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Issue 2151563003: Revert of [Turbofan] Change AlignSavedCalleeRegisterSlots to AlignFrame. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 5 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 1 // Copyright 2015 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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2008 __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY); 2008 __ Call(deopt_entry, RelocInfo::RUNTIME_ENTRY);
2009 return kSuccess; 2009 return kSuccess;
2010 } 2010 }
2011 2011
2012 void CodeGenerator::FinishFrame(Frame* frame) { 2012 void CodeGenerator::FinishFrame(Frame* frame) {
2013 CallDescriptor* descriptor = linkage()->GetIncomingDescriptor(); 2013 CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
2014 const RegList double_saves = descriptor->CalleeSavedFPRegisters(); 2014 const RegList double_saves = descriptor->CalleeSavedFPRegisters();
2015 2015
2016 // Save callee-saved Double registers. 2016 // Save callee-saved Double registers.
2017 if (double_saves != 0) { 2017 if (double_saves != 0) {
2018 frame->AlignFrame(); 2018 frame->AlignSavedCalleeRegisterSlots();
2019 DCHECK(kNumCalleeSavedDoubles == 2019 DCHECK(kNumCalleeSavedDoubles ==
2020 base::bits::CountPopulation32(double_saves)); 2020 base::bits::CountPopulation32(double_saves));
2021 frame->AllocateSavedCalleeRegisterSlots(kNumCalleeSavedDoubles * 2021 frame->AllocateSavedCalleeRegisterSlots(kNumCalleeSavedDoubles *
2022 (kDoubleSize / kPointerSize)); 2022 (kDoubleSize / kPointerSize));
2023 } 2023 }
2024 // Save callee-saved registers. 2024 // Save callee-saved registers.
2025 const RegList saves = descriptor->CalleeSavedRegisters(); 2025 const RegList saves = descriptor->CalleeSavedRegisters();
2026 if (saves != 0) { 2026 if (saves != 0) {
2027 // register save area does not include the fp or constant pool pointer. 2027 // register save area does not include the fp or constant pool pointer.
2028 const int num_saves = kNumCalleeSaved - 1; 2028 const int num_saves = kNumCalleeSaved - 1;
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2347 padding_size -= 2; 2347 padding_size -= 2;
2348 } 2348 }
2349 } 2349 }
2350 } 2350 }
2351 2351
2352 #undef __ 2352 #undef __
2353 2353
2354 } // namespace compiler 2354 } // namespace compiler
2355 } // namespace internal 2355 } // namespace internal
2356 } // namespace v8 2356 } // namespace v8
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