Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 8104:f16e75e0cf11
8000797: NPG: is_pseudo_string_at() doesn't work
Summary: Zero Symbol* for constant pool strings to indicate pseudo_strings (objects that aren't strings). Clean up JVM_CONSTANT_Object and unused flags.
Reviewed-by: sspitsyn, jrose
| author | coleenp |
|---|---|
| date | Fri, 22 Feb 2013 08:36:42 -0500 |
| parents | db9981fd3124 |
| children | f2e682ef3156 aeaca88565e6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 8104 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "interpreter/interpreter.hpp" | |
| 27 #include "interpreter/interpreterRuntime.hpp" | |
| 28 #include "interpreter/templateTable.hpp" | |
| 29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
| 1972 | 31 #include "oops/objArrayKlass.hpp" |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "prims/methodHandles.hpp" | |
| 34 #include "runtime/sharedRuntime.hpp" | |
| 35 #include "runtime/stubRoutines.hpp" | |
| 36 #include "runtime/synchronizer.hpp" | |
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37 #include "utilities/macros.hpp" |
| 0 | 38 |
| 39 #ifndef CC_INTERP | |
| 40 #define __ _masm-> | |
| 41 | |
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42 // Misc helpers |
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43 |
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44 // Do an oop store like *(base + index + offset) = val |
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45 // index can be noreg, |
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46 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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47 Register base, |
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48 Register index, |
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49 int offset, |
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50 Register val, |
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51 Register tmp, |
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52 BarrierSet::Name barrier, |
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53 bool precise) { |
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54 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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55 assert(index == noreg || offset == 0, "only one offset"); |
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56 switch (barrier) { |
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57 #if INCLUDE_ALL_GCS |
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58 case BarrierSet::G1SATBCT: |
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59 case BarrierSet::G1SATBCTLogging: |
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60 { |
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61 // Load and record the previous value. |
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62 __ g1_write_barrier_pre(base, index, offset, |
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63 noreg /* pre_val */, |
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64 tmp, true /*preserve_o_regs*/); |
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65 |
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66 if (index == noreg ) { |
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67 assert(Assembler::is_simm13(offset), "fix this code"); |
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68 __ store_heap_oop(val, base, offset); |
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69 } else { |
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70 __ store_heap_oop(val, base, index); |
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71 } |
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72 |
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73 // No need for post barrier if storing NULL |
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74 if (val != G0) { |
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75 if (precise) { |
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76 if (index == noreg) { |
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77 __ add(base, offset, base); |
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78 } else { |
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79 __ add(base, index, base); |
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80 } |
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81 } |
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82 __ g1_write_barrier_post(base, val, tmp); |
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83 } |
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84 } |
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85 break; |
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86 #endif // INCLUDE_ALL_GCS |
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87 case BarrierSet::CardTableModRef: |
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88 case BarrierSet::CardTableExtension: |
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89 { |
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90 if (index == noreg ) { |
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91 assert(Assembler::is_simm13(offset), "fix this code"); |
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92 __ store_heap_oop(val, base, offset); |
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93 } else { |
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94 __ store_heap_oop(val, base, index); |
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95 } |
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96 // No need for post barrier if storing NULL |
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97 if (val != G0) { |
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98 if (precise) { |
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99 if (index == noreg) { |
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100 __ add(base, offset, base); |
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101 } else { |
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102 __ add(base, index, base); |
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103 } |
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104 } |
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105 __ card_write_barrier_post(base, val, tmp); |
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106 } |
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107 } |
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108 break; |
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109 case BarrierSet::ModRef: |
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110 case BarrierSet::Other: |
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111 ShouldNotReachHere(); |
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112 break; |
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113 default : |
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114 ShouldNotReachHere(); |
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115 |
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116 } |
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117 } |
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118 |
| 0 | 119 |
| 120 //---------------------------------------------------------------------------------------------------- | |
| 121 // Platform-dependent initialization | |
| 122 | |
| 123 void TemplateTable::pd_initialize() { | |
| 124 // (none) | |
| 125 } | |
| 126 | |
| 127 | |
| 128 //---------------------------------------------------------------------------------------------------- | |
| 129 // Condition conversion | |
| 130 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
| 131 switch (cc) { | |
| 132 case TemplateTable::equal : return Assembler::notEqual; | |
| 133 case TemplateTable::not_equal : return Assembler::equal; | |
| 134 case TemplateTable::less : return Assembler::greaterEqual; | |
| 135 case TemplateTable::less_equal : return Assembler::greater; | |
| 136 case TemplateTable::greater : return Assembler::lessEqual; | |
| 137 case TemplateTable::greater_equal: return Assembler::less; | |
| 138 } | |
| 139 ShouldNotReachHere(); | |
| 140 return Assembler::zero; | |
| 141 } | |
| 142 | |
| 143 //---------------------------------------------------------------------------------------------------- | |
| 144 // Miscelaneous helper routines | |
| 145 | |
| 146 | |
| 147 Address TemplateTable::at_bcp(int offset) { | |
| 148 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 727 | 149 return Address(Lbcp, offset); |
| 0 | 150 } |
| 151 | |
| 152 | |
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153 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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154 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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155 int byte_no) { |
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156 // With sharing on, may need to test Method* flag. |
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157 if (!RewriteBytecodes) return; |
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158 Label L_patch_done; |
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159 |
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160 switch (bc) { |
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161 case Bytecodes::_fast_aputfield: |
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162 case Bytecodes::_fast_bputfield: |
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163 case Bytecodes::_fast_cputfield: |
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164 case Bytecodes::_fast_dputfield: |
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165 case Bytecodes::_fast_fputfield: |
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166 case Bytecodes::_fast_iputfield: |
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167 case Bytecodes::_fast_lputfield: |
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168 case Bytecodes::_fast_sputfield: |
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169 { |
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170 // We skip bytecode quickening for putfield instructions when |
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171 // the put_code written to the constant pool cache is zero. |
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172 // This is required so that every execution of this instruction |
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173 // calls out to InterpreterRuntime::resolve_get_put to do |
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174 // additional, required work. |
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175 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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176 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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177 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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178 __ set(bc, bc_reg); |
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179 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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180 } |
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181 break; |
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182 default: |
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183 assert(byte_no == -1, "sanity"); |
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184 if (load_bc_into_bc_reg) { |
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185 __ set(bc, bc_reg); |
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186 } |
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187 } |
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188 |
| 0 | 189 if (JvmtiExport::can_post_breakpoint()) { |
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190 Label L_fast_patch; |
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191 __ ldub(at_bcp(0), temp_reg); |
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192 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
| 0 | 193 // perform the quickening, slowly, in the bowels of the breakpoint table |
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194 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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195 __ ba_short(L_patch_done); |
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196 __ bind(L_fast_patch); |
| 0 | 197 } |
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198 |
| 0 | 199 #ifdef ASSERT |
| 200 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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201 Label L_okay; |
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202 __ ldub(at_bcp(0), temp_reg); |
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203 __ cmp(temp_reg, orig_bytecode); |
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204 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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205 __ delayed()->cmp(temp_reg, bc_reg); |
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206 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
| 0 | 207 __ delayed()->nop(); |
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208 __ stop("patching the wrong bytecode"); |
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209 __ bind(L_okay); |
| 0 | 210 #endif |
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211 |
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212 // patch bytecode |
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213 __ stb(bc_reg, at_bcp(0)); |
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214 __ bind(L_patch_done); |
| 0 | 215 } |
| 216 | |
| 217 //---------------------------------------------------------------------------------------------------- | |
| 218 // Individual instructions | |
| 219 | |
| 220 void TemplateTable::nop() { | |
| 221 transition(vtos, vtos); | |
| 222 // nothing to do | |
| 223 } | |
| 224 | |
| 225 void TemplateTable::shouldnotreachhere() { | |
| 226 transition(vtos, vtos); | |
| 227 __ stop("shouldnotreachhere bytecode"); | |
| 228 } | |
| 229 | |
| 230 void TemplateTable::aconst_null() { | |
| 231 transition(vtos, atos); | |
| 232 __ clr(Otos_i); | |
| 233 } | |
| 234 | |
| 235 | |
| 236 void TemplateTable::iconst(int value) { | |
| 237 transition(vtos, itos); | |
| 238 __ set(value, Otos_i); | |
| 239 } | |
| 240 | |
| 241 | |
| 242 void TemplateTable::lconst(int value) { | |
| 243 transition(vtos, ltos); | |
| 244 assert(value >= 0, "check this code"); | |
| 245 #ifdef _LP64 | |
| 246 __ set(value, Otos_l); | |
| 247 #else | |
| 248 __ set(value, Otos_l2); | |
| 249 __ clr( Otos_l1); | |
| 250 #endif | |
| 251 } | |
| 252 | |
| 253 | |
| 254 void TemplateTable::fconst(int value) { | |
| 255 transition(vtos, ftos); | |
| 256 static float zero = 0.0, one = 1.0, two = 2.0; | |
| 257 float* p; | |
| 258 switch( value ) { | |
| 259 default: ShouldNotReachHere(); | |
| 260 case 0: p = &zero; break; | |
| 261 case 1: p = &one; break; | |
| 262 case 2: p = &two; break; | |
| 263 } | |
| 727 | 264 AddressLiteral a(p); |
| 265 __ sethi(a, G3_scratch); | |
| 266 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
| 0 | 267 } |
| 268 | |
| 269 | |
| 270 void TemplateTable::dconst(int value) { | |
| 271 transition(vtos, dtos); | |
| 272 static double zero = 0.0, one = 1.0; | |
| 273 double* p; | |
| 274 switch( value ) { | |
| 275 default: ShouldNotReachHere(); | |
| 276 case 0: p = &zero; break; | |
| 277 case 1: p = &one; break; | |
| 278 } | |
| 727 | 279 AddressLiteral a(p); |
| 280 __ sethi(a, G3_scratch); | |
| 281 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
| 0 | 282 } |
| 283 | |
| 284 | |
| 285 // %%%%% Should factore most snippet templates across platforms | |
| 286 | |
| 287 void TemplateTable::bipush() { | |
| 288 transition(vtos, itos); | |
| 289 __ ldsb( at_bcp(1), Otos_i ); | |
| 290 } | |
| 291 | |
| 292 void TemplateTable::sipush() { | |
| 293 transition(vtos, itos); | |
| 294 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
| 295 } | |
| 296 | |
| 297 void TemplateTable::ldc(bool wide) { | |
| 298 transition(vtos, vtos); | |
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299 Label call_ldc, notInt, isString, notString, notClass, exit; |
| 0 | 300 |
| 301 if (wide) { | |
| 302 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 303 } else { | |
| 304 __ ldub(Lbcp, 1, O1); | |
| 305 } | |
| 306 __ get_cpool_and_tags(O0, O2); | |
| 307 | |
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308 const int base_offset = ConstantPool::header_size() * wordSize; |
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309 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 310 |
| 311 // get type from tags | |
| 312 __ add(O2, tags_offset, O2); | |
| 313 __ ldub(O2, O1, O2); | |
| 3839 | 314 |
| 315 // unresolved class? If so, must resolve | |
| 316 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
| 317 | |
| 318 // unresolved class in error state | |
| 319 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
| 0 | 320 |
| 321 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
| 322 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
| 323 __ delayed()->add(O0, base_offset, O0); | |
| 324 | |
| 325 __ bind(call_ldc); | |
| 326 __ set(wide, O1); | |
| 327 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
| 328 __ push(atos); | |
| 3839 | 329 __ ba_short(exit); |
| 0 | 330 |
| 331 __ bind(notClass); | |
| 332 // __ add(O0, base_offset, O0); | |
| 333 __ sll(O1, LogBytesPerWord, O1); | |
| 334 __ cmp(O2, JVM_CONSTANT_Integer); | |
| 335 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
| 336 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
| 337 __ ld(O0, O1, Otos_i); | |
| 338 __ push(itos); | |
| 3839 | 339 __ ba_short(exit); |
| 0 | 340 |
| 341 __ bind(notInt); | |
| 342 // __ cmp(O2, JVM_CONSTANT_String); | |
| 343 __ brx(Assembler::notEqual, true, Assembler::pt, notString); | |
| 344 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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345 __ bind(isString); |
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346 __ stop("string should be rewritten to fast_aldc"); |
| 3839 | 347 __ ba_short(exit); |
| 0 | 348 |
| 349 __ bind(notString); | |
| 350 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 351 __ push(ftos); | |
| 352 | |
| 353 __ bind(exit); | |
| 354 } | |
| 355 | |
| 1602 | 356 // Fast path for caching oop constants. |
| 357 // %%% We should use this to handle Class and String constants also. | |
| 358 // %%% It will simplify the ldc/primitive path considerably. | |
| 359 void TemplateTable::fast_aldc(bool wide) { | |
| 360 transition(vtos, atos); | |
| 361 | |
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362 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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363 Label resolved; |
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364 |
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365 // We are resolved if the resolved reference cache entry contains a |
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366 // non-null object (CallSite, etc.) |
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367 assert_different_registers(Otos_i, G3_scratch); |
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368 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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369 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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370 __ tst(Otos_i); |
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371 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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372 __ delayed()->set((int)bytecode(), O1); |
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373 |
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374 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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375 |
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376 // first time invocation - must resolve first |
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377 __ call_VM(Otos_i, entry, O1); |
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378 __ bind(resolved); |
| 1602 | 379 __ verify_oop(Otos_i); |
| 380 } | |
| 381 | |
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382 |
| 0 | 383 void TemplateTable::ldc2_w() { |
| 384 transition(vtos, vtos); | |
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385 Label Long, exit; |
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386 |
| 0 | 387 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
| 388 __ get_cpool_and_tags(O0, O2); | |
| 389 | |
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390 const int base_offset = ConstantPool::header_size() * wordSize; |
