src/v8/src/compiler/arm64/instruction-scheduler-arm64.cc - cobalt - Git at Google

 // 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 kArm64Rbit:
     case kArm64Rbit32:
     case kArm64Float32Cmp:
     case kArm64Float32Add:
     case kArm64Float32Sub:
     case kArm64Float32Mul:
     case kArm64Float32Div:
     case kArm64Float32Abs:
     case kArm64Float32Neg:
     case kArm64Float32Sqrt:
     case kArm64Float32RoundDown:
     case kArm64Float32Max:
     case kArm64Float32Min:
     case kArm64Float64Cmp:
     case kArm64Float64Add:
     case kArm64Float64Sub:
     case kArm64Float64Mul:
     case kArm64Float64Div:
     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 kArm64Float32ToInt32:
     case kArm64Float64ToInt32:
     case kArm64Float32ToUint32:
     case kArm64Float64ToUint32:
     case kArm64Float32ToInt64:
     case kArm64Float64ToInt64:
     case kArm64Float32ToUint64:
     case kArm64Float64ToUint64:
     case kArm64Int32ToFloat32:
     case kArm64Int32ToFloat64:
     case kArm64Int64ToFloat32:
     case kArm64Int64ToFloat64:
     case kArm64Uint32ToFloat32:
     case kArm64Uint32ToFloat64:
     case kArm64Uint64ToFloat32:
     case kArm64Uint64ToFloat64:
     case kArm64Float64ExtractLowWord32:
     case kArm64Float64ExtractHighWord32:
     case kArm64Float64InsertLowWord32:
     case kArm64Float64InsertHighWord32:
     case kArm64Float64Mod:
     case kArm64Float64MoveU64:
     case kArm64U64MoveFloat64:
     case kArm64Float64SilenceNaN:
     case kArm64F32x4Splat:
     case kArm64F32x4ExtractLane:
     case kArm64F32x4ReplaceLane:
     case kArm64F32x4SConvertI32x4:
     case kArm64F32x4UConvertI32x4:
     case kArm64F32x4Abs:
     case kArm64F32x4Neg:
     case kArm64F32x4RecipApprox:
     case kArm64F32x4RecipSqrtApprox:
     case kArm64F32x4Add:
     case kArm64F32x4AddHoriz:
     case kArm64F32x4Sub:
     case kArm64F32x4Mul:
     case kArm64F32x4Min:
     case kArm64F32x4Max:
     case kArm64F32x4Eq:
     case kArm64F32x4Ne:
     case kArm64F32x4Lt:
     case kArm64F32x4Le:
     case kArm64I32x4Splat:
     case kArm64I32x4ExtractLane:
     case kArm64I32x4ReplaceLane:
     case kArm64I32x4SConvertF32x4:
     case kArm64I32x4SConvertI16x8Low:
     case kArm64I32x4SConvertI16x8High:
     case kArm64I32x4Neg:
     case kArm64I32x4Shl:
     case kArm64I32x4ShrS:
     case kArm64I32x4Add:
     case kArm64I32x4AddHoriz:
     case kArm64I32x4Sub:
     case kArm64I32x4Mul:
     case kArm64I32x4MinS:
     case kArm64I32x4MaxS:
     case kArm64I32x4Eq:
     case kArm64I32x4Ne:
     case kArm64I32x4GtS:
     case kArm64I32x4GeS:
     case kArm64I32x4UConvertF32x4:
     case kArm64I32x4UConvertI16x8Low:
     case kArm64I32x4UConvertI16x8High:
     case kArm64I32x4ShrU:
     case kArm64I32x4MinU:
     case kArm64I32x4MaxU:
     case kArm64I32x4GtU:
     case kArm64I32x4GeU:
     case kArm64I16x8Splat:
     case kArm64I16x8ExtractLane:
