Mercurial > hg > truffle
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 1916:e62345fd6a46
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Reviewed-by: kvn, jrose, never
| author | twisti |
|---|---|
| date | Thu, 04 Nov 2010 12:16:58 -0700 |
| parents | fff777a71346 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 710 | 1 /* |
|
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2 * Copyright (c) 2008, 2010, 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 * | |
|
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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 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_methodHandles_sparc.cpp.incl" | |
| 27 | |
| 28 #define __ _masm-> | |
| 29 | |
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30 #ifdef PRODUCT |
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31 #define BLOCK_COMMENT(str) /* nothing */ |
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32 #else |
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33 #define BLOCK_COMMENT(str) __ block_comment(str) |
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34 #endif |
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35 |
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36 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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37 |
| 710 | 38 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
| 39 address interpreted_entry) { | |
| 1503 | 40 // Just before the actual machine code entry point, allocate space |
| 41 // for a MethodHandleEntry::Data record, so that we can manage everything | |
| 42 // from one base pointer. | |
| 710 | 43 __ align(wordSize); |
| 44 address target = __ pc() + sizeof(Data); | |
| 45 while (__ pc() < target) { | |
| 46 __ nop(); | |
| 47 __ align(wordSize); | |
| 48 } | |
| 49 | |
| 50 MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); | |
| 51 me->set_end_address(__ pc()); // set a temporary end_address | |
| 52 me->set_from_interpreted_entry(interpreted_entry); | |
| 53 me->set_type_checking_entry(NULL); | |
| 54 | |
| 55 return (address) me; | |
| 56 } | |
| 57 | |
| 58 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, | |
| 59 address start_addr) { | |
| 60 MethodHandleEntry* me = (MethodHandleEntry*) start_addr; | |
| 61 assert(me->end_address() == start_addr, "valid ME"); | |
| 62 | |
| 63 // Fill in the real end_address: | |
| 64 __ align(wordSize); | |
| 65 me->set_end_address(__ pc()); | |
| 66 | |
| 67 return me; | |
| 68 } | |
| 69 | |
| 70 | |
| 71 // Code generation | |
| 72 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | |
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73 // I5_savedSP/O5_savedSP: sender SP (must preserve) |
| 1503 | 74 // G4 (Gargs): incoming argument list (must preserve) |
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75 // G5_method: invoke methodOop |
| 1503 | 76 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
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77 // O0, O1, O2, O3, O4: garbage temps, blown away |
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78 Register O0_mtype = O0; |
| 1503 | 79 Register O1_scratch = O1; |
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80 Register O2_scratch = O2; |
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81 Register O3_scratch = O3; |
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82 Register O4_argslot = O4; |
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83 Register O4_argbase = O4; |
| 1503 | 84 |
| 85 // emit WrongMethodType path first, to enable back-branch from main path | |
| 86 Label wrong_method_type; | |
| 87 __ bind(wrong_method_type); | |
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88 Label invoke_generic_slow_path; |
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89 assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");; |
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90 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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91 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeExact); |
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92 __ brx(Assembler::notEqual, false, Assembler::pt, invoke_generic_slow_path); |
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93 __ delayed()->nop(); |
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94 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType |
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95 // mov(G3_method_handle, G3_method_handle); // already in this register |
| 1503 | 96 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); |
| 97 __ delayed()->nop(); | |
| 98 | |
| 99 // here's where control starts out: | |
| 100 __ align(CodeEntryAlignment); | |
| 101 address entry_point = __ pc(); | |
| 102 | |
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103 // fetch the MethodType from the method handle |
| 1503 | 104 { |
| 105 Register tem = G5_method; | |
| 106 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { | |
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107 __ ld_ptr(Address(tem, *pchase), O0_mtype); |
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108 tem = O0_mtype; // in case there is another indirection |
| 1503 | 109 } |
| 110 } | |
| 111 | |
| 112 // given the MethodType, find out where the MH argument is buried | |
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113 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O4_argslot); |
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114 __ ldsw( Address(O4_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O4_argslot); |
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115 __ add(Gargs, __ argument_offset(O4_argslot, 1), O4_argbase); |
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116 // Note: argument_address uses its input as a scratch register! |
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117 __ ld_ptr(Address(O4_argbase, -Interpreter::stackElementSize), G3_method_handle); |