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391 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 392 // get type from tags |
| 393 __ add(O2, tags_offset, O2); | |
| 394 __ ldub(O2, O1, O2); | |
| 395 | |
| 396 __ sll(O1, LogBytesPerWord, O1); | |
| 397 __ add(O0, O1, G3_scratch); | |
| 398 | |
| 3839 | 399 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
| 0 | 400 // A double can be placed at word-aligned locations in the constant pool. |
| 401 // Check out Conversions.java for an example. | |
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402 // Also ConstantPool::header_size() is 20, which makes it very difficult |
| 0 | 403 // to double-align double on the constant pool. SG, 11/7/97 |
| 404 #ifdef _LP64 | |
| 405 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
| 406 #else | |
| 407 FloatRegister f = Ftos_d; | |
| 408 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
| 409 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
| 410 f->successor()); | |
| 411 #endif | |
| 412 __ push(dtos); | |
| 3839 | 413 __ ba_short(exit); |
| 0 | 414 |
| 415 __ bind(Long); | |
| 416 #ifdef _LP64 | |
| 417 __ ldx(G3_scratch, base_offset, Otos_l); | |
| 418 #else | |
| 419 __ ld(G3_scratch, base_offset, Otos_l); | |
| 420 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
| 421 #endif | |
| 422 __ push(ltos); | |
| 423 | |
| 424 __ bind(exit); | |
| 425 } | |
| 426 | |
| 427 | |
| 428 void TemplateTable::locals_index(Register reg, int offset) { | |
| 429 __ ldub( at_bcp(offset), reg ); | |
| 430 } | |
| 431 | |
| 432 | |
| 433 void TemplateTable::locals_index_wide(Register reg) { | |
| 434 // offset is 2, not 1, because Lbcp points to wide prefix code | |
| 435 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
| 436 } | |
| 437 | |
| 438 void TemplateTable::iload() { | |
| 439 transition(vtos, itos); | |
| 440 // Rewrite iload,iload pair into fast_iload2 | |
| 441 // iload,caload pair into fast_icaload | |
| 442 if (RewriteFrequentPairs) { | |
| 443 Label rewrite, done; | |
| 444 | |
| 445 // get next byte | |
| 446 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
| 447 | |
| 448 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 449 // last two iloads in a pair. Comparing against fast_iload means that | |
| 450 // the next bytecode is neither an iload or a caload, and therefore | |
| 451 // an iload pair. | |
| 3839 | 452 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
| 0 | 453 |
| 454 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
| 455 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 456 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
| 457 | |
| 458 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
| 459 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 460 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
| 461 | |
| 462 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
| 463 // rewrite | |
| 464 // G4_scratch: fast bytecode | |
| 465 __ bind(rewrite); | |
| 466 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
| 467 __ bind(done); | |
| 468 } | |
| 469 | |
| 470 // Get the local value into tos | |
| 471 locals_index(G3_scratch); | |
| 472 __ access_local_int( G3_scratch, Otos_i ); | |
| 473 } | |
| 474 | |
| 475 void TemplateTable::fast_iload2() { | |
| 476 transition(vtos, itos); | |
| 477 locals_index(G3_scratch); | |
| 478 __ access_local_int( G3_scratch, Otos_i ); | |
| 479 __ push_i(); | |
| 480 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
| 481 __ access_local_int( G3_scratch, Otos_i ); | |
| 482 } | |
| 483 | |
| 484 void TemplateTable::fast_iload() { | |
| 485 transition(vtos, itos); | |
| 486 locals_index(G3_scratch); | |
| 487 __ access_local_int( G3_scratch, Otos_i ); | |
| 488 } | |
| 489 | |
| 490 void TemplateTable::lload() { | |
| 491 transition(vtos, ltos); | |
| 492 locals_index(G3_scratch); | |
| 493 __ access_local_long( G3_scratch, Otos_l ); | |
| 494 } | |
| 495 | |
| 496 | |
| 497 void TemplateTable::fload() { | |
| 498 transition(vtos, ftos); | |
| 499 locals_index(G3_scratch); | |
| 500 __ access_local_float( G3_scratch, Ftos_f ); | |
| 501 } | |
| 502 | |
| 503 | |
| 504 void TemplateTable::dload() { | |
| 505 transition(vtos, dtos); | |
| 506 locals_index(G3_scratch); | |
| 507 __ access_local_double( G3_scratch, Ftos_d ); | |
| 508 } | |
| 509 | |
| 510 | |
| 511 void TemplateTable::aload() { | |
| 512 transition(vtos, atos); | |
| 513 locals_index(G3_scratch); | |
| 514 __ access_local_ptr( G3_scratch, Otos_i); | |
| 515 } | |
| 516 | |
| 517 | |
| 518 void TemplateTable::wide_iload() { | |
| 519 transition(vtos, itos); | |
| 520 locals_index_wide(G3_scratch); | |
| 521 __ access_local_int( G3_scratch, Otos_i ); | |
| 522 } | |
| 523 | |
| 524 | |
| 525 void TemplateTable::wide_lload() { | |
| 526 transition(vtos, ltos); | |
| 527 locals_index_wide(G3_scratch); | |
| 528 __ access_local_long( G3_scratch, Otos_l ); | |
| 529 } | |
| 530 | |
| 531 | |
| 532 void TemplateTable::wide_fload() { | |
| 533 transition(vtos, ftos); | |
| 534 locals_index_wide(G3_scratch); | |
| 535 __ access_local_float( G3_scratch, Ftos_f ); | |
| 536 } | |
| 537 | |
| 538 | |
| 539 void TemplateTable::wide_dload() { | |
| 540 transition(vtos, dtos); | |
| 541 locals_index_wide(G3_scratch); | |
| 542 __ access_local_double( G3_scratch, Ftos_d ); | |
| 543 } | |
| 544 | |
| 545 | |
| 546 void TemplateTable::wide_aload() { | |
| 547 transition(vtos, atos); | |
| 548 locals_index_wide(G3_scratch); | |
| 549 __ access_local_ptr( G3_scratch, Otos_i ); | |
| 550 __ verify_oop(Otos_i); | |
| 551 } | |
| 552 | |
| 553 | |
| 554 void TemplateTable::iaload() { | |
| 555 transition(itos, itos); | |
| 556 // Otos_i: index | |
| 557 // tos: array | |
| 558 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 559 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
| 560 } | |
| 561 | |
| 562 | |
| 563 void TemplateTable::laload() { | |
| 564 transition(itos, ltos); | |
| 565 // Otos_i: index | |
| 566 // O2: array | |
| 567 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 568 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
| 569 } | |
| 570 | |
| 571 | |
| 572 void TemplateTable::faload() { | |
| 573 transition(itos, ftos); | |
| 574 // Otos_i: index | |
| 575 // O2: array | |
| 576 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 577 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
| 578 } | |
| 579 | |
| 580 | |
| 581 void TemplateTable::daload() { | |
| 582 transition(itos, dtos); | |
| 583 // Otos_i: index | |
| 584 // O2: array | |
| 585 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 586 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
| 587 } | |
| 588 | |
| 589 | |
| 590 void TemplateTable::aaload() { | |
| 591 transition(itos, atos); | |
| 592 // Otos_i: index | |
| 593 // tos: array | |
|
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594 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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595 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
| 0 | 596 __ verify_oop(Otos_i); |
| 597 } | |
| 598 | |
| 599 | |
| 600 void TemplateTable::baload() { | |
| 601 transition(itos, itos); | |
| 602 // Otos_i: index | |
| 603 // tos: array | |
| 604 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
| 605 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
| 606 } | |
| 607 | |
| 608 | |
| 609 void TemplateTable::caload() { | |
| 610 transition(itos, itos); | |
| 611 // Otos_i: index | |
| 612 // tos: array | |
| 613 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 614 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 615 } | |
| 616 | |
| 617 void TemplateTable::fast_icaload() { | |
| 618 transition(vtos, itos); | |
| 619 // Otos_i: index | |
| 620 // tos: array | |
| 621 locals_index(G3_scratch); | |
| 622 __ access_local_int( G3_scratch, Otos_i ); | |
| 623 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 624 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 625 } | |
| 626 | |
| 627 | |
| 628 void TemplateTable::saload() { | |
| 629 transition(itos, itos); | |
| 630 // Otos_i: index | |
| 631 // tos: array | |
| 632 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 633 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
| 634 } | |
| 635 | |
| 636 | |
| 637 void TemplateTable::iload(int n) { | |
| 638 transition(vtos, itos); | |
| 639 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 640 } | |
| 641 | |
| 642 | |
| 643 void TemplateTable::lload(int n) { | |
| 644 transition(vtos, ltos); | |
| 645 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
| 646 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
| 647 } | |
| 648 | |
| 649 | |
| 650 void TemplateTable::fload(int n) { | |
| 651 transition(vtos, ftos); | |
| 652 assert(n < Argument::n_register_parameters, "would need more code"); | |
| 653 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
| 654 } | |
| 655 | |
| 656 | |
| 657 void TemplateTable::dload(int n) { | |
| 658 transition(vtos, dtos); | |
| 659 FloatRegister dst = Ftos_d; | |
| 660 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
| 661 } | |
| 662 | |
| 663 | |
| 664 void TemplateTable::aload(int n) { | |
| 665 transition(vtos, atos); | |
| 666 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 667 } | |
| 668 | |
| 669 | |
| 670 void TemplateTable::aload_0() { | |
| 671 transition(vtos, atos); | |
| 672 | |
| 673 // According to bytecode histograms, the pairs: | |
| 674 // | |
| 675 // _aload_0, _fast_igetfield (itos) | |
| 676 // _aload_0, _fast_agetfield (atos) | |
| 677 // _aload_0, _fast_fgetfield (ftos) | |
| 678 // | |
| 679 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 680 // bytecode checks the next bytecode and then rewrites the current | |
| 681 // bytecode into a pair bytecode; otherwise it rewrites the current | |
| 682 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 683 // | |
| 684 if (RewriteFrequentPairs) { | |
| 685 Label rewrite, done; | |
| 686 | |
| 687 // get next byte | |
| 688 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
| 689 | |
| 690 // do actual aload_0 | |
| 691 aload(0); | |
| 692 | |
| 693 // if _getfield then wait with rewrite | |
| 3839 | 694 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
| 0 | 695 |
| 696 // if _igetfield then rewrite to _fast_iaccess_0 | |
| 697 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 698 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
| 699 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 700 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
| 701 | |
| 702 // if _agetfield then rewrite to _fast_aaccess_0 | |
| 703 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 704 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
| 705 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 706 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
| 707 | |
| 708 // if _fgetfield then rewrite to _fast_faccess_0 | |
| 709 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 710 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
| 711 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 712 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
| 713 | |
| 714 // else rewrite to _fast_aload0 | |
| 715 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 716 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
| 717 | |
| 718 // rewrite | |
| 719 // G4_scratch: fast bytecode | |
| 720 __ bind(rewrite); | |
| 721 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
| 722 __ bind(done); | |
| 723 } else { | |
| 724 aload(0); | |
| 725 } | |
| 726 } | |
| 727 | |
| 728 | |
| 729 void TemplateTable::istore() { | |
| 730 transition(itos, vtos); | |
| 731 locals_index(G3_scratch); | |
| 732 __ store_local_int( G3_scratch, Otos_i ); | |
| 733 } | |
| 734 | |
| 735 | |
| 736 void TemplateTable::lstore() { | |
| 737 transition(ltos, vtos); | |
| 738 locals_index(G3_scratch); | |
| 739 __ store_local_long( G3_scratch, Otos_l ); | |
| 740 } | |
| 741 | |
| 742 | |
| 743 void TemplateTable::fstore() { | |
| 744 transition(ftos, vtos); | |
| 745 locals_index(G3_scratch); | |
| 746 __ store_local_float( G3_scratch, Ftos_f ); | |
| 747 } | |
| 748 | |
| 749 | |
| 750 void TemplateTable::dstore() { | |
| 751 transition(dtos, vtos); | |
| 752 locals_index(G3_scratch); | |
| 753 __ store_local_double( G3_scratch, Ftos_d ); | |
| 754 } | |
| 755 | |
| 756 | |
| 757 void TemplateTable::astore() { | |
| 758 transition(vtos, vtos); | |
| 1506 | 759 __ load_ptr(0, Otos_i); |
| 760 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 761 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 762 locals_index(G3_scratch); | |
| 1506 | 763 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 764 } |
| 765 | |
| 766 | |
| 767 void TemplateTable::wide_istore() { | |
| 768 transition(vtos, vtos); | |
| 769 __ pop_i(); | |
| 770 locals_index_wide(G3_scratch); | |
| 771 __ store_local_int( G3_scratch, Otos_i ); | |
| 772 } | |
| 773 | |
| 774 | |
| 775 void TemplateTable::wide_lstore() { | |
| 776 transition(vtos, vtos); | |
| 777 __ pop_l(); | |
| 778 locals_index_wide(G3_scratch); | |
| 779 __ store_local_long( G3_scratch, Otos_l ); | |
| 780 } | |
| 781 | |
| 782 | |
| 783 void TemplateTable::wide_fstore() { | |
| 784 transition(vtos, vtos); | |
| 785 __ pop_f(); | |
| 786 locals_index_wide(G3_scratch); | |
| 787 __ store_local_float( G3_scratch, Ftos_f ); | |
| 788 } | |
| 789 | |
| 790 | |
| 791 void TemplateTable::wide_dstore() { | |
| 792 transition(vtos, vtos); | |
| 793 __ pop_d(); | |
| 794 locals_index_wide(G3_scratch); | |
| 795 __ store_local_double( G3_scratch, Ftos_d ); | |
| 796 } | |
| 797 | |
| 798 | |
| 799 void TemplateTable::wide_astore() { | |
| 800 transition(vtos, vtos); | |
| 1506 | 801 __ load_ptr(0, Otos_i); |
| 802 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 803 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 804 locals_index_wide(G3_scratch); | |
| 1506 | 805 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 806 } |
| 807 | |
| 808 | |
| 809 void TemplateTable::iastore() { | |
| 810 transition(itos, vtos); | |
| 811 __ pop_i(O2); // index | |
| 812 // Otos_i: val | |
| 813 // O3: array | |
| 814 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 815 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
| 816 } | |
| 817 | |
| 818 | |
| 819 void TemplateTable::lastore() { | |
| 820 transition(ltos, vtos); | |
| 821 __ pop_i(O2); // index | |
| 822 // Otos_l: val | |
| 823 // O3: array | |
| 824 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 825 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
| 826 } | |
| 827 | |
| 828 | |
| 829 void TemplateTable::fastore() { | |
| 830 transition(ftos, vtos); | |
| 831 __ pop_i(O2); // index | |
| 832 // Ftos_f: val | |
| 833 // O3: array | |
| 834 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 835 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
| 836 } | |
| 837 | |
| 838 | |
| 839 void TemplateTable::dastore() { | |
| 840 transition(dtos, vtos); | |
| 841 __ pop_i(O2); // index | |
| 842 // Fos_d: val | |
| 843 // O3: array | |
| 844 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 845 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
| 846 } | |
| 847 | |
| 848 | |
| 849 void TemplateTable::aastore() { | |
| 850 Label store_ok, is_null, done; | |
| 851 transition(vtos, vtos); | |
| 852 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 853 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
| 854 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
| 855 // Otos_i: val | |
| 856 // O2: index | |
| 857 // O3: array | |
| 858 __ verify_oop(Otos_i); | |
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859 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
| 0 | 860 |
| 861 // do array store check - check for NULL value first | |
| 3839 | 862 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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863 |
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864 __ load_klass(O3, O4); // get array klass |
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865 __ load_klass(Otos_i, O5); // get value klass |
| 0 | 866 |
| 867 // do fast instanceof cache test | |
| 868 | |
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869 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
| 0 | 870 |
| 871 assert(Otos_i == O0, "just checking"); | |
| 872 | |
| 873 // Otos_i: value | |
| 874 // O1: addr - offset | |
| 875 // O2: index | |
| 876 // O3: array | |
| 877 // O4: array element klass | |
| 878 // O5: value klass | |
| 879 | |
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880 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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881 |
| 0 | 882 // Generate a fast subtype check. Branch to store_ok if no |
| 883 // failure. Throw if failure. | |
| 884 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
| 885 | |
| 886 // Not a subtype; so must throw exception | |
| 887 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
| 888 | |
| 889 // Store is OK. | |
| 890 __ bind(store_ok); | |
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891 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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892 |
| 3839 | 893 __ ba(done); |
| 1506 | 894 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 895 |
| 896 __ bind(is_null); | |
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897 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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898 |
| 0 | 899 __ profile_null_seen(G3_scratch); |
| 1506 | 900 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 901 __ bind(done); |
| 902 } | |
| 903 | |
| 904 | |
| 905 void TemplateTable::bastore() { | |
| 906 transition(itos, vtos); | |
| 907 __ pop_i(O2); // index | |
| 908 // Otos_i: val | |
| 909 // O3: array | |
| 910 __ index_check(O3, O2, 0, G3_scratch, O2); | |
| 911 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
| 912 } | |
| 913 | |
| 914 | |
| 915 void TemplateTable::castore() { | |
| 916 transition(itos, vtos); | |
| 917 __ pop_i(O2); // index | |
| 918 // Otos_i: val | |
| 919 // O3: array | |
| 920 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
| 921 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
| 922 } | |
| 923 | |
| 924 | |
| 925 void TemplateTable::sastore() { | |
| 926 // %%%%% Factor across platform | |
| 927 castore(); | |
| 928 } | |
| 929 | |
| 930 | |
| 931 void TemplateTable::istore(int n) { | |
| 932 transition(itos, vtos); | |
| 933 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 934 } | |
| 935 | |
| 936 | |
| 937 void TemplateTable::lstore(int n) { | |
| 938 transition(ltos, vtos); | |
| 939 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
| 940 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 941 | |
| 942 } | |
| 943 | |
| 944 | |
| 945 void TemplateTable::fstore(int n) { | |
| 946 transition(ftos, vtos); | |
| 947 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
| 948 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 949 } | |
| 950 | |
| 951 | |
| 952 void TemplateTable::dstore(int n) { | |
| 953 transition(dtos, vtos); | |
| 954 FloatRegister src = Ftos_d; | |
| 955 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 956 } | |
| 957 | |
| 958 | |
| 959 void TemplateTable::astore(int n) { | |
| 960 transition(vtos, vtos); | |
| 1506 | 961 __ load_ptr(0, Otos_i); |
| 962 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 963 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 1506 | 964 __ store_local_ptr(n, Otos_i); |
| 0 | 965 } |
| 966 | |
| 967 | |
| 968 void TemplateTable::pop() { | |
| 969 transition(vtos, vtos); | |
| 1506 | 970 __ inc(Lesp, Interpreter::stackElementSize); |
| 0 | 971 } |
| 972 | |
| 973 | |
| 974 void TemplateTable::pop2() { | |
| 975 transition(vtos, vtos); | |
| 1506 | 976 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
| 0 | 977 } |
| 978 | |
| 979 | |
| 980 void TemplateTable::dup() { | |
| 981 transition(vtos, vtos); | |
| 982 // stack: ..., a | |
| 983 // load a and tag | |
| 1506 | 984 __ load_ptr(0, Otos_i); |
| 985 __ push_ptr(Otos_i); | |
| 0 | 986 // stack: ..., a, a |
| 987 } | |
| 988 | |
| 989 | |
| 990 void TemplateTable::dup_x1() { | |
| 991 transition(vtos, vtos); | |
| 992 // stack: ..., a, b | |
| 1506 | 993 __ load_ptr( 1, G3_scratch); // get a |
| 994 __ load_ptr( 0, Otos_l1); // get b | |
| 995 __ store_ptr(1, Otos_l1); // put b | |
| 996 __ store_ptr(0, G3_scratch); // put a - like swap | |
| 997 __ push_ptr(Otos_l1); // push b | |
| 0 | 998 // stack: ..., b, a, b |
| 999 } | |
| 1000 | |
| 1001 | |
| 1002 void TemplateTable::dup_x2() { | |
| 1003 transition(vtos, vtos); | |
| 1004 // stack: ..., a, b, c | |
| 1005 // get c and push on stack, reuse registers | |
| 1506 | 1006 __ load_ptr( 0, G3_scratch); // get c |
| 1007 __ push_ptr(G3_scratch); // push c with tag | |
| 0 | 1008 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
| 1009 // (stack offsets n+1 now) | |
| 1506 | 1010 __ load_ptr( 3, Otos_l1); // get a |