     case kArm64I16x8ReplaceLane:
     case kArm64I16x8SConvertI8x16Low:
     case kArm64I16x8SConvertI8x16High:
     case kArm64I16x8Neg:
     case kArm64I16x8Shl:
     case kArm64I16x8ShrS:
     case kArm64I16x8SConvertI32x4:
     case kArm64I16x8Add:
     case kArm64I16x8AddSaturateS:
     case kArm64I16x8AddHoriz:
     case kArm64I16x8Sub:
     case kArm64I16x8SubSaturateS:
     case kArm64I16x8Mul:
     case kArm64I16x8MinS:
     case kArm64I16x8MaxS:
     case kArm64I16x8Eq:
     case kArm64I16x8Ne:
     case kArm64I16x8GtS:
     case kArm64I16x8GeS:
     case kArm64I16x8UConvertI8x16Low:
     case kArm64I16x8UConvertI8x16High:
     case kArm64I16x8ShrU:
     case kArm64I16x8UConvertI32x4:
     case kArm64I16x8AddSaturateU:
     case kArm64I16x8SubSaturateU:
     case kArm64I16x8MinU:
     case kArm64I16x8MaxU:
     case kArm64I16x8GtU:
     case kArm64I16x8GeU:
     case kArm64I8x16Splat:
     case kArm64I8x16ExtractLane:
     case kArm64I8x16ReplaceLane:
     case kArm64I8x16Neg:
     case kArm64I8x16Shl:
     case kArm64I8x16ShrS:
     case kArm64I8x16SConvertI16x8:
     case kArm64I8x16Add:
     case kArm64I8x16AddSaturateS:
     case kArm64I8x16Sub:
     case kArm64I8x16SubSaturateS:
     case kArm64I8x16Mul:
     case kArm64I8x16MinS:
     case kArm64I8x16MaxS:
     case kArm64I8x16Eq:
     case kArm64I8x16Ne:
     case kArm64I8x16GtS:
     case kArm64I8x16GeS:
     case kArm64I8x16UConvertI16x8:
     case kArm64I8x16AddSaturateU:
     case kArm64I8x16SubSaturateU:
     case kArm64I8x16ShrU:
     case kArm64I8x16MinU:
     case kArm64I8x16MaxU:
     case kArm64I8x16GtU:
     case kArm64I8x16GeU:
     case kArm64S128Zero:
     case kArm64S128Dup:
     case kArm64S128And:
     case kArm64S128Or:
     case kArm64S128Xor:
     case kArm64S128Not:
     case kArm64S128Select:
     case kArm64S32x4ZipLeft:
     case kArm64S32x4ZipRight:
     case kArm64S32x4UnzipLeft:
     case kArm64S32x4UnzipRight:
     case kArm64S32x4TransposeLeft:
     case kArm64S32x4TransposeRight:
     case kArm64S32x4Shuffle:
     case kArm64S16x8ZipLeft:
     case kArm64S16x8ZipRight:
     case kArm64S16x8UnzipLeft:
     case kArm64S16x8UnzipRight:
     case kArm64S16x8TransposeLeft:
     case kArm64S16x8TransposeRight:
     case kArm64S8x16ZipLeft:
     case kArm64S8x16ZipRight:
     case kArm64S8x16UnzipLeft:
     case kArm64S8x16UnzipRight:
     case kArm64S8x16TransposeLeft:
     case kArm64S8x16TransposeRight:
     case kArm64S8x16Concat:
     case kArm64S8x16Shuffle:
     case kArm64S32x2Reverse:
     case kArm64S16x4Reverse:
     case kArm64S16x2Reverse:
     case kArm64S8x8Reverse:
     case kArm64S8x4Reverse:
     case kArm64S8x2Reverse:
     case kArm64S1x4AnyTrue:
     case kArm64S1x4AllTrue:
     case kArm64S1x8AnyTrue:
     case kArm64S1x8AllTrue:
     case kArm64S1x16AnyTrue:
     case kArm64S1x16AllTrue:
       return kNoOpcodeFlags;