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118 |
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119 trace_method_handle(_masm, "invokeExact"); |
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120 |
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121 __ check_method_handle_type(O0_mtype, G3_method_handle, O1_scratch, wrong_method_type); |
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122 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
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123 |
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124 // for invokeGeneric (only), apply argument and result conversions on the fly |
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125 __ bind(invoke_generic_slow_path); |
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126 #ifdef ASSERT |
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127 { Label L; |
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128 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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129 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeGeneric); |
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130 __ brx(Assembler::equal, false, Assembler::pt, L); |
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131 __ delayed()->nop(); |
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132 __ stop("bad methodOop::intrinsic_id"); |
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133 __ bind(L); |
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134 } |
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135 #endif //ASSERT |
| 1503 | 136 |
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137 // make room on the stack for another pointer: |
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138 insert_arg_slots(_masm, 2 * stack_move_unit(), _INSERT_REF_MASK, O4_argbase, O1_scratch, O2_scratch, O3_scratch); |
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139 // load up an adapter from the calling type (Java weaves this) |
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140 Register O2_form = O2_scratch; |
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141 Register O3_adapter = O3_scratch; |
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142 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O2_form); |
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143 // load_heap_oop(Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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144 // deal with old JDK versions: |
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145 __ add( Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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146 __ cmp(O3_adapter, O2_form); |
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147 Label sorry_no_invoke_generic; |
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148 __ brx(Assembler::lessUnsigned, false, Assembler::pn, sorry_no_invoke_generic); |
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149 __ delayed()->nop(); |
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150 |
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151 __ load_heap_oop(Address(O3_adapter, 0), O3_adapter); |
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152 __ tst(O3_adapter); |
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153 __ brx(Assembler::zero, false, Assembler::pn, sorry_no_invoke_generic); |
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154 __ delayed()->nop(); |
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155 __ st_ptr(O3_adapter, Address(O4_argbase, 1 * Interpreter::stackElementSize)); |
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156 // As a trusted first argument, pass the type being called, so the adapter knows |
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157 // the actual types of the arguments and return values. |
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158 // (Generic invokers are shared among form-families of method-type.) |
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159 __ st_ptr(O0_mtype, Address(O4_argbase, 0 * Interpreter::stackElementSize)); |
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160 // FIXME: assert that O3_adapter is of the right method-type. |
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161 __ mov(O3_adapter, G3_method_handle); |
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162 trace_method_handle(_masm, "invokeGeneric"); |
| 1503 | 163 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 164 | |
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165 __ bind(sorry_no_invoke_generic); // no invokeGeneric implementation available! |
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166 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType |
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167 // mov(G3_method_handle, G3_method_handle); // already in this register |
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168 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); |
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169 __ delayed()->nop(); |
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170 |
| 1503 | 171 return entry_point; |
| 710 | 172 } |
| 173 | |
| 1503 | 174 |
| 175 #ifdef ASSERT | |
| 176 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { | |
| 177 // Verify that argslot lies within (Gargs, FP]. | |
| 178 Label L_ok, L_bad; | |
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179 BLOCK_COMMENT("{ verify_argslot"); |
| 1503 | 180 #ifdef _LP64 |
| 181 __ add(FP, STACK_BIAS, temp_reg); | |
| 182 __ cmp(argslot_reg, temp_reg); | |
| 183 #else | |
| 184 __ cmp(argslot_reg, FP); | |
| 185 #endif | |
| 186 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); | |
| 187 __ delayed()->nop(); | |
| 188 __ cmp(Gargs, argslot_reg); | |
| 189 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
| 190 __ delayed()->nop(); | |