| 1011 __ store_ptr(3, G3_scratch); // put c at 3 | |
| 0 | 1012 // stack: ..., c, b, c, c (a in reg) |
| 1506 | 1013 __ load_ptr( 2, G3_scratch); // get b |
| 1014 __ store_ptr(2, Otos_l1); // put a at 2 | |
| 0 | 1015 // stack: ..., c, a, c, c (b in reg) |
| 1506 | 1016 __ store_ptr(1, G3_scratch); // put b at 1 |
| 0 | 1017 // stack: ..., c, a, b, c |
| 1018 } | |
| 1019 | |
| 1020 | |
| 1021 void TemplateTable::dup2() { | |
| 1022 transition(vtos, vtos); | |
| 1506 | 1023 __ load_ptr(1, G3_scratch); // get a |
| 1024 __ load_ptr(0, Otos_l1); // get b | |
| 1025 __ push_ptr(G3_scratch); // push a | |
| 1026 __ push_ptr(Otos_l1); // push b | |
| 0 | 1027 // stack: ..., a, b, a, b |
| 1028 } | |
| 1029 | |
| 1030 | |
| 1031 void TemplateTable::dup2_x1() { | |
| 1032 transition(vtos, vtos); | |
| 1033 // stack: ..., a, b, c | |
| 1506 | 1034 __ load_ptr( 1, Lscratch); // get b |
| 1035 __ load_ptr( 2, Otos_l1); // get a | |
| 1036 __ store_ptr(2, Lscratch); // put b at a | |
| 0 | 1037 // stack: ..., b, b, c |
| 1506 | 1038 __ load_ptr( 0, G3_scratch); // get c |
| 1039 __ store_ptr(1, G3_scratch); // put c at b | |
| 0 | 1040 // stack: ..., b, c, c |
| 1506 | 1041 __ store_ptr(0, Otos_l1); // put a at c |
| 0 | 1042 // stack: ..., b, c, a |
| 1506 | 1043 __ push_ptr(Lscratch); // push b |
| 1044 __ push_ptr(G3_scratch); // push c | |
| 0 | 1045 // stack: ..., b, c, a, b, c |
| 1046 } | |
| 1047 | |
| 1048 | |
| 1049 // The spec says that these types can be a mixture of category 1 (1 word) | |
| 1050 // types and/or category 2 types (long and doubles) | |
| 1051 void TemplateTable::dup2_x2() { | |
| 1052 transition(vtos, vtos); | |
| 1053 // stack: ..., a, b, c, d | |
| 1506 | 1054 __ load_ptr( 1, Lscratch); // get c |
| 1055 __ load_ptr( 3, Otos_l1); // get a | |
| 1056 __ store_ptr(3, Lscratch); // put c at 3 | |
| 1057 __ store_ptr(1, Otos_l1); // put a at 1 | |
| 0 | 1058 // stack: ..., c, b, a, d |
| 1506 | 1059 __ load_ptr( 2, G3_scratch); // get b |
| 1060 __ load_ptr( 0, Otos_l1); // get d | |
| 1061 __ store_ptr(0, G3_scratch); // put b at 0 | |
| 1062 __ store_ptr(2, Otos_l1); // put d at 2 | |
| 0 | 1063 // stack: ..., c, d, a, b |
| 1506 | 1064 __ push_ptr(Lscratch); // push c |
| 1065 __ push_ptr(Otos_l1); // push d | |
| 0 | 1066 // stack: ..., c, d, a, b, c, d |
| 1067 } | |
| 1068 | |
| 1069 | |
| 1070 void TemplateTable::swap() { | |
| 1071 transition(vtos, vtos); | |
| 1072 // stack: ..., a, b | |
| 1506 | 1073 __ load_ptr( 1, G3_scratch); // get a |
| 1074 __ load_ptr( 0, Otos_l1); // get b | |
| 1075 __ store_ptr(0, G3_scratch); // put b | |
| 1076 __ store_ptr(1, Otos_l1); // put a | |
| 0 | 1077 // stack: ..., b, a |
| 1078 } | |
| 1079 | |
| 1080 | |
| 1081 void TemplateTable::iop2(Operation op) { | |
| 1082 transition(itos, itos); | |
| 1083 __ pop_i(O1); | |
| 1084 switch (op) { | |
| 1085 case add: __ add(O1, Otos_i, Otos_i); break; | |
| 1086 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
| 1087 // %%%%% Mul may not exist: better to call .mul? | |
| 1088 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
| 1506 | 1089 case _and: __ and3(O1, Otos_i, Otos_i); break; |
| 1090 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
| 1091 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
| 0 | 1092 case shl: __ sll(O1, Otos_i, Otos_i); break; |
| 1093 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
| 1094 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
| 1095 default: ShouldNotReachHere(); | |
| 1096 } | |
| 1097 } | |
| 1098 | |
| 1099 | |
| 1100 void TemplateTable::lop2(Operation op) { | |
| 1101 transition(ltos, ltos); | |
| 1102 __ pop_l(O2); | |
| 1103 switch (op) { | |
| 1104 #ifdef _LP64 | |
| 1506 | 1105 case add: __ add(O2, Otos_l, Otos_l); break; |
| 1106 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
| 1107 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
| 1108 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
| 1109 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
| 0 | 1110 #else |
| 1111 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
| 1112 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
| 1506 | 1113 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
| 1114 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
| 1115 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
| 0 | 1116 #endif |
| 1117 default: ShouldNotReachHere(); | |
| 1118 } | |
| 1119 } | |
| 1120 | |
| 1121 | |
| 1122 void TemplateTable::idiv() { | |
| 1123 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
| 1124 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
| 1125 | |
| 1126 transition(itos, itos); | |
| 1127 __ pop_i(O1); // get 1st op | |
| 1128 | |
| 1129 // Y contains upper 32 bits of result, set it to 0 or all ones | |
| 1130 __ wry(G0); | |
| 1131 __ mov(~0, G3_scratch); | |
| 1132 | |
| 1133 __ tst(O1); | |
| 1134 Label neg; | |
| 1135 __ br(Assembler::negative, true, Assembler::pn, neg); | |
| 1136 __ delayed()->wry(G3_scratch); | |
| 1137 __ bind(neg); | |
| 1138 | |
| 1139 Label ok; | |
| 1140 __ tst(Otos_i); | |
| 1141 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
| 1142 | |
| 1143 const int min_int = 0x80000000; | |
| 1144 Label regular; | |
| 1145 __ cmp(Otos_i, -1); | |
| 1146 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
| 1147 #ifdef _LP64 | |
| 1148 // Don't put set in delay slot | |
| 1149 // Set will turn into multiple instructions in 64 bit mode | |
| 1150 __ delayed()->nop(); | |
| 1151 __ set(min_int, G4_scratch); | |
| 1152 #else | |
| 1153 __ delayed()->set(min_int, G4_scratch); | |
| 1154 #endif | |
| 1155 Label done; | |
| 1156 __ cmp(O1, G4_scratch); | |
| 1157 __ br(Assembler::equal, true, Assembler::pt, done); | |
| 1158 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
| 1159 | |
| 1160 __ bind(regular); | |
| 1161 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
| 1162 __ bind(done); | |
| 1163 } | |
| 1164 | |
| 1165 | |
| 1166 void TemplateTable::irem() { | |
| 1167 transition(itos, itos); | |
| 1168 __ mov(Otos_i, O2); // save divisor | |
| 1169 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
| 1170 __ smul(Otos_i, O2, Otos_i); | |
| 1171 __ sub(O1, Otos_i, Otos_i); | |
| 1172 } | |
| 1173 | |
| 1174 | |
| 1175 void TemplateTable::lmul() { | |
| 1176 transition(ltos, ltos); | |
| 1177 __ pop_l(O2); | |
| 1178 #ifdef _LP64 | |
| 1179 __ mulx(Otos_l, O2, Otos_l); | |
| 1180 #else | |
| 1181 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
| 1182 #endif | |
| 1183 | |
| 1184 } | |
| 1185 | |
| 1186 | |
| 1187 void TemplateTable::ldiv() { | |
| 1188 transition(ltos, ltos); | |
| 1189 | |
| 1190 // check for zero | |
| 1191 __ pop_l(O2); | |
| 1192 #ifdef _LP64 | |
| 1193 __ tst(Otos_l); | |
| 1194 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1195 __ sdivx(O2, Otos_l, Otos_l); | |
| 1196 #else | |
| 1197 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1198 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1199 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 1200 #endif | |
| 1201 } | |
| 1202 | |
| 1203 | |
| 1204 void TemplateTable::lrem() { | |
| 1205 transition(ltos, ltos); | |
| 1206 | |
| 1207 // check for zero | |
| 1208 __ pop_l(O2); | |
| 1209 #ifdef _LP64 | |
| 1210 __ tst(Otos_l); | |
| 1211 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1212 __ sdivx(O2, Otos_l, Otos_l2); | |
| 1213 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
| 1214 __ sub (O2, Otos_l2, Otos_l); | |
| 1215 #else | |
| 1216 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1217 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1218 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 1219 #endif | |
| 1220 } | |
| 1221 | |
| 1222 | |
| 1223 void TemplateTable::lshl() { | |
| 1224 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
| 1225 | |
| 1226 __ pop_l(O2); // shift value in O2, O3 | |
| 1227 #ifdef _LP64 | |
| 1228 __ sllx(O2, Otos_i, Otos_l); | |
| 1229 #else | |
| 1230 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1231 #endif | |
| 1232 } | |
| 1233 | |
| 1234 | |
| 1235 void TemplateTable::lshr() { | |
| 1236 transition(itos, ltos); // %%%% see lshl comment | |
| 1237 | |
| 1238 __ pop_l(O2); // shift value in O2, O3 | |
| 1239 #ifdef _LP64 | |
| 1240 __ srax(O2, Otos_i, Otos_l); | |
| 1241 #else | |
| 1242 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1243 #endif | |
| 1244 } | |
| 1245 | |
| 1246 | |
| 1247 | |
| 1248 void TemplateTable::lushr() { | |
| 1249 transition(itos, ltos); // %%%% see lshl comment | |
| 1250 | |
| 1251 __ pop_l(O2); // shift value in O2, O3 | |
| 1252 #ifdef _LP64 | |
| 1253 __ srlx(O2, Otos_i, Otos_l); | |
| 1254 #else | |
| 1255 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1256 #endif | |
| 1257 } | |
| 1258 | |
| 1259 | |
| 1260 void TemplateTable::fop2(Operation op) { | |
| 1261 transition(ftos, ftos); | |
| 1262 switch (op) { | |
| 1263 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1264 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1265 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1266 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1267 case rem: | |
| 1268 assert(Ftos_f == F0, "just checking"); | |
| 1269 #ifdef _LP64 | |
| 1270 // LP64 calling conventions use F1, F3 for passing 2 floats | |
| 1271 __ pop_f(F1); | |
| 1272 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
| 1273 #else | |
| 1274 __ pop_i(O0); | |
| 1275 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
| 1276 __ ld( __ d_tmp, O1 ); | |
| 1277 #endif | |
| 1278 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
| 1279 assert( Ftos_f == F0, "fix this code" ); | |
| 1280 break; | |
| 1281 | |
| 1282 default: ShouldNotReachHere(); | |
| 1283 } | |
| 1284 } | |
| 1285 | |
| 1286 | |
| 1287 void TemplateTable::dop2(Operation op) { | |
| 1288 transition(dtos, dtos); | |
| 1289 switch (op) { | |
| 1290 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1291 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1292 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1293 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1294 case rem: | |
| 1295 #ifdef _LP64 | |
| 1296 // Pass arguments in D0, D2 | |
| 1297 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
| 1298 __ pop_d( F0 ); | |
| 1299 #else | |
| 1300 // Pass arguments in O0O1, O2O3 | |
| 1301 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1302 __ ldd( __ d_tmp, O2 ); | |
| 1303 __ pop_d(Ftos_f); | |
| 1304 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1305 __ ldd( __ d_tmp, O0 ); | |
| 1306 #endif | |
| 1307 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
| 1308 assert( Ftos_d == F0, "fix this code" ); | |
| 1309 break; | |
| 1310 | |
| 1311 default: ShouldNotReachHere(); | |
| 1312 } | |
| 1313 } | |
| 1314 | |
| 1315 | |
| 1316 void TemplateTable::ineg() { | |
| 1317 transition(itos, itos); | |
| 1318 __ neg(Otos_i); | |
| 1319 } | |
| 1320 | |
| 1321 | |
| 1322 void TemplateTable::lneg() { | |
| 1323 transition(ltos, ltos); | |
| 1324 #ifdef _LP64 | |
| 1325 __ sub(G0, Otos_l, Otos_l); | |
| 1326 #else | |
| 1327 __ lneg(Otos_l1, Otos_l2); | |
| 1328 #endif | |
| 1329 } | |
| 1330 | |
| 1331 | |
| 1332 void TemplateTable::fneg() { | |
| 1333 transition(ftos, ftos); | |
| 1334 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
| 1335 } | |
| 1336 | |
| 1337 | |
| 1338 void TemplateTable::dneg() { | |
| 1339 transition(dtos, dtos); | |
| 1340 // v8 has fnegd if source and dest are the same | |
| 1341 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
| 1342 } | |
| 1343 | |
| 1344 | |
| 1345 void TemplateTable::iinc() { | |
| 1346 transition(vtos, vtos); | |
| 1347 locals_index(G3_scratch); | |
| 1348 __ ldsb(Lbcp, 2, O2); // load constant | |
| 1349 __ access_local_int(G3_scratch, Otos_i); | |
| 1350 __ add(Otos_i, O2, Otos_i); | |
| 1506 | 1351 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1352 } |
| 1353 | |
| 1354 | |
| 1355 void TemplateTable::wide_iinc() { | |
| 1356 transition(vtos, vtos); | |
| 1357 locals_index_wide(G3_scratch); | |
| 1358 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
| 1359 __ access_local_int(G3_scratch, Otos_i); | |
| 1360 __ add(Otos_i, O3, Otos_i); | |
| 1506 | 1361 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1362 } |
| 1363 | |
| 1364 | |
| 1365 void TemplateTable::convert() { | |
| 1366 // %%%%% Factor this first part accross platforms | |
| 1367 #ifdef ASSERT | |
| 1368 TosState tos_in = ilgl; | |
| 1369 TosState tos_out = ilgl; | |
| 1370 switch (bytecode()) { | |
| 1371 case Bytecodes::_i2l: // fall through | |
| 1372 case Bytecodes::_i2f: // fall through | |
| 1373 case Bytecodes::_i2d: // fall through | |
| 1374 case Bytecodes::_i2b: // fall through | |
| 1375 case Bytecodes::_i2c: // fall through | |
| 1376 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1377 case Bytecodes::_l2i: // fall through | |
| 1378 case Bytecodes::_l2f: // fall through | |
| 1379 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1380 case Bytecodes::_f2i: // fall through | |
| 1381 case Bytecodes::_f2l: // fall through | |
| 1382 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1383 case Bytecodes::_d2i: // fall through | |
| 1384 case Bytecodes::_d2l: // fall through | |
| 1385 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1386 default : ShouldNotReachHere(); | |
| 1387 } | |
| 1388 switch (bytecode()) { | |
| 1389 case Bytecodes::_l2i: // fall through | |
| 1390 case Bytecodes::_f2i: // fall through | |
| 1391 case Bytecodes::_d2i: // fall through | |
| 1392 case Bytecodes::_i2b: // fall through | |
| 1393 case Bytecodes::_i2c: // fall through | |
| 1394 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1395 case Bytecodes::_i2l: // fall through | |
| 1396 case Bytecodes::_f2l: // fall through | |
| 1397 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1398 case Bytecodes::_i2f: // fall through | |
| 1399 case Bytecodes::_l2f: // fall through | |
| 1400 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1401 case Bytecodes::_i2d: // fall through | |
| 1402 case Bytecodes::_l2d: // fall through | |
| 1403 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1404 default : ShouldNotReachHere(); | |
| 1405 } | |
| 1406 transition(tos_in, tos_out); | |
| 1407 #endif | |
| 1408 | |
| 1409 | |
| 1410 // Conversion | |
| 1411 Label done; | |
| 1412 switch (bytecode()) { | |
| 1413 case Bytecodes::_i2l: | |
| 1414 #ifdef _LP64 | |
| 1415 // Sign extend the 32 bits | |
| 1416 __ sra ( Otos_i, 0, Otos_l ); | |
| 1417 #else | |
| 1418 __ addcc(Otos_i, 0, Otos_l2); | |
| 1419 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
| 1420 __ delayed()->clr(Otos_l1); | |
| 1421 __ set(~0, Otos_l1); | |
| 1422 #endif | |
| 1423 break; | |
| 1424 | |
| 1425 case Bytecodes::_i2f: | |
| 1426 __ st(Otos_i, __ d_tmp ); | |
| 1427 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1428 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
| 1429 break; | |
| 1430 | |
| 1431 case Bytecodes::_i2d: | |
| 1432 __ st(Otos_i, __ d_tmp); | |
| 1433 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1434 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
| 1435 break; | |
| 1436 | |
| 1437 case Bytecodes::_i2b: | |
| 1438 __ sll(Otos_i, 24, Otos_i); | |
| 1439 __ sra(Otos_i, 24, Otos_i); | |
| 1440 break; | |
| 1441 | |
| 1442 case Bytecodes::_i2c: | |
| 1443 __ sll(Otos_i, 16, Otos_i); | |
| 1444 __ srl(Otos_i, 16, Otos_i); | |
| 1445 break; | |
| 1446 | |
| 1447 case Bytecodes::_i2s: | |
| 1448 __ sll(Otos_i, 16, Otos_i); | |
| 1449 __ sra(Otos_i, 16, Otos_i); | |
| 1450 break; | |
| 1451 | |
| 1452 case Bytecodes::_l2i: | |
| 1453 #ifndef _LP64 | |
| 1454 __ mov(Otos_l2, Otos_i); | |
| 1455 #else | |
| 1456 // Sign-extend into the high 32 bits | |
| 1457 __ sra(Otos_l, 0, Otos_i); | |
| 1458 #endif | |
| 1459 break; | |
| 1460 | |
| 1461 case Bytecodes::_l2f: | |
| 1462 case Bytecodes::_l2d: | |
| 1463 __ st_long(Otos_l, __ d_tmp); | |
| 1464 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
| 1465 | |
| 1466 if (VM_Version::v9_instructions_work()) { | |
| 1467 if (bytecode() == Bytecodes::_l2f) { | |
| 1468 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1469 } else { | |
| 1470 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
| 1471 } | |
| 1472 } else { | |
| 1473 __ call_VM_leaf( | |
| 1474 Lscratch, | |
| 1475 bytecode() == Bytecodes::_l2f | |
| 1476 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
| 1477 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
| 1478 ); | |
| 1479 } | |
| 1480 break; | |
| 1481 | |
| 1482 case Bytecodes::_f2i: { | |
| 1483 Label isNaN; | |
| 1484 // result must be 0 if value is NaN; test by comparing value to itself | |
| 1485 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
| 1486 // According to the v8 manual, you have to have a non-fp instruction | |
| 1487 // between fcmp and fb. | |
| 1488 if (!VM_Version::v9_instructions_work()) { | |
| 1489 __ nop(); | |
| 1490 } | |
| 1491 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
| 1492 __ delayed()->clr(Otos_i); // NaN | |
| 1493 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
| 1494 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
| 1495 __ ld(__ d_tmp, Otos_i); | |
| 1496 __ bind(isNaN); | |
| 1497 } | |
| 1498 break; | |
| 1499 | |
| 1500 case Bytecodes::_f2l: | |
| 1501 // must uncache tos | |
| 1502 __ push_f(); | |
| 1503 #ifdef _LP64 | |
| 1504 __ pop_f(F1); | |
| 1505 #else | |
| 1506 __ pop_i(O0); | |
| 1507 #endif | |
| 1508 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
| 1509 break; | |
| 1510 | |
| 1511 case Bytecodes::_f2d: | |
| 1512 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
| 1513 break; | |
| 1514 | |
| 1515 case Bytecodes::_d2i: | |
| 1516 case Bytecodes::_d2l: | |
| 1517 // must uncache tos | |
| 1518 __ push_d(); | |
| 1519 #ifdef _LP64 | |
| 1520 // LP64 calling conventions pass first double arg in D0 | |
| 1521 __ pop_d( Ftos_d ); | |
| 1522 #else | |
| 1523 __ pop_i( O0 ); | |
| 1524 __ pop_i( O1 ); | |
| 1525 #endif | |
| 1526 __ call_VM_leaf(Lscratch, | |
| 1527 bytecode() == Bytecodes::_d2i | |
| 1528 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
| 1529 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
| 1530 break; | |
| 1531 | |
| 1532 case Bytecodes::_d2f: | |
| 1533 if (VM_Version::v9_instructions_work()) { | |
| 1534 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1535 } | |
| 1536 else { | |
| 1537 // must uncache tos | |
| 1538 __ push_d(); | |
| 1539 __ pop_i(O0); | |
| 1540 __ pop_i(O1); | |
| 1541 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
| 1542 } | |
| 1543 break; | |
| 1544 | |
| 1545 default: ShouldNotReachHere(); | |
| 1546 } | |
| 1547 __ bind(done); | |
| 1548 } | |
| 1549 | |
| 1550 | |
| 1551 void TemplateTable::lcmp() { | |
| 1552 transition(ltos, itos); | |
| 1553 | |
| 1554 #ifdef _LP64 | |
| 1555 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
| 1556 __ lcmp( O1, Otos_l, Otos_i ); | |
| 1557 #else | |
| 1558 __ pop_l(O2); // cmp O2,3 to O0,1 | |
| 1559 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
| 1560 #endif | |
| 1561 } | |
| 1562 | |
| 1563 | |
| 1564 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1565 | |
| 1566 if (is_float) __ pop_f(F2); | |
| 1567 else __ pop_d(F2); | |
| 1568 | |
| 1569 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
| 1570 | |
| 1571 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
| 1572 } | |
| 1573 | |
| 1574 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1575 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
| 1576 __ verify_thread(); | |
| 1577 | |
| 1578 const Register O2_bumped_count = O2; | |
| 1579 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
| 1580 | |
| 1581 // get (wide) offset to O1_disp | |
| 1582 const Register O1_disp = O1; | |
| 1583 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
| 1584 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
| 1585 | |
| 1586 // Handle all the JSR stuff here, then exit. | |
| 1587 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1588 // non-JSR normal-branch stuff occurring below. |
| 0 | 1589 if( is_jsr ) { |
| 1590 // compute return address as bci in Otos_i | |
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1591 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1592 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1593 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
| 0 | 1594 |
| 1595 // Bump Lbcp to target of JSR | |
| 1596 __ add(Lbcp, O1_disp, Lbcp); | |
| 1597 // Push returnAddress for "ret" on stack | |
| 1506 | 1598 __ push_ptr(Otos_i); |
| 0 | 1599 // And away we go! |
| 1600 __ dispatch_next(vtos); | |
| 1601 return; | |
| 1602 } | |
| 1603 | |
| 1604 // Normal (non-jsr) branch handling | |
| 1605 | |
| 1606 // Save the current Lbcp | |
| 1607 const Register O0_cur_bcp = O0; | |
| 1608 __ mov( Lbcp, O0_cur_bcp ); | |
| 1609 | |
| 1783 | 1610 |
| 0 | 1611 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
| 1612 if ( increment_invocation_counter_for_backward_branches ) { | |
