot : argslot index in vmarg; may be required in the failing path |
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1327 // - O1_klass : klass required by the target method |
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1328 // - O2_scratch : argument klass to test |
1503 | 1329 // - G3_method_handle: adapter method handle |
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1330 __ check_klass_subtype(O2_scratch, O1_klass, O3_scratch, O4_scratch, L_done); |
1503 | 1331 |
1332 // If we get here, the type check failed! | |
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1333 __ load_heap_oop(G3_amh_argument, O2_required); // required class |
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|
1334 __ ld_ptr( vmarg, O1_actual); // bad object |
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1335 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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1336 __ delayed()->mov(Bytecodes::_checkcast, O0_code); // who is complaining? |
1503 | 1337 |
3442
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1338 __ BIND(L_done); |
1503 | 1339 // Get the new MH: |
1846 | 1340 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1341 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1342 } | |
1343 break; | |
1344 | |
1345 case _adapter_prim_to_prim: | |
1346 case _adapter_ref_to_prim: | |
1347 // Handled completely by optimized cases. | |
1348 __ stop("init_AdapterMethodHandle should not issue this"); | |
1349 break; | |
1350 | |
1351 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
1352 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
1353 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
1354 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
1355 { | |
1356 // Perform an in-place conversion to int or an int subword. | |
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1357 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
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1358 Address value; |
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|
1359 Address vmarg; |
1503 | 1360 bool value_left_justified = false; |
1361 | |
1362 switch (ek) { | |
1363 case _adapter_opt_i2i: | |
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1364 value = vmarg = __ argument_address(O0_argslot, O0_argslot); |
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1365 break; |
1503 | 1366 case _adapter_opt_l2i: |
1901
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1367 { |
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1368 // just delete the extra slot |
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1369 #ifdef _LP64 |
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1370 // In V9, longs are given 2 64-bit slots in the interpreter, but the |
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1371 // data is passed in only 1 slot. |
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1372 // Keep the second slot. |
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1373 __ add(__ argument_address(O0_argslot, O0_argslot, -1), O0_argslot); |
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1374 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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|
1375 value = Address(O0_argslot, 4); // Get least-significant 32-bit of 64-bit value. |
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1376 vmarg = Address(O0_argslot, Interpreter::stackElementSize); |
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1377 #else |
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1378 // Keep the first slot. |
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1379 __ add(__ argument_address(O0_argslot, O0_argslot), O0_argslot); |
1901
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1380 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
2009
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1381 value = Address(O0_argslot, 0); |
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1382 vmarg = value; |
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1383 #endif |
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1384 } |
1503 | 1385 break; |
1386 case _adapter_opt_unboxi: | |
1387 { | |
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1388 vmarg = __ argument_address(O0_argslot, O0_argslot); |
1503 | 1389 // Load the value up from the heap. |
1390 __ ld_ptr(vmarg, O1_scratch); | |
1391 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
1392 #ifdef ASSERT | |
1393 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
1394 if (is_subword_type(BasicType(bt))) | |
1395 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
1396 } | |
1397 #endif | |
1398 __ null_check(O1_scratch, value_offset); | |
1399 value = Address(O1_scratch, value_offset); | |
1400 #ifdef _BIG_ENDIAN | |
1401 // Values stored in objects are packed. | |
1402 value_left_justified = true; | |
1403 #endif | |
1404 } | |
1405 break; | |
1406 default: | |
1407 ShouldNotReachHere(); | |
1408 } | |
1409 | |
1410 // This check is required on _BIG_ENDIAN | |
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1411 Register G5_vminfo = G5_scratch; |
1503 | 1412 __ ldsw(G3_amh_conversion, G5_vminfo); |
1413 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
1414 | |
1415 // Original 32-bit vmdata word must be of this form: | |
1416 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
1417 __ lduw(value, O1_scratch); | |
1418 if (!value_left_justified) | |
1419 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
1420 Label zero_extend, done; | |
1421 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
1422 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
1423 __ delayed()->nop(); | |
1424 | |
1425 // this path is taken for int->byte, int->short | |
1426 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
1427 __ ba(false, done); | |
1428 __ delayed()->nop(); | |
1429 | |
1430 __ bind(zero_extend); | |
1431 // this is taken for int->char | |
1432 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
1433 | |
1434 __ bind(done); | |
1435 __ st(O1_scratch, vmarg); | |
1436 | |
1437 // Get the new MH: | |
1846 | 1438 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1439 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1440 } | |
1441 break; | |
1442 | |
1443 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
1444 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
1445 { | |
1446 // Perform an in-place int-to-long or ref-to-long conversion. | |
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1447 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
1503 | 1448 |
1449 // On big-endian machine we duplicate the slot and store the MSW | |
1450 // in the first slot. | |
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1451 __ add(__ argument_address(O0_argslot, O0_argslot, 1), O0_argslot); |
1503 | 1452 |
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1453 insert_arg_slots(_masm, stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
1503 | 1454 |
1455 Address arg_lsw(O0_argslot, 0); | |
1506 | 1456 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
1503 | 1457 |
1458 switch (ek) { | |
1459 case _adapter_opt_i2l: | |
1460 { | |
2382
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1461 #ifdef _LP64 |
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1462 __ ldsw(arg_lsw, O2_scratch); // Load LSW sign-extended |
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1463 #else |
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1464 __ ldsw(arg_lsw, O3_scratch); // Load LSW sign-extended |
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1465 __ srlx(O3_scratch, BitsPerInt, O2_scratch); // Move MSW value to lower 32-bits for std |
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1466 #endif |
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1467 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 |
1503 | 1468 } |
1469 break; | |
1470 case _adapter_opt_unboxl: | |
1471 { | |
1472 // Load the value up from the heap. | |
1473 __ ld_ptr(arg_lsw, O1_scratch); | |
1474 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
1475 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
1476 __ null_check(O1_scratch, value_offset); | |
1477 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
1478 __ st_long(O2_scratch, arg_msw); | |
1479 } | |
1480 break; | |
1481 default: | |
1482 ShouldNotReachHere(); | |
1483 } | |
1484 | |
1846 | 1485 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1486 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1487 } | |
1488 break; | |
1489 | |
1490 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
1491 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
1492 { | |
1493 // perform an in-place floating primitive conversion | |
1494 __ unimplemented(entry_name(ek)); | |
1495 } | |
1496 break; | |
1497 | |
1498 case _adapter_prim_to_ref: | |
1499 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1500 break; | |
1501 | |
1502 case _adapter_swap_args: | |
1503 case _adapter_rot_args: | |
1504 // handled completely by optimized cases | |
1505 __ stop("init_AdapterMethodHandle should not issue this"); | |
1506 break; | |
1507 | |
1508 case _adapter_opt_swap_1: | |
1509 case _adapter_opt_swap_2: | |
1510 case _adapter_opt_rot_1_up: | |
1511 case _adapter_opt_rot_1_down: | |
1512 case _adapter_opt_rot_2_up: | |
1513 case _adapter_opt_rot_2_down: | |
1514 { | |
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1515 int swap_slots = ek_adapter_opt_swap_slots(ek); |
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1516 int rotate = ek_adapter_opt_swap_mode(ek); |
1503 | 1517 |
1518 // 'argslot' is the position of the first argument to swap. | |
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1519 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
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1520 __ add(__ argument_address(O0_argslot, O0_argslot), O0_argslot); |
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1521 if (VerifyMethodHandles) |
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1522 verify_argslot(_masm, O0_argslot, O2_scratch, "swap point must fall within current frame"); |
1503 | 1523 |
1524 // 'vminfo' is the second. | |
1525 Register O1_destslot = O1_scratch; | |
3442
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1526 load_conversion_vminfo(_masm, G3_amh_conversion, O1_destslot); |
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1527 __ add(__ argument_address(O1_destslot, O1_destslot), O1_destslot); |