| 191 __ bind(L_bad); | |
| 192 __ stop(error_message); | |
| 193 __ bind(L_ok); | |
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194 BLOCK_COMMENT("} verify_argslot"); |
| 1503 | 195 } |
| 196 #endif | |
| 197 | |
| 198 | |
| 199 // Helper to insert argument slots into the stack. | |
| 200 // arg_slots must be a multiple of stack_move_unit() and <= 0 | |
| 201 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, | |
| 202 RegisterOrConstant arg_slots, | |
| 203 int arg_mask, | |
| 204 Register argslot_reg, | |
| 205 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
| 206 assert(temp3_reg != noreg, "temp3 required"); | |
| 207 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
| 208 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
| 209 | |
| 210 #ifdef ASSERT | |
| 211 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); | |
| 212 if (arg_slots.is_register()) { | |
| 213 Label L_ok, L_bad; | |
| 214 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
| 215 __ br(Assembler::greater, false, Assembler::pn, L_bad); | |
| 216 __ delayed()->nop(); | |
| 217 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
| 218 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
| 219 __ delayed()->nop(); | |
| 220 __ bind(L_bad); | |
| 221 __ stop("assert arg_slots <= 0 and clear low bits"); | |
| 222 __ bind(L_ok); | |
| 223 } else { | |
| 224 assert(arg_slots.as_constant() <= 0, ""); | |
| 225 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
| 226 } | |
| 227 #endif // ASSERT | |
| 228 | |
| 229 #ifdef _LP64 | |
| 230 if (arg_slots.is_register()) { | |
| 231 // Was arg_slots register loaded as signed int? | |
| 232 Label L_ok; | |
| 233 __ sll(arg_slots.as_register(), BitsPerInt, temp_reg); | |
| 234 __ sra(temp_reg, BitsPerInt, temp_reg); | |
| 235 __ cmp(arg_slots.as_register(), temp_reg); | |
| 236 __ br(Assembler::equal, false, Assembler::pt, L_ok); | |
| 237 __ delayed()->nop(); | |
| 238 __ stop("arg_slots register not loaded as signed int"); | |
| 239 __ bind(L_ok); | |
| 240 } | |
| 241 #endif | |
| 242 | |
| 243 // Make space on the stack for the inserted argument(s). | |
| 244 // Then pull down everything shallower than argslot_reg. | |
| 245 // The stacked return address gets pulled down with everything else. | |
| 246 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
| 247 // sp -= size; | |
| 248 // for (temp = sp + size; temp < argslot; temp++) | |
| 249 // temp[-size] = temp[0] | |
| 250 // argslot -= size; | |
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251 BLOCK_COMMENT("insert_arg_slots {"); |
| 1503 | 252 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); |
| 253 | |
| 254 // Keep the stack pointer 2*wordSize aligned. | |
| 255 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
| 256 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
| 257 __ add(SP, masked_offset, SP); | |
| 258 | |
| 259 __ mov(Gargs, temp_reg); // source pointer for copy | |
| 260 __ add(Gargs, offset, Gargs); | |
| 261 | |
| 262 { | |
| 263 Label loop; | |
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264 __ BIND(loop); |
| 1503 | 265 // pull one word down each time through the loop |
| 266 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
| 267 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
| 268 __ add(temp_reg, wordSize, temp_reg); | |
| 269 __ cmp(temp_reg, argslot_reg); | |
| 270 __ brx(Assembler::less, false, Assembler::pt, loop); | |
| 271 __ delayed()->nop(); // FILLME | |
| 272 } | |
| 273 | |
| 274 // Now move the argslot down, to point to the opened-up space. | |
| 275 __ add(argslot_reg, offset, argslot_reg); | |
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276 BLOCK_COMMENT("} insert_arg_slots"); |
| 1503 | 277 } |
| 278 | |
| 279 | |
| 280 // Helper to remove argument slots from the stack. | |
| 281 // arg_slots must be a multiple of stack_move_unit() and >= 0 | |
| 282 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, | |
| 283 RegisterOrConstant arg_slots, | |
| 284 Register argslot_reg, | |
| 285 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
| 286 assert(temp3_reg != noreg, "temp3 required"); | |
| 287 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
| 288 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
| 289 | |
| 290 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
| 291 | |
| 292 #ifdef ASSERT | |
| 293 // Verify that [argslot..argslot+size) lies within (Gargs, FP). | |
| 294 __ add(argslot_reg, offset, temp2_reg); | |
| 295 verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame"); | |
| 296 if (arg_slots.is_register()) { | |
| 297 Label L_ok, L_bad; | |
| 298 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
| 299 __ br(Assembler::less, false, Assembler::pn, L_bad); | |
| 300 __ delayed()->nop(); | |
| 301 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
| 302 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
| 303 __ delayed()->nop(); | |
| 304 __ bind(L_bad); | |
| 305 __ stop("assert arg_slots >= 0 and clear low bits"); | |
| 306 __ bind(L_ok); | |
| 307 } else { | |
| 308 assert(arg_slots.as_constant() >= 0, ""); | |
| 309 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
| 310 } | |
| 311 #endif // ASSERT | |
| 312 | |
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313 BLOCK_COMMENT("remove_arg_slots {"); |
| 1503 | 314 // Pull up everything shallower than argslot. |
| 315 // Then remove the excess space on the stack. | |
| 316 // The stacked return address gets pulled up with everything else. | |
| 317 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
| 318 // for (temp = argslot-1; temp >= sp; --temp) | |
| 319 // temp[size] = temp[0] | |
| 320 // argslot += size; | |
| 321 // sp += size; | |
| 322 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy | |
| 323 { | |
| 324 Label loop; | |
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325 __ BIND(loop); |
| 1503 | 326 // pull one word up each time through the loop |
| 327 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
