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Issue 1233373003: Version 4.6.10.1 (cherry-pick) (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@4.6.10
Patch Set: Created 5 years, 5 months 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/v8.h"
6
7 #include "src/arguments.h"
8 #include "src/base/macros.h"
9 #include "src/conversions.h"
10 #include "src/runtime/runtime-utils.h"
11
12 // Implement Single Instruction Multiple Data (SIMD) operations as defined in
13 // the SIMD.js draft spec:
14 // http://littledan.github.io/simd.html
15
16 #define NumberToFloat32x4Component NumberToFloat
17
18 #define CONVERT_SIMD_LANE_ARG_CHECKED(name, index, lanes) \
19 RUNTIME_ASSERT(args[index]->IsSmi()); \
20 int name = args.smi_at(index); \
21 RUNTIME_ASSERT(name >= 0 && name < lanes);
22
23 #define SIMD4_CREATE_FUNCTION(type) \
24 RUNTIME_FUNCTION(Runtime_Create##type) { \
25 HandleScope scope(isolate); \
26 DCHECK(args.length() == 4); \
27 CONVERT_NUMBER_ARG_HANDLE_CHECKED(w, 0); \
28 CONVERT_NUMBER_ARG_HANDLE_CHECKED(x, 1); \
29 CONVERT_NUMBER_ARG_HANDLE_CHECKED(y, 2); \
30 CONVERT_NUMBER_ARG_HANDLE_CHECKED(z, 3); \
31 return *isolate->factory()->NewFloat32x4( \
32 NumberTo##type##Component(*w), NumberTo##type##Component(*x), \
33 NumberTo##type##Component(*y), NumberTo##type##Component(*z)); \
34 }
35
36 #define SIMD_CREATE_WRAPPER_FUNCTION(type) \
37 RUNTIME_FUNCTION(Runtime_New##type##Wrapper) { \
38 HandleScope scope(isolate); \
39 DCHECK(args.length() == 1); \
40 CONVERT_ARG_HANDLE_CHECKED(type, value, 0); \
41 return *Object::ToObject(isolate, value).ToHandleChecked(); \
42 }
43
44 #define SIMD_CHECK_FUNCTION(type) \
45 RUNTIME_FUNCTION(Runtime_##type##Check) { \
46 HandleScope scope(isolate); \
47 CONVERT_ARG_HANDLE_CHECKED(type, a, 0); \
48 return *a; \
49 }
50
51 #define SIMD_EXTRACT_LANE_FUNCTION(type, lanes) \
52 RUNTIME_FUNCTION(Runtime_##type##ExtractLane) { \
53 HandleScope scope(isolate); \
54 DCHECK(args.length() == 2); \
55 CONVERT_ARG_HANDLE_CHECKED(type, a, 0); \
56 CONVERT_SIMD_LANE_ARG_CHECKED(lane, 1, lanes); \
57 return *isolate->factory()->NewNumber(a->get_lane(lane)); \
58 }
59
60 #define SIMD4_EQUALS_FUNCTION(type) \
61 RUNTIME_FUNCTION(Runtime_##type##Equals) { \
62 HandleScope scope(isolate); \
63 DCHECK(args.length() == 2); \
64 CONVERT_ARG_HANDLE_CHECKED(type, a, 0); \
65 CONVERT_ARG_HANDLE_CHECKED(type, b, 1); \
66 return Equals(a->get_lane(0), b->get_lane(0)) && \
67 Equals(a->get_lane(1), b->get_lane(1)) && \
68 Equals(a->get_lane(2), b->get_lane(2)) && \
69 Equals(a->get_lane(3), b->get_lane(3)) \
70 ? Smi::FromInt(EQUAL) \
71 : Smi::FromInt(NOT_EQUAL); \
72 }
73
74 #define SIMD4_SAME_VALUE_FUNCTION(type) \
75 RUNTIME_FUNCTION(Runtime_##type##SameValue) { \
76 HandleScope scope(isolate); \
77 DCHECK(args.length() == 2); \
78 CONVERT_ARG_HANDLE_CHECKED(type, a, 0); \
79 CONVERT_ARG_HANDLE_CHECKED(type, b, 1); \
80 return isolate->heap()->ToBoolean( \
81 SameValue(a->get_lane(0), b->get_lane(0)) && \
82 SameValue(a->get_lane(1), b->get_lane(1)) && \
83 SameValue(a->get_lane(2), b->get_lane(2)) && \
84 SameValue(a->get_lane(3), b->get_lane(3))); \
85 }
86
87 #define SIMD4_SAME_VALUE_ZERO_FUNCTION(type) \
88 RUNTIME_FUNCTION(Runtime_##type##SameValueZero) { \
89 HandleScope scope(isolate); \
90 DCHECK(args.length() == 2); \
91 CONVERT_ARG_HANDLE_CHECKED(type, a, 0); \
92 CONVERT_ARG_HANDLE_CHECKED(type, b, 1); \
93 return isolate->heap()->ToBoolean( \
94 SameValueZero(a->get_lane(0), b->get_lane(0)) && \
95 SameValueZero(a->get_lane(1), b->get_lane(1)) && \
96 SameValueZero(a->get_lane(2), b->get_lane(2)) && \
97 SameValueZero(a->get_lane(3), b->get_lane(3))); \
98 }
99
100 #define SIMD4_EXTRACT_LANE_FUNCTION(type) SIMD_EXTRACT_LANE_FUNCTION(type, 4)
101
102 #define SIMD4_FUNCTIONS(type) \
103 SIMD4_CREATE_FUNCTION(type) \
104 SIMD_CREATE_WRAPPER_FUNCTION(type) \
105 SIMD_CHECK_FUNCTION(type) \
106 SIMD4_EXTRACT_LANE_FUNCTION(type) \
107 SIMD4_EQUALS_FUNCTION(type) \
108 SIMD4_SAME_VALUE_FUNCTION(type) \
109 SIMD4_SAME_VALUE_ZERO_FUNCTION(type)
110
111
112 namespace v8 {
113 namespace internal {
114
115 namespace {
116
117 // Convert from Number object to float.
118 inline float NumberToFloat(Object* number) {
119 return DoubleToFloat32(number->Number());
120 }
121
122
123 inline bool Equals(float x, float y) { return x == y; }
124
125 } // namespace
126
127 SIMD4_FUNCTIONS(Float32x4)
128 }
129 } // namespace v8::internal
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