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// 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/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 kArm64Add:
case kArm64Add32:
case kArm64And:
case kArm64And32:
case kArm64Bic:
case kArm64Bic32:
case kArm64Clz:
case kArm64Clz32:
case kArm64Cmp:
case kArm64Cmp32:
case kArm64Cmn:
case kArm64Cmn32:
case kArm64Tst:
case kArm64Tst32:
case kArm64Or:
case kArm64Or32:
case kArm64Orn:
case kArm64Orn32:
case kArm64Eor:
case kArm64Eor32:
case kArm64Eon:
case kArm64Eon32:
case kArm64Sub:
case kArm64Sub32:
case kArm64Mul:
case kArm64Mul32:
case kArm64Smull:
case kArm64Umull:
case kArm64Madd:
case kArm64Madd32:
case kArm64Msub:
case kArm64Msub32:
case kArm64Mneg:
case kArm64Mneg32:
case kArm64Idiv:
case kArm64Idiv32:
case kArm64Udiv:
case kArm64Udiv32:
case kArm64Imod:
case kArm64Imod32:
case kArm64Umod:
case kArm64Umod32:
case kArm64Not:
case kArm64Not32:
case kArm64Lsl:
case kArm64Lsl32:
case kArm64Lsr:
case kArm64Lsr32:
case kArm64Asr:
case kArm64Asr32:
case kArm64Ror:
case kArm64Ror32:
case kArm64Mov32:
case kArm64Sxtb32:
case kArm64Sxth32:
case kArm64Sxtw:
case kArm64Sbfx32:
case kArm64Ubfx:
case kArm64Ubfx32:
case kArm64Ubfiz32:
case kArm64Bfi:
case kArm64Float32Cmp:
case kArm64Float32Add:
case kArm64Float32Sub:
case kArm64Float32Mul:
case kArm64Float32Div:
case kArm64Float32Max:
case kArm64Float32Min:
case kArm64Float32Abs:
case kArm64Float32Sqrt:
case kArm64Float32RoundDown:
case kArm64Float64Cmp:
case kArm64Float64Add:
case kArm64Float64Sub:
case kArm64Float64Mul:
case kArm64Float64Div:
case kArm64Float64Mod:
case kArm64Float64Max:
case kArm64Float64Min:
case kArm64Float64Abs:
case kArm64Float64Neg:
case kArm64Float64Sqrt:
case kArm64Float64RoundDown:
case kArm64Float64RoundTiesAway:
case kArm64Float64RoundTruncate:
case kArm64Float64RoundTiesEven:
case kArm64Float64RoundUp:
case kArm64Float32RoundTiesEven:
case kArm64Float32RoundTruncate:
case kArm64Float32RoundUp:
case kArm64Float32ToFloat64:
case kArm64Float64ToFloat32:
case kArm64Float64ToInt32:
case kArm64Float64ToUint32:
case kArm64Float32ToInt64:
case kArm64Float64ToInt64:
case kArm64Float32ToUint64:
case kArm64Float64ToUint64:
case kArm64Int32ToFloat64:
case kArm64Int64ToFloat32:
case kArm64Int64ToFloat64:
case kArm64Uint32ToFloat64:
case kArm64Uint64ToFloat32:
case kArm64Uint64ToFloat64:
case kArm64Float64ExtractLowWord32:
case kArm64Float64ExtractHighWord32:
case kArm64Float64InsertLowWord32:
case kArm64Float64InsertHighWord32:
case kArm64Float64MoveU64:
case kArm64U64MoveFloat64:
return kNoOpcodeFlags;
case kArm64TestAndBranch32:
case kArm64TestAndBranch:
case kArm64CompareAndBranch32:
return kIsBlockTerminator;
case kArm64LdrS:
case kArm64LdrD:
case kArm64Ldrb:
case kArm64Ldrsb:
case kArm64Ldrh:
case kArm64Ldrsh:
case kArm64LdrW:
case kArm64Ldr:
return kIsLoadOperation;
case kArm64ClaimForCallArguments:
case kArm64Poke:
case kArm64PokePair:
case kArm64StrS:
case kArm64StrD:
case kArm64Strb:
case kArm64Strh:
case kArm64StrW:
case kArm64Str:
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) {
// Basic latency modeling for arm64 instructions. They have been determined
// in an empirical way.
switch (instr->arch_opcode()) {
case kArm64Float32ToFloat64:
case kArm64Float64ToFloat32:
case kArm64Float64ToInt32:
case kArm64Float64ToUint32:
case kArm64Int32ToFloat64:
case kArm64Uint32ToFloat64:
return 3;
case kArm64Float64Add:
case kArm64Float64Sub:
return 2;
case kArm64Float64Mul:
return 3;
case kArm64Float64Div:
return 6;
case kArm64Lsl:
case kArm64Lsl32:
case kArm64Lsr:
case kArm64Lsr32:
case kArm64Asr:
case kArm64Asr32:
case kArm64Ror:
case kArm64Ror32:
return 3;
case kCheckedLoadInt8:
case kCheckedLoadUint8:
case kCheckedLoadInt16:
case kCheckedLoadUint16:
case kCheckedLoadWord32:
case kCheckedLoadWord64:
case kCheckedLoadFloat32:
case kCheckedLoadFloat64:
case kArm64LdrS:
case kArm64LdrD:
case kArm64Ldrb:
case kArm64Ldrsb:
case kArm64Ldrh:
case kArm64Ldrsh:
case kArm64LdrW:
case kArm64Ldr:
return 5;
default:
return 1;
}
}
} // namespace compiler
} // namespace internal
} // namespace v8
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