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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/arm/macro-assembler-arm.h" | 7 #include "src/arm/macro-assembler-arm.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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675 // Save callee-saved registers. | 675 // Save callee-saved registers. |
676 int register_save_area_size = saved_pp ? kPointerSize : 0; | 676 int register_save_area_size = saved_pp ? kPointerSize : 0; |
677 for (int i = Register::kNumRegisters - 1; i >= 0; i--) { | 677 for (int i = Register::kNumRegisters - 1; i >= 0; i--) { |
678 if (!((1 << i) & saves)) continue; | 678 if (!((1 << i) & saves)) continue; |
679 register_save_area_size += kPointerSize; | 679 register_save_area_size += kPointerSize; |
680 } | 680 } |
681 frame()->SetRegisterSaveAreaSize(register_save_area_size); | 681 frame()->SetRegisterSaveAreaSize(register_save_area_size); |
682 __ stm(db_w, sp, saves); | 682 __ stm(db_w, sp, saves); |
683 } | 683 } |
684 } else if (descriptor->IsJSFunctionCall()) { | 684 } else if (descriptor->IsJSFunctionCall()) { |
685 CompilationInfo* info = linkage()->info(); | 685 CompilationInfo* info = this->info(); |
686 __ Prologue(info->IsCodePreAgingActive()); | 686 __ Prologue(info->IsCodePreAgingActive()); |
687 frame()->SetRegisterSaveAreaSize( | 687 frame()->SetRegisterSaveAreaSize( |
688 StandardFrameConstants::kFixedFrameSizeFromFp); | 688 StandardFrameConstants::kFixedFrameSizeFromFp); |
689 | 689 |
690 // Sloppy mode functions and builtins need to replace the receiver with the | 690 // Sloppy mode functions and builtins need to replace the receiver with the |
691 // global proxy when called as functions (without an explicit receiver | 691 // global proxy when called as functions (without an explicit receiver |
692 // object). | 692 // object). |
693 // TODO(mstarzinger/verwaest): Should this be moved back into the CallIC? | 693 // TODO(mstarzinger/verwaest): Should this be moved back into the CallIC? |
694 if (info->strict_mode() == SLOPPY && !info->is_native()) { | 694 if (info->strict_mode() == SLOPPY && !info->is_native()) { |
695 Label ok; | 695 Label ok; |
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907 } | 907 } |
908 | 908 |
909 | 909 |
910 void CodeGenerator::AddNopForSmiCodeInlining() { | 910 void CodeGenerator::AddNopForSmiCodeInlining() { |
911 // On 32-bit ARM we do not insert nops for inlined Smi code. | 911 // On 32-bit ARM we do not insert nops for inlined Smi code. |
912 } | 912 } |
913 | 913 |
914 | 914 |
915 void CodeGenerator::EnsureSpaceForLazyDeopt() { | 915 void CodeGenerator::EnsureSpaceForLazyDeopt() { |
916 int space_needed = Deoptimizer::patch_size(); | 916 int space_needed = Deoptimizer::patch_size(); |
917 if (!linkage()->info()->IsStub()) { | 917 if (!info()->IsStub()) { |
918 // Ensure that we have enough space after the previous lazy-bailout | 918 // Ensure that we have enough space after the previous lazy-bailout |
919 // instruction for patching the code here. | 919 // instruction for patching the code here. |
920 int current_pc = masm()->pc_offset(); | 920 int current_pc = masm()->pc_offset(); |
921 if (current_pc < last_lazy_deopt_pc_ + space_needed) { | 921 if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
922 // Block literal pool emission for duration of padding. | 922 // Block literal pool emission for duration of padding. |
923 v8::internal::Assembler::BlockConstPoolScope block_const_pool(masm()); | 923 v8::internal::Assembler::BlockConstPoolScope block_const_pool(masm()); |
924 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; | 924 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
925 DCHECK_EQ(0, padding_size % v8::internal::Assembler::kInstrSize); | 925 DCHECK_EQ(0, padding_size % v8::internal::Assembler::kInstrSize); |
926 while (padding_size > 0) { | 926 while (padding_size > 0) { |
927 __ nop(); | 927 __ nop(); |
928 padding_size -= v8::internal::Assembler::kInstrSize; | 928 padding_size -= v8::internal::Assembler::kInstrSize; |
929 } | 929 } |
930 } | 930 } |
931 } | 931 } |
932 MarkLazyDeoptSite(); | 932 MarkLazyDeoptSite(); |
933 } | 933 } |
934 | 934 |
935 #undef __ | 935 #undef __ |
936 | 936 |
937 } // namespace compiler | 937 } // namespace compiler |
938 } // namespace internal | 938 } // namespace internal |
939 } // namespace v8 | 939 } // namespace v8 |
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