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Issue 1474763008: Always pass an Isolate to AssemblerBase (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: updates Created 5 years ago
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1 1
2 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Copyright 2012 the V8 project authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be 3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file. 4 // found in the LICENSE file.
5 5
6 #include <limits.h> // For LONG_MIN, LONG_MAX. 6 #include <limits.h> // For LONG_MIN, LONG_MAX.
7 7
8 #if V8_TARGET_ARCH_MIPS 8 #if V8_TARGET_ARCH_MIPS
9 9
10 #include "src/base/bits.h" 10 #include "src/base/bits.h"
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5795 if (reg5.is_valid()) regs |= reg5.bit(); 5795 if (reg5.is_valid()) regs |= reg5.bit();
5796 if (reg6.is_valid()) regs |= reg6.bit(); 5796 if (reg6.is_valid()) regs |= reg6.bit();
5797 if (reg7.is_valid()) regs |= reg7.bit(); 5797 if (reg7.is_valid()) regs |= reg7.bit();
5798 if (reg8.is_valid()) regs |= reg8.bit(); 5798 if (reg8.is_valid()) regs |= reg8.bit();
5799 int n_of_non_aliasing_regs = NumRegs(regs); 5799 int n_of_non_aliasing_regs = NumRegs(regs);
5800 5800
5801 return n_of_valid_regs != n_of_non_aliasing_regs; 5801 return n_of_valid_regs != n_of_non_aliasing_regs;
5802 } 5802 }
5803 5803
5804 5804
5805 CodePatcher::CodePatcher(byte* address, int instructions, 5805 CodePatcher::CodePatcher(Isolate* isolate, byte* address, int instructions,
5806 FlushICache flush_cache) 5806 FlushICache flush_cache)
5807 : address_(address), 5807 : address_(address),
5808 size_(instructions * Assembler::kInstrSize), 5808 size_(instructions * Assembler::kInstrSize),
5809 masm_(NULL, address, size_ + Assembler::kGap, CodeObjectRequired::kNo), 5809 masm_(isolate, address, size_ + Assembler::kGap, CodeObjectRequired::kNo),
5810 flush_cache_(flush_cache) { 5810 flush_cache_(flush_cache) {
5811 // Create a new macro assembler pointing to the address of the code to patch. 5811 // Create a new macro assembler pointing to the address of the code to patch.
5812 // The size is adjusted with kGap on order for the assembler to generate size 5812 // The size is adjusted with kGap on order for the assembler to generate size
5813 // bytes of instructions without failing with buffer size constraints. 5813 // bytes of instructions without failing with buffer size constraints.
5814 DCHECK(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); 5814 DCHECK(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
5815 } 5815 }
5816 5816
5817 5817
5818 CodePatcher::~CodePatcher() { 5818 CodePatcher::~CodePatcher() {
5819 // Indicate that code has changed. 5819 // Indicate that code has changed.
5820 if (flush_cache_ == FLUSH) { 5820 if (flush_cache_ == FLUSH) {
5821 Assembler::FlushICacheWithoutIsolate(address_, size_); 5821 Assembler::FlushICache(masm_.isolate(), address_, size_);
5822 } 5822 }
5823 5823
5824 // Check that the code was patched as expected. 5824 // Check that the code was patched as expected.
5825 DCHECK(masm_.pc_ == address_ + size_); 5825 DCHECK(masm_.pc_ == address_ + size_);
5826 DCHECK(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap); 5826 DCHECK(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
5827 } 5827 }
5828 5828
5829 5829
5830 void CodePatcher::Emit(Instr instr) { 5830 void CodePatcher::Emit(Instr instr) {
5831 masm()->emit(instr); 5831 masm()->emit(instr);
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5864 if (mag.shift > 0) sra(result, result, mag.shift); 5864 if (mag.shift > 0) sra(result, result, mag.shift);
5865 srl(at, dividend, 31); 5865 srl(at, dividend, 31);
5866 Addu(result, result, Operand(at)); 5866 Addu(result, result, Operand(at));
5867 } 5867 }
5868 5868
5869 5869
5870 } // namespace internal 5870 } // namespace internal
5871 } // namespace v8 5871 } // namespace v8
5872 5872
5873 #endif // V8_TARGET_ARCH_MIPS 5873 #endif // V8_TARGET_ARCH_MIPS
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