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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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/compiler/code-generator.h" | 5 #include "src/compiler/code-generator.h" |
6 | 6 |
7 #include "src/ast/scopes.h" | 7 #include "src/ast/scopes.h" |
8 #include "src/compiler/code-generator-impl.h" | 8 #include "src/compiler/code-generator-impl.h" |
9 #include "src/compiler/gap-resolver.h" | 9 #include "src/compiler/gap-resolver.h" |
10 #include "src/compiler/node-matchers.h" | 10 #include "src/compiler/node-matchers.h" |
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176 if (mode_ > RecordWriteMode::kValueIsPointer) { | 176 if (mode_ > RecordWriteMode::kValueIsPointer) { |
177 __ JumpIfSmi(value_, exit()); | 177 __ JumpIfSmi(value_, exit()); |
178 } | 178 } |
179 if (mode_ > RecordWriteMode::kValueIsMap) { | 179 if (mode_ > RecordWriteMode::kValueIsMap) { |
180 __ CheckPageFlag(value_, scratch0_, | 180 __ CheckPageFlag(value_, scratch0_, |
181 MemoryChunk::kPointersToHereAreInterestingMask, eq, | 181 MemoryChunk::kPointersToHereAreInterestingMask, eq, |
182 exit()); | 182 exit()); |
183 } | 183 } |
184 SaveFPRegsMode const save_fp_mode = | 184 SaveFPRegsMode const save_fp_mode = |
185 frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs; | 185 frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs; |
186 // TODO(turbofan): Once we get frame elision working, we need to save | 186 if (!frame()->needs_frame()) { |
187 // and restore lr properly here if the frame was elided. | 187 // We need to save and restore lr if the frame was elided. |
| 188 __ mflr(scratch1_); |
| 189 __ Push(scratch1_); |
| 190 } |
188 RecordWriteStub stub(isolate(), object_, scratch0_, scratch1_, | 191 RecordWriteStub stub(isolate(), object_, scratch0_, scratch1_, |
189 EMIT_REMEMBERED_SET, save_fp_mode); | 192 EMIT_REMEMBERED_SET, save_fp_mode); |
190 __ add(scratch1_, object_, offset_); | 193 __ add(scratch1_, object_, offset_); |
191 __ CallStub(&stub); | 194 __ CallStub(&stub); |
| 195 if (!frame()->needs_frame()) { |
| 196 // We need to save and restore lr if the frame was elided. |
| 197 __ Pop(scratch1_); |
| 198 __ mtlr(scratch1_); |
| 199 } |
192 } | 200 } |
193 | 201 |
194 private: | 202 private: |
195 Register const object_; | 203 Register const object_; |
196 Register const offset_; | 204 Register const offset_; |
197 Register const value_; | 205 Register const value_; |
198 Register const scratch0_; | 206 Register const scratch0_; |
199 Register const scratch1_; | 207 Register const scratch1_; |
200 RecordWriteMode const mode_; | 208 RecordWriteMode const mode_; |
201 }; | 209 }; |
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1853 padding_size -= v8::internal::Assembler::kInstrSize; | 1861 padding_size -= v8::internal::Assembler::kInstrSize; |
1854 } | 1862 } |
1855 } | 1863 } |
1856 } | 1864 } |
1857 | 1865 |
1858 #undef __ | 1866 #undef __ |
1859 | 1867 |
1860 } // namespace compiler | 1868 } // namespace compiler |
1861 } // namespace internal | 1869 } // namespace internal |
1862 } // namespace v8 | 1870 } // namespace v8 |
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