     case kArm64TestAndBranch32:
     case kArm64TestAndBranch:
     case kArm64CompareAndBranch32:
     case kArm64CompareAndBranch:
       return kIsBlockTerminator;

     case kArm64LdrS:
     case kArm64LdrD:
     case kArm64LdrQ:
     case kArm64Ldrb:
     case kArm64Ldrsb:
     case kArm64Ldrh:
     case kArm64Ldrsh:
     case kArm64Ldrsw:
     case kArm64LdrW:
     case kArm64Ldr:
     case kArm64Peek:
       return kIsLoadOperation;

     case kArm64Claim:
     case kArm64Poke:
     case kArm64PokePair:
     case kArm64StrS:
     case kArm64StrD:
     case kArm64StrQ:
     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();
 }


 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 kArm64Add:
     case kArm64Add32:
     case kArm64And:
     case kArm64And32:
     case kArm64Bic:
     case kArm64Bic32:
     case kArm64Cmn:
     case kArm64Cmn32:
     case kArm64Cmp:
     case kArm64Cmp32:
     case kArm64Eon:
     case kArm64Eon32:
     case kArm64Eor:
     case kArm64Eor32:
     case kArm64Not:
     case kArm64Not32:
     case kArm64Or:
     case kArm64Or32:
     case kArm64Orn:
     case kArm64Orn32:
     case kArm64Sub:
     case kArm64Sub32:
     case kArm64Tst:
     case kArm64Tst32:
       if (instr->addressing_mode() != kMode_None) {
         return 3;
       } else {
         return 1;
       }

     case kArm64Clz:
     case kArm64Clz32:
     case kArm64Sbfx32:
     case kArm64Sxtb32:
     case kArm64Sxth32:
     case kArm64Sxtw:
     case kArm64Ubfiz32:
     case kArm64Ubfx:
     case kArm64Ubfx32:
       return 1;

     case kArm64Lsl:
     case kArm64Lsl32:
     case kArm64Lsr:
     case kArm64Lsr32:
     case kArm64Asr:
     case kArm64Asr32:
     case kArm64Ror:
     case kArm64Ror32:
       return 1;

     case kArm64Ldr:
     case kArm64LdrD:
     case kArm64LdrS:
     case kArm64LdrW:
     case kArm64Ldrb:
     case kArm64Ldrh:
     case kArm64Ldrsb:
     case kArm64Ldrsh:
     case kArm64Ldrsw:
       return 11;

     case kArm64Str:
     case kArm64StrD:
     case kArm64StrS:
     case kArm64StrW:
     case kArm64Strb:
     case kArm64Strh:
       return 1;

     case kArm64Madd32:
     case kArm64Mneg32:
     case kArm64Msub32:
     case kArm64Mul32:
       return 3;

     case kArm64Madd:
     case kArm64Mneg:
     case kArm64Msub:
     case kArm64Mul:
       return 5;

     case kArm64Idiv32:
     case kArm64Udiv32:
       return 12;

     case kArm64Idiv:
     case kArm64Udiv:
       return 20;

     case kArm64Float32Add:
     case kArm64Float32Sub:
     case kArm64Float64Add:
     case kArm64Float64Sub:
       return 5;

     case kArm64Float32Abs:
     case kArm64Float32Cmp:
     case kArm64Float32Neg:
     case kArm64Float64Abs:
     case kArm64Float64Cmp:
     case kArm64Float64Neg:
       return 3;

     case kArm64Float32Div:
     case kArm64Float32Sqrt:
       return 12;

     case kArm64Float64Div:
     case kArm64Float64Sqrt:
       return 19;

     case kArm64Float32RoundDown:
     case kArm64Float32RoundTiesEven:
     case kArm64Float32RoundTruncate:
     case kArm64Float32RoundUp:
     case kArm64Float64RoundDown:
     case kArm64Float64RoundTiesAway:
     case kArm64Float64RoundTiesEven:
     case kArm64Float64RoundTruncate:
     case kArm64Float64RoundUp:
       return 5;

