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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 Reduction SimdLowering::Reduce(Node* node) { |
| 14 // For now lower everything to runtime calls. |
| 15 typedef Signature<Conversion> ConversionSignature; |
| 16 const int kReturnCount = 1; |
| 17 const int kSimd32x4 = 4; |
| 18 const int kSimd16x8 = 8; |
| 19 const int kSimd8x16 = 16; |
| 20 |
| 21 switch (node->opcode()) { |
| 22 case IrOpcode::kCreateInt32x4: { |
| 23 ConversionSignature::Builder conversions(zone_, kReturnCount, kSimd32x4); |
| 24 for (int i = 0; i < kSimd32x4; i++) { |
| 25 conversions.AddParam(Conversion::kInt32); |
| 26 } |
| 27 conversions.AddReturn(Conversion::kOpaque); |
| 28 return Replace(builder_->ChangeToRuntimeCall( |
| 29 node, Runtime::kCreateInt32x4, conversions.Build())); |
| 30 } |
| 31 case IrOpcode::kCreateInt16x8: { |
| 32 ConversionSignature::Builder conversions(zone_, kReturnCount, kSimd16x8); |
| 33 for (int i = 0; i < kSimd16x8; i++) { |
| 34 conversions.AddParam(Conversion::kInt32); |
| 35 } |
| 36 conversions.AddReturn(Conversion::kOpaque); |
| 37 return Replace(builder_->ChangeToRuntimeCall( |
| 38 node, Runtime::kCreateInt16x8, conversions.Build())); |
| 39 } |
| 40 case IrOpcode::kCreateInt8x16: { |
| 41 ConversionSignature::Builder conversions(zone_, kReturnCount, kSimd8x16); |
| 42 for (int i = 0; i < kSimd8x16; i++) { |
| 43 conversions.AddParam(Conversion::kInt32); |
| 44 } |
| 45 conversions.AddReturn(Conversion::kOpaque); |
| 46 return Replace(builder_->ChangeToRuntimeCall( |
| 47 node, Runtime::kCreateInt8x16, conversions.Build())); |
| 48 } |
| 49 case IrOpcode::kCreateFloat32x4: { |
| 50 ConversionSignature::Builder conversions(zone_, kReturnCount, kSimd32x4); |
| 51 for (int i = 0; i < kSimd32x4; i++) { |
| 52 conversions.AddParam(Conversion::kFloat32); |
| 53 } |
| 54 conversions.AddReturn(Conversion::kOpaque); |
| 55 return Replace(builder_->ChangeToRuntimeCall( |
| 56 node, Runtime::kCreateFloat32x4, conversions.Build())); |
| 57 } |
| 58 case IrOpcode::kInt8x16ExtractLane: |
| 59 case IrOpcode::kInt16x8ExtractLane: |
| 60 case IrOpcode::kInt32x4ExtractLane: { |
| 61 ConversionSignature::Builder conversions(zone_, 1, 2); |
| 62 conversions.AddParam(Conversion::kOpaque); |
| 63 conversions.AddParam(Conversion::kInt32); |
| 64 conversions.AddReturn(Conversion::kInt32); |
| 65 return Replace(builder_->ChangeToRuntimeCall( |
| 66 node, Runtime::kInt32x4ExtractLane, conversions.Build())); |
| 67 } |
| 68 case IrOpcode::kFloat32x4ExtractLane: { |
| 69 ConversionSignature::Builder conversions(zone_, 1, 2); |
| 70 conversions.AddParam(Conversion::kOpaque); |
| 71 conversions.AddParam(Conversion::kFloat32); |
| 72 conversions.AddReturn(Conversion::kFloat32); |
| 73 return Replace(builder_->ChangeToRuntimeCall( |
| 74 node, Runtime::kFloat32x4ExtractLane, conversions.Build())); |
| 75 } |
| 76 default: { break; } |
| 77 } |
| 78 |
| 79 // TODO(gdeepti): Implement and test. |
| 80 // Assume the others are all just simd in and out. |
| 81 ConversionSignature::Builder conversions(zone_, kReturnCount, kSimd8x16); |
| 82 for (int i = 0; i < kSimd8x16; i++) { |
| 83 conversions.AddParam(Conversion::kNone); |
| 84 } |
| 85 conversions.AddReturn(Conversion::kNone); |
| 86 switch (node->opcode()) { |
| 87 #define F(Opcode) \ |
| 88 case IrOpcode::k##Opcode: { \ |
| 89 return Replace(builder_->ChangeToRuntimeCall(node, Runtime::k##Opcode, \ |
| 90 conversions.Build())); \ |
| 91 } |
| 92 MACHINE_SIMD_RETURN_SIMD_OP_LIST(F) |
| 93 MACHINE_SIMD_RETURN_BOOL_OP_LIST(F) |
| 94 #undef F |
| 95 default: { return NoChange(); } |
| 96 } |
| 97 UNREACHABLE(); |
| 98 return NoChange(); |
| 99 } |
| 100 |
| 101 } // namespace compiler |
| 102 } // namespace internal |
| 103 } // namespace v8 |
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