| 328 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
| 329 __ sub(temp_reg, wordSize, temp_reg); | |
| 330 __ cmp(temp_reg, Gargs); | |
| 331 __ brx(Assembler::greaterEqual, false, Assembler::pt, loop); | |
| 332 __ delayed()->nop(); // FILLME | |
| 333 } | |
| 334 | |
| 335 // Now move the argslot up, to point to the just-copied block. | |
| 336 __ add(Gargs, offset, Gargs); | |
| 337 // And adjust the argslot address to point at the deletion point. | |
| 338 __ add(argslot_reg, offset, argslot_reg); | |
| 339 | |
| 340 // Keep the stack pointer 2*wordSize aligned. | |
| 341 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
| 342 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
| 343 __ add(SP, masked_offset, SP); | |
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344 BLOCK_COMMENT("} remove_arg_slots"); |
| 1503 | 345 } |
| 346 | |
| 347 | |
| 348 #ifndef PRODUCT | |
| 349 extern "C" void print_method_handle(oop mh); | |
| 350 void trace_method_handle_stub(const char* adaptername, | |
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351 oopDesc* mh) { |
| 1503 | 352 printf("MH %s mh="INTPTR_FORMAT"\n", adaptername, (intptr_t) mh); |
| 353 print_method_handle(mh); | |
| 354 } | |
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355 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
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356 if (!TraceMethodHandles) return; |
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357 BLOCK_COMMENT("trace_method_handle {"); |
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358 // save: Gargs, O5_savedSP |
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359 __ save_frame(16); |
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360 __ set((intptr_t) adaptername, O0); |
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361 __ mov(G3_method_handle, O1); |
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362 __ mov(G3_method_handle, L3); |
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363 __ mov(Gargs, L4); |
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364 __ mov(G5_method_type, L5); |
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365 __ call_VM_leaf(L7, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); |
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366 |
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367 __ mov(L3, G3_method_handle); |
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368 __ mov(L4, Gargs); |
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369 __ mov(L5, G5_method_type); |
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370 __ restore(); |
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371 BLOCK_COMMENT("} trace_method_handle"); |
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372 } |
| 1503 | 373 #endif // PRODUCT |
| 374 | |
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375 // which conversion op types are implemented here? |
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376 int MethodHandles::adapter_conversion_ops_supported_mask() { |
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377 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) |
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378 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) |
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379 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) |
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380 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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381 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) |
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382 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) |
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383 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) |
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384 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) |
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385 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) |
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386 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
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387 ); |
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388 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
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389 } |
| 1503 | 390 |
| 391 //------------------------------------------------------------------------------ | |
| 392 // MethodHandles::generate_method_handle_stub | |
| 393 // | |
| 710 | 394 // Generate an "entry" field for a method handle. |
| 395 // This determines how the method handle will respond to calls. | |
| 396 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { | |
| 1503 | 397 // Here is the register state during an interpreted call, |
| 398 // as set up by generate_method_handle_interpreter_entry(): | |
| 399 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
| 400 // - G3: receiver method handle | |
| 401 // - O5_savedSP: sender SP (must preserve) | |
| 402 | |
| 403 Register O0_argslot = O0; | |
| 404 Register O1_scratch = O1; | |
| 405 Register O2_scratch = O2; | |
| 406 Register O3_scratch = O3; | |
| 407 Register G5_index = G5; | |
| 408 | |
| 409 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); | |
| 410 | |
| 411 // Some handy addresses: | |
| 412 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
| 413 | |
| 414 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes()); | |
| 415 | |
| 416 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes()); | |
| 417 | |
| 418 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes()); | |
| 419 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes()); | |
| 420 | |
| 421 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes()); | |
| 422 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes()); | |
| 423 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes()); | |
| 424 | |