     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:
       return 5;

     default:
       return 2;
   }
 }

 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
	// 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 kArm64Rbit:
	case kArm64Rbit32:
	case kArm64Float32Cmp:
	case kArm64Float32Add:
	case kArm64Float32Sub:
	case kArm64Float32Mul:
	case kArm64Float32Div:
	case kArm64Float32Abs:
	case kArm64Float32Neg:
	case kArm64Float32Sqrt:
	case kArm64Float32RoundDown:
	case kArm64Float32Max:
	case kArm64Float32Min:
	case kArm64Float64Cmp:
	case kArm64Float64Add:
	case kArm64Float64Sub:
	case kArm64Float64Mul:
	case kArm64Float64Div:
	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 kArm64Float32ToInt32:
	case kArm64Float64ToInt32:
	case kArm64Float32ToUint32:
	case kArm64Float64ToUint32:
	case kArm64Float32ToInt64:
	case kArm64Float64ToInt64:
	case kArm64Float32ToUint64:
	case kArm64Float64ToUint64:
	case kArm64Int32ToFloat32:
	case kArm64Int32ToFloat64:
	case kArm64Int64ToFloat32:
	case kArm64Int64ToFloat64:
	case kArm64Uint32ToFloat32:
	case kArm64Uint32ToFloat64:
	case kArm64Uint64ToFloat32:
	case kArm64Uint64ToFloat64:
	case kArm64Float64ExtractLowWord32:
	case kArm64Float64ExtractHighWord32:
	case kArm64Float64InsertLowWord32:
	case kArm64Float64InsertHighWord32:
	case kArm64Float64Mod:
	case kArm64Float64MoveU64:
	case kArm64U64MoveFloat64:
	case kArm64Float64SilenceNaN:
	case kArm64F32x4Splat:
	case kArm64F32x4ExtractLane:
	case kArm64F32x4ReplaceLane:
	case kArm64F32x4SConvertI32x4:
	case kArm64F32x4UConvertI32x4:
	case kArm64F32x4Abs:
	case kArm64F32x4Neg:
	case kArm64F32x4RecipApprox:
	case kArm64F32x4RecipSqrtApprox:
	case kArm64F32x4Add:
	case kArm64F32x4AddHoriz:
	case kArm64F32x4Sub:
	case kArm64F32x4Mul:
	case kArm64F32x4Min:
	case kArm64F32x4Max:
	case kArm64F32x4Eq:
	case kArm64F32x4Ne:
	case kArm64F32x4Lt:
	case kArm64F32x4Le:
	case kArm64I32x4Splat:
	case kArm64I32x4ExtractLane:
	case kArm64I32x4ReplaceLane:
	case kArm64I32x4SConvertF32x4:
	case kArm64I32x4SConvertI16x8Low:
	case kArm64I32x4SConvertI16x8High:
	case kArm64I32x4Neg:
	case kArm64I32x4Shl:
	case kArm64I32x4ShrS:
	case kArm64I32x4Add:
	case kArm64I32x4AddHoriz:
	case kArm64I32x4Sub:
	case kArm64I32x4Mul:
	case kArm64I32x4MinS:
	case kArm64I32x4MaxS:
	case kArm64I32x4Eq:
	case kArm64I32x4Ne:
	case kArm64I32x4GtS:
	case kArm64I32x4GeS:
	case kArm64I32x4UConvertF32x4:
	case kArm64I32x4UConvertI16x8Low:
	case kArm64I32x4UConvertI16x8High:
	case kArm64I32x4ShrU:
	case kArm64I32x4MinU:
	case kArm64I32x4MaxU:
	case kArm64I32x4GtU:
