src/compiler/ia32/instruction-scheduler-ia32.cc - Issue 1375253002: [WIP][turbofan] Instruction scheduler for Turbofan.

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Issue 1375253002: [WIP][turbofan] Instruction scheduler for Turbofan. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: Addressed issues and add support for a few other platforms. Created 5 years, 1 month ago

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	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

	3 // found in the LICENSE file.

	4

	5 #include "src/compiler/instruction-scheduler.h"

	6

	7 namespace v8 {

	8 namespace internal {

	9 namespace compiler {

	10

	11 int InstructionScheduler::GetTargetInstructionFlags(

	12 const Instruction* instr) const {

	13 switch (instr->arch_opcode()) {

	14 case kIA32Add:

	15 case kIA32And:

	16 case kIA32Cmp:

	17 case kIA32Test:

	18 case kIA32Or:

	19 case kIA32Xor:

	20 case kIA32Sub:

	21 case kIA32Imul:

	22 case kIA32ImulHigh:

	23 case kIA32UmulHigh:

	24 case kIA32Idiv:

	25 case kIA32Udiv:

	26 case kIA32Not:

	27 case kIA32Neg:

	28 case kIA32Shl:

	29 case kIA32Shr:

	30 case kIA32Sar:

	31 case kIA32Ror:

	32 case kIA32Lzcnt:

	33 case kIA32Tzcnt:

	34 case kIA32Popcnt:

	35 case kIA32Lea:

	36 case kSSEFloat32Cmp:

	37 case kSSEFloat32Add:

	38 case kSSEFloat32Sub:

	39 case kSSEFloat32Mul:

	40 case kSSEFloat32Div:

	41 case kSSEFloat32Max:

	42 case kSSEFloat32Min:

	43 case kSSEFloat32Abs:

	44 case kSSEFloat32Neg:

	45 case kSSEFloat32Sqrt:

	46 case kSSEFloat64Cmp:

	47 case kSSEFloat64Add:

	48 case kSSEFloat64Sub:

	49 case kSSEFloat64Mul:

	50 case kSSEFloat64Div:

	51 case kSSEFloat64Mod:

	52 case kSSEFloat64Max:

	53 case kSSEFloat64Min:

	54 case kSSEFloat64Abs:

	55 case kSSEFloat64Neg:

	56 case kSSEFloat64Sqrt:

	57 case kSSEFloat64Round:

	58 case kSSEFloat32ToFloat64:

	59 case kSSEFloat64ToFloat32:

	60 case kSSEFloat64ToInt32:

	61 case kSSEFloat64ToUint32:

	62 case kSSEInt32ToFloat64:

	63 case kSSEUint32ToFloat64:

	64 case kSSEFloat64ExtractLowWord32:

	65 case kSSEFloat64ExtractHighWord32:

	66 case kSSEFloat64InsertLowWord32:

	67 case kSSEFloat64InsertHighWord32:

	68 case kSSEFloat64LoadLowWord32:

	69 case kAVXFloat32Add:

	70 case kAVXFloat32Sub:

	71 case kAVXFloat32Mul:

	72 case kAVXFloat32Div:

	73 case kAVXFloat32Max:

	74 case kAVXFloat32Min:

	75 case kAVXFloat64Add:

	76 case kAVXFloat64Sub:

	77 case kAVXFloat64Mul:

	78 case kAVXFloat64Div:

	79 case kAVXFloat64Max:

	80 case kAVXFloat64Min:

	81 case kAVXFloat64Abs:

	82 case kAVXFloat64Neg:

	83 case kAVXFloat32Abs:

	84 case kAVXFloat32Neg:

	85 case kIA32BitcastFI:

	86 case kIA32BitcastIF:

	87 // TODO(all): Do we need to check if these instructions read/store

	88 // stack slots?

	89 return kNoOpcodeFlags;

	90

	91 case kIA32Movsxbl:

	92 case kIA32Movzxbl:

	93 case kIA32Movb:

	94 case kIA32Movsxwl:

	95 case kIA32Movzxwl:

	96 case kIA32Movw:

	97 case kIA32Movl:

	98 case kIA32Movss:

	99 case kIA32Movsd:

	100 // Moves are used for memory load/store operations.

	101 return instr->HasOutput() ? kIsLoadOperation : kHasSideEffect;

	102

	103 case kIA32StackCheck:

	104 return kIsLoadOperation;

	105

	106 case kIA32Push:

	107 case kIA32Poke:

	108 return kHasSideEffect;

	109

	110 #define CASE(Name) case k##Name:

	111 COMMON_ARCH_OPCODE_LIST(CASE)

	112 #undef CASE

	113 // Already covered in architecture independent code.

	114 UNREACHABLE();

	115 }

	116 }

	117

	118

	119 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {

	120 // TODO(all): Add instruction cost modeling.

	121 return 1;

	122 }

	123

	124 } // namespace compiler

	125 } // namespace internal

	126 } // namespace v8

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