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1528 if (VerifyMethodHandles) |
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1529 verify_argslot(_masm, O1_destslot, O2_scratch, "swap point must fall within current frame"); |
1503 | 1530 |
3442
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1531 assert(Interpreter::stackElementSize == wordSize, "else rethink use of wordSize here"); |
1503 | 1532 if (!rotate) { |
3442
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1533 // simple swap |
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1534 for (int i = 0; i < swap_slots; i++) { |
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1535 __ ld_ptr( Address(O0_argslot, i * wordSize), O2_scratch); |
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1536 __ ld_ptr( Address(O1_destslot, i * wordSize), O3_scratch); |
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1537 __ st_ptr(O3_scratch, Address(O0_argslot, i * wordSize)); |
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1538 __ st_ptr(O2_scratch, Address(O1_destslot, i * wordSize)); |
1503 | 1539 } |
1540 } else { | |
3442
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1541 // A rotate is actually pair of moves, with an "odd slot" (or pair) |
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1542 // changing place with a series of other slots. |
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1543 // First, push the "odd slot", which is going to get overwritten |
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1544 switch (swap_slots) { |
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1545 case 2 : __ ld_ptr(Address(O0_argslot, 1 * wordSize), O4_scratch); // fall-thru |
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1546 case 1 : __ ld_ptr(Address(O0_argslot, 0 * wordSize), O3_scratch); break; |
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1547 default: ShouldNotReachHere(); |
1503 | 1548 } |
1549 if (rotate > 0) { | |
3442
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1550 // Here is rotate > 0: |
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1551 // (low mem) (high mem) |
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1552 // | dest: more_slots... | arg: odd_slot :arg+1 | |
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1553 // => |
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1554 // | dest: odd_slot | dest+1: more_slots... :arg+1 | |
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1555 // work argslot down to destslot, copying contiguous data upwards |
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1556 // pseudo-code: |
1503 | 1557 // argslot = src_addr - swap_bytes |
1558 // destslot = dest_addr | |
3442
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1559 // while (argslot >= destslot) *(argslot + swap_bytes) = *(argslot + 0), argslot--; |
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1560 move_arg_slots_up(_masm, |
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1561 O1_destslot, |
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1562 Address(O0_argslot, 0), |
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1563 swap_slots, |
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1564 O0_argslot, O2_scratch); |
1503 | 1565 } else { |
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1566 // Here is the other direction, rotate < 0: |
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1567 // (low mem) (high mem) |
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1568 // | arg: odd_slot | arg+1: more_slots... :dest+1 | |
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1569 // => |
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1570 // | arg: more_slots... | dest: odd_slot :dest+1 | |
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1571 // work argslot up to destslot, copying contiguous data downwards |
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1572 // pseudo-code: |
1503 | 1573 // argslot = src_addr + swap_bytes |
1574 // destslot = dest_addr | |
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1575 // while (argslot <= destslot) *(argslot - swap_bytes) = *(argslot + 0), argslot++; |
3449
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1576 // dest_slot denotes an exclusive upper limit |
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1577 int limit_bias = OP_ROT_ARGS_DOWN_LIMIT_BIAS; |
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1578 if (limit_bias != 0) |
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1579 __ add(O1_destslot, - limit_bias * wordSize, O1_destslot); |
3442
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1580 move_arg_slots_down(_masm, |
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1581 Address(O0_argslot, swap_slots * wordSize), |
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1582 O1_destslot, |
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1583 -swap_slots, |
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1584 O0_argslot, O2_scratch); |
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|
1585 |
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1586 __ sub(O1_destslot, swap_slots * wordSize, O1_destslot); |
1503 | 1587 } |
3442
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1588 // pop the original first chunk into the destination slot, now free |
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|
1589 switch (swap_slots) { |
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1590 case 2 : __ st_ptr(O4_scratch, Address(O1_destslot, 1 * wordSize)); // fall-thru |
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1591 case 1 : __ st_ptr(O3_scratch, Address(O1_destslot, 0 * wordSize)); break; |
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1592 default: ShouldNotReachHere(); |
1503 | 1593 } |
1594 } | |
1595 | |
1846 | 1596 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1597 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1598 } | |
1599 break; | |
1600 | |
1601 case _adapter_dup_args: | |
1602 { | |
1603 // 'argslot' is the position of the first argument to duplicate. | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1604 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1605 __ add(__ argument_address(O0_argslot, O0_argslot), O0_argslot); |
1503 | 1606 |
1607 // 'stack_move' is negative number of words to duplicate. | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1608 Register O1_stack_move = O1_scratch; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1609 load_stack_move(_masm, G3_amh_conversion, O1_stack_move); |
1503 | 1610 |
3442
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|
1611 if (VerifyMethodHandles) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1612 verify_argslots(_masm, O1_stack_move, O0_argslot, O2_scratch, O3_scratch, true, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1613 "copied argument(s) must fall within current frame"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1614 } |
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|
1615 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1616 // insert location is always the bottom of the argument list: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1617 __ neg(O1_stack_move); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1618 push_arg_slots(_masm, O0_argslot, O1_stack_move, O2_scratch, O3_scratch); |
1503 | 1619 |
1846 | 1620 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1621 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1622 } | |
1623 break; | |
1624 | |
1625 case _adapter_drop_args: | |
1626 { | |
1627 // 'argslot' is the position of the first argument to nuke. | |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1628 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1629 __ add(__ argument_address(O0_argslot, O0_argslot), O0_argslot); |
1503 | 1630 |
1631 // 'stack_move' is number of words to drop. | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1632 Register O1_stack_move = O1_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1633 load_stack_move(_masm, G3_amh_conversion, O1_stack_move); |
1503 | 1634 |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1635 remove_arg_slots(_masm, O1_stack_move, O0_argslot, O2_scratch, O3_scratch, O4_scratch); |
1503 | 1636 |
1846 | 1637 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1638 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1639 } | |
1640 break; | |
1641 | |
1642 case _adapter_collect_args: | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1643 case _adapter_fold_args: |
1503 | 1644 case _adapter_spread_args: |
1645 // Handled completely by optimized cases. | |
1646 __ stop("init_AdapterMethodHandle should not issue this"); | |
1647 break; | |
1648 | |
3442
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|
1649 case _adapter_opt_collect_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1650 case _adapter_opt_collect_int: |
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|
1651 case _adapter_opt_collect_long: |
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|
1652 case _adapter_opt_collect_float: |
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|
1653 case _adapter_opt_collect_double: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1654 case _adapter_opt_collect_void: |
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|
1655 case _adapter_opt_collect_0_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1656 case _adapter_opt_collect_1_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1657 case _adapter_opt_collect_2_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1658 case _adapter_opt_collect_3_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1659 case _adapter_opt_collect_4_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1660 case _adapter_opt_collect_5_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1661 case _adapter_opt_filter_S0_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1662 case _adapter_opt_filter_S1_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1663 case _adapter_opt_filter_S2_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1664 case _adapter_opt_filter_S3_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1665 case _adapter_opt_filter_S4_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1666 case _adapter_opt_filter_S5_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1667 case _adapter_opt_collect_2_S0_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1668 case _adapter_opt_collect_2_S1_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1669 case _adapter_opt_collect_2_S2_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1670 case _adapter_opt_collect_2_S3_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1671 case _adapter_opt_collect_2_S4_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1672 case _adapter_opt_collect_2_S5_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1673 case _adapter_opt_fold_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1674 case _adapter_opt_fold_int: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1675 case _adapter_opt_fold_long: |
