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// Copyright 2015 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/instruction-scheduler.h"
namespace v8 {
namespace internal {
namespace compiler {
bool InstructionScheduler::SchedulerSupported() { return true; }
int InstructionScheduler::GetTargetInstructionFlags(
const Instruction* instr) const {
switch (instr->arch_opcode()) {
case kArmAdd:
case kArmAnd:
case kArmBic:
case kArmClz:
case kArmCmp:
case kArmCmn:
case kArmTst:
case kArmTeq:
case kArmOrr:
case kArmEor:
case kArmSub:
case kArmRsb:
case kArmMul:
case kArmMla:
case kArmMls:
case kArmSmmul:
case kArmSmmla:
case kArmUmull:
case kArmSdiv:
case kArmUdiv:
case kArmMov:
case kArmMvn:
case kArmBfc:
case kArmUbfx:
case kArmSxtb:
case kArmSxth:
case kArmSxtab:
case kArmSxtah:
case kArmUxtb:
case kArmUxth:
case kArmUxtab:
case kArmUxtah:
case kArmVcmpF32:
case kArmVaddF32:
case kArmVsubF32:
case kArmVmulF32:
case kArmVmlaF32:
case kArmVmlsF32:
case kArmVdivF32:
case kArmVabsF32:
case kArmVnegF32:
case kArmVsqrtF32:
case kArmVcmpF64:
case kArmVaddF64:
case kArmVsubF64:
case kArmVmulF64:
case kArmVmlaF64:
case kArmVmlsF64:
case kArmVdivF64:
case kArmVmodF64:
case kArmVabsF64:
case kArmVnegF64:
case kArmVsqrtF64:
case kArmVrintmF32:
case kArmVrintmF64:
case kArmVrintpF32:
case kArmVrintpF64:
case kArmVrintzF32:
case kArmVrintzF64:
case kArmVrintaF64:
case kArmVrintnF32:
case kArmVrintnF64:
case kArmVcvtF32F64:
case kArmVcvtF64F32:
case kArmVcvtF64S32:
case kArmVcvtF64U32:
case kArmVcvtS32F64:
case kArmVcvtU32F64:
case kArmVmovLowU32F64:
case kArmVmovLowF64U32:
case kArmVmovHighU32F64:
case kArmVmovHighF64U32:
case kArmVmovF64U32U32:
return kNoOpcodeFlags;
case kArmVldrF32:
case kArmVldrF64:
case kArmLdrb:
case kArmLdrsb:
case kArmLdrh:
case kArmLdrsh:
case kArmLdr:
return kIsLoadOperation;
case kArmVstrF32:
case kArmVstrF64:
case kArmStrb:
case kArmStrh:
case kArmStr:
case kArmPush:
case kArmPoke:
return kHasSideEffect;
#define CASE(Name) case k##Name:
COMMON_ARCH_OPCODE_LIST(CASE)
#undef CASE
// Already covered in architecture independent code.
UNREACHABLE();
}
UNREACHABLE();
return kNoOpcodeFlags;
}
int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
// TODO(all): Add instruction cost modeling.
return 1;
}
} // namespace compiler
} // namespace internal
} // namespace v8
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