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| 1 // Copyright 2016 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/simd-lowering.h" | |
| 6 | |
| 7 namespace v8 { | |
| 8 namespace internal { | |
| 9 namespace compiler { | |
| 10 | |
| 11 SimdLowering::~SimdLowering() {} | |
| 12 | |
| 13 void SimdLowering::InitializeSignatures() { | |
| 14 // Initialize signatures for runtime calls | |
| 15 const int kReturnCount = 1; | |
| 16 const int kBinop = 2; | |
| 17 const int kSimd32x4 = 4; | |
| 18 const int kSimd16x8 = 8; | |
| 19 const int kSimd8x16 = 16; | |
| 20 | |
| 21 ConversionSignature::Builder CreateInt32x4Builder(zone_, kReturnCount, | |
| 22 kSimd32x4); | |
| 23 ConversionSignature::Builder CreateFloat32x4Builder(zone_, kReturnCount, | |
| 24 kSimd32x4); | |
| 25 ConversionSignature::Builder CreateInt16x8Builder(zone_, kReturnCount, | |
| 26 kSimd16x8); | |
| 27 ConversionSignature::Builder CreateInt8x16Builder(zone_, kReturnCount, | |
| 28 kSimd8x16); | |
| 29 ConversionSignature::Builder ExtractLaneIntBuilder(zone_, kReturnCount, | |
| 30 kBinop); | |
| 31 ConversionSignature::Builder ExtractLaneFloatBuilder(zone_, kReturnCount, | |
| 32 kBinop); | |
| 33 ConversionSignature::Builder DefaultBuilder(zone_, kReturnCount, kSimd8x16); | |
| 34 | |
| 35 // Initialize Signatures for create functions | |
| 36 for (int i = 0; i < kSimd32x4; i++) { | |
| 37 CreateInt32x4Builder.AddParam(Conversion::kInt32); | |
| 38 CreateFloat32x4Builder.AddParam(Conversion::kFloat32); | |
| 39 } | |
| 40 CreateInt32x4Builder.AddReturn(Conversion::kOpaque); | |
| 41 SigCreateInt32x4 = CreateInt32x4Builder.Build(); | |
| 42 | |
| 43 CreateFloat32x4Builder.AddReturn(Conversion::kOpaque); | |
| 44 SigCreateFloat32x4 = CreateFloat32x4Builder.Build(); | |
| 45 | |
| 46 for (int i = 0; i < kSimd16x8; i++) { | |
| 47 CreateInt16x8Builder.AddParam(Conversion::kInt32); | |
| 48 } | |
| 49 CreateInt16x8Builder.AddReturn(Conversion::kOpaque); | |
| 50 SigCreateInt16x8 = CreateInt16x8Builder.Build(); | |
| 51 | |
| 52 for (int i = 0; i < kSimd8x16; i++) { | |
| 53 CreateInt8x16Builder.AddParam(Conversion::kInt32); | |
| 54 } | |
| 55 CreateInt8x16Builder.AddReturn(Conversion::kOpaque); | |
| 56 SigCreateInt8x16 = CreateInt8x16Builder.Build(); | |
| 57 | |
| 58 // Initialize signatures for ExtractLane functions | |
| 59 ExtractLaneIntBuilder.AddParam(Conversion::kOpaque); | |
| 60 ExtractLaneIntBuilder.AddParam(Conversion::kInt32); | |
| 61 ExtractLaneIntBuilder.AddReturn(Conversion::kInt32); | |
| 62 SigExtractLaneInt = ExtractLaneIntBuilder.Build(); | |
| 63 } | |
| 64 | |
| 65 Reduction SimdLowering::Reduce(Node* node) { | |
| 66 // For now lower everything to runtime calls. | |
| 67 switch (node->opcode()) { | |
| 68 case IrOpcode::kCreateInt32x4: { | |
| 69 return Replace(builder_->ChangeToRuntimeCall( | |
| 70 node, Runtime::kCreateInt32x4, SigCreateInt32x4)); | |
| 71 } | |
| 72 case IrOpcode::kCreateInt16x8: { | |
| 73 return Replace(builder_->ChangeToRuntimeCall( | |
| 74 node, Runtime::kCreateInt16x8, SigCreateInt16x8)); | |
| 75 } | |
| 76 case IrOpcode::kCreateInt8x16: { | |
| 77 return Replace(builder_->ChangeToRuntimeCall( | |
| 78 node, Runtime::kCreateInt8x16, SigCreateInt8x16)); | |
| 79 } | |
| 80 case IrOpcode::kCreateFloat32x4: { | |
| 81 return Replace(builder_->ChangeToRuntimeCall( | |
| 82 node, Runtime::kCreateFloat32x4, SigCreateFloat32x4)); | |
| 83 } | |
| 84 case IrOpcode::kInt8x16ExtractLane: | |
| 85 case IrOpcode::kInt16x8ExtractLane: | |
| 86 case IrOpcode::kInt32x4ExtractLane: { | |
| 87 return Replace(builder_->ChangeToRuntimeCall( | |
| 88 node, Runtime::kInt32x4ExtractLane, SigExtractLaneInt)); | |
| 89 } | |
| 90 case IrOpcode::kFloat32x4ExtractLane: { | |
| 91 return Replace(builder_->ChangeToRuntimeCall( | |
| 92 node, Runtime::kFloat32x4ExtractLane, SigExtractLaneFloat)); | |
| 93 } | |
| 94 default: { break; } | |
| 95 } | |
| 96 | |
| 97 // TODO(gdeepti): Implement and test. | |
| 98 // Assume the others are all just simd in and out. | |
| 99 switch (node->opcode()) { | |
| 100 #define F(Opcode) \ | |
| 101 case IrOpcode::k##Opcode: { \ | |
| 102 return Replace( \ | |
| 103 builder_->ChangeToRuntimeCall(node, Runtime::k##Opcode, SigDefault)); \ | |
| 104 } | |
| 105 MACHINE_SIMD_RETURN_SIMD_OP_LIST(F) | |
| 106 MACHINE_SIMD_RETURN_BOOL_OP_LIST(F) | |
| 107 #undef F | |
| 108 default: { return NoChange(); } | |
| 109 } | |
| 110 UNREACHABLE(); | |
| 111 return NoChange(); | |
| 112 } | |
| 113 | |
| 114 } // namespace compiler | |
| 115 } // namespace internal | |
| 116 } // namespace v8 | |
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Chromium Code Reviews
Issue 2235013002:
Revert runtime lowering of wasm SIMD ops (Closed)
Base URL: https://chromium.googlesource.com/v8/v8.git@master