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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 #if V8_TARGET_ARCH_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/deoptimizer.h" | 8 #include "src/deoptimizer.h" |
9 #include "src/full-codegen/full-codegen.h" | 9 #include "src/full-codegen/full-codegen.h" |
10 #include "src/register-configuration.h" | 10 #include "src/register-configuration.h" |
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140 const int kNumberOfRegisters = Register::kNumRegisters; | 140 const int kNumberOfRegisters = Register::kNumRegisters; |
141 | 141 |
142 const int kDoubleRegsSize = kDoubleSize * XMMRegister::kMaxNumRegisters; | 142 const int kDoubleRegsSize = kDoubleSize * XMMRegister::kMaxNumRegisters; |
143 __ subp(rsp, Immediate(kDoubleRegsSize)); | 143 __ subp(rsp, Immediate(kDoubleRegsSize)); |
144 | 144 |
145 const RegisterConfiguration* config = RegisterConfiguration::ArchDefault(); | 145 const RegisterConfiguration* config = RegisterConfiguration::ArchDefault(); |
146 for (int i = 0; i < config->num_allocatable_double_registers(); ++i) { | 146 for (int i = 0; i < config->num_allocatable_double_registers(); ++i) { |
147 int code = config->GetAllocatableDoubleCode(i); | 147 int code = config->GetAllocatableDoubleCode(i); |
148 XMMRegister xmm_reg = XMMRegister::from_code(code); | 148 XMMRegister xmm_reg = XMMRegister::from_code(code); |
149 int offset = code * kDoubleSize; | 149 int offset = code * kDoubleSize; |
150 __ movsd(Operand(rsp, offset), xmm_reg); | 150 __ Movsd(Operand(rsp, offset), xmm_reg); |
151 } | 151 } |
152 | 152 |
153 // We push all registers onto the stack, even though we do not need | 153 // We push all registers onto the stack, even though we do not need |
154 // to restore all later. | 154 // to restore all later. |
155 for (int i = 0; i < kNumberOfRegisters; i++) { | 155 for (int i = 0; i < kNumberOfRegisters; i++) { |
156 Register r = Register::from_code(i); | 156 Register r = Register::from_code(i); |
157 __ pushq(r); | 157 __ pushq(r); |
158 } | 158 } |
159 | 159 |
160 const int kSavedRegistersAreaSize = kNumberOfRegisters * kRegisterSize + | 160 const int kSavedRegistersAreaSize = kNumberOfRegisters * kRegisterSize + |
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273 __ j(not_zero, &inner_push_loop); | 273 __ j(not_zero, &inner_push_loop); |
274 __ addp(rax, Immediate(kPointerSize)); | 274 __ addp(rax, Immediate(kPointerSize)); |
275 __ bind(&outer_loop_header); | 275 __ bind(&outer_loop_header); |
276 __ cmpp(rax, rdx); | 276 __ cmpp(rax, rdx); |
277 __ j(below, &outer_push_loop); | 277 __ j(below, &outer_push_loop); |
278 | 278 |
279 for (int i = 0; i < config->num_allocatable_double_registers(); ++i) { | 279 for (int i = 0; i < config->num_allocatable_double_registers(); ++i) { |
280 int code = config->GetAllocatableDoubleCode(i); | 280 int code = config->GetAllocatableDoubleCode(i); |
281 XMMRegister xmm_reg = XMMRegister::from_code(code); | 281 XMMRegister xmm_reg = XMMRegister::from_code(code); |
282 int src_offset = code * kDoubleSize + double_regs_offset; | 282 int src_offset = code * kDoubleSize + double_regs_offset; |
283 __ movsd(xmm_reg, Operand(rbx, src_offset)); | 283 __ Movsd(xmm_reg, Operand(rbx, src_offset)); |
284 } | 284 } |
285 | 285 |
286 // Push state, pc, and continuation from the last output frame. | 286 // Push state, pc, and continuation from the last output frame. |
287 __ Push(Operand(rbx, FrameDescription::state_offset())); | 287 __ Push(Operand(rbx, FrameDescription::state_offset())); |
288 __ PushQuad(Operand(rbx, FrameDescription::pc_offset())); | 288 __ PushQuad(Operand(rbx, FrameDescription::pc_offset())); |
289 __ PushQuad(Operand(rbx, FrameDescription::continuation_offset())); | 289 __ PushQuad(Operand(rbx, FrameDescription::continuation_offset())); |
290 | 290 |
291 // Push the registers from the last output frame. | 291 // Push the registers from the last output frame. |
292 for (int i = 0; i < kNumberOfRegisters; i++) { | 292 for (int i = 0; i < kNumberOfRegisters; i++) { |
293 int offset = (i * kPointerSize) + FrameDescription::registers_offset(); | 293 int offset = (i * kPointerSize) + FrameDescription::registers_offset(); |
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352 } | 352 } |
353 | 353 |
354 | 354 |
355 #undef __ | 355 #undef __ |
356 | 356 |
357 | 357 |
358 } // namespace internal | 358 } // namespace internal |
359 } // namespace v8 | 359 } // namespace v8 |
360 | 360 |
361 #endif // V8_TARGET_ARCH_X64 | 361 #endif // V8_TARGET_ARCH_X64 |
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