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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/mips64/codegen-mips64.h" | 5 #include "src/mips64/codegen-mips64.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/macro-assembler.h" | 10 #include "src/macro-assembler.h" |
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1187 DCHECK(young_sequence_.length() == kNoCodeAgeSequenceLength); | 1187 DCHECK(young_sequence_.length() == kNoCodeAgeSequenceLength); |
1188 // Since patcher is a large object, allocate it dynamically when needed, | 1188 // Since patcher is a large object, allocate it dynamically when needed, |
1189 // to avoid overloading the stack in stress conditions. | 1189 // to avoid overloading the stack in stress conditions. |
1190 // DONT_FLUSH is used because the CodeAgingHelper is initialized early in | 1190 // DONT_FLUSH is used because the CodeAgingHelper is initialized early in |
1191 // the process, before MIPS simulator ICache is setup. | 1191 // the process, before MIPS simulator ICache is setup. |
1192 base::SmartPointer<CodePatcher> patcher( | 1192 base::SmartPointer<CodePatcher> patcher( |
1193 new CodePatcher(isolate, young_sequence_.start(), | 1193 new CodePatcher(isolate, young_sequence_.start(), |
1194 young_sequence_.length() / Assembler::kInstrSize, | 1194 young_sequence_.length() / Assembler::kInstrSize, |
1195 CodePatcher::DONT_FLUSH)); | 1195 CodePatcher::DONT_FLUSH)); |
1196 PredictableCodeSizeScope scope(patcher->masm(), young_sequence_.length()); | 1196 PredictableCodeSizeScope scope(patcher->masm(), young_sequence_.length()); |
1197 patcher->masm()->Push(ra, fp, cp, a1); | 1197 patcher->masm()->PushStandardFrame(a1); |
1198 patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); | 1198 patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); |
1199 patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); | 1199 patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); |
1200 patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); | 1200 patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); |
1201 patcher->masm()->Daddu( | |
1202 fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); | |
1203 } | 1201 } |
1204 | 1202 |
1205 | 1203 |
1206 #ifdef DEBUG | 1204 #ifdef DEBUG |
1207 bool CodeAgingHelper::IsOld(byte* candidate) const { | 1205 bool CodeAgingHelper::IsOld(byte* candidate) const { |
1208 return Memory::uint32_at(candidate) == kCodeAgePatchFirstInstruction; | 1206 return Memory::uint32_at(candidate) == kCodeAgePatchFirstInstruction; |
1209 } | 1207 } |
1210 #endif | 1208 #endif |
1211 | 1209 |
1212 | 1210 |
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1258 } | 1256 } |
1259 } | 1257 } |
1260 | 1258 |
1261 | 1259 |
1262 #undef __ | 1260 #undef __ |
1263 | 1261 |
1264 } // namespace internal | 1262 } // namespace internal |
1265 } // namespace v8 | 1263 } // namespace v8 |
1266 | 1264 |
1267 #endif // V8_TARGET_ARCH_MIPS64 | 1265 #endif // V8_TARGET_ARCH_MIPS64 |
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