| 1613 Label Lforward; | |
| 1614 // check branch direction | |
| 1615 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
| 1616 // Bump bytecode pointer by displacement (take the branch) | |
| 1617 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
| 1618 | |
| 1783 | 1619 if (TieredCompilation) { |
| 1620 Label Lno_mdo, Loverflow; | |
| 1621 int increment = InvocationCounter::count_increment; | |
| 1622 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1623 if (ProfileInterpreter) { | |
| 1624 // If no method data exists, go to profile_continue. | |
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1625 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
| 3839 | 1626 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
| 1783 | 1627 |
| 1628 // Increment backedge counter in the MDO | |
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1629 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1630 in_bytes(InvocationCounter::counter_offset())); |
| 1631 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1632 Assembler::notZero, &Lforward); | |
| 3839 | 1633 __ ba_short(Loverflow); |
| 0 | 1634 } |
| 1783 | 1635 |
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1636 // If there's no MDO, increment counter in Method* |
| 1783 | 1637 __ bind(Lno_mdo); |
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1638 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
| 1783 | 1639 in_bytes(InvocationCounter::counter_offset())); |
| 1640 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1641 Assembler::notZero, &Lforward); | |
| 1642 __ bind(Loverflow); | |
| 1643 | |
| 1644 // notify point for loop, pass branch bytecode | |
| 1645 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
| 1646 | |
| 1647 // Was an OSR adapter generated? | |
| 1648 // O0 = osr nmethod | |
| 3839 | 1649 __ br_null_short(O0, Assembler::pn, Lforward); |
| 1783 | 1650 |
| 1651 // Has the nmethod been invalidated already? | |
| 1652 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
| 3839 | 1653 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
| 1783 | 1654 |
| 1655 // migrate the interpreter frame off of the stack | |
| 1656 | |
| 1657 __ mov(G2_thread, L7); | |
| 1658 // save nmethod | |
| 1659 __ mov(O0, L6); | |
| 1660 __ set_last_Java_frame(SP, noreg); | |
| 1661 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
| 1662 __ reset_last_Java_frame(); | |
| 1663 __ mov(L7, G2_thread); | |
| 1664 | |
| 1665 // move OSR nmethod to I1 | |
| 1666 __ mov(L6, I1); | |
| 1667 | |
| 1668 // OSR buffer to I0 | |
| 1669 __ mov(O0, I0); | |
| 1670 | |
| 1671 // remove the interpreter frame | |
| 1672 __ restore(I5_savedSP, 0, SP); | |
| 1673 | |
| 1674 // Jump to the osr code. | |
| 1675 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
| 1676 __ jmp(O2, G0); | |
| 1677 __ delayed()->nop(); | |
| 1678 | |
| 0 | 1679 } else { |
| 1783 | 1680 // Update Backedge branch separately from invocations |
| 1681 const Register G4_invoke_ctr = G4; | |
| 1682 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
| 1683 if (ProfileInterpreter) { | |
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1684 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
| 1783 | 1685 if (UseOnStackReplacement) { |
| 1686 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
| 1687 } | |
| 1688 } else { | |
| 1689 if (UseOnStackReplacement) { | |
| 1690 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
| 1691 } | |
| 0 | 1692 } |
| 1693 } | |
| 1694 | |
| 1695 __ bind(Lforward); | |
| 1696 } else | |
| 1697 // Bump bytecode pointer by displacement (take the branch) | |
| 1698 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
| 1699 | |
| 1700 // continue with bytecode @ target | |
| 1701 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
| 1702 // %%%%% and changing dispatch_next to dispatch_only | |
| 1703 __ dispatch_next(vtos); | |
| 1704 } | |
| 1705 | |
| 1706 | |
| 1707 // Note Condition in argument is TemplateTable::Condition | |
| 1708 // arg scope is within class scope | |
| 1709 | |
| 1710 void TemplateTable::if_0cmp(Condition cc) { | |
| 1711 // no pointers, integer only! | |
| 1712 transition(itos, vtos); | |
| 1713 // assume branch is more often taken than not (loops use backward branches) | |
| 1714 __ cmp( Otos_i, 0); | |
| 1715 __ if_cmp(ccNot(cc), false); | |
| 1716 } | |
| 1717 | |
| 1718 | |
| 1719 void TemplateTable::if_icmp(Condition cc) { | |
| 1720 transition(itos, vtos); | |
| 1721 __ pop_i(O1); | |
| 1722 __ cmp(O1, Otos_i); | |
| 1723 __ if_cmp(ccNot(cc), false); | |
| 1724 } | |
| 1725 | |
| 1726 | |
| 1727 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1728 transition(atos, vtos); | |
| 1729 __ tst(Otos_i); | |
| 1730 __ if_cmp(ccNot(cc), true); | |
| 1731 } | |
| 1732 | |
| 1733 | |
| 1734 void TemplateTable::if_acmp(Condition cc) { | |
| 1735 transition(atos, vtos); | |
| 1736 __ pop_ptr(O1); | |
| 1737 __ verify_oop(O1); | |
| 1738 __ verify_oop(Otos_i); | |
| 1739 __ cmp(O1, Otos_i); | |
| 1740 __ if_cmp(ccNot(cc), true); | |
| 1741 } | |
| 1742 | |
| 1743 | |
| 1744 | |
| 1745 void TemplateTable::ret() { | |
| 1746 transition(vtos, vtos); | |
| 1747 locals_index(G3_scratch); | |
| 1748 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1749 // Otos_i contains the bci, compute the bcp from that | |
| 1750 | |
| 1751 #ifdef _LP64 | |
| 1752 #ifdef ASSERT | |
| 1753 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
| 1754 // the result. The return address (really a BCI) was stored with an | |
| 1755 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
| 1756 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
| 1757 // loaded value. | |
| 1758 { Label zzz ; | |
| 1759 __ set (65536, G3_scratch) ; | |
| 1760 __ cmp (Otos_i, G3_scratch) ; | |
| 1761 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
| 1762 __ delayed()->nop(); | |
| 1763 __ stop("BCI is in the wrong register half?"); | |
| 1764 __ bind (zzz) ; | |
| 1765 } | |
| 1766 #endif | |
| 1767 #endif | |
| 1768 | |
| 1769 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1770 | |
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1771 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1772 __ add(G3_scratch, Otos_i, G3_scratch); |
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1773 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1774 __ dispatch_next(vtos); |
| 1775 } | |
| 1776 | |
| 1777 | |
| 1778 void TemplateTable::wide_ret() { | |
| 1779 transition(vtos, vtos); | |
| 1780 locals_index_wide(G3_scratch); | |
| 1781 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1782 // Otos_i contains the bci, compute the bcp from that | |
| 1783 | |
| 1784 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1785 | |
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1786 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1787 __ add(G3_scratch, Otos_i, G3_scratch); |
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1788 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1789 __ dispatch_next(vtos); |
| 1790 } | |
| 1791 | |
| 1792 | |
| 1793 void TemplateTable::tableswitch() { | |
| 1794 transition(itos, vtos); | |
| 1795 Label default_case, continue_execution; | |
| 1796 | |
| 1797 // align bcp | |
| 1798 __ add(Lbcp, BytesPerInt, O1); | |
| 1799 __ and3(O1, -BytesPerInt, O1); | |
| 1800 // load lo, hi | |
| 1801 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
| 1802 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
| 1803 #ifdef _LP64 | |
| 1804 // Sign extend the 32 bits | |
| 1805 __ sra ( Otos_i, 0, Otos_i ); | |
| 1806 #endif /* _LP64 */ | |
| 1807 | |
| 1808 // check against lo & hi | |
| 1809 __ cmp( Otos_i, O2); | |
| 1810 __ br( Assembler::less, false, Assembler::pn, default_case); | |
| 1811 __ delayed()->cmp( Otos_i, O3 ); | |
| 1812 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
| 1813 // lookup dispatch offset | |
| 1814 __ delayed()->sub(Otos_i, O2, O2); | |
| 1815 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
| 1816 __ sll(O2, LogBytesPerInt, O2); | |
| 1817 __ add(O2, 3 * BytesPerInt, O2); | |
| 3839 | 1818 __ ba(continue_execution); |
| 0 | 1819 __ delayed()->ld(O1, O2, O2); |
| 1820 // handle default | |
| 1821 __ bind(default_case); | |
| 1822 __ profile_switch_default(O3); | |
| 1823 __ ld(O1, 0, O2); // get default offset | |
| 1824 // continue execution | |
| 1825 __ bind(continue_execution); | |
| 1826 __ add(Lbcp, O2, Lbcp); | |
| 1827 __ dispatch_next(vtos); | |
| 1828 } | |
| 1829 | |
| 1830 | |
| 1831 void TemplateTable::lookupswitch() { | |
| 1832 transition(itos, itos); | |
| 1833 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1834 } | |
| 1835 | |
| 1836 void TemplateTable::fast_linearswitch() { | |
| 1837 transition(itos, vtos); | |
| 1838 Label loop_entry, loop, found, continue_execution; | |
| 1839 // align bcp | |
| 1840 __ add(Lbcp, BytesPerInt, O1); | |
| 1841 __ and3(O1, -BytesPerInt, O1); | |
| 1842 // set counter | |
| 1843 __ ld(O1, BytesPerInt, O2); | |
| 1844 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
| 1845 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
| 3839 | 1846 __ ba(loop_entry); |
| 0 | 1847 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
| 1848 | |
| 1849 // table search | |
| 1850 __ bind(loop); | |
| 1851 __ cmp(O4, Otos_i); | |
| 1852 __ br(Assembler::equal, true, Assembler::pn, found); | |
| 1853 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
| 1854 __ inc(O3, 2 * BytesPerInt); | |
| 1855 | |
| 1856 __ bind(loop_entry); | |
| 1857 __ cmp(O2, O3); | |
| 1858 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
| 1859 __ delayed()->ld(O3, 0, O4); | |
| 1860 | |
| 1861 // default case | |
| 1862 __ ld(O1, 0, O4); // get default offset | |
| 1863 if (ProfileInterpreter) { | |
| 1864 __ profile_switch_default(O3); | |
| 3839 | 1865 __ ba_short(continue_execution); |
| 0 | 1866 } |
| 1867 | |
| 1868 // entry found -> get offset | |
| 1869 __ bind(found); | |
| 1870 if (ProfileInterpreter) { | |
| 1871 __ sub(O3, O1, O3); | |
| 1872 __ sub(O3, 2*BytesPerInt, O3); | |
| 1873 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
| 1874 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
| 1875 | |
| 1876 __ bind(continue_execution); | |
| 1877 } | |
| 1878 __ add(Lbcp, O4, Lbcp); | |
| 1879 __ dispatch_next(vtos); | |
| 1880 } | |
| 1881 | |
| 1882 | |
| 1883 void TemplateTable::fast_binaryswitch() { | |
| 1884 transition(itos, vtos); | |
| 1885 // Implementation using the following core algorithm: (copied from Intel) | |
| 1886 // | |
| 1887 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1888 // // Binary search according to "Methodik des Programmierens" by | |
| 1889 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1890 // int i = 0; | |
| 1891 // int j = n; | |
| 1892 // while (i+1 < j) { | |
| 1893 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1894 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1895 // // where a stands for the array and assuming that the (inexisting) | |
| 1896 // // element a[n] is infinitely big. | |
| 1897 // int h = (i + j) >> 1; | |
| 1898 // // i < h < j | |
| 1899 // if (key < array[h].fast_match()) { | |
| 1900 // j = h; | |
| 1901 // } else { | |
| 1902 // i = h; | |
| 1903 // } | |
| 1904 // } | |
| 1905 // // R: a[i] <= key < a[i+1] or Q | |
| 1906 // // (i.e., if key is within array, i is the correct index) | |
| 1907 // return i; | |
| 1908 // } | |
| 1909 | |
| 1910 // register allocation | |
| 1911 assert(Otos_i == O0, "alias checking"); | |
| 1912 const Register Rkey = Otos_i; // already set (tosca) | |
| 1913 const Register Rarray = O1; | |
| 1914 const Register Ri = O2; | |
| 1915 const Register Rj = O3; | |
| 1916 const Register Rh = O4; | |
| 1917 const Register Rscratch = O5; | |
| 1918 | |
| 1919 const int log_entry_size = 3; | |
| 1920 const int entry_size = 1 << log_entry_size; | |
| 1921 | |
| 1922 Label found; | |
| 1923 // Find Array start | |
| 1924 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
| 1925 __ and3(Rarray, -BytesPerInt, Rarray); | |
| 1926 // initialize i & j (in delay slot) | |
| 1927 __ clr( Ri ); | |
| 1928 | |
| 1929 // and start | |
| 1930 Label entry; | |
| 3839 | 1931 __ ba(entry); |
| 0 | 1932 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
| 1933 // (Rj is already in the native byte-ordering.) | |
| 1934 | |
| 1935 // binary search loop | |
| 1936 { Label loop; | |
| 1937 __ bind( loop ); | |
| 1938 // int h = (i + j) >> 1; | |
| 1939 __ sra( Rh, 1, Rh ); | |
| 1940 // if (key < array[h].fast_match()) { | |
| 1941 // j = h; | |
| 1942 // } else { | |
| 1943 // i = h; | |
| 1944 // } | |
| 1945 __ sll( Rh, log_entry_size, Rscratch ); | |
| 1946 __ ld( Rarray, Rscratch, Rscratch ); | |
| 1947 // (Rscratch is already in the native byte-ordering.) | |
| 1948 __ cmp( Rkey, Rscratch ); | |
| 1949 if ( VM_Version::v9_instructions_work() ) { | |
| 1950 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
| 1951 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
| 1952 } | |
| 1953 else { | |
| 1954 Label end_of_if; | |
| 1955 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
| 1956 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
| 1957 __ mov( Rh, Ri ); // else i = h | |
| 1958 __ bind(end_of_if); // } | |
| 1959 } | |
| 1960 | |
| 1961 // while (i+1 < j) | |
| 1962 __ bind( entry ); | |
| 1963 __ add( Ri, 1, Rscratch ); | |
| 1964 __ cmp(Rscratch, Rj); | |
| 1965 __ br( Assembler::less, true, Assembler::pt, loop ); | |
| 1966 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
| 1967 } | |
| 1968 | |
| 1969 // end of binary search, result index is i (must check again!) | |
| 1970 Label default_case; | |
| 1971 Label continue_execution; | |
| 1972 if (ProfileInterpreter) { | |
| 1973 __ mov( Ri, Rh ); // Save index in i for profiling | |
| 1974 } | |
| 1975 __ sll( Ri, log_entry_size, Ri ); | |
| 1976 __ ld( Rarray, Ri, Rscratch ); | |
| 1977 // (Rscratch is already in the native byte-ordering.) | |
| 1978 __ cmp( Rkey, Rscratch ); | |
| 1979 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
| 1980 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
| 1981 | |
| 1982 // entry found -> j = offset | |
| 1983 __ inc( Ri, BytesPerInt ); | |
| 1984 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
| 1985 __ ld( Rarray, Ri, Rj ); | |
| 1986 // (Rj is already in the native byte-ordering.) | |
| 1987 | |
| 1988 if (ProfileInterpreter) { | |
| 3839 | 1989 __ ba_short(continue_execution); |
| 0 | 1990 } |
| 1991 | |
| 1992 __ bind(default_case); // fall through (if not profiling) | |
| 1993 __ profile_switch_default(Ri); | |
| 1994 | |
| 1995 __ bind(continue_execution); | |
| 1996 __ add( Lbcp, Rj, Lbcp ); | |
| 1997 __ dispatch_next( vtos ); | |
| 1998 } | |
| 1999 | |
| 2000 | |
| 2001 void TemplateTable::_return(TosState state) { | |
| 2002 transition(state, state); | |
| 2003 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
| 2004 | |
| 2005 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2006 assert(state == vtos, "only valid state"); | |
| 2007 __ mov(G0, G3_scratch); | |
| 2008 __ access_local_ptr(G3_scratch, Otos_i); | |
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2009 __ load_klass(Otos_i, O2); |
| 0 | 2010 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2011 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
| 0 | 2012 __ andcc(G3, O2, G0); |
| 2013 Label skip_register_finalizer; | |
| 2014 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
| 2015 __ delayed()->nop(); | |
| 2016 | |
| 2017 // Call out to do finalizer registration | |
| 2018 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
| 2019 | |
| 2020 __ bind(skip_register_finalizer); | |
| 2021 } | |
| 2022 | |
| 2023 __ remove_activation(state, /* throw_monitor_exception */ true); | |
| 2024 | |
| 2025 // The caller's SP was adjusted upon method entry to accomodate | |
| 2026 // the callee's non-argument locals. Undo that adjustment. | |
| 2027 __ ret(); // return to caller | |
| 2028 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 2029 } | |
| 2030 | |
| 2031 | |
| 2032 // ---------------------------------------------------------------------------- | |
| 2033 // Volatile variables demand their effects be made known to all CPU's in | |
| 2034 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2035 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2036 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2037 // reorder volatile references, the hardware also must not reorder them). | |
| 2038 // | |
| 2039 // According to the new Java Memory Model (JMM): | |
| 2040 // (1) All volatiles are serialized wrt to each other. | |
| 2041 // ALSO reads & writes act as aquire & release, so: | |
| 2042 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2043 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2044 // that happen before the volatile read to float down below it. | |
| 2045 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2046 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2047 // non-volatile memory refs that happen after the volatile write to float up | |
| 2048 // before it. | |
| 2049 // | |
| 2050 // We only put in barriers around volatile refs (they are expensive), not | |
| 2051 // _between_ memory refs (that would require us to track the flavor of the | |
| 2052 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2053 // before volatile stores and after volatile loads. These nearly cover | |
| 2054 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2055 // case is placed after volatile-stores although it could just as well go | |
| 2056 // before volatile-loads. | |
| 2057 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
| 2058 // Helper function to insert a is-volatile test and memory barrier | |
| 2059 // All current sparc implementations run in TSO, needing only StoreLoad | |
| 2060 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
| 2061 __ membar( order_constraint ); | |
| 2062 } | |
| 2063 | |
| 2064 // ---------------------------------------------------------------------------- | |
| 1565 | 2065 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2066 Register Rcache, | |
| 2067 Register index, | |
| 2068 size_t index_size) { | |
| 0 | 2069 // Depends on cpCacheOop layout! |
| 2070 Label resolved; | |
| 2071 | |
| 1565 | 2072 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2073 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2074 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2075 __ br(Assembler::equal, false, Assembler::pt, resolved); |
| 1503 | 2076 __ delayed()->set((int)bytecode(), O1); |
| 0 | 2077 |
| 2078 address entry; | |
| 2079 switch (bytecode()) { | |
| 2080 case Bytecodes::_getstatic : // fall through | |
| 2081 case Bytecodes::_putstatic : // fall through | |
| 2082 case Bytecodes::_getfield : // fall through | |
| 2083 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
| 2084 case Bytecodes::_invokevirtual : // fall through | |
| 2085 case Bytecodes::_invokespecial : // fall through | |
| 2086 case Bytecodes::_invokestatic : // fall through | |
| 2087 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2088 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
| 1503 | 2089 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2090 default: |
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2091 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2092 break; |
| 0 | 2093 } |
| 2094 // first time invocation - must resolve first | |
| 2095 __ call_VM(noreg, entry, O1); | |
| 2096 // Update registers with resolved info | |
| 1565 | 2097 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2098 __ bind(resolved); |
| 2099 } | |
| 2100 | |
| 2101 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2102 Register method, |
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2103 Register itable_index, |
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2104 Register flags, |
| 0 | 2105 bool is_invokevirtual, |
| 1565 | 2106 bool is_invokevfinal, |
| 2107 bool is_invokedynamic) { | |
| 0 | 2108 // Uses both G3_scratch and G4_scratch |
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2109 Register cache = G3_scratch; |
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2110 Register index = G4_scratch; |
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2111 assert_different_registers(cache, method, itable_index); |
| 0 | 2112 |
| 2113 // determine constant pool cache field offsets | |
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2114 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2115 const int method_offset = in_bytes( |
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2116 ConstantPoolCache::base_offset() + |
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2117 ((byte_no == f2_byte) |
| 0 | 2118 ? ConstantPoolCacheEntry::f2_offset() |
| 2119 : ConstantPoolCacheEntry::f1_offset() | |
| 2120 ) | |
| 2121 ); | |
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2122 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2123 ConstantPoolCacheEntry::flags_offset()); |