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diff
changeset
|
1676 case _adapter_opt_fold_float: |
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diff
changeset
|
1677 case _adapter_opt_fold_double: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1678 case _adapter_opt_fold_void: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1679 case _adapter_opt_fold_1_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1680 case _adapter_opt_fold_2_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1681 case _adapter_opt_fold_3_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1682 case _adapter_opt_fold_4_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1683 case _adapter_opt_fold_5_ref: |
1503 | 1684 { |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1685 // Given a fresh incoming stack frame, build a new ricochet frame. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1686 // On entry, TOS points at a return PC, and FP is the callers frame ptr. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1687 // RSI/R13 has the caller's exact stack pointer, which we must also preserve. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1688 // RCX contains an AdapterMethodHandle of the indicated kind. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1689 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1690 // Relevant AMH fields: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1691 // amh.vmargslot: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1692 // points to the trailing edge of the arguments |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1693 // to filter, collect, or fold. For a boxing operation, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1694 // it points just after the single primitive value. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1695 // amh.argument: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1696 // recursively called MH, on |collect| arguments |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1697 // amh.vmtarget: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1698 // final destination MH, on return value, etc. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1699 // amh.conversion.dest: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1700 // tells what is the type of the return value |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1701 // (not needed here, since dest is also derived from ek) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1702 // amh.conversion.vminfo: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1703 // points to the trailing edge of the return value |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1704 // when the vmtarget is to be called; this is |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1705 // equal to vmargslot + (retained ? |collect| : 0) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1706 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1707 // Pass 0 or more argument slots to the recursive target. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1708 int collect_count_constant = ek_adapter_opt_collect_count(ek); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1709 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1710 // The collected arguments are copied from the saved argument list: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1711 int collect_slot_constant = ek_adapter_opt_collect_slot(ek); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1712 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1713 assert(ek_orig == _adapter_collect_args || |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1714 ek_orig == _adapter_fold_args, ""); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1715 bool retain_original_args = (ek_orig == _adapter_fold_args); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1716 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1717 // The return value is replaced (or inserted) at the 'vminfo' argslot. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1718 // Sometimes we can compute this statically. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1719 int dest_slot_constant = -1; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1720 if (!retain_original_args) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1721 dest_slot_constant = collect_slot_constant; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1722 else if (collect_slot_constant >= 0 && collect_count_constant >= 0) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
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|
1723 // We are preserving all the arguments, and the return value is prepended, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1724 // so the return slot is to the left (above) the |collect| sequence. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1725 dest_slot_constant = collect_slot_constant + collect_count_constant; |
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diff
changeset
|
1726 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1727 // Replace all those slots by the result of the recursive call. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1728 // The result type can be one of ref, int, long, float, double, void. |
f7d55ea6ee56
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changeset
|
1729 // In the case of void, nothing is pushed on the stack after return. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1730 BasicType dest = ek_adapter_opt_collect_type(ek); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1731 assert(dest == type2wfield[dest], "dest is a stack slot type"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1732 int dest_count = type2size[dest]; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1733 assert(dest_count == 1 || dest_count == 2 || (dest_count == 0 && dest == T_VOID), "dest has a size"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1734 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
1735 // Choose a return continuation. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1736 EntryKind ek_ret = _adapter_opt_return_any; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1737 if (dest != T_CONFLICT && OptimizeMethodHandles) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1738 switch (dest) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
1739 case T_INT : ek_ret = _adapter_opt_return_int; break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1740 case T_LONG : ek_ret = _adapter_opt_return_long; break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
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diff
changeset
|
1741 case T_FLOAT : ek_ret = _adapter_opt_return_float; break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1742 case T_DOUBLE : ek_ret = _adapter_opt_return_double; break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
1743 case T_OBJECT : ek_ret = _adapter_opt_return_ref; break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
1744 case T_VOID : ek_ret = _adapter_opt_return_void; break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1745 default : ShouldNotReachHere(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1746 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1747 if (dest == T_OBJECT && dest_slot_constant >= 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1748 EntryKind ek_try = EntryKind(_adapter_opt_return_S0_ref + dest_slot_constant); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1749 if (ek_try <= _adapter_opt_return_LAST && |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1750 ek_adapter_opt_return_slot(ek_try) == dest_slot_constant) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1751 ek_ret = ek_try; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1752 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1753 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1754 assert(ek_adapter_opt_return_type(ek_ret) == dest, ""); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1755 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1756 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1757 // Already pushed: ... keep1 | collect | keep2 | |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1758 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1759 // Push a few extra argument words, if we need them to store the return value. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1760 { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1761 int extra_slots = 0; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1762 if (retain_original_args) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1763 extra_slots = dest_count; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1764 } else if (collect_count_constant == -1) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1765 extra_slots = dest_count; // collect_count might be zero; be generous |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1766 } else if (dest_count > collect_count_constant) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1767 extra_slots = (dest_count - collect_count_constant); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1768 } else { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1769 // else we know we have enough dead space in |collect| to repurpose for return values |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1770 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1771 if (extra_slots != 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1772 __ sub(SP, round_to(extra_slots, 2) * Interpreter::stackElementSize, SP); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1773 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1774 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1775 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1776 // Set up Ricochet Frame. