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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); | |
titzer
2016/07/13 19:45:09
Is it possible to cache these signatures? You coul
gdeepti
2016/07/15 08:26:40
Added signatures as static variables, signatures a
| |
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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