| 2124 // access constant pool cache fields | |
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2125 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2126 ConstantPoolCacheEntry::f2_offset()); |
| 2127 | |
| 2128 if (is_invokevfinal) { | |
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2129 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2130 __ ld_ptr(Address(cache, method_offset), method); |
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2131 } else { |
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2132 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2133 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2134 __ ld_ptr(Address(cache, method_offset), method); |
| 0 | 2135 } |
| 2136 | |
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2137 if (itable_index != noreg) { |
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2138 // pick up itable or appendix index from f2 also: |
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2139 __ ld_ptr(Address(cache, index_offset), itable_index); |
| 0 | 2140 } |
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2141 __ ld_ptr(Address(cache, flags_offset), flags); |
| 0 | 2142 } |
| 2143 | |
| 2144 // The Rcache register must be set before call | |
| 2145 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
| 2146 Register Rcache, | |
| 2147 Register index, | |
| 2148 Register Roffset, | |
| 2149 Register Rflags, | |
| 2150 bool is_static) { | |
| 2151 assert_different_registers(Rcache, Rflags, Roffset); | |
| 2152 | |
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2153 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2154 |
| 727 | 2155 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 2156 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
| 0 | 2157 if (is_static) { |
| 727 | 2158 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2159 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2160 __ ld_ptr( Robj, mirror_offset, Robj); |
| 0 | 2161 } |
| 2162 } | |
| 2163 | |
| 2164 // The registers Rcache and index expected to be set before call. | |
| 2165 // Correct values of the Rcache and index registers are preserved. | |
| 2166 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
| 2167 Register index, | |
| 2168 bool is_static, | |
| 2169 bool has_tos) { | |
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2170 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2171 |
| 2172 if (JvmtiExport::can_post_field_access()) { | |
| 2173 // Check to see if a field access watch has been set before we take | |
| 2174 // the time to call into the VM. | |
| 2175 Label Label1; | |
| 2176 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2177 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
| 0 | 2178 __ load_contents(get_field_access_count_addr, G1_scratch); |
| 3839 | 2179 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
| 0 | 2180 |
| 2181 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
| 2182 | |
| 2183 if (is_static) { | |
| 2184 __ clr(Otos_i); | |
| 2185 } else { | |
| 2186 if (has_tos) { | |
| 2187 // save object pointer before call_VM() clobbers it | |
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2188 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
| 0 | 2189 } else { |
| 2190 // Load top of stack (do not pop the value off the stack); | |
| 2191 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 2192 } | |
| 2193 __ verify_oop(Otos_i); | |
| 2194 } | |
| 2195 // Otos_i: object pointer or NULL if static | |
| 2196 // Rcache: cache entry pointer | |
| 2197 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2198 Otos_i, Rcache); | |
| 2199 if (!is_static && has_tos) { | |
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2200 __ pop_ptr(Otos_i); // restore object pointer |
| 0 | 2201 __ verify_oop(Otos_i); |
| 2202 } | |
| 2203 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2204 __ bind(Label1); | |
| 2205 } | |
| 2206 } | |
| 2207 | |
| 2208 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2209 transition(vtos, vtos); | |
| 2210 | |
| 2211 Register Rcache = G3_scratch; | |
| 2212 Register index = G4_scratch; | |
| 2213 Register Rclass = Rcache; | |
| 2214 Register Roffset= G4_scratch; | |
| 2215 Register Rflags = G1_scratch; | |
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2216 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2217 |
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2218 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2219 jvmti_post_field_access(Rcache, index, is_static, false); |
| 2220 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2221 | |
| 2222 if (!is_static) { | |
| 2223 pop_and_check_object(Rclass); | |
| 2224 } else { | |
| 2225 __ verify_oop(Rclass); | |
| 2226 } | |
| 2227 | |
| 2228 Label exit; | |
| 2229 | |
| 2230 Assembler::Membar_mask_bits membar_bits = | |
| 2231 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2232 | |
| 2233 if (__ membar_has_effect(membar_bits)) { | |
| 2234 // Get volatile flag | |
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2235 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2236 __ and3(Rflags, Lscratch, Lscratch); |
| 2237 } | |
| 2238 | |
| 2239 Label checkVolatile; | |
| 2240 | |
| 2241 // compute field type | |
| 2242 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2243 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2244 // Make sure we don't need to mask Rflags after the above shift |
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2245 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2246 |
| 2247 // Check atos before itos for getstatic, more likely (in Queens at least) | |
| 2248 __ cmp(Rflags, atos); | |
| 2249 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2250 __ delayed() ->cmp(Rflags, itos); | |
| 2251 | |
| 2252 // atos | |
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2253 __ load_heap_oop(Rclass, Roffset, Otos_i); |
| 0 | 2254 __ verify_oop(Otos_i); |
| 2255 __ push(atos); | |
| 2256 if (!is_static) { | |
| 2257 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
| 2258 } | |
| 3839 | 2259 __ ba(checkVolatile); |
| 0 | 2260 __ delayed()->tst(Lscratch); |
| 2261 | |
| 2262 __ bind(notObj); | |
| 2263 | |
| 2264 // cmp(Rflags, itos); | |
| 2265 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2266 __ delayed() ->cmp(Rflags, ltos); | |
| 2267 | |
| 2268 // itos | |
| 2269 __ ld(Rclass, Roffset, Otos_i); | |
| 2270 __ push(itos); | |
| 2271 if (!is_static) { | |
| 2272 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
| 2273 } | |
| 3839 | 2274 __ ba(checkVolatile); |
| 0 | 2275 __ delayed()->tst(Lscratch); |
| 2276 | |
| 2277 __ bind(notInt); | |
| 2278 | |
| 2279 // cmp(Rflags, ltos); | |
| 2280 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2281 __ delayed() ->cmp(Rflags, btos); | |
| 2282 | |
| 2283 // ltos | |
| 2284 // load must be atomic | |
| 2285 __ ld_long(Rclass, Roffset, Otos_l); | |
| 2286 __ push(ltos); | |
| 2287 if (!is_static) { | |
| 2288 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
| 2289 } | |
| 3839 | 2290 __ ba(checkVolatile); |
| 0 | 2291 __ delayed()->tst(Lscratch); |
| 2292 | |
| 2293 __ bind(notLong); | |
| 2294 | |
| 2295 // cmp(Rflags, btos); | |
| 2296 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2297 __ delayed() ->cmp(Rflags, ctos); | |
| 2298 | |
| 2299 // btos | |
| 2300 __ ldsb(Rclass, Roffset, Otos_i); | |
| 2301 __ push(itos); | |
| 2302 if (!is_static) { | |
| 2303 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
| 2304 } | |
| 3839 | 2305 __ ba(checkVolatile); |
| 0 | 2306 __ delayed()->tst(Lscratch); |
| 2307 | |
| 2308 __ bind(notByte); | |
| 2309 | |
| 2310 // cmp(Rflags, ctos); | |
| 2311 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2312 __ delayed() ->cmp(Rflags, stos); | |
| 2313 | |
| 2314 // ctos | |
| 2315 __ lduh(Rclass, Roffset, Otos_i); | |
| 2316 __ push(itos); | |
| 2317 if (!is_static) { | |
| 2318 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
| 2319 } | |
| 3839 | 2320 __ ba(checkVolatile); |
| 0 | 2321 __ delayed()->tst(Lscratch); |
| 2322 | |
| 2323 __ bind(notChar); | |
| 2324 | |
| 2325 // cmp(Rflags, stos); | |
| 2326 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2327 __ delayed() ->cmp(Rflags, ftos); | |
| 2328 | |
| 2329 // stos | |
| 2330 __ ldsh(Rclass, Roffset, Otos_i); | |
| 2331 __ push(itos); | |
| 2332 if (!is_static) { | |
| 2333 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
| 2334 } | |
| 3839 | 2335 __ ba(checkVolatile); |
| 0 | 2336 __ delayed()->tst(Lscratch); |
| 2337 | |
| 2338 __ bind(notShort); | |
| 2339 | |
| 2340 | |
| 2341 // cmp(Rflags, ftos); | |
| 2342 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
| 2343 __ delayed() ->tst(Lscratch); | |
| 2344 | |
| 2345 // ftos | |
| 2346 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
| 2347 __ push(ftos); | |
| 2348 if (!is_static) { | |
| 2349 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
| 2350 } | |
| 3839 | 2351 __ ba(checkVolatile); |
| 0 | 2352 __ delayed()->tst(Lscratch); |
| 2353 | |
| 2354 __ bind(notFloat); | |
| 2355 | |
| 2356 | |
| 2357 // dtos | |
| 2358 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
| 2359 __ push(dtos); | |
| 2360 if (!is_static) { | |
| 2361 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
| 2362 } | |
| 2363 | |
| 2364 __ bind(checkVolatile); | |
| 2365 if (__ membar_has_effect(membar_bits)) { | |
| 2366 // __ tst(Lscratch); executed in delay slot | |
| 2367 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2368 __ delayed()->nop(); | |
| 2369 volatile_barrier(membar_bits); | |
| 2370 } | |
| 2371 | |
| 2372 __ bind(exit); | |
| 2373 } | |
| 2374 | |
| 2375 | |
| 2376 void TemplateTable::getfield(int byte_no) { | |
| 2377 getfield_or_static(byte_no, false); | |
| 2378 } | |
| 2379 | |
| 2380 void TemplateTable::getstatic(int byte_no) { | |
| 2381 getfield_or_static(byte_no, true); | |
| 2382 } | |
| 2383 | |
| 2384 | |
| 2385 void TemplateTable::fast_accessfield(TosState state) { | |
| 2386 transition(atos, state); | |
| 2387 Register Rcache = G3_scratch; | |
| 2388 Register index = G4_scratch; | |
| 2389 Register Roffset = G4_scratch; | |
| 2390 Register Rflags = Rcache; | |
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2391 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2392 |
| 2393 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2394 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
| 2395 | |
| 727 | 2396 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2397 |
| 2398 __ null_check(Otos_i); | |
| 2399 __ verify_oop(Otos_i); | |
| 2400 | |
| 2401 Label exit; | |
| 2402 | |
| 2403 Assembler::Membar_mask_bits membar_bits = | |
| 2404 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2405 if (__ membar_has_effect(membar_bits)) { | |
| 2406 // Get volatile flag | |
| 727 | 2407 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2408 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2409 } |
| 2410 | |
| 2411 switch (bytecode()) { | |
| 2412 case Bytecodes::_fast_bgetfield: | |
| 2413 __ ldsb(Otos_i, Roffset, Otos_i); | |
| 2414 break; | |
| 2415 case Bytecodes::_fast_cgetfield: | |
| 2416 __ lduh(Otos_i, Roffset, Otos_i); | |
| 2417 break; | |
| 2418 case Bytecodes::_fast_sgetfield: | |
| 2419 __ ldsh(Otos_i, Roffset, Otos_i); | |
| 2420 break; | |
| 2421 case Bytecodes::_fast_igetfield: | |
| 2422 __ ld(Otos_i, Roffset, Otos_i); | |
| 2423 break; | |
| 2424 case Bytecodes::_fast_lgetfield: | |
| 2425 __ ld_long(Otos_i, Roffset, Otos_l); | |
| 2426 break; | |
| 2427 case Bytecodes::_fast_fgetfield: | |
| 2428 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
| 2429 break; | |
| 2430 case Bytecodes::_fast_dgetfield: | |
| 2431 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
| 2432 break; | |
| 2433 case Bytecodes::_fast_agetfield: | |
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2434 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
| 0 | 2435 break; |
| 2436 default: | |
| 2437 ShouldNotReachHere(); | |
| 2438 } | |
| 2439 | |
| 2440 if (__ membar_has_effect(membar_bits)) { | |
| 2441 __ btst(Lscratch, Rflags); | |
| 2442 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2443 __ delayed()->nop(); | |
| 2444 volatile_barrier(membar_bits); | |
| 2445 __ bind(exit); | |
| 2446 } | |
| 2447 | |
| 2448 if (state == atos) { | |
| 2449 __ verify_oop(Otos_i); // does not blow flags! | |
| 2450 } | |
| 2451 } | |
| 2452 | |
| 2453 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2454 if (JvmtiExport::can_post_field_modification()) { | |
| 2455 // Check to see if a field modification watch has been set before we take | |
| 2456 // the time to call into the VM. | |
| 2457 Label done; | |
| 727 | 2458 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2459 __ load_contents(get_field_modification_count_addr, G4_scratch); |
| 3839 | 2460 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
| 0 | 2461 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
| 2462 __ verify_oop(G4_scratch); | |
| 2463 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
| 2464 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
| 2465 // Save tos values before call_VM() clobbers them. Since we have | |
| 2466 // to do it for every data type, we use the saved values as the | |
| 2467 // jvalue object. | |
| 2468 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
| 2469 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
| 2470 case Bytecodes::_fast_bputfield: // fall through | |
| 2471 case Bytecodes::_fast_sputfield: // fall through | |
| 2472 case Bytecodes::_fast_cputfield: // fall through | |
| 2473 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
| 2474 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
| 2475 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
| 2476 // get words in right order for use as jvalue object | |
| 2477 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
| 2478 } | |
| 2479 // setup pointer to jvalue object | |
| 2480 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
| 2481 // G4_scratch: object pointer | |
| 2482 // G1_scratch: cache entry pointer | |
| 2483 // G3_scratch: jvalue object on the stack | |
| 2484 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
| 2485 switch (bytecode()) { // restore tos values | |
| 2486 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
| 2487 case Bytecodes::_fast_bputfield: // fall through | |
| 2488 case Bytecodes::_fast_sputfield: // fall through | |
| 2489 case Bytecodes::_fast_cputfield: // fall through | |
| 2490 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
| 2491 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
| 2492 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
| 2493 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
| 2494 } | |
| 2495 __ bind(done); | |
| 2496 } | |
| 2497 } | |
| 2498 | |
| 2499 // The registers Rcache and index expected to be set before call. | |
| 2500 // The function may destroy various registers, just not the Rcache and index registers. | |
| 2501 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2502 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2503 |
| 2504 if (JvmtiExport::can_post_field_modification()) { | |
| 2505 // Check to see if a field modification watch has been set before we take | |
| 2506 // the time to call into the VM. | |
| 2507 Label Label1; | |
| 2508 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2509 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2510 __ load_contents(get_field_modification_count_addr, G1_scratch); |
| 3839 | 2511 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
| 0 | 2512 |
| 2513 // The Rcache and index registers have been already set. | |
| 2514 // This allows to eliminate this call but the Rcache and index | |
| 2515 // registers must be correspondingly used after this line. | |
| 2516 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
| 2517 | |
| 2518 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
| 2519 if (is_static) { | |
| 2520 // Life is simple. Null out the object pointer. | |
| 2521 __ clr(G4_scratch); | |
| 2522 } else { | |
| 2523 Register Rflags = G1_scratch; | |
| 2524 // Life is harder. The stack holds the value on top, followed by the | |
| 2525 // object. We don't know the size of the value, though; it could be | |
| 2526 // one or two words depending on its type. As a result, we must find | |
| 2527 // the type to determine where the object is. | |
| 2528 | |
| 2529 Label two_word, valsizeknown; | |
| 727 | 2530 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2531 __ mov(Lesp, G4_scratch); |
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2532 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2533 // Make sure we don't need to mask Rflags after the above shift |
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2534 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2535 __ cmp(Rflags, ltos); |
| 2536 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2537 __ delayed()->cmp(Rflags, dtos); | |
| 2538 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2539 __ delayed()->nop(); | |
| 2540 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
| 3839 | 2541 __ ba_short(valsizeknown); |
| 0 | 2542 __ bind(two_word); |
| 2543 | |
| 2544 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
| 2545 | |
| 2546 __ bind(valsizeknown); | |
| 2547 // setup object pointer | |
| 2548 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
| 2549 __ verify_oop(G4_scratch); | |
| 2550 } | |
| 2551 // setup pointer to jvalue object | |
| 2552 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
| 2553 // G4_scratch: object pointer or NULL if static | |
| 2554 // G3_scratch: cache entry pointer | |
| 2555 // G1_scratch: jvalue object on the stack | |
| 2556 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2557 G4_scratch, G3_scratch, G1_scratch); | |
| 2558 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2559 __ bind(Label1); | |
| 2560 } | |
| 2561 } | |
| 2562 | |
| 2563 void TemplateTable::pop_and_check_object(Register r) { | |
| 2564 __ pop_ptr(r); | |
| 2565 __ null_check(r); // for field access must check obj. | |
| 2566 __ verify_oop(r); | |
| 2567 } | |
| 2568 | |
| 2569 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2570 transition(vtos, vtos); | |
| 2571 Register Rcache = G3_scratch; | |
| 2572 Register index = G4_scratch; | |
| 2573 Register Rclass = Rcache; | |
| 2574 Register Roffset= G4_scratch; | |
| 2575 Register Rflags = G1_scratch; | |
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2576 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2577 |
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2578 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2579 jvmti_post_field_mod(Rcache, index, is_static); |
| 2580 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2581 | |
| 2582 Assembler::Membar_mask_bits read_bits = | |
| 2583 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2584 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2585 | |
| 2586 Label notVolatile, checkVolatile, exit; | |
| 2587 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2588 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2589 __ and3(Rflags, Lscratch, Lscratch); |
| 2590 | |
| 2591 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2592 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2593 volatile_barrier(read_bits); |
| 2594 __ bind(notVolatile); | |
| 2595 } | |
| 2596 } | |
| 2597 | |
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2598 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2599 // Make sure we don't need to mask Rflags after the above shift |
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2600 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2601 |
| 2602 // compute field type | |
| 2603 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
| 2604 | |
| 2605 if (is_static) { | |
| 2606 // putstatic with object type most likely, check that first | |
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2607 __ cmp(Rflags, atos); |
| 0 | 2608 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2609 __ delayed()->cmp(Rflags, itos); |
| 0 | 2610 |
| 2611 // atos | |
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2612 { |
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2613 __ pop_ptr(); |
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2614 __ verify_oop(Otos_i); |
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2615 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2616 __ ba(checkVolatile); |
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2617 __ delayed()->tst(Lscratch); |
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2618 } |
| 0 | 2619 |
| 2620 __ bind(notObj); | |
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2621 // cmp(Rflags, itos); |
| 0 | 2622 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2623 __ delayed()->cmp(Rflags, btos); |
| 0 | 2624 |
| 2625 // itos | |