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1777 __ mov(SP, O5_savedSP); // record SP for the callee |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1778 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1779 // One extra (empty) slot for outgoing target MH (see Gargs computation below). |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1780 __ save_frame(2); // Note: we need to add 2 slots since frame::memory_parameter_word_sp_offset is 23. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1781 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1782 // Note: Gargs is live throughout the following, until we make our recursive call. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1783 // And the RF saves a copy in L4_saved_args_base. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1784 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1785 RicochetFrame::enter_ricochet_frame(_masm, G3_method_handle, Gargs, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1786 entry(ek_ret)->from_interpreted_entry()); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1787 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1788 // Compute argument base: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1789 // Set up Gargs for current frame, extra (empty) slot is for outgoing target MH (space reserved by save_frame above). |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1790 __ add(FP, STACK_BIAS - (1 * Interpreter::stackElementSize), Gargs); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1791 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1792 // Now pushed: ... keep1 | collect | keep2 | extra | [RF] |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1793 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1794 #ifdef ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1795 if (VerifyMethodHandles && dest != T_CONFLICT) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1796 BLOCK_COMMENT("verify AMH.conv.dest {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1797 extract_conversion_dest_type(_masm, RicochetFrame::L5_conversion, O1_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1798 Label L_dest_ok; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1799 __ cmp(O1_scratch, (int) dest); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1800 __ br(Assembler::equal, false, Assembler::pt, L_dest_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1801 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1802 if (dest == T_INT) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1803 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1804 if (is_subword_type(BasicType(bt))) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1805 __ cmp(O1_scratch, (int) bt); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1806 __ br(Assembler::equal, false, Assembler::pt, L_dest_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1807 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1808 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1809 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1810 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1811 __ stop("bad dest in AMH.conv"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1812 __ BIND(L_dest_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1813 BLOCK_COMMENT("} verify AMH.conv.dest"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1814 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1815 #endif //ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1816 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1817 // Find out where the original copy of the recursive argument sequence begins. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1818 Register O0_coll = O0_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1819 { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1820 RegisterOrConstant collect_slot = collect_slot_constant; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1821 if (collect_slot_constant == -1) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1822 load_vmargslot(_masm, G3_amh_vmargslot, O1_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1823 collect_slot = O1_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1824 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1825 // collect_slot might be 0, but we need the move anyway. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1826 __ add(RicochetFrame::L4_saved_args_base, __ argument_offset(collect_slot, collect_slot.register_or_noreg()), O0_coll); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1827 // O0_coll now points at the trailing edge of |collect| and leading edge of |keep2| |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1828 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1829 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1830 // Replace the old AMH with the recursive MH. (No going back now.) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1831 // In the case of a boxing call, the recursive call is to a 'boxer' method, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1832 // such as Integer.valueOf or Long.valueOf. In the case of a filter |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1833 // or collect call, it will take one or more arguments, transform them, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1834 // and return some result, to store back into argument_base[vminfo]. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1835 __ load_heap_oop(G3_amh_argument, G3_method_handle); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1836 if (VerifyMethodHandles) verify_method_handle(_masm, G3_method_handle, O1_scratch, O2_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
1837 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
1838 // Calculate |collect|, the number of arguments we are collecting. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1839 Register O1_collect_count = O1_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1840 RegisterOrConstant collect_count; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1841 if (collect_count_constant < 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1842 __ load_method_handle_vmslots(O1_collect_count, G3_method_handle, O2_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1843 collect_count = O1_collect_count; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1844 } else { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1845 collect_count = collect_count_constant; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1846 #ifdef ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1847 if (VerifyMethodHandles) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1848 BLOCK_COMMENT("verify collect_count_constant {"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1849 __ load_method_handle_vmslots(O3_scratch, G3_method_handle, O2_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1850 Label L_count_ok; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1851 __ cmp(O3_scratch, collect_count_constant); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1852 __ br(Assembler::equal, false, Assembler::pt, L_count_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1853 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1854 __ stop("bad vminfo in AMH.conv"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1855 __ BIND(L_count_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1856 BLOCK_COMMENT("} verify collect_count_constant"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1857 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1858 #endif //ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1859 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1860 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1861 // copy |collect| slots directly to TOS: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1862 push_arg_slots(_masm, O0_coll, collect_count, O2_scratch, O3_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1863 // Now pushed: ... keep1 | collect | keep2 | RF... | collect | |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1864 // O0_coll still points at the trailing edge of |collect| and leading edge of |keep2| |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1865 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1866 // If necessary, adjust the saved arguments to make room for the eventual return value. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1867 // Normal adjustment: ... keep1 | +dest+ | -collect- | keep2 | RF... | collect | |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1868 // If retaining args: ... keep1 | +dest+ | collect | keep2 | RF... | collect | |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
1869 // In the non-retaining case, this might move keep2 either up or down. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
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1870 // We don't have to copy the whole | RF... collect | complex, |
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1871 // but we must adjust RF.saved_args_base. |
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1872 // Also, from now on, we will forget about the original copy of |collect|. |
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1873 // If we are retaining it, we will treat it as part of |keep2|. |
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1874 // For clarity we will define |keep3| = |collect|keep2| or |keep2|. |
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1875 |
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1876 BLOCK_COMMENT("adjust trailing arguments {"); |
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1877 // Compare the sizes of |+dest+| and |-collect-|, which are opposed opening and closing movements. |
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1878 int open_count = dest_count; |
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1879 RegisterOrConstant close_count = collect_count_constant; |
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1880 Register O1_close_count = O1_collect_count; |
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1881 if (retain_original_args) { |
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1882 close_count = constant(0); |
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1883 } else if (collect_count_constant == -1) { |
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1884 close_count = O1_collect_count; |
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1885 } |
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1886 |
