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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" |
11 #include "src/base/division-by-constant.h" | 11 #include "src/base/division-by-constant.h" |
12 #include "src/bootstrapper.h" | 12 #include "src/bootstrapper.h" |
13 #include "src/codegen.h" | 13 #include "src/codegen.h" |
14 #include "src/debug/debug.h" | 14 #include "src/debug/debug.h" |
15 #include "src/mips/macro-assembler-mips.h" | 15 #include "src/mips/macro-assembler-mips.h" |
16 #include "src/register-configuration.h" | |
17 #include "src/runtime/runtime.h" | 16 #include "src/runtime/runtime.h" |
18 | 17 |
19 namespace v8 { | 18 namespace v8 { |
20 namespace internal { | 19 namespace internal { |
21 | 20 |
22 MacroAssembler::MacroAssembler(Isolate* arg_isolate, void* buffer, int size) | 21 MacroAssembler::MacroAssembler(Isolate* arg_isolate, void* buffer, int size) |
23 : Assembler(arg_isolate, buffer, size), | 22 : Assembler(arg_isolate, buffer, size), |
24 generating_stub_(false), | 23 generating_stub_(false), |
25 has_frame_(false), | 24 has_frame_(false), |
26 has_double_zero_reg_set_(false) { | 25 has_double_zero_reg_set_(false) { |
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140 | 139 |
141 | 140 |
142 MemOperand MacroAssembler::SafepointRegisterSlot(Register reg) { | 141 MemOperand MacroAssembler::SafepointRegisterSlot(Register reg) { |
143 return MemOperand(sp, SafepointRegisterStackIndex(reg.code()) * kPointerSize); | 142 return MemOperand(sp, SafepointRegisterStackIndex(reg.code()) * kPointerSize); |
144 } | 143 } |
145 | 144 |
146 | 145 |
147 MemOperand MacroAssembler::SafepointRegistersAndDoublesSlot(Register reg) { | 146 MemOperand MacroAssembler::SafepointRegistersAndDoublesSlot(Register reg) { |
148 UNIMPLEMENTED_MIPS(); | 147 UNIMPLEMENTED_MIPS(); |
149 // General purpose registers are pushed last on the stack. | 148 // General purpose registers are pushed last on the stack. |
150 int doubles_size = DoubleRegister::kMaxNumRegisters * kDoubleSize; | 149 int doubles_size = FPURegister::NumAllocatableRegisters() * kDoubleSize; |
151 int register_offset = SafepointRegisterStackIndex(reg.code()) * kPointerSize; | 150 int register_offset = SafepointRegisterStackIndex(reg.code()) * kPointerSize; |
152 return MemOperand(sp, doubles_size + register_offset); | 151 return MemOperand(sp, doubles_size + register_offset); |
153 } | 152 } |
154 | 153 |
155 | 154 |
156 void MacroAssembler::InNewSpace(Register object, | 155 void MacroAssembler::InNewSpace(Register object, |
157 Register scratch, | 156 Register scratch, |
158 Condition cc, | 157 Condition cc, |
159 Label* branch) { | 158 Label* branch) { |
160 DCHECK(cc == eq || cc == ne); | 159 DCHECK(cc == eq || cc == ne); |
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3675 RegList temps, | 3674 RegList temps, |
3676 int field_count) { | 3675 int field_count) { |
3677 DCHECK((temps & dst.bit()) == 0); | 3676 DCHECK((temps & dst.bit()) == 0); |
3678 DCHECK((temps & src.bit()) == 0); | 3677 DCHECK((temps & src.bit()) == 0); |
3679 // Primitive implementation using only one temporary register. | 3678 // Primitive implementation using only one temporary register. |