|
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2626 { |
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2627 __ pop_i(); |
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2628 __ st(Otos_i, Rclass, Roffset); |
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2629 __ ba(checkVolatile); |
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2630 __ delayed()->tst(Lscratch); |
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2631 } |
| 0 | 2632 |
| 2633 __ bind(notInt); | |
| 2634 } else { | |
| 2635 // putfield with int type most likely, check that first | |
|
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2636 __ cmp(Rflags, itos); |
| 0 | 2637 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2638 __ delayed()->cmp(Rflags, atos); |
| 0 | 2639 |
| 2640 // itos | |
|
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2641 { |
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2642 __ pop_i(); |
|
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2643 pop_and_check_object(Rclass); |
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2644 __ st(Otos_i, Rclass, Roffset); |
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2645 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2646 __ ba(checkVolatile); |
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2647 __ delayed()->tst(Lscratch); |
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2648 } |
| 0 | 2649 |
| 2650 __ bind(notInt); | |
|
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2651 // cmp(Rflags, atos); |
| 0 | 2652 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
|
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2653 __ delayed()->cmp(Rflags, btos); |
| 0 | 2654 |
| 2655 // atos | |
|
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2656 { |
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2657 __ pop_ptr(); |
|
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2658 pop_and_check_object(Rclass); |
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2659 __ verify_oop(Otos_i); |
|
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2660 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2661 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2662 __ ba(checkVolatile); |
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2663 __ delayed()->tst(Lscratch); |
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2664 } |
| 0 | 2665 |
| 2666 __ bind(notObj); | |
| 2667 } | |
| 2668 | |
|
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2669 // cmp(Rflags, btos); |
| 0 | 2670 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
|
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2671 __ delayed()->cmp(Rflags, ltos); |
| 0 | 2672 |
| 2673 // btos | |
|
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2674 { |
|
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2675 __ pop_i(); |
|
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2676 if (!is_static) pop_and_check_object(Rclass); |
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2677 __ stb(Otos_i, Rclass, Roffset); |
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2678 if (!is_static) { |
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2679 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
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2680 } |
|
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|
2681 __ ba(checkVolatile); |
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2682 __ delayed()->tst(Lscratch); |
| 0 | 2683 } |
| 2684 | |
| 2685 __ bind(notByte); | |
|
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2686 // cmp(Rflags, ltos); |
| 0 | 2687 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
|
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2688 __ delayed()->cmp(Rflags, ctos); |
| 0 | 2689 |
| 2690 // ltos | |
|
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|
2691 { |
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2692 __ pop_l(); |
|
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|
2693 if (!is_static) pop_and_check_object(Rclass); |
|
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2694 __ st_long(Otos_l, Rclass, Roffset); |
|
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2695 if (!is_static) { |
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2696 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2697 } |
|
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2698 __ ba(checkVolatile); |
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2699 __ delayed()->tst(Lscratch); |
| 0 | 2700 } |
| 2701 | |
| 2702 __ bind(notLong); | |
|
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2703 // cmp(Rflags, ctos); |
| 0 | 2704 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
|
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2705 __ delayed()->cmp(Rflags, stos); |
| 0 | 2706 |
| 2707 // ctos (char) | |
|
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2708 { |
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2709 __ pop_i(); |
|
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2710 if (!is_static) pop_and_check_object(Rclass); |
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2711 __ sth(Otos_i, Rclass, Roffset); |
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2712 if (!is_static) { |
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2713 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
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2714 } |
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2715 __ ba(checkVolatile); |
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2716 __ delayed()->tst(Lscratch); |
| 0 | 2717 } |
| 2718 | |
| 2719 __ bind(notChar); | |
|
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2720 // cmp(Rflags, stos); |
| 0 | 2721 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
|
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2722 __ delayed()->cmp(Rflags, ftos); |
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2723 |
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2724 // stos (short) |
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2725 { |
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2726 __ pop_i(); |
|
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2727 if (!is_static) pop_and_check_object(Rclass); |
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2728 __ sth(Otos_i, Rclass, Roffset); |
|
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2729 if (!is_static) { |
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2730 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
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2731 } |
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|
2732 __ ba(checkVolatile); |
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|
2733 __ delayed()->tst(Lscratch); |
| 0 | 2734 } |
| 2735 | |
| 2736 __ bind(notShort); | |
|
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2737 // cmp(Rflags, ftos); |
| 0 | 2738 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
| 2739 __ delayed()->nop(); | |
| 2740 | |
| 2741 // ftos | |
|
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2742 { |
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|
2743 __ pop_f(); |
|
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|
2744 if (!is_static) pop_and_check_object(Rclass); |
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2745 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
|
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2746 if (!is_static) { |
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2747 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
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2748 } |
|
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|
2749 __ ba(checkVolatile); |
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|
2750 __ delayed()->tst(Lscratch); |
| 0 | 2751 } |
| 2752 | |
| 2753 __ bind(notFloat); | |
| 2754 | |
| 2755 // dtos | |
|
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2756 { |
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2757 __ pop_d(); |
|
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|
2758 if (!is_static) pop_and_check_object(Rclass); |
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2759 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
|
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2760 if (!is_static) { |
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2761 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2762 } |
| 0 | 2763 } |
| 2764 | |
| 2765 __ bind(checkVolatile); | |
| 2766 __ tst(Lscratch); | |
| 2767 | |
| 2768 if (__ membar_has_effect(write_bits)) { | |
| 2769 // __ tst(Lscratch); in delay slot | |
| 2770 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2771 __ delayed()->nop(); | |
| 2772 volatile_barrier(Assembler::StoreLoad); | |
| 2773 __ bind(exit); | |
| 2774 } | |
| 2775 } | |
| 2776 | |
| 2777 void TemplateTable::fast_storefield(TosState state) { | |
| 2778 transition(state, vtos); | |
| 2779 Register Rcache = G3_scratch; | |
| 2780 Register Rclass = Rcache; | |
| 2781 Register Roffset= G4_scratch; | |
| 2782 Register Rflags = G1_scratch; | |
|
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2783 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2784 |
| 2785 jvmti_post_fast_field_mod(); | |
| 2786 | |
| 2787 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
| 2788 | |
| 2789 Assembler::Membar_mask_bits read_bits = | |
| 2790 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2791 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2792 | |
| 2793 Label notVolatile, checkVolatile, exit; | |
| 2794 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 727 | 2795 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
|
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2796 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2797 __ and3(Rflags, Lscratch, Lscratch); |
| 2798 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2799 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2800 volatile_barrier(read_bits); |
| 2801 __ bind(notVolatile); | |
| 2802 } | |
| 2803 } | |
| 2804 | |
| 727 | 2805 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2806 pop_and_check_object(Rclass); |
| 2807 | |
| 2808 switch (bytecode()) { | |
| 2809 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
| 2810 case Bytecodes::_fast_cputfield: /* fall through */ | |
| 2811 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
| 2812 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
| 2813 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
| 2814 case Bytecodes::_fast_fputfield: | |
| 2815 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2816 break; | |
| 2817 case Bytecodes::_fast_dputfield: | |
| 2818 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2819 break; | |
| 2820 case Bytecodes::_fast_aputfield: | |
|
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2821 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
| 0 | 2822 break; |
| 2823 default: | |
| 2824 ShouldNotReachHere(); | |
| 2825 } | |
| 2826 | |
| 2827 if (__ membar_has_effect(write_bits)) { | |
| 3839 | 2828 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
| 0 | 2829 volatile_barrier(Assembler::StoreLoad); |
| 2830 __ bind(exit); | |
| 2831 } | |
| 2832 } | |
| 2833 | |
| 2834 | |
| 2835 void TemplateTable::putfield(int byte_no) { | |
| 2836 putfield_or_static(byte_no, false); | |
| 2837 } | |
| 2838 | |
| 2839 void TemplateTable::putstatic(int byte_no) { | |
| 2840 putfield_or_static(byte_no, true); | |
| 2841 } | |
| 2842 | |
| 2843 | |
| 2844 void TemplateTable::fast_xaccess(TosState state) { | |
| 2845 transition(vtos, state); | |
| 2846 Register Rcache = G3_scratch; | |
| 2847 Register Roffset = G4_scratch; | |
| 2848 Register Rflags = G4_scratch; | |
| 2849 Register Rreceiver = Lscratch; | |
| 2850 | |
| 1506 | 2851 __ ld_ptr(Llocals, 0, Rreceiver); |
| 0 | 2852 |
| 2853 // access constant pool cache (is resolved) | |
| 2854 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
|
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2855 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2856 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
| 2857 | |
| 2858 __ verify_oop(Rreceiver); | |
| 2859 __ null_check(Rreceiver); | |
| 2860 if (state == atos) { | |
|
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2861 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
| 0 | 2862 } else if (state == itos) { |
| 2863 __ ld (Rreceiver, Roffset, Otos_i) ; | |
| 2864 } else if (state == ftos) { | |
| 2865 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
| 2866 } else { | |
| 2867 ShouldNotReachHere(); | |
| 2868 } | |
| 2869 | |
| 2870 Assembler::Membar_mask_bits membar_bits = | |
| 2871 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2872 if (__ membar_has_effect(membar_bits)) { | |
| 2873 | |
| 2874 // Get is_volatile value in Rflags and check if membar is needed | |
|
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2875 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2876 |
| 2877 // Test volatile | |
| 2878 Label notVolatile; | |
|
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2879 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2880 __ btst(Rflags, Lscratch); |
| 2881 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2882 __ delayed()->nop(); | |
| 2883 volatile_barrier(membar_bits); | |
| 2884 __ bind(notVolatile); | |
| 2885 } | |
| 2886 | |
| 2887 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
| 2888 __ sub(Lbcp, 1, Lbcp); | |
| 2889 } | |
| 2890 | |
| 2891 //---------------------------------------------------------------------------------------------------- | |
| 2892 // Calls | |
| 2893 | |
| 2894 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2895 // implemented elsewhere | |
| 2896 ShouldNotReachHere(); | |
| 2897 } | |
| 2898 | |
|
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2899 void TemplateTable::prepare_invoke(int byte_no, |
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2900 Register method, // linked method (or i-klass) |
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2901 Register ra, // return address |
|
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2902 Register index, // itable index, MethodType, etc. |
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2903 Register recv, // if caller wants to see it |
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2904 Register flags // if caller wants to test it |
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2905 ) { |
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2906 // determine flags |
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2907 const Bytecodes::Code code = bytecode(); |
|
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2908 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2909 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2910 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2911 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2912 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2913 const bool load_receiver = (recv != noreg); |
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2914 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2915 assert(recv == noreg || recv == O0, ""); |
|
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2916 assert(flags == noreg || flags == O1, ""); |
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2917 |
|
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2918 // setup registers & access constant pool cache |
|
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2919 if (recv == noreg) recv = O0; |
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2920 if (flags == noreg) flags = O1; |
|
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2921 const Register temp = O2; |
|
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2922 assert_different_registers(method, ra, index, recv, flags, temp); |
|
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2923 |
|
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2924 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
|
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2925 |
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2926 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2927 |
|
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2928 // maybe push appendix to arguments |
|
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2929 if (is_invokedynamic || is_invokehandle) { |
|
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2930 Label L_no_push; |
|
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2931 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
|
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2932 __ btst(flags, temp); |
|
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2933 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
|
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2934 __ delayed()->nop(); |
|
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2935 // Push the appendix as a trailing parameter. |
|
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2936 // This must be done before we get the receiver, |
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|
2937 // since the parameter_size includes it. |
|
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2938 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2939 __ load_resolved_reference_at_index(temp, index); |
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2940 __ verify_oop(temp); |
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2941 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
|
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2942 __ bind(L_no_push); |
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2943 } |
|
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|
2944 |
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2945 // load receiver if needed (after appendix is pushed so parameter size is correct) |
|
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2946 if (load_receiver) { |
|
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2947 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
|
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2948 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
|
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2949 __ verify_oop(recv); |
|
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|
2950 } |
|
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2951 |
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2952 // compute return type |
|
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2953 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
|
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2954 // Make sure we don't need to mask flags after the above shift |
|
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2955 ConstantPoolCacheEntry::verify_tos_state_shift(); |
|
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|
2956 // load return address |
|
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|
2957 { |
|
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2958 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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2959 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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2960 (address)Interpreter::return_3_addrs_by_index_table(); |
|
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2961 AddressLiteral table(table_addr); |
|
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2962 __ set(table, temp); |
|
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2963 __ sll(ra, LogBytesPerWord, ra); |
|
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2964 __ ld_ptr(Address(temp, ra), ra); |
|
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|
2965 } |
|
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|
2966 } |
|
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|
2967 |
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|
2968 |
| 0 | 2969 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
| 2970 Register Rtemp = G4_scratch; | |
| 2971 Register Rcall = Rindex; | |
| 2972 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 2973 | |
|
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2974 // get target Method* & entry point |
|
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|
2975 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
| 0 | 2976 __ call_from_interpreter(Rcall, Gargs, Rret); |
| 2977 } | |
| 2978 | |
| 2979 void TemplateTable::invokevirtual(int byte_no) { | |
| 2980 transition(vtos, vtos); | |
| 1565 | 2981 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2982 |
| 2983 Register Rscratch = G3_scratch; | |
|
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2984 Register Rtemp = G4_scratch; |
|
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2985 Register Rret = Lscratch; |
|