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1887 // How many slots need moving? This is simply dest_slot (0 => no |keep3|). |
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1888 RegisterOrConstant keep3_count; |
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1889 Register O2_keep3_count = O2_scratch; |
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1890 if (dest_slot_constant < 0) { |
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1891 extract_conversion_vminfo(_masm, RicochetFrame::L5_conversion, O2_keep3_count); |
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1892 keep3_count = O2_keep3_count; |
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1893 } else { |
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1894 keep3_count = dest_slot_constant; |
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1895 #ifdef ASSERT |
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1896 if (VerifyMethodHandles && dest_slot_constant < 0) { |
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1897 BLOCK_COMMENT("verify dest_slot_constant {"); |
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1898 extract_conversion_vminfo(_masm, RicochetFrame::L5_conversion, O3_scratch); |
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1899 Label L_vminfo_ok; |
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1900 __ cmp(O3_scratch, dest_slot_constant); |
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1901 __ br(Assembler::equal, false, Assembler::pt, L_vminfo_ok); |
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1902 __ delayed()->nop(); |
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1903 __ stop("bad vminfo in AMH.conv"); |
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1904 __ BIND(L_vminfo_ok); |
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1905 BLOCK_COMMENT("} verify dest_slot_constant"); |
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1906 } |
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1907 #endif //ASSERT |
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1908 } |
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1909 |
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1910 // tasks remaining: |
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1911 bool move_keep3 = (!keep3_count.is_constant() || keep3_count.as_constant() != 0); |
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1912 bool stomp_dest = (NOT_DEBUG(dest == T_OBJECT) DEBUG_ONLY(dest_count != 0)); |
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1913 bool fix_arg_base = (!close_count.is_constant() || open_count != close_count.as_constant()); |
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1914 |
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1915 // Old and new argument locations (based at slot 0). |
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1916 // Net shift (&new_argv - &old_argv) is (close_count - open_count). |
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1917 bool zero_open_count = (open_count == 0); // remember this bit of info |
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1918 if (move_keep3 && fix_arg_base) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1919 // It will be easier to have everything in one register: |
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1920 if (close_count.is_register()) { |
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1921 // Deduct open_count from close_count register to get a clean +/- value. |
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1922 __ sub(close_count.as_register(), open_count, close_count.as_register()); |
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1923 } else { |
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1924 close_count = close_count.as_constant() - open_count; |
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1925 } |
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1926 open_count = 0; |
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1927 } |
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1928 Register L4_old_argv = RicochetFrame::L4_saved_args_base; |
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1929 Register O3_new_argv = O3_scratch; |
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1930 if (fix_arg_base) { |
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1931 __ add(L4_old_argv, __ argument_offset(close_count, O4_scratch), O3_new_argv, |
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1932 -(open_count * Interpreter::stackElementSize)); |
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1933 } |
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1934 |
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1935 // First decide if any actual data are to be moved. |
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1936 // We can skip if (a) |keep3| is empty, or (b) the argument list size didn't change. |
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1937 // (As it happens, all movements involve an argument list size change.) |
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1938 |
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1939 // If there are variable parameters, use dynamic checks to skip around the whole mess. |
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1940 Label L_done; |
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1941 if (keep3_count.is_register()) { |
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1942 __ tst(keep3_count.as_register()); |
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1943 __ br(Assembler::zero, false, Assembler::pn, L_done); |
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|
1944 __ delayed()->nop(); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1945 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1946 if (close_count.is_register()) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1947 __ cmp(close_count.as_register(), open_count); |
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1948 __ br(Assembler::equal, false, Assembler::pn, L_done); |
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|
1949 __ delayed()->nop(); |
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1950 } |
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1951 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1952 if (move_keep3 && fix_arg_base) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1953 bool emit_move_down = false, emit_move_up = false, emit_guard = false; |
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|
1954 if (!close_count.is_constant()) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1955 emit_move_down = emit_guard = !zero_open_count; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1956 emit_move_up = true; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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1957 } else if (open_count != close_count.as_constant()) { |
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1958 emit_move_down = (open_count > close_count.as_constant()); |
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|
1959 emit_move_up = !emit_move_down; |
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|
1960 } |
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|
1961 Label L_move_up; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1962 if (emit_guard) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1963 __ cmp(close_count.as_register(), open_count); |
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|
1964 __ br(Assembler::greater, false, Assembler::pn, L_move_up); |
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diff
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|
1965 __ delayed()->nop(); |
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diff
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|
1966 } |
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|
1967 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1968 if (emit_move_down) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1969 // Move arguments down if |+dest+| > |-collect-| |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1970 // (This is rare, except when arguments are retained.) |
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diff
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|
1971 // This opens space for the return value. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1972 if (keep3_count.is_constant()) { |
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|
1973 for (int i = 0; i < keep3_count.as_constant(); i++) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1974 __ ld_ptr( Address(L4_old_argv, i * Interpreter::stackElementSize), O4_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1975 __ st_ptr(O4_scratch, Address(O3_new_argv, i * Interpreter::stackElementSize) ); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1976 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
1977 } else { |
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diff
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|
1978 // Live: O1_close_count, O2_keep3_count, O3_new_argv |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1979 Register argv_top = O0_scratch; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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3371
diff
changeset
|
1980 __ add(L4_old_argv, __ argument_offset(keep3_count, O4_scratch), argv_top); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1981 move_arg_slots_down(_masm, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1982 Address(L4_old_argv, 0), // beginning of old argv |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1983 argv_top, // end of old argv |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1984 close_count, // distance to move down (must be negative) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1985 O4_scratch, G5_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1986 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1987 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1988 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1989 if (emit_guard) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1990 __ ba(false, L_done); // assumes emit_move_up is true also |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1991 __ delayed()->nop(); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1992 __ BIND(L_move_up); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
