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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
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247 // Generate the OSR entry prologue at the first unknown OSR value, or if there | 247 // Generate the OSR entry prologue at the first unknown OSR value, or if there |
248 // are none, at the OSR entrypoint instruction. | 248 // are none, at the OSR entrypoint instruction. |
249 if (osr_pc_offset_ >= 0) return; | 249 if (osr_pc_offset_ >= 0) return; |
250 | 250 |
251 osr_pc_offset_ = masm()->pc_offset(); | 251 osr_pc_offset_ = masm()->pc_offset(); |
252 | 252 |
253 // Adjust the frame size, subsuming the unoptimized frame into the | 253 // Adjust the frame size, subsuming the unoptimized frame into the |
254 // optimized frame. | 254 // optimized frame. |
255 int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots(); | 255 int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots(); |
256 DCHECK(slots >= 0); | 256 DCHECK(slots >= 0); |
| 257 __ OSRDropVectorFromStack(graph()->osr()->UnoptimizedFrameSlots(), rbx, rax); |
257 __ subp(rsp, Immediate(slots * kPointerSize)); | 258 __ subp(rsp, Immediate(slots * kPointerSize)); |
258 } | 259 } |
259 | 260 |
260 | 261 |
261 void LCodeGen::GenerateBodyInstructionPre(LInstruction* instr) { | 262 void LCodeGen::GenerateBodyInstructionPre(LInstruction* instr) { |
262 if (instr->IsCall()) { | 263 if (instr->IsCall()) { |
263 EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); | 264 EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); |
264 } | 265 } |
265 if (!instr->IsLazyBailout() && !instr->IsGap()) { | 266 if (!instr->IsLazyBailout() && !instr->IsGap()) { |
266 safepoints_.BumpLastLazySafepointIndex(); | 267 safepoints_.BumpLastLazySafepointIndex(); |
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5931 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 5932 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
5932 RecordSafepoint(Safepoint::kNoLazyDeopt); | 5933 RecordSafepoint(Safepoint::kNoLazyDeopt); |
5933 } | 5934 } |
5934 | 5935 |
5935 | 5936 |
5936 #undef __ | 5937 #undef __ |
5937 | 5938 |
5938 } } // namespace v8::internal | 5939 } } // namespace v8::internal |
5939 | 5940 |
5940 #endif // V8_TARGET_ARCH_X64 | 5941 #endif // V8_TARGET_ARCH_X64 |
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