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|
2986 Register O0_recv = O0; |
| 0 | 2987 Label notFinal; |
| 2988 | |
| 1565 | 2989 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
| 0 | 2990 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2991 | |
| 2992 // Check for vfinal | |
|
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2993 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
| 0 | 2994 __ btst(Rret, G4_scratch); |
| 2995 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 2996 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
| 2997 | |
| 2998 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
| 2999 | |
| 3000 invokevfinal_helper(Rscratch, Rret); | |
| 3001 | |
| 3002 __ bind(notFinal); | |
| 3003 | |
| 3004 __ mov(G5_method, Rscratch); // better scratch register | |
|
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3005 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
|
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|
3006 // receiver is in O0_recv |
|
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|
3007 __ verify_oop(O0_recv); |
| 0 | 3008 |
| 3009 // get return address | |
| 727 | 3010 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3011 __ set(table, Rtemp); | |
|
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3012 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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|
3013 // Make sure we don't need to mask Rret after the above shift |
|
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|
3014 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3015 __ sll(Rret, LogBytesPerWord, Rret); |
| 3016 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3017 | |
| 3018 // get receiver klass | |
|
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3019 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
|
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|
3020 __ load_klass(O0_recv, O0_recv); |
|
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|
3021 __ verify_klass_ptr(O0_recv); |
|
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3022 |
|
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3023 __ profile_virtual_call(O0_recv, O4); |
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|
3024 |
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|
3025 generate_vtable_call(O0_recv, Rscratch, Rret); |
| 0 | 3026 } |
| 3027 | |
| 3028 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3029 transition(vtos, vtos); | |
| 1565 | 3030 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3031 |
| 3032 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
| 1565 | 3033 /*is_invokevfinal*/true, false); |
| 0 | 3034 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3035 invokevfinal_helper(G3_scratch, Lscratch); | |
| 3036 } | |
| 3037 | |
| 3038 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
| 3039 Register Rtemp = G4_scratch; | |
| 3040 | |
| 3041 // Load receiver from stack slot | |
|
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|
3042 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
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|
3043 __ lduh(G4_scratch, in_bytes(ConstMethod::size_of_parameters_offset()), G4_scratch); |
| 0 | 3044 __ load_receiver(G4_scratch, O0); |
| 3045 | |
| 3046 // receiver NULL check | |
| 3047 __ null_check(O0); | |
| 3048 | |
| 3049 __ profile_final_call(O4); | |
| 3050 | |
| 3051 // get return address | |
| 727 | 3052 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3053 __ set(table, Rtemp); | |
|
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|
3054 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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|
3055 // Make sure we don't need to mask Rret after the above shift |
|
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|
3056 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3057 __ sll(Rret, LogBytesPerWord, Rret); |
| 3058 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3059 | |
| 3060 | |
| 3061 // do the call | |
| 3062 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3063 } | |
| 3064 | |
|
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|
3065 |
| 0 | 3066 void TemplateTable::invokespecial(int byte_no) { |
| 3067 transition(vtos, vtos); | |
| 1565 | 3068 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3069 |
|
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3070 const Register Rret = Lscratch; |
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3071 const Register O0_recv = O0; |
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3072 const Register Rscratch = G3_scratch; |
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|
3073 |
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|
3074 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
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3075 __ null_check(O0_recv); |
| 0 | 3076 |
| 3077 // do the call | |
|
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3078 __ profile_call(O4); |
| 0 | 3079 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3080 } | |
| 3081 | |
|
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3082 |
| 0 | 3083 void TemplateTable::invokestatic(int byte_no) { |
| 3084 transition(vtos, vtos); | |
| 1565 | 3085 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3086 |
|
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3087 const Register Rret = Lscratch; |
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3088 const Register Rscratch = G3_scratch; |
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|
3089 |
|
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|
3090 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
| 0 | 3091 |
| 3092 // do the call | |
|
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|
3093 __ profile_call(O4); |
| 0 | 3094 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3095 } | |
| 3096 | |
|
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3097 void TemplateTable::invokeinterface_object_method(Register RKlass, |
| 0 | 3098 Register Rcall, |
| 3099 Register Rret, | |
| 3100 Register Rflags) { | |
| 3101 Register Rscratch = G4_scratch; | |
| 3102 Register Rindex = Lscratch; | |
| 3103 | |
| 3104 assert_different_registers(Rscratch, Rindex, Rret); | |
| 3105 | |
| 3106 Label notFinal; | |
| 3107 | |
| 3108 // Check for vfinal | |
|
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3109 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
| 0 | 3110 __ btst(Rflags, Rscratch); |
| 3111 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3112 __ delayed()->nop(); | |
| 3113 | |
| 3114 __ profile_final_call(O4); | |
| 3115 | |
|
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3116 // do the call - the index (f2) contains the Method* |
| 0 | 3117 assert_different_registers(G5_method, Gargs, Rcall); |
| 3118 __ mov(Rindex, G5_method); | |
| 3119 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3120 __ bind(notFinal); | |
| 3121 | |
|
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3122 __ profile_virtual_call(RKlass, O4); |
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3123 generate_vtable_call(RKlass, Rindex, Rret); |
| 0 | 3124 } |
| 3125 | |
| 3126 | |
| 3127 void TemplateTable::invokeinterface(int byte_no) { | |
| 3128 transition(vtos, vtos); | |
| 1565 | 3129 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3130 |
|
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|
3131 const Register Rinterface = G1_scratch; |
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3132 const Register Rret = G3_scratch; |
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3133 const Register Rindex = Lscratch; |
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3134 const Register O0_recv = O0; |
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3135 const Register O1_flags = O1; |
|
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3136 const Register O2_Klass = O2; |
|
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3137 const Register Rscratch = G4_scratch; |
| 0 | 3138 assert_different_registers(Rscratch, G5_method); |
| 3139 | |
|
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3140 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
| 0 | 3141 |
| 3142 // get receiver klass | |
|
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3143 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
|
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3144 __ load_klass(O0_recv, O2_Klass); |
| 0 | 3145 |
| 3146 // Special case of invokeinterface called for virtual method of | |
| 3147 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3148 // This code isn't produced by javac, but could be produced by | |
| 3149 // another compliant java compiler. | |
| 3150 Label notMethod; | |
|
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|
3151 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
|
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|
3152 __ btst(O1_flags, Rscratch); |
| 0 | 3153 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
| 3154 __ delayed()->nop(); | |
| 3155 | |
|
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3156 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
| 0 | 3157 |
| 3158 __ bind(notMethod); | |
| 3159 | |
|
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3160 __ profile_virtual_call(O2_Klass, O4); |
| 0 | 3161 |
| 3162 // | |
| 3163 // find entry point to call | |
| 3164 // | |
| 3165 | |
| 3166 // compute start of first itableOffsetEntry (which is at end of vtable) | |
|
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3167 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
| 0 | 3168 Label search; |
|
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|
3169 Register Rtemp = O1_flags; |
|
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|
3170 |
|
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|
3171 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
| 0 | 3172 if (align_object_offset(1) > 1) { |
| 3173 __ round_to(Rtemp, align_object_offset(1)); | |
| 3174 } | |
| 3175 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
| 3176 if (Assembler::is_simm13(base)) { | |
| 3177 __ add(Rtemp, base, Rtemp); | |
| 3178 } else { | |
| 3179 __ set(base, Rscratch); | |
| 3180 __ add(Rscratch, Rtemp, Rtemp); | |
| 3181 } | |
|
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|
3182 __ add(O2_Klass, Rtemp, Rscratch); |
| 0 | 3183 |
| 3184 __ bind(search); | |
| 3185 | |
| 3186 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
| 3187 { | |
| 3188 Label ok; | |
| 3189 | |
| 3190 // Check that entry is non-null. Null entries are probably a bytecode | |
| 605 | 3191 // problem. If the interface isn't implemented by the receiver class, |
| 0 | 3192 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
| 3193 // this too but that's only if the entry isn't already resolved, so we | |
| 3194 // need to check again. | |
| 3839 | 3195 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
| 0 | 3196 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
| 3197 __ should_not_reach_here(); | |
| 3198 __ bind(ok); | |
| 3199 } | |
| 3200 | |
| 3201 __ cmp(Rinterface, Rtemp); | |
| 3202 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
| 3203 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
| 3204 | |
| 3205 // entry found and Rscratch points to it | |
| 3206 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
| 3207 | |
| 3208 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
| 3209 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
| 3210 __ add(Rscratch, Rindex, Rscratch); | |
|
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|
3211 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
| 0 | 3212 |
| 3213 // Check for abstract method error. | |
| 3214 { | |
| 3215 Label ok; | |
| 3839 | 3216 __ br_notnull_short(G5_method, Assembler::pt, ok); |
| 0 | 3217 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
| 3218 __ should_not_reach_here(); | |
| 3219 __ bind(ok); | |
| 3220 } | |
| 3221 | |
| 3222 Register Rcall = Rinterface; | |
| 3223 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 3224 | |
| 3225 __ call_from_interpreter(Rcall, Gargs, Rret); | |
|
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|
3226 } |
|
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|
3227 |
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|
3228 void TemplateTable::invokehandle(int byte_no) { |
|
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|
3229 transition(vtos, vtos); |
|
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3230 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3231 |
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|
3232 if (!EnableInvokeDynamic) { |
|
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3233 // rewriter does not generate this bytecode |
|
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3234 __ should_not_reach_here(); |
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|
3235 return; |
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|
3236 } |
|
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|
3237 |
|
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|
3238 const Register Rret = Lscratch; |
|
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3239 const Register G4_mtype = G4_scratch; |
|
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3240 const Register O0_recv = O0; |
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3241 const Register Rscratch = G3_scratch; |
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3242 |
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|
3243 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
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3244 __ null_check(O0_recv); |
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3245 |
|
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3246 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
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3247 // G5: MH.invokeExact_MT method (from f2) |
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3248 |
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3249 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
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|
3250 |
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|
3251 // do the call |
|
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3252 __ verify_oop(G4_mtype); |
|
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3253 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
|
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3254 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 0 | 3255 } |
| 3256 | |
| 3257 | |
|
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diff
changeset
|
3258 void TemplateTable::invokedynamic(int byte_no) { |
|
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6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
3259 transition(vtos, vtos); |
|
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6964458: Reimplement class meta-data storage to use native memory
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|
3260 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3261 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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605
diff
changeset
|
3262 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3263 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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605
diff
changeset
|
3264 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3265 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
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605
diff
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|
3266 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
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6655646: dynamic languages need dynamically linked call sites
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605
diff
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|
3267 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
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jrose
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605
diff
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|
3268 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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605
diff
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|
3269 __ should_not_reach_here(); |
|
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6655646: dynamic languages need dynamically linked call sites
jrose
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diff
changeset
|
3270 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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605
diff
changeset
|
3271 } |
|
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6655646: dynamic languages need dynamically linked call sites
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diff
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|
3272 |
|
6266
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4771
diff
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|
3273 const Register Rret = Lscratch; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3274 const Register G4_callsite = G4_scratch; |
|
1d7922586cf6
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twisti
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diff
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|
3275 const Register Rscratch = G3_scratch; |
|
1d7922586cf6
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diff
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|
3276 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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4771
diff
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|
3277 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3278 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
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6740
diff
changeset
|
3279 // G4: CallSite object (from cpool->resolved_references[f1]) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
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|
3280 // G5: MH.linkToCallSite method (from f2) |
|
6266
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|
3281 |
|
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4771
diff
changeset
|
3282 // Note: G4_callsite is already pushed by prepare_invoke |
|
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4771
diff
changeset
|
3283 |
|
1d7922586cf6
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4771
diff
changeset
|
3284 // %%% should make a type profile for any invokedynamic that takes a ref argument |
| 1503 | 3285 // profile this call |
| 3286 __ profile_call(O4); | |
| 3287 | |
|
6266
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diff
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|
3288 // do the call |
|
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|
3289 __ verify_oop(G4_callsite); |
|
6266
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diff
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|
3290 __ call_from_interpreter(Rscratch, Gargs, Rret); |
|
726
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|
3291 } |
|
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|
3292 |
|
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|
3293 |
| 0 | 3294 //---------------------------------------------------------------------------------------------------- |
| 3295 // Allocation | |
| 3296 | |
| 3297 void TemplateTable::_new() { | |
| 3298 transition(vtos, atos); | |
| 3299 | |
| 3300 Label slow_case; | |
| 3301 Label done; | |
| 3302 Label initialize_header; | |
| 3303 Label initialize_object; // including clearing the fields | |
| 3304 | |
| 3305 Register RallocatedObject = Otos_i; | |
| 3306 Register RinstanceKlass = O1; | |
| 3307 Register Roffset = O3; | |
| 3308 Register Rscratch = O4; | |
| 3309 | |
| 3310 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3311 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
| 3312 // make sure the class we're about to instantiate has been resolved | |
|
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|
3313 // This is done before loading InstanceKlass to be consistent with the order |
|
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|
3314 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
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|
3315 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3316 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3317 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3318 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3319 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
|
6725
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coleenp
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|
3320 // get InstanceKlass |
| 0 | 3321 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
|