| 425 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
| 426 | |
| 427 if (have_entry(ek)) { | |
| 428 __ nop(); // empty stubs make SG sick | |
| 429 return; | |
| 430 } | |
| 431 | |
| 432 address interp_entry = __ pc(); | |
| 433 | |
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434 trace_method_handle(_masm, entry_name(ek)); |
| 1503 | 435 |
| 436 switch ((int) ek) { | |
| 437 case _raise_exception: | |
| 438 { | |
| 439 // Not a real MH entry, but rather shared code for raising an | |
| 440 // exception. Extra local arguments are passed in scratch | |
| 441 // registers, as required type in O3, failing object (or NULL) | |
| 442 // in O2, failing bytecode type in O1. | |
| 443 | |
| 444 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
| 445 | |
| 446 // Push arguments as if coming from the interpreter. | |
| 447 Register O0_scratch = O0_argslot; | |
| 1506 | 448 int stackElementSize = Interpreter::stackElementSize; |
| 1503 | 449 |
| 1564 | 450 // Make space on the stack for the arguments and set Gargs |
| 451 // correctly. | |
| 452 __ sub(SP, 4*stackElementSize, SP); // Keep stack aligned. | |
| 453 __ add(SP, (frame::varargs_offset)*wordSize - 1*Interpreter::stackElementSize + STACK_BIAS + BytesPerWord, Gargs); | |
| 1503 | 454 |
| 455 // void raiseException(int code, Object actual, Object required) | |
| 456 __ st( O1_scratch, Address(Gargs, 2*stackElementSize)); // code | |
| 457 __ st_ptr(O2_scratch, Address(Gargs, 1*stackElementSize)); // actual | |
| 458 __ st_ptr(O3_scratch, Address(Gargs, 0*stackElementSize)); // required | |
| 459 | |
| 460 Label no_method; | |
| 461 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method | |
| 462 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); | |
| 463 __ ld_ptr(Address(G5_method, 0), G5_method); | |
| 464 __ tst(G5_method); | |
| 465 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
| 466 __ delayed()->nop(); | |
| 467 | |
| 468 int jobject_oop_offset = 0; | |
| 469 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); | |
| 470 __ tst(G5_method); | |
| 471 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
| 472 __ delayed()->nop(); | |
| 473 | |
| 474 __ verify_oop(G5_method); | |
| 475 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 476 __ delayed()->nop(); | |
| 477 | |
| 478 // If we get here, the Java runtime did not do its job of creating the exception. | |
| 479 // Do something that is at least causes a valid throw from the interpreter. | |
| 480 __ bind(no_method); | |
| 481 __ unimplemented("_raise_exception no method"); | |
| 482 } | |
| 483 break; | |
| 484 | |
| 485 case _invokestatic_mh: | |
| 486 case _invokespecial_mh: | |
| 487 { | |
| 1846 | 488 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
| 1503 | 489 __ verify_oop(G5_method); |
| 490 // Same as TemplateTable::invokestatic or invokespecial, | |
| 491 // minus the CP setup and profiling: | |
| 492 if (ek == _invokespecial_mh) { | |
| 493 // Must load & check the first argument before entering the target method. | |
| 494 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
| 495 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
| 496 __ null_check(G3_method_handle); | |
| 497 __ verify_oop(G3_method_handle); | |
| 498 } | |
| 499 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 500 __ delayed()->nop(); | |
| 501 } | |
| 502 break; | |
| 503 | |
| 504 case _invokevirtual_mh: | |
| 505 { | |
| 506 // Same as TemplateTable::invokevirtual, | |
| 507 // minus the CP setup and profiling: | |
| 508 | |
| 509 // Pick out the vtable index and receiver offset from the MH, | |
| 510 // and then we can discard it: | |
| 511 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
| 512 __ ldsw(G3_dmh_vmindex, G5_index); | |
| 513 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
| 514 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
| 515 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
| 516 | |
| 517 // Get receiver klass: | |
| 518 Register O0_klass = O0_argslot; | |
| 519 __ load_klass(G3_method_handle, O0_klass); | |
| 520 __ verify_oop(O0_klass); | |
| 521 | |
| 522 // Get target methodOop & entry point: | |
| 523 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
| 524 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
| 525 | |
| 526 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
| 527 __ add(O0_klass, G5_index, O0_klass); | |
| 528 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
| 529 __ ld_ptr(vtable_entry_addr, G5_method); | |
| 530 | |
| 531 __ verify_oop(G5_method); | |
| 532 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 533 __ delayed()->nop(); | |
| 534 } | |
| 535 break; | |
| 536 | |
| 537 case _invokeinterface_mh: | |
| 538 { | |
| 539 // Same as TemplateTable::invokeinterface, | |
| 540 // minus the CP setup and profiling: | |
| 541 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
| 542 Register O1_intf = O1_scratch; | |
| 1846 | 543 __ load_heap_oop(G3_mh_vmtarget, O1_intf); |
| 1503 | 544 __ ldsw(G3_dmh_vmindex, G5_index); |
| 545 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
| 546 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
| 547 | |
| 548 // Get receiver klass: | |
| 549 Register O0_klass = O0_argslot; | |
| 550 __ load_klass(G3_method_handle, O0_klass); | |
| 551 __ verify_oop(O0_klass); | |
| 552 | |
| 553 // Get interface: | |
| 554 Label no_such_interface; | |
| 555 __ verify_oop(O1_intf); | |
| 556 __ lookup_interface_method(O0_klass, O1_intf, | |
| 557 // Note: next two args must be the same: | |
| 558 G5_index, G5_method, | |
| 559 O2_scratch, | |
| 560 O3_scratch, | |
| 561 no_such_interface); | |
| 562 | |
| 563 __ verify_oop(G5_method); | |
| 564 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 565 __ delayed()->nop(); | |
| 566 | |
| 567 __ bind(no_such_interface); | |
| 568 // Throw an exception. | |
| 569 // For historical reasons, it will be IncompatibleClassChangeError. | |
| 570 __ unimplemented("not tested yet"); | |