1993 } |
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diff
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|
1994 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
1995 if (emit_move_up) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
1996 // Move arguments up if |+dest+| < |-collect-| |
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|
1997 // (This is usual, except when |keep3| is empty.) |
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changeset
|
1998 // This closes up the space occupied by the now-deleted collect values. |
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changeset
|
1999 if (keep3_count.is_constant()) { |
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changeset
|
2000 for (int i = keep3_count.as_constant() - 1; i >= 0; i--) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2001 __ ld_ptr( Address(L4_old_argv, i * Interpreter::stackElementSize), O4_scratch); |
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|
2002 __ st_ptr(O4_scratch, Address(O3_new_argv, i * Interpreter::stackElementSize) ); |
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changeset
|
2003 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2004 } else { |
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changeset
|
2005 Address argv_top(L4_old_argv, __ argument_offset(keep3_count, O4_scratch)); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2006 // Live: O1_close_count, O2_keep3_count, O3_new_argv |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2007 move_arg_slots_up(_masm, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2008 L4_old_argv, // beginning of old argv |
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changeset
|
2009 argv_top, // end of old argv |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2010 close_count, // distance to move up (must be positive) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2011 O4_scratch, G5_scratch); |
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changeset
|
2012 } |
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changeset
|
2013 } |
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|
2014 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2015 __ BIND(L_done); |
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|
2016 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2017 if (fix_arg_base) { |
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parents:
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diff
changeset
|
2018 // adjust RF.saved_args_base |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2019 __ mov(O3_new_argv, RicochetFrame::L4_saved_args_base); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2020 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2021 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2022 if (stomp_dest) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2023 // Stomp the return slot, so it doesn't hold garbage. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2024 // This isn't strictly necessary, but it may help detect bugs. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2025 __ set(RicochetFrame::RETURN_VALUE_PLACEHOLDER, O4_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2026 __ st_ptr(O4_scratch, Address(RicochetFrame::L4_saved_args_base, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2027 __ argument_offset(keep3_count, keep3_count.register_or_noreg()))); // uses O2_keep3_count |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2028 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2029 BLOCK_COMMENT("} adjust trailing arguments"); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2030 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2031 BLOCK_COMMENT("do_recursive_call"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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2032 __ mov(SP, O5_savedSP); // record SP for the callee |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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2033 __ set(ExternalAddress(SharedRuntime::ricochet_blob()->bounce_addr() - frame::pc_return_offset), O7); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2034 // The globally unique bounce address has two purposes: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2035 // 1. It helps the JVM recognize this frame (frame::is_ricochet_frame). |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2036 // 2. When returned to, it cuts back the stack and redirects control flow |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2037 // to the return handler. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2038 // The return handler will further cut back the stack when it takes |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2039 // down the RF. Perhaps there is a way to streamline this further. |
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diff
changeset
|
2040 |
f7d55ea6ee56
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changeset
|
2041 // State during recursive call: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2042 // ... keep1 | dest | dest=42 | keep3 | RF... | collect | bounce_pc | |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
2043 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1503 | 2044 } |
2045 break; | |
2046 | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2047 case _adapter_opt_return_ref: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2048 case _adapter_opt_return_int: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
2049 case _adapter_opt_return_long: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2050 case _adapter_opt_return_float: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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changeset
|
2051 case _adapter_opt_return_double: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2052 case _adapter_opt_return_void: |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2053 case _adapter_opt_return_S0_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2054 case _adapter_opt_return_S1_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
2055 case _adapter_opt_return_S2_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
2056 case _adapter_opt_return_S3_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2057 case _adapter_opt_return_S4_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2058 case _adapter_opt_return_S5_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
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|
2059 { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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|
2060 BasicType dest_type_constant = ek_adapter_opt_return_type(ek); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2061 int dest_slot_constant = ek_adapter_opt_return_slot(ek); |
f7d55ea6ee56
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diff
changeset
|
2062 |
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diff
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|
2063 if (VerifyMethodHandles) RicochetFrame::verify_clean(_masm); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2064 |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2065 if (dest_slot_constant == -1) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2066 // The current stub is a general handler for this dest_type. |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2067 // It can be called from _adapter_opt_return_any below. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2068 // Stash the address in a little table. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2069 assert((dest_type_constant & CONV_TYPE_MASK) == dest_type_constant, "oob"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2070 address return_handler = __ pc(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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changeset
|
2071 _adapter_return_handlers[dest_type_constant] = return_handler; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2072 if (dest_type_constant == T_INT) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2073 // do the subword types too |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2074 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2075 if (is_subword_type(BasicType(bt)) && |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2076 _adapter_return_handlers[bt] == NULL) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2077 _adapter_return_handlers[bt] = return_handler; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2078 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2079 } |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2080 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
2081 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2082 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
2083 // On entry to this continuation handler, make Gargs live again. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
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diff
changeset
|
2084 __ mov(RicochetFrame::L4_saved_args_base, Gargs); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2085 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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diff
changeset
|
2086 Register O7_temp = O7; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
2087 Register O5_vminfo = O5; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
2088 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2089 RegisterOrConstant dest_slot = dest_slot_constant; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2090 if (dest_slot_constant == -1) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2091 extract_conversion_vminfo(_masm, RicochetFrame::L5_conversion, O5_vminfo); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2092 dest_slot = O5_vminfo; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2093 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2094 // Store the result back into the argslot. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2095 // This code uses the interpreter calling sequence, in which the return value |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2096 // is usually left in the TOS register, as defined by InterpreterMacroAssembler::pop. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2097 // There are certain irregularities with floating point values, which can be seen |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2098 // in TemplateInterpreterGenerator::generate_return_entry_for. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2099 move_return_value(_masm, dest_type_constant, __ argument_address(dest_slot, O7_temp)); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