6725
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diff
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|
3322 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3323 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
| 3324 | |
| 3325 // make sure klass is fully initialized: | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
3326 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
|
da91efe96a93
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diff
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|
3327 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
| 0 | 3328 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
|
4762
069ab3f976d3
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stefank
parents:
3892
diff
changeset
|
3329 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3330 |
|
6725
da91efe96a93
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|
3331 // get instance_size in InstanceKlass (already aligned) |
|
4762
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stefank
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3892
diff
changeset
|
3332 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3333 |
| 3334 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
| 3335 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
| 3336 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
| 3337 __ delayed()->nop(); | |
| 3338 | |
| 3339 // allocate the instance | |
| 3340 // 1) Try to allocate in the TLAB | |
| 3341 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
| 3342 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3343 // (creates a new TLAB, etc.) | |
| 3344 | |
| 3345 const bool allow_shared_alloc = | |
| 3346 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3347 | |
| 3348 if(UseTLAB) { | |
| 3349 Register RoldTopValue = RallocatedObject; | |
| 3892 | 3350 Register RtlabWasteLimitValue = G3_scratch; |
| 0 | 3351 Register RnewTopValue = G1_scratch; |
| 3352 Register RendValue = Rscratch; | |
| 3353 Register RfreeValue = RnewTopValue; | |
| 3354 | |
| 3355 // check if we can allocate in the TLAB | |
| 3356 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
| 3357 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
| 3358 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3359 | |
| 3360 // if there is enough space, we do not CAS and do not clear | |
| 3361 __ cmp(RnewTopValue, RendValue); | |
| 3362 if(ZeroTLAB) { | |
| 3363 // the fields have already been cleared | |
| 3364 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
| 3365 } else { | |
| 3366 // initialize both the header and fields | |
| 3367 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
| 3368 } | |
| 3369 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
| 3370 | |
| 3371 if (allow_shared_alloc) { | |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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parents:
1972
diff
changeset
|
3372 // Check if tlab should be discarded (refill_waste_limit >= free) |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3373 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3374 __ sub(RendValue, RoldTopValue, RfreeValue); |
| 0 | 3375 #ifdef _LP64 |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3376 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3377 #else |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3378 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3379 #endif |
| 3839 | 3380 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3381 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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parents:
1972
diff
changeset
|
3382 // increment waste limit to prevent getting stuck on this slow path |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3383 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3384 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
| 0 | 3385 } else { |
| 3386 // No allocation in the shared eden. | |
| 3839 | 3387 __ ba_short(slow_case); |
| 0 | 3388 } |
| 3389 } | |
| 3390 | |
| 3391 // Allocation in the shared Eden | |
| 3392 if (allow_shared_alloc) { | |
| 3393 Register RoldTopValue = G1_scratch; | |
| 3394 Register RtopAddr = G3_scratch; | |
| 3395 Register RnewTopValue = RallocatedObject; | |
| 3396 Register RendValue = Rscratch; | |
| 3397 | |
| 3398 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
| 3399 | |
| 3400 Label retry; | |
| 3401 __ bind(retry); | |
| 3402 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
| 3403 __ ld_ptr(RendValue, 0, RendValue); | |
| 3404 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
| 3405 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3406 | |
| 3407 // RnewTopValue contains the top address after the new object | |
| 3408 // has been allocated. | |
| 3839 | 3409 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
| 0 | 3410 |
| 3411 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
| 3412 VM_Version::v9_instructions_work() ? NULL : | |
| 3413 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
| 3414 | |
| 3415 // if someone beat us on the allocation, try again, otherwise continue | |
| 3839 | 3416 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3417 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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parents:
1972
diff
changeset
|
3418 // bump total bytes allocated by this thread |
|
2127
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
phh
parents:
2100
diff
changeset
|
3419 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
|
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
phh
parents:
2100
diff
changeset
|
3420 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
| 0 | 3421 } |
| 3422 | |
| 3423 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3424 // clear object fields | |
| 3425 __ bind(initialize_object); | |
| 3426 __ deccc(Roffset, sizeof(oopDesc)); | |
| 3427 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
| 3428 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
| 3429 | |
| 3430 // initialize remaining object fields | |
| 3892 | 3431 if (UseBlockZeroing) { |
| 3432 // Use BIS for zeroing | |
| 3433 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
| 3434 } else { | |
| 3435 Label loop; | |
| 0 | 3436 __ subcc(Roffset, wordSize, Roffset); |
| 3437 __ bind(loop); | |
| 3438 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
| 3439 __ st_ptr(G0, G3_scratch, Roffset); | |
| 3440 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
| 3441 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
| 3442 } | |
| 3839 | 3443 __ ba_short(initialize_header); |
| 0 | 3444 } |
| 3445 | |
| 3446 // slow case | |
| 3447 __ bind(slow_case); | |
| 3448 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3449 __ get_constant_pool(O1); | |
| 3450 | |
| 3451 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
| 3452 | |
| 3839 | 3453 __ ba_short(done); |
| 0 | 3454 |
| 3455 // Initialize the header: mark, klass | |
| 3456 __ bind(initialize_header); | |
| 3457 | |
| 3458 if (UseBiasedLocking) { | |
|
4762
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3892
diff
changeset
|
3459 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
| 0 | 3460 } else { |
| 3461 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
| 3462 } | |
| 3463 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
|
167
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
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113
diff
changeset
|
3464 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
|
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diff
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|
3465 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
| 0 | 3466 |
| 3467 { | |
| 3468 SkipIfEqual skip_if( | |
| 3469 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
| 3470 // Trigger dtrace event | |
| 3471 __ push(atos); | |
| 3472 __ call_VM_leaf(noreg, | |
| 3473 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
| 3474 __ pop(atos); | |
| 3475 } | |
| 3476 | |
| 3477 // continue | |
| 3478 __ bind(done); | |
| 3479 } | |
| 3480 | |
| 3481 | |
| 3482 | |
| 3483 void TemplateTable::newarray() { | |
| 3484 transition(itos, atos); | |
| 3485 __ ldub(Lbcp, 1, O1); | |
| 3486 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
| 3487 } | |
| 3488 | |
| 3489 | |
| 3490 void TemplateTable::anewarray() { | |
| 3491 transition(itos, atos); | |
| 3492 __ get_constant_pool(O1); | |
| 3493 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3494 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
| 3495 } | |
| 3496 | |
| 3497 | |
| 3498 void TemplateTable::arraylength() { | |
| 3499 transition(atos, itos); | |
| 3500 Label ok; | |
| 3501 __ verify_oop(Otos_i); | |
| 3502 __ tst(Otos_i); | |
| 3503 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
| 3504 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
| 3505 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3506 } | |
| 3507 | |
| 3508 | |
| 3509 void TemplateTable::checkcast() { | |
| 3510 transition(atos, atos); | |
| 3511 Label done, is_null, quicked, cast_ok, resolved; | |
| 3512 Register Roffset = G1_scratch; | |
| 3513 Register RobjKlass = O5; | |
| 3514 Register RspecifiedKlass = O4; | |
| 3515 | |
| 3516 // Check for casting a NULL | |
| 3839 | 3517 __ br_null_short(Otos_i, Assembler::pn, is_null); |
| 0 | 3518 |
| 3519 // Get value klass in RobjKlass | |
|
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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0
diff
changeset
|
3520 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3521 |
| 3522 // Get constant pool tag | |
| 3523 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3524 | |
| 3525 // See if the checkcast has been quickened | |
| 3526 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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diff
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|
3527 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3528 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3529 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3530 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3531 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3532 | |
| 3533 __ push_ptr(); // save receiver for result, and for GC | |
|
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3534 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3535 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3536 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3537 | |
| 3839 | 3538 __ ba_short(resolved); |
| 0 | 3539 |
| 3540 // Extract target class from constant pool | |
| 3541 __ bind(quicked); | |
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3542 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3543 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
| 3544 __ bind(resolved); | |
|
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3545 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3546 |
| 3547 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3548 // failure. Throw exception if failure. | |
| 3549 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
| 3550 | |
| 3551 // Not a subtype; so must throw exception | |
| 3552 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
| 3553 | |
| 3554 __ bind(cast_ok); | |
| 3555 | |
| 3556 if (ProfileInterpreter) { | |
| 3839 | 3557 __ ba_short(done); |
| 0 | 3558 } |
| 3559 __ bind(is_null); | |
| 3560 __ profile_null_seen(G3_scratch); | |
| 3561 __ bind(done); | |
| 3562 } | |
| 3563 | |
| 3564 | |
| 3565 void TemplateTable::instanceof() { | |
| 3566 Label done, is_null, quicked, resolved; | |
| 3567 transition(atos, itos); | |
| 3568 Register Roffset = G1_scratch; | |
| 3569 Register RobjKlass = O5; | |
| 3570 Register RspecifiedKlass = O4; | |
| 3571 | |
| 3572 // Check for casting a NULL | |
| 3839 | 3573 __ br_null_short(Otos_i, Assembler::pt, is_null); |
| 0 | 3574 |
| 3575 // Get value klass in RobjKlass | |
|
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3576 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3577 |
| 3578 // Get constant pool tag | |
| 3579 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3580 | |
| 3581 // See if the checkcast has been quickened | |
| 3582 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3583 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3584 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3585 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3586 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3587 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3588 | |
| 3589 __ push_ptr(); // save receiver for result, and for GC | |
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3590 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3591 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3592 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3593 | |
| 3839 | 3594 __ ba_short(resolved); |
| 0 | 3595 |
| 3596 // Extract target class from constant pool | |
| 3597 __ bind(quicked); | |
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3598 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3599 __ get_constant_pool(Lscratch); |
| 3600 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3601 __ bind(resolved); | |
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3602 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3603 |
| 3604 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3605 // failure. Return 0 if failure. | |
| 3606 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
| 3607 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
| 3608 // Not a subtype; return 0; | |
| 3609 __ clr( Otos_i ); | |
| 3610 | |
| 3611 if (ProfileInterpreter) { | |
| 3839 | 3612 __ ba_short(done); |
| 0 | 3613 } |
| 3614 __ bind(is_null); | |
| 3615 __ profile_null_seen(G3_scratch); | |
| 3616 __ bind(done); | |
| 3617 } | |
| 3618 | |
| 3619 void TemplateTable::_breakpoint() { | |
| 3620 | |
| 3621 // Note: We get here even if we are single stepping.. | |
| 3622 // jbug inists on setting breakpoints at every bytecode | |
| 3623 // even if we are in single step mode. | |
| 3624 | |
| 3625 transition(vtos, vtos); | |
| 3626 // get the unpatched byte code | |
| 3627 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
| 3628 __ mov(O0, Lbyte_code); | |
| 3629 | |
| 3630 // post the breakpoint event | |
| 3631 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
| 3632 | |
| 3633 // complete the execution of original bytecode | |
| 3634 __ dispatch_normal(vtos); | |
| 3635 } | |
| 3636 | |
| 3637 | |
| 3638 //---------------------------------------------------------------------------------------------------- | |
| 3639 // Exceptions | |
| 3640 | |
| 3641 void TemplateTable::athrow() { | |
| 3642 transition(atos, vtos); | |
| 3643 | |
| 3644 // This works because exception is cached in Otos_i which is same as O0, | |
| 3645 // which is same as what throw_exception_entry_expects | |
| 3646 assert(Otos_i == Oexception, "see explanation above"); | |
| 3647 | |
| 3648 __ verify_oop(Otos_i); | |
| 3649 __ null_check(Otos_i); | |
| 3650 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
| 3651 } | |
| 3652 | |
| 3653 | |
| 3654 //---------------------------------------------------------------------------------------------------- | |
| 3655 // Synchronization | |
| 3656 | |
| 3657 | |
| 3658 // See frame_sparc.hpp for monitor block layout. | |
| 3659 // Monitor elements are dynamically allocated by growing stack as needed. | |
| 3660 | |
| 3661 void TemplateTable::monitorenter() { | |
| 3662 transition(atos, vtos); | |
| 3663 __ verify_oop(Otos_i); | |
| 3664 // Try to acquire a lock on the object | |
| 3665 // Repeat until succeeded (i.e., until | |
| 3666 // monitorenter returns true). | |
| 3667 | |
| 3668 { Label ok; | |
| 3669 __ tst(Otos_i); | |
| 3670 __ throw_if_not_1_x( Assembler::notZero, ok); | |
| 3671 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
| 3672 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3673 } | |
| 3674 | |
| 3675 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
| 3676 | |
| 3677 // find a free slot in the monitor block | |
| 3678 | |
| 3679 | |
| 3680 // initialize entry pointer | |
| 3681 __ clr(O1); // points to free slot or NULL | |
| 3682 | |
| 3683 { | |
| 3684 Label entry, loop, exit; | |
| 3685 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3686 __ ba( entry ); |
| 0 | 3687 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
| 3688 | |
| 3689 | |
| 3690 __ bind( loop ); | |
| 3691 | |
| 3692 __ verify_oop(O4); // verify each monitor's oop | |
| 3693 __ tst(O4); // is this entry unused? | |
| 3694 if (VM_Version::v9_instructions_work()) | |
| 3695 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
| 3696 else { | |
| 3697 Label L; | |
| 3698 __ br( Assembler::zero, true, Assembler::pn, L ); | |
| 3699 __ delayed()->mov(O3, O1); // rememeber this one if match | |
| 3700 __ bind(L); | |
| 3701 } | |
| 3702 | |
| 3703 __ cmp(O4, O0); // check if current entry is for same object | |
| 3704 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
| 3705 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
| 3706 | |
| 3707 __ bind( entry ); | |
| 3708 | |
| 3709 __ cmp( O3, O2 ); | |
| 3710 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3711 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3712 | |
| 3713 __ bind( exit ); | |
| 3714 } | |
| 3715 | |
| 3716 { Label allocated; | |
| 3717 | |
| 3718 // found free slot? | |
| 3839 | 3719 __ br_notnull_short(O1, Assembler::pn, allocated); |
| 0 | 3720 |
| 3721 __ add_monitor_to_stack( false, O2, O3 ); | |
| 3722 __ mov(Lmonitors, O1); | |
| 3723 | |
| 3724 __ bind(allocated); | |
| 3725 } | |
| 3726 | |
| 3727 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3728 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3729 __ inc(Lbcp); | |
| 3730 | |
| 3731 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 3732 __ lock_object(O1, O0); | |
| 3733 | |
| 3734 // check if there's enough space on the stack for the monitors after locking | |
| 3735 __ generate_stack_overflow_check(0); | |
| 3736 | |
| 3737 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3738 __ dispatch_next(vtos); | |
| 3739 } | |
| 3740 | |
| 3741 | |
| 3742 void TemplateTable::monitorexit() { | |
| 3743 transition(atos, vtos); | |
| 3744 __ verify_oop(Otos_i); | |
| 3745 __ tst(Otos_i); | |
| 3746 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
| 3747 | |
| 3748 assert(O0 == Otos_i, "just checking"); | |
| 3749 | |
| 3750 { Label entry, loop, found; | |
| 3751 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3752 __ ba(entry); |
| 0 | 3753 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
| 3754 // By using a local it survives the call to the C routine. | |
| 3755 __ delayed()->mov( Lmonitors, Lscratch ); | |
| 3756 | |
| 3757 __ bind( loop ); | |
| 3758 | |
| 3759 __ verify_oop(O4); // verify each monitor's oop | |
| 3760 __ cmp(O4, O0); // check if current entry is for desired object | |
| 3761 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
| 3762 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
| 3763 | |
| 3764 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
| 3765 | |
| 3766 __ bind( entry ); | |
| 3767 | |
| 3768 __ cmp( Lscratch, O2 ); | |
| 3769 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3770 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3771 | |
| 3772 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3773 __ should_not_reach_here(); | |
| 3774 | |
| 3775 __ bind(found); | |
| 3776 } | |
| 3777 __ unlock_object(O1); | |
| 3778 } | |
| 3779 | |
| 3780 | |
| 3781 //---------------------------------------------------------------------------------------------------- | |
| 3782 // Wide instructions | |
| 3783 | |
| 3784 void TemplateTable::wide() { | |
| 3785 transition(vtos, vtos); | |
| 3786 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
| 3787 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
| 727 | 3788 AddressLiteral ep(Interpreter::_wentry_point); |
| 3789 __ set(ep, G4_scratch); | |
| 3790 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
| 0 | 3791 __ jmp(G3_scratch, G0); |
| 3792 __ delayed()->nop(); | |
| 3793 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
| 3794 } | |
| 3795 | |
| 3796 | |
| 3797 //---------------------------------------------------------------------------------------------------- | |
| 3798 // Multi arrays | |
| 3799 | |
| 3800 void TemplateTable::multianewarray() { | |
| 3801 transition(vtos, atos); | |
| 3802 // put ndims * wordSize into Lscratch | |
| 3803 __ ldub( Lbcp, 3, Lscratch); | |
| 1506 | 3804 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
| 0 | 3805 // Lesp points past last_dim, so set to O1 to first_dim address |
| 3806 __ add( Lesp, Lscratch, O1); | |
| 3807 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
| 3808 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
| 3809 } | |
| 3810 #endif /* !CC_INTERP */ |