| 571 __ ld_ptr(Address(O1_intf, java_mirror_offset), O3_scratch); // required interface | |
| 572 __ mov(O0_klass, O2_scratch); // bad receiver | |
| 573 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
| 574 __ delayed()->mov(Bytecodes::_invokeinterface, O1_scratch); // who is complaining? | |
| 575 } | |
| 576 break; | |
| 577 | |
| 578 case _bound_ref_mh: | |
| 579 case _bound_int_mh: | |
| 580 case _bound_long_mh: | |
| 581 case _bound_ref_direct_mh: | |
| 582 case _bound_int_direct_mh: | |
| 583 case _bound_long_direct_mh: | |
| 584 { | |
| 585 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
| 586 BasicType arg_type = T_ILLEGAL; | |
| 587 int arg_mask = _INSERT_NO_MASK; | |
| 588 int arg_slots = -1; | |
| 589 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
| 590 | |
| 591 // Make room for the new argument: | |
| 592 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
| 593 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 594 | |
| 595 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
| 596 | |
| 597 // Store bound argument into the new stack slot: | |
| 1846 | 598 __ load_heap_oop(G3_bmh_argument, O1_scratch); |
| 1503 | 599 if (arg_type == T_OBJECT) { |
| 600 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
| 601 } else { | |
| 602 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
| 603 __ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type)); | |
| 604 if (arg_slots == 2) { | |
| 605 __ unimplemented("not yet tested"); | |
| 606 #ifndef _LP64 | |
| 607 __ signx(O2_scratch, O3_scratch); // Sign extend | |
| 608 #endif | |
| 609 __ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64 | |
| 610 } else { | |
| 611 __ st_ptr( O2_scratch, Address(O0_argslot, 0)); | |
| 612 } | |
| 613 } | |
| 614 | |
| 615 if (direct_to_method) { | |
| 1846 | 616 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
| 1503 | 617 __ verify_oop(G5_method); |
| 618 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 619 __ delayed()->nop(); | |
| 620 } else { | |
| 1846 | 621 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); // target is a methodOop |
| 1503 | 622 __ verify_oop(G3_method_handle); |
| 623 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
| 624 } | |
| 625 } | |
| 626 break; | |
| 627 | |
| 628 case _adapter_retype_only: | |
| 629 case _adapter_retype_raw: | |
| 630 // Immediately jump to the next MH layer: | |
| 1846 | 631 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 632 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 633 // This is OK when all parameter types widen. | |
| 634 // It is also OK when a return type narrows. | |
| 635 break; | |
| 636 | |
| 637 case _adapter_check_cast: | |
| 638 { | |
| 639 // Temps: | |
| 640 Register G5_klass = G5_index; // Interesting AMH data. | |
| 641 | |
| 642 // Check a reference argument before jumping to the next layer of MH: | |
| 643 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 644 Address vmarg = __ argument_address(O0_argslot); | |
| 645 | |
| 646 // What class are we casting to? | |
| 1846 | 647 __ load_heap_oop(G3_amh_argument, G5_klass); // This is a Class object! |
| 648 __ load_heap_oop(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
| 1503 | 649 |
| 650 Label done; | |
| 651 __ ld_ptr(vmarg, O1_scratch); | |
| 652 __ tst(O1_scratch); | |
| 653 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
| 654 __ delayed()->nop(); | |
| 655 __ load_klass(O1_scratch, O1_scratch); | |
| 656 | |
| 657 // Live at this point: | |
| 658 // - G5_klass : klass required by the target method | |
| 659 // - O1_scratch : argument klass to test | |
| 660 // - G3_method_handle: adapter method handle | |
| 661 __ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done); | |
| 662 | |
| 663 // If we get here, the type check failed! | |
| 664 __ ldsw(G3_amh_vmargslot, O0_argslot); // reload argslot field | |
| 1846 | 665 __ load_heap_oop(G3_amh_argument, O3_scratch); // required class |
| 1503 | 666 __ ld_ptr(vmarg, O2_scratch); // bad object |
| 667 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
| 668 __ delayed()->mov(Bytecodes::_checkcast, O1_scratch); // who is complaining? | |
| 669 | |
| 670 __ bind(done); | |
| 671 // Get the new MH: | |
| 1846 | 672 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 673 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 674 } | |
| 675 break; | |
| 676 | |
| 677 case _adapter_prim_to_prim: | |
| 678 case _adapter_ref_to_prim: | |
| 679 // Handled completely by optimized cases. | |
| 680 __ stop("init_AdapterMethodHandle should not issue this"); | |
| 681 break; | |
| 682 | |
| 683 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
| 684 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
| 685 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
| 686 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
| 687 { | |
| 688 // Perform an in-place conversion to int or an int subword. | |
| 689 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 690 Address vmarg = __ argument_address(O0_argslot); | |
| 691 Address value; | |
| 692 bool value_left_justified = false; | |
| 693 | |
| 694 switch (ek) { | |
| 695 case _adapter_opt_i2i: | |
|
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696 value = vmarg; |
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697 break; |
| 1503 | 698 case _adapter_opt_l2i: |
|
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699 { |
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700 // just delete the extra slot |
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701 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); |
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702 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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703 value = vmarg = Address(O0_argslot, 0); |
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704 } |
| 1503 | 705 break; |
| 706 case _adapter_opt_unboxi: | |
| 707 { | |
| 708 // Load the value up from the heap. | |
| 709 __ ld_ptr(vmarg, O1_scratch); | |