2100 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
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diff
changeset
|
2101 RicochetFrame::leave_ricochet_frame(_masm, G3_method_handle, I5_savedSP, I7); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2102 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
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parents:
3371
diff
changeset
|
2103 // Load the final target and go. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2104 if (VerifyMethodHandles) verify_method_handle(_masm, G3_method_handle, O0_scratch, O1_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2105 __ restore(I5_savedSP, G0, SP); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2106 __ jump_to_method_handle_entry(G3_method_handle, O0_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2107 __ illtrap(0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2108 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2109 break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2110 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2111 case _adapter_opt_return_any: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2112 { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2113 Register O7_temp = O7; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2114 Register O5_dest_type = O5; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2115 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2116 if (VerifyMethodHandles) RicochetFrame::verify_clean(_masm); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2117 extract_conversion_dest_type(_masm, RicochetFrame::L5_conversion, O5_dest_type); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2118 __ set(ExternalAddress((address) &_adapter_return_handlers[0]), O7_temp); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2119 __ sll_ptr(O5_dest_type, LogBytesPerWord, O5_dest_type); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2120 __ ld_ptr(O7_temp, O5_dest_type, O7_temp); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2121 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2122 #ifdef ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2123 { Label L_ok; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2124 __ br_notnull(O7_temp, false, Assembler::pt, L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2125 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2126 __ stop("bad method handle return"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2127 __ BIND(L_ok); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2128 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2129 #endif //ASSERT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2130 __ JMP(O7_temp, 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2131 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2132 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2133 break; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2134 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2135 case _adapter_opt_spread_0: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2136 case _adapter_opt_spread_1_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2137 case _adapter_opt_spread_2_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2138 case _adapter_opt_spread_3_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2139 case _adapter_opt_spread_4_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2140 case _adapter_opt_spread_5_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2141 case _adapter_opt_spread_ref: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2142 case _adapter_opt_spread_byte: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2143 case _adapter_opt_spread_char: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2144 case _adapter_opt_spread_short: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2145 case _adapter_opt_spread_int: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2146 case _adapter_opt_spread_long: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2147 case _adapter_opt_spread_float: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2148 case _adapter_opt_spread_double: |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2149 { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2150 // spread an array out into a group of arguments |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2151 int length_constant = ek_adapter_opt_spread_count(ek); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2152 bool length_can_be_zero = (length_constant == 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2153 if (length_constant < 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2154 // some adapters with variable length must handle the zero case |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2155 if (!OptimizeMethodHandles || |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2156 ek_adapter_opt_spread_type(ek) != T_OBJECT) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2157 length_can_be_zero = true; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2158 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2159 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2160 // find the address of the array argument |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2161 load_vmargslot(_masm, G3_amh_vmargslot, O0_argslot); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2162 __ add(__ argument_address(O0_argslot, O0_argslot), O0_argslot); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2163 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2164 // O0_argslot points both to the array and to the first output arg |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2165 Address vmarg = Address(O0_argslot, 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2166 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2167 // Get the array value. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2168 Register O1_array = O1_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2169 Register O2_array_klass = O2_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2170 BasicType elem_type = ek_adapter_opt_spread_type(ek); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2171 int elem_slots = type2size[elem_type]; // 1 or 2 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2172 int array_slots = 1; // array is always a T_OBJECT |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2173 int length_offset = arrayOopDesc::length_offset_in_bytes(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2174 int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2175 __ ld_ptr(vmarg, O1_array); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2176 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2177 Label L_array_is_empty, L_insert_arg_space, L_copy_args, L_args_done; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2178 if (length_can_be_zero) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2179 // handle the null pointer case, if zero is allowed |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2180 Label L_skip; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2181 if (length_constant < 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2182 load_conversion_vminfo(_masm, G3_amh_conversion, O3_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2183 __ br_zero(Assembler::notZero, false, Assembler::pn, O3_scratch, L_skip); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2184 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2185 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2186 __ br_null(O1_array, false, Assembler::pn, L_array_is_empty); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2187 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2188 __ BIND(L_skip); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2189 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2190 __ null_check(O1_array, oopDesc::klass_offset_in_bytes()); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2191 __ load_klass(O1_array, O2_array_klass); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2192 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2193 // Check the array type. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2194 Register O3_klass = O3_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2195 __ load_heap_oop(G3_amh_argument, O3_klass); // this is a Class object! |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2196 load_klass_from_Class(_masm, O3_klass, O4_scratch, G5_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2197 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2198 Label L_ok_array_klass, L_bad_array_klass, L_bad_array_length; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2199 __ check_klass_subtype(O2_array_klass, O3_klass, O4_scratch, G5_scratch, L_ok_array_klass); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2200 // If we get here, the type check failed! |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2201 __ ba(false, L_bad_array_klass); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2202 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2203 __ BIND(L_ok_array_klass); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2204 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2205 // Check length. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2206 if (length_constant >= 0) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2207 __ ldsw(Address(O1_array, length_offset), O4_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2208 __ cmp(O4_scratch, length_constant); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2209 } else { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2210 Register O3_vminfo = O3_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2211 load_conversion_vminfo(_masm, G3_amh_conversion, O3_vminfo); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2212 __ ldsw(Address(O1_array, length_offset), O4_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2213 __ cmp(O3_vminfo, O4_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2214 } |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2215 __ br(Assembler::notEqual, false, Assembler::pn, L_bad_array_length); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2216 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2217 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2218 Register O2_argslot_limit = O2_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2219 |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2220 // Array length checks out. Now insert any required stack slots. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2221 if (length_constant == -1) { |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2222 // Form a pointer to the end of the affected region. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2223 __ add(O0_argslot, Interpreter::stackElementSize, O2_argslot_limit); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2224 // 'stack_move' is negative number of words to insert |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2225 // This number already accounts for elem_slots. |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2226 Register O3_stack_move = O3_scratch; |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2227 load_stack_move(_masm, G3_amh_conversion, O3_stack_move); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2228 __ cmp(O3_stack_move, 0); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2229 assert(stack_move_unit() < 0, "else change this comparison"); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2230 __ br(Assembler::less, false, Assembler::pn, L_insert_arg_space); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2231 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2232 __ br(Assembler::equal, false, Assembler::pn, L_copy_args); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2233 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2234 // single argument case, with no array movement |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2235 __ BIND(L_array_is_empty); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2236 remove_arg_slots(_masm, -stack_move_unit() * array_slots, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2237 O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2238 __ ba(false, L_args_done); // no spreading to do |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2239 __ delayed()->nop(); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2240 __ BIND(L_insert_arg_space); |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2241 // come here in the usual case, stack_move < 0 (2 or more spread arguments) |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2242 // Live: O1_array, O2_argslot_limit, O3_stack_move |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2243 insert_arg_slots(_masm, O3_stack_move, |
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3371
diff
changeset
|
2244 O0_argslot, O4_scratch, G5_scratch, O1_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2245 // reload from rdx_argslot_limit since rax_argslot is now decremented |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2246 __ ld_ptr(Address(O2_argslot_limit, -Interpreter::stackElementSize), O1_array); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2247 } else if (length_constant >= 1) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2248 int new_slots = (length_constant * elem_slots) - array_slots; |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2249 insert_arg_slots(_masm, new_slots * stack_move_unit(), |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2250 O0_argslot, O2_scratch, O3_scratch, O4_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2251 } else if (length_constant == 0) { |
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2252 __ BIND(L_array_is_empty); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2253 remove_arg_slots(_masm, -stack_move_unit() * array_slots, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2254 O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2255 } else { |
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2256 ShouldNotReachHere(); |
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2257 } |
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2258 |
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2259 // Copy from the array to the new slots. |
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2260 // Note: Stack change code preserves integrity of O0_argslot pointer. |
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2261 // So even after slot insertions, O0_argslot still points to first argument. |
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2262 // Beware: Arguments that are shallow on the stack are deep in the array, |
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2263 // and vice versa. So a downward-growing stack (the usual) has to be copied |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2264 // elementwise in reverse order from the source array. |
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2265 __ BIND(L_copy_args); |
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2266 if (length_constant == -1) { |
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2267 // [O0_argslot, O2_argslot_limit) is the area we are inserting into. |
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2268 // Array element [0] goes at O0_argslot_limit[-wordSize]. |
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2269 Register O1_source = O1_array; |
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2270 __ add(Address(O1_array, elem0_offset), O1_source); |
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2271 Register O4_fill_ptr = O4_scratch; |
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2272 __ mov(O2_argslot_limit, O4_fill_ptr); |
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2273 Label L_loop; |
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2274 __ BIND(L_loop); |
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2275 __ add(O4_fill_ptr, -Interpreter::stackElementSize * elem_slots, O4_fill_ptr); |
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2276 move_typed_arg(_masm, elem_type, true, |
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2277 Address(O1_source, 0), Address(O4_fill_ptr, 0), |
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2278 O2_scratch); // must be an even register for !_LP64 long moves (uses O2/O3) |
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2279 __ add(O1_source, type2aelembytes(elem_type), O1_source); |
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2280 __ cmp(O4_fill_ptr, O0_argslot); |
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2281 __ brx(Assembler::greaterUnsigned, false, Assembler::pt, L_loop); |
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2282 __ delayed()->nop(); // FILLME |
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2283 } else if (length_constant == 0) { |
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2284 // nothing to copy |
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2285 } else { |
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2286 int elem_offset = elem0_offset; |
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2287 int slot_offset = length_constant * Interpreter::stackElementSize; |
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2288 for (int index = 0; index < length_constant; index++) { |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2289 slot_offset -= Interpreter::stackElementSize * elem_slots; // fill backward |
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2290 move_typed_arg(_masm, elem_type, true, |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2291 Address(O1_array, elem_offset), Address(O0_argslot, slot_offset), |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2292 O2_scratch); // must be an even register for !_LP64 long moves (uses O2/O3) |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2293 elem_offset += type2aelembytes(elem_type); |
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2294 } |
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2295 } |
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2296 __ BIND(L_args_done); |
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2297 |
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2298 // Arguments are spread. Move to next method handle. |
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2299 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2300 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
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2301 |
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2302 __ BIND(L_bad_array_klass); |
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2303 assert(!vmarg.uses(O2_required), "must be different registers"); |
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2304 __ load_heap_oop(Address(O2_array_klass, java_mirror_offset), O2_required); // required class |
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2305 __ ld_ptr( vmarg, O1_actual); // bad object |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2306 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2307 __ delayed()->mov(Bytecodes::_aaload, O0_code); // who is complaining? |
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2308 |
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2309 __ bind(L_bad_array_length); |
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2310 assert(!vmarg.uses(O2_required), "must be different registers"); |
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2311 __ mov( G3_method_handle, O2_required); // required class |
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2312 __ ld_ptr(vmarg, O1_actual); // bad object |
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2313 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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2314 __ delayed()->mov(Bytecodes::_arraylength, O0_code); // who is complaining? |
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2315 } |
1503 | 2316 break; |
2317 | |
2318 default: | |
3442
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7045514: SPARC assembly code for JSR 292 ricochet frames
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2319 DEBUG_ONLY(tty->print_cr("bad ek=%d (%s)", (int)ek, entry_name(ek))); |
1503 | 2320 ShouldNotReachHere(); |
2321 } | |
3442
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2322 BLOCK_COMMENT(err_msg("} Entry %s", entry_name(ek))); |
1503 | 2323 |
2324 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
2325 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
2326 | |
2327 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
710 | 2328 } |