3680 | 3679 |
3681 Register tmp = no_reg; | 3680 Register tmp = no_reg; |
3682 // Find a temp register in temps list. | 3681 // Find a temp register in temps list. |
3683 for (int i = 0; i < kNumRegisters; i++) { | 3682 for (int i = 0; i < kNumRegisters; i++) { |
3684 if ((temps & (1 << i)) != 0) { | 3683 if ((temps & (1 << i)) != 0) { |
3685 tmp.reg_code = i; | 3684 tmp.code_ = i; |
3686 break; | 3685 break; |
3687 } | 3686 } |
3688 } | 3687 } |
3689 DCHECK(!tmp.is(no_reg)); | 3688 DCHECK(!tmp.is(no_reg)); |
3690 | 3689 |
3691 for (int i = 0; i < field_count; i++) { | 3690 for (int i = 0; i < field_count; i++) { |
3692 lw(tmp, FieldMemOperand(src, i * kPointerSize)); | 3691 lw(tmp, FieldMemOperand(src, i * kPointerSize)); |
3693 sw(tmp, FieldMemOperand(dst, i * kPointerSize)); | 3692 sw(tmp, FieldMemOperand(dst, i * kPointerSize)); |
3694 } | 3693 } |
3695 } | 3694 } |
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5772 Register reg5, | 5771 Register reg5, |
5773 Register reg6) { | 5772 Register reg6) { |
5774 RegList regs = 0; | 5773 RegList regs = 0; |
5775 if (reg1.is_valid()) regs |= reg1.bit(); | 5774 if (reg1.is_valid()) regs |= reg1.bit(); |
5776 if (reg2.is_valid()) regs |= reg2.bit(); | 5775 if (reg2.is_valid()) regs |= reg2.bit(); |
5777 if (reg3.is_valid()) regs |= reg3.bit(); | 5776 if (reg3.is_valid()) regs |= reg3.bit(); |
5778 if (reg4.is_valid()) regs |= reg4.bit(); | 5777 if (reg4.is_valid()) regs |= reg4.bit(); |
5779 if (reg5.is_valid()) regs |= reg5.bit(); | 5778 if (reg5.is_valid()) regs |= reg5.bit(); |
5780 if (reg6.is_valid()) regs |= reg6.bit(); | 5779 if (reg6.is_valid()) regs |= reg6.bit(); |
5781 | 5780 |
5782 const RegisterConfiguration* config = RegisterConfiguration::ArchDefault(); | 5781 for (int i = 0; i < Register::NumAllocatableRegisters(); i++) { |
5783 for (int i = 0; i < config->num_allocatable_general_registers(); ++i) { | 5782 Register candidate = Register::FromAllocationIndex(i); |
5784 int code = config->GetAllocatableGeneralCode(i); | |
5785 Register candidate = Register::from_code(code); | |
5786 if (regs & candidate.bit()) continue; | 5783 if (regs & candidate.bit()) continue; |
5787 return candidate; | 5784 return candidate; |
5788 } | 5785 } |
5789 UNREACHABLE(); | 5786 UNREACHABLE(); |
5790 return no_reg; | 5787 return no_reg; |
5791 } | 5788 } |
5792 | 5789 |
5793 | 5790 |
5794 void MacroAssembler::JumpIfDictionaryInPrototypeChain( | 5791 void MacroAssembler::JumpIfDictionaryInPrototypeChain( |
5795 Register object, | 5792 Register object, |
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5929 if (mag.shift > 0) sra(result, result, mag.shift); | 5926 if (mag.shift > 0) sra(result, result, mag.shift); |
5930 srl(at, dividend, 31); | 5927 srl(at, dividend, 31); |
5931 Addu(result, result, Operand(at)); | 5928 Addu(result, result, Operand(at)); |
5932 } | 5929 } |
5933 | 5930 |
5934 | 5931 |
5935 } // namespace internal | 5932 } // namespace internal |
5936 } // namespace v8 | 5933 } // namespace v8 |
5937 | 5934 |
5938 #endif // V8_TARGET_ARCH_MIPS | 5935 #endif // V8_TARGET_ARCH_MIPS |
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