| 710 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
| 711 #ifdef ASSERT | |
| 712 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
| 713 if (is_subword_type(BasicType(bt))) | |
| 714 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
| 715 } | |
| 716 #endif | |
| 717 __ null_check(O1_scratch, value_offset); | |
| 718 value = Address(O1_scratch, value_offset); | |
| 719 #ifdef _BIG_ENDIAN | |
| 720 // Values stored in objects are packed. | |
| 721 value_left_justified = true; | |
| 722 #endif | |
| 723 } | |
| 724 break; | |
| 725 default: | |
| 726 ShouldNotReachHere(); | |
| 727 } | |
| 728 | |
| 729 // This check is required on _BIG_ENDIAN | |
| 730 Register G5_vminfo = G5_index; | |
| 731 __ ldsw(G3_amh_conversion, G5_vminfo); | |
| 732 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
| 733 | |
| 734 // Original 32-bit vmdata word must be of this form: | |
| 735 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
| 736 __ lduw(value, O1_scratch); | |
| 737 if (!value_left_justified) | |
| 738 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
| 739 Label zero_extend, done; | |
| 740 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
| 741 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
| 742 __ delayed()->nop(); | |
| 743 | |
| 744 // this path is taken for int->byte, int->short | |
| 745 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
| 746 __ ba(false, done); | |
| 747 __ delayed()->nop(); | |
| 748 | |
| 749 __ bind(zero_extend); | |
| 750 // this is taken for int->char | |
| 751 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
| 752 | |
| 753 __ bind(done); | |
| 754 __ st(O1_scratch, vmarg); | |
| 755 | |
| 756 // Get the new MH: | |
| 1846 | 757 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 758 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 759 } | |
| 760 break; | |
| 761 | |
| 762 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
| 763 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
| 764 { | |
| 765 // Perform an in-place int-to-long or ref-to-long conversion. | |
| 766 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 767 | |
| 768 // On big-endian machine we duplicate the slot and store the MSW | |
| 769 // in the first slot. | |
| 770 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
| 771 | |
| 772 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
| 773 | |
| 774 Address arg_lsw(O0_argslot, 0); | |
| 1506 | 775 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
| 1503 | 776 |
| 777 switch (ek) { | |
| 778 case _adapter_opt_i2l: | |
| 779 { | |
| 780 __ ldsw(arg_lsw, O2_scratch); // Load LSW | |
| 781 #ifndef _LP64 | |
| 782 __ signx(O2_scratch, O3_scratch); // Sign extend | |
| 783 #endif | |
| 784 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 | |
| 785 } | |
| 786 break; | |
| 787 case _adapter_opt_unboxl: | |
| 788 { | |
| 789 // Load the value up from the heap. | |
| 790 __ ld_ptr(arg_lsw, O1_scratch); | |
| 791 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
| 792 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
| 793 __ null_check(O1_scratch, value_offset); | |
| 794 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
| 795 __ st_long(O2_scratch, arg_msw); | |
| 796 } | |
| 797 break; | |
| 798 default: | |
| 799 ShouldNotReachHere(); | |
| 800 } | |
| 801 | |
| 1846 | 802 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 803 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 804 } | |
| 805 break; | |
| 806 | |
| 807 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
| 808 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
| 809 { | |
| 810 // perform an in-place floating primitive conversion | |
| 811 __ unimplemented(entry_name(ek)); | |
| 812 } | |
| 813 break; | |
| 814 | |
| 815 case _adapter_prim_to_ref: | |
| 816 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 817 break; | |
| 818 | |
| 819 case _adapter_swap_args: | |
| 820 case _adapter_rot_args: | |
| 821 // handled completely by optimized cases | |
| 822 __ stop("init_AdapterMethodHandle should not issue this"); | |
| 823 break; | |
| 824 | |
| 825 case _adapter_opt_swap_1: | |
| 826 case _adapter_opt_swap_2: | |
| 827 case _adapter_opt_rot_1_up: | |
| 828 case _adapter_opt_rot_1_down: | |
| 829 case _adapter_opt_rot_2_up: | |
| 830 case _adapter_opt_rot_2_down: | |
| 831 { | |
| 832 int swap_bytes = 0, rotate = 0; | |
| 833 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
| 834 | |
| 835 // 'argslot' is the position of the first argument to swap. | |
| 836 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 837 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 838 | |
| 839 // 'vminfo' is the second. | |
| 840 Register O1_destslot = O1_scratch; | |
| 841 __ ldsw(G3_amh_conversion, O1_destslot); | |
| 842 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
| 843 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
| 844 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
| 845 | |
| 846 if (!rotate) { | |
| 847 for (int i = 0; i < swap_bytes; i += wordSize) { | |
| 848 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
| 849 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
| 850 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
| 851 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
| 852 } | |
| 853 } else { | |
| 854 // Save the first chunk, which is going to get overwritten. | |
| 855 switch (swap_bytes) { | |
| 856 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
| 857 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
| 858 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
| 859 default: ShouldNotReachHere(); | |
| 860 } | |
| 861 | |
| 862 if (rotate > 0) { | |
| 863 // Rorate upward. | |
| 864 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
| 865 #if ASSERT | |
| 866 { | |
| 867 // Verify that argslot > destslot, by at least swap_bytes. | |
| 868 Label L_ok; | |
| 869 __ cmp(O0_argslot, O1_destslot); | |
| 870 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