	case kArm64I32x4GeU:
	case kArm64I16x8Splat:
	case kArm64I16x8ExtractLane:
	case kArm64I16x8ReplaceLane:
	case kArm64I16x8SConvertI8x16Low:
	case kArm64I16x8SConvertI8x16High:
	case kArm64I16x8Neg:
	case kArm64I16x8Shl:
	case kArm64I16x8ShrS:
	case kArm64I16x8SConvertI32x4:
	case kArm64I16x8Add:
	case kArm64I16x8AddSaturateS:
	case kArm64I16x8AddHoriz:
	case kArm64I16x8Sub:
	case kArm64I16x8SubSaturateS:
	case kArm64I16x8Mul:
	case kArm64I16x8MinS:
	case kArm64I16x8MaxS:
	case kArm64I16x8Eq:
	case kArm64I16x8Ne:
	case kArm64I16x8GtS:
	case kArm64I16x8GeS:
	case kArm64I16x8UConvertI8x16Low:
	case kArm64I16x8UConvertI8x16High:
	case kArm64I16x8ShrU:
	case kArm64I16x8UConvertI32x4:
	case kArm64I16x8AddSaturateU:
	case kArm64I16x8SubSaturateU:
	case kArm64I16x8MinU:
	case kArm64I16x8MaxU:
	case kArm64I16x8GtU:
	case kArm64I16x8GeU:
	case kArm64I8x16Splat:
	case kArm64I8x16ExtractLane:
	case kArm64I8x16ReplaceLane:
	case kArm64I8x16Neg:
	case kArm64I8x16Shl:
	case kArm64I8x16ShrS:
	case kArm64I8x16SConvertI16x8:
	case kArm64I8x16Add:
	case kArm64I8x16AddSaturateS:
	case kArm64I8x16Sub:
	case kArm64I8x16SubSaturateS:
	case kArm64I8x16Mul:
	case kArm64I8x16MinS:
	case kArm64I8x16MaxS:
	case kArm64I8x16Eq:
	case kArm64I8x16Ne:
	case kArm64I8x16GtS:
	case kArm64I8x16GeS:
	case kArm64I8x16UConvertI16x8:
	case kArm64I8x16AddSaturateU:
	case kArm64I8x16SubSaturateU:
	case kArm64I8x16ShrU:
	case kArm64I8x16MinU:
	case kArm64I8x16MaxU:
	case kArm64I8x16GtU:
	case kArm64I8x16GeU:
	case kArm64S128Zero:
	case kArm64S128Dup:
	case kArm64S128And:
	case kArm64S128Or:
	case kArm64S128Xor:
	case kArm64S128Not:
	case kArm64S128Select:
	case kArm64S32x4ZipLeft:
	case kArm64S32x4ZipRight:
	case kArm64S32x4UnzipLeft:
	case kArm64S32x4UnzipRight:
	case kArm64S32x4TransposeLeft:
	case kArm64S32x4TransposeRight:
	case kArm64S32x4Shuffle:
	case kArm64S16x8ZipLeft:
	case kArm64S16x8ZipRight:
	case kArm64S16x8UnzipLeft:
	case kArm64S16x8UnzipRight:
	case kArm64S16x8TransposeLeft:
	case kArm64S16x8TransposeRight:
	case kArm64S8x16ZipLeft:
	case kArm64S8x16ZipRight:
	case kArm64S8x16UnzipLeft:
	case kArm64S8x16UnzipRight:
	case kArm64S8x16TransposeLeft:
	case kArm64S8x16TransposeRight:
	case kArm64S8x16Concat:
	case kArm64S8x16Shuffle:
	case kArm64S32x2Reverse:
	case kArm64S16x4Reverse:
	case kArm64S16x2Reverse:
	case kArm64S8x8Reverse:
	case kArm64S8x4Reverse:
	case kArm64S8x2Reverse:
	case kArm64S1x4AnyTrue:
	case kArm64S1x4AllTrue:
	case kArm64S1x8AnyTrue:
	case kArm64S1x8AllTrue:
	case kArm64S1x16AnyTrue:
	case kArm64S1x16AllTrue:
	return kNoOpcodeFlags;

