chromium/v8/src/compiler/backend/move-optimizer.cc

// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/compiler/backend/move-optimizer.h"

#include "src/codegen/register-configuration.h"

namespace v8 {
namespace internal {
namespace compiler {

namespace {

struct MoveKey { … };

class OperandSet { … };

int FindFirstNonEmptySlot(const Instruction* instr) { … }

}  // namespace

MoveOptimizer::MoveOptimizer(Zone* local_zone, InstructionSequence* code)
    : … { … }

void MoveOptimizer::Run() { … }

void MoveOptimizer::RemoveClobberedDestinations(Instruction* instruction) { … }

void MoveOptimizer::MigrateMoves(Instruction* to, Instruction* from) { … }

void MoveOptimizer::CompressMoves(ParallelMove* left, MoveOpVector* right) { … }

void MoveOptimizer::CompressGaps(Instruction* instruction) { … }

void MoveOptimizer::CompressBlock(InstructionBlock* block) { … }

const Instruction* MoveOptimizer::LastInstruction(
    const InstructionBlock* block) const { … }

void MoveOptimizer::OptimizeMerge(InstructionBlock* block) { … }

namespace {

bool IsSlot(const InstructionOperand& op) { … }

bool Is64BitsWide(const InstructionOperand& op) { … }

bool LoadCompare(const MoveOperands* a, const MoveOperands* b) { … }

}  // namespace

// Split multiple loads of the same constant or stack slot off into the second
// slot and keep remaining moves in the first slot.
void MoveOptimizer::FinalizeMoves(Instruction* instr) { … }

}  // namespace compiler
}  // namespace internal
}  // namespace v8