| 871 __ delayed()->nop(); | |
| 872 __ stop("source must be above destination (upward rotation)"); | |
| 873 __ bind(L_ok); | |
| 874 } | |
| 875 #endif | |
| 876 // Work argslot down to destslot, copying contiguous data upwards. | |
| 877 // Pseudo-code: | |
| 878 // argslot = src_addr - swap_bytes | |
| 879 // destslot = dest_addr | |
| 880 // while (argslot >= destslot) { | |
| 881 // *(argslot + swap_bytes) = *(argslot + 0); | |
| 882 // argslot--; | |
| 883 // } | |
| 884 Label loop; | |
| 885 __ bind(loop); | |
| 886 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
| 887 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
| 888 __ sub(O0_argslot, wordSize, O0_argslot); | |
| 889 __ cmp(O0_argslot, O1_destslot); | |
| 890 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
| 891 __ delayed()->nop(); // FILLME | |
| 892 } else { | |
| 893 __ add(O0_argslot, swap_bytes, O0_argslot); | |
| 894 #if ASSERT | |
| 895 { | |
| 896 // Verify that argslot < destslot, by at least swap_bytes. | |
| 897 Label L_ok; | |
| 898 __ cmp(O0_argslot, O1_destslot); | |
| 899 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
| 900 __ delayed()->nop(); | |
| 901 __ stop("source must be above destination (upward rotation)"); | |
| 902 __ bind(L_ok); | |
| 903 } | |
| 904 #endif | |
| 905 // Work argslot up to destslot, copying contiguous data downwards. | |
| 906 // Pseudo-code: | |
| 907 // argslot = src_addr + swap_bytes | |
| 908 // destslot = dest_addr | |
| 909 // while (argslot >= destslot) { | |
| 910 // *(argslot - swap_bytes) = *(argslot + 0); | |
| 911 // argslot++; | |
| 912 // } | |
| 913 Label loop; | |
| 914 __ bind(loop); | |
| 915 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
| 916 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
| 917 __ add(O0_argslot, wordSize, O0_argslot); | |
| 918 __ cmp(O0_argslot, O1_destslot); | |
| 919 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
| 920 __ delayed()->nop(); // FILLME | |
| 921 } | |
| 922 | |
| 923 // Store the original first chunk into the destination slot, now free. | |
| 924 switch (swap_bytes) { | |
| 925 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
| 926 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
| 927 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
| 928 default: ShouldNotReachHere(); | |
| 929 } | |
| 930 } | |
| 931 | |
| 1846 | 932 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 933 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 934 } | |
| 935 break; | |
| 936 | |
| 937 case _adapter_dup_args: | |
| 938 { | |
| 939 // 'argslot' is the position of the first argument to duplicate. | |
| 940 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 941 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 942 | |
| 943 // 'stack_move' is negative number of words to duplicate. | |
| 944 Register G5_stack_move = G5_index; | |
| 945 __ ldsw(G3_amh_conversion, G5_stack_move); | |
| 946 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
| 947 | |
| 948 // Remember the old Gargs (argslot[0]). | |
| 949 Register O1_oldarg = O1_scratch; | |
| 950 __ mov(Gargs, O1_oldarg); | |
| 951 | |
| 952 // Move Gargs down to make room for dups. | |
| 953 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
| 954 __ add(Gargs, G5_stack_move, Gargs); | |
| 955 | |
| 956 // Compute the new Gargs (argslot[0]). | |
| 957 Register O2_newarg = O2_scratch; | |
| 958 __ mov(Gargs, O2_newarg); | |
| 959 | |
| 960 // Copy from oldarg[0...] down to newarg[0...] | |
| 961 // Pseude-code: | |
| 962 // O1_oldarg = old-Gargs | |
| 963 // O2_newarg = new-Gargs | |
| 964 // O0_argslot = argslot | |
| 965 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
| 966 Label loop; | |
| 967 __ bind(loop); | |
| 968 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
| 969 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
| 970 __ add(O0_argslot, wordSize, O0_argslot); | |
| 971 __ add(O2_newarg, wordSize, O2_newarg); | |
| 972 __ cmp(O2_newarg, O1_oldarg); | |
| 973 __ brx(Assembler::less, false, Assembler::pt, loop); | |
| 974 __ delayed()->nop(); // FILLME | |
| 975 | |
| 1846 | 976 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 977 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 978 } | |
| 979 break; | |
| 980 | |
| 981 case _adapter_drop_args: | |
| 982 { | |
| 983 // 'argslot' is the position of the first argument to nuke. | |
| 984 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 985 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 986 | |
| 987 // 'stack_move' is number of words to drop. | |
| 988 Register G5_stack_move = G5_index; | |
| 989 __ ldsw(G3_amh_conversion, G5_stack_move); | |
| 990 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
| 991 | |
| 992 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
| 993 | |
| 1846 | 994 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 995 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 996 } | |
| 997 break; | |
| 998 | |
| 999 case _adapter_collect_args: | |
| 1000 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 1001 break; | |
| 1002 | |
| 1003 case _adapter_spread_args: | |
| 1004 // Handled completely by optimized cases. | |
| 1005 __ stop("init_AdapterMethodHandle should not issue this"); | |
| 1006 break; | |
| 1007 | |
| 1008 case _adapter_opt_spread_0: | |
| 1009 case _adapter_opt_spread_1: | |
| 1010 case _adapter_opt_spread_more: | |
| 1011 { | |
| 1012 // spread an array out into a group of arguments | |
| 1013 __ unimplemented(entry_name(ek)); | |
| 1014 } | |
| 1015 break; | |
| 1016 | |
| 1017 case _adapter_flyby: | |
| 1018 case _adapter_ricochet: | |
| 1019 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 1020 break; | |
| 1021 | |
| 1022 default: | |
| 1023 ShouldNotReachHere(); | |
| 1024 } | |
| 1025 | |
| 1026 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
| 1027 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 1028 | |
| 1029 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
| 710 | 1030 } |