	case kArm64TestAndBranch32:
	case kArm64TestAndBranch:
	case kArm64CompareAndBranch32:
	case kArm64CompareAndBranch:
	return kIsBlockTerminator;

	case kArm64LdrS:
	case kArm64LdrD:
	case kArm64LdrQ:
	case kArm64Ldrb:
	case kArm64Ldrsb:
	case kArm64Ldrh:
	case kArm64Ldrsh:
	case kArm64Ldrsw:
	case kArm64LdrW:
	case kArm64Ldr:
	case kArm64Peek:
	return kIsLoadOperation;

	case kArm64Claim:
	case kArm64Poke:
	case kArm64PokePair:
	case kArm64StrS:
	case kArm64StrD:
	case kArm64StrQ:
	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();
	}


	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 kArm64Add:
	case kArm64Add32:
	case kArm64And:
	case kArm64And32:
	case kArm64Bic:
	case kArm64Bic32:
	case kArm64Cmn:
	case kArm64Cmn32:
	case kArm64Cmp:
	case kArm64Cmp32:
	case kArm64Eon:
	case kArm64Eon32:
	case kArm64Eor:
	case kArm64Eor32:
	case kArm64Not:
	case kArm64Not32:
	case kArm64Or:
	case kArm64Or32:
	case kArm64Orn:
	case kArm64Orn32:
	case kArm64Sub:
	case kArm64Sub32:
	case kArm64Tst:
	case kArm64Tst32:
	if (instr->addressing_mode() != kMode_None) {
	return 3;
	} else {
	return 1;
	}

	case kArm64Clz:
	case kArm64Clz32:
	case kArm64Sbfx32:
	case kArm64Sxtb32:
	case kArm64Sxth32:
	case kArm64Sxtw:
	case kArm64Ubfiz32:
	case kArm64Ubfx:
	case kArm64Ubfx32:
	return 1;

	case kArm64Lsl:
	case kArm64Lsl32:
	case kArm64Lsr:
	case kArm64Lsr32:
	case kArm64Asr:
	case kArm64Asr32:
	case kArm64Ror:
	case kArm64Ror32:
	return 1;

	case kArm64Ldr:
	case kArm64LdrD:
	case kArm64LdrS:
	case kArm64LdrW:
	case kArm64Ldrb:
	case kArm64Ldrh:
	case kArm64Ldrsb:
	case kArm64Ldrsh:
	case kArm64Ldrsw:
	return 11;

	case kArm64Str:
	case kArm64StrD:
	case kArm64StrS:
	case kArm64StrW:
	case kArm64Strb:
	case kArm64Strh:
	return 1;

	case kArm64Madd32:
	case kArm64Mneg32:
	case kArm64Msub32:
	case kArm64Mul32:
	return 3;

	case kArm64Madd:
	case kArm64Mneg:
	case kArm64Msub:
	case kArm64Mul:
	return 5;

	case kArm64Idiv32:
	case kArm64Udiv32:
	return 12;

	case kArm64Idiv:
	case kArm64Udiv:
	return 20;

	case kArm64Float32Add:
	case kArm64Float32Sub:
	case kArm64Float64Add:
	case kArm64Float64Sub:
	return 5;

	case kArm64Float32Abs:
	case kArm64Float32Cmp:
	case kArm64Float32Neg:
	case kArm64Float64Abs:
	case kArm64Float64Cmp:
	case kArm64Float64Neg:
	return 3;

	case kArm64Float32Div:
	case kArm64Float32Sqrt:
	return 12;

	case kArm64Float64Div:
	case kArm64Float64Sqrt:
	return 19;

	case kArm64Float32RoundDown:
	case kArm64Float32RoundTiesEven:
	case kArm64Float32RoundTruncate:
	case kArm64Float32RoundUp:
	case kArm64Float64RoundDown:
	case kArm64Float64RoundTiesAway:
	case kArm64Float64RoundTiesEven:
	case kArm64Float64RoundTruncate:
	case kArm64Float64RoundUp:
	return 5;

	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:
	return 5;

	default:
	return 2;
	}
	}

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