1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \
// RUN: dxil-pc-shadermodel6.3-library %s -emit-llvm -disable-llvm-passes \
// RUN: -o - | FileCheck %s
// CHECK-LABEL: ToTwoInts
// CHECK: [[splat:%.*]] = insertelement <1 x i32> poison, i32 {{.*}}, i64 0
// CHECK: [[vec2:%.*]] = shufflevector <1 x i32> [[splat]], <1 x i32> poison, <2 x i32> zeroinitializer
// CHECK: ret <2 x i32> [[vec2]]
int2 ToTwoInts(int V){
return V.xx;
}
// CHECK-LABEL: ToFourFloats
// [[splat:%.*]] = insertelement <1 x float> poison, float {{.*}}, i64 0
// [[vec4:%.*]] = shufflevector <1 x float> [[splat]], <1 x float> poison, <4 x i32> zeroinitializer
// ret <4 x float> [[vec4]]
float4 ToFourFloats(float V){
return V.rrrr;
}
// CHECK-LABEL: FillOne
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x i32>, align 4
// CHECK: store <1 x i32> <i32 1>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec1:%.*]] = load <1 x i32>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec2:%.*]] = shufflevector <1 x i32> [[vec1]], <1 x i32> poison, <2 x i32> zeroinitializer
// CHECK: ret <2 x i32> [[vec2]]
int2 FillOne(){
return 1.xx;
}
// CHECK-LABEL: FillOneUnsigned
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x i32>, align 4
// CHECK: store <1 x i32> <i32 1>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec1:%.*]] = load <1 x i32>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec3:%.*]] = shufflevector <1 x i32> [[vec1]], <1 x i32> poison, <3 x i32> zeroinitializer
// CHECK: ret <3 x i32> [[vec3]]
uint3 FillOneUnsigned(){
return 1u.xxx;
}
// CHECK-LABEL: FillOneUnsignedLong
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x i64>, align 8
// CHECK: store <1 x i64> <i64 1>, ptr [[vec1Ptr]], align 8
// CHECK: [[vec1:%.*]] = load <1 x i64>, ptr [[vec1Ptr]], align 8
// CHECK: [[vec4:%.*]] = shufflevector <1 x i64> [[vec1]], <1 x i64> poison, <4 x i32> zeroinitializer
// CHECK: ret <4 x i64> [[vec4]]
vector<uint64_t,4> FillOneUnsignedLong(){
return 1ul.xxxx;
}
// CHECK-LABEL: FillTwoPointFive
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x double>, align 8
// CHECK: store <1 x double> <double 2.500000e+00>, ptr [[vec1Ptr]], align 8
// CHECK: [[vec1:%.*]] = load <1 x double>, ptr [[vec1Ptr]], align 8
// CHECK: [[vec2:%.*]] = shufflevector <1 x double> [[vec1]], <1 x double> poison, <2 x i32> zeroinitializer
// CHECK: ret <2 x double> [[vec2]]
double2 FillTwoPointFive(){
return 2.5l.rr;
}
// CHECK-LABEL: FillOneHalf
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x double>, align 8
// CHECK: store <1 x double> <double 5.000000e-01>, ptr [[vec1Ptr]], align 8
// CHECK: [[vec1:%.*]] = load <1 x double>, ptr [[vec1Ptr]], align 8
// CHECK: [[vec3:%.*]] = shufflevector <1 x double> [[vec1]], <1 x double> poison, <3 x i32> zeroinitializer
// CHECK: ret <3 x double> [[vec3]]
double3 FillOneHalf(){
return .5l.rrr;
}
// CHECK-LABEL: FillTwoPointFiveFloat
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x float>, align 4
// CHECK: store <1 x float> <float 2.500000e+00>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec1:%.*]] = load <1 x float>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec4:%.*]] = shufflevector <1 x float> [[vec1]], <1 x float> poison, <4 x i32> zeroinitializer
// CHECK: ret <4 x float> [[vec4]]
float4 FillTwoPointFiveFloat(){
return 2.5f.rrrr;
}
// The initial codegen for this case is correct but a bit odd. The IR optimizer
// cleans this up very nicely.
// CHECK-LABEL: FillOneHalfFloat
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x float>, align 4
// CHECK: store <1 x float> <float 5.000000e-01>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec1:%.*]] = load <1 x float>, ptr [[vec1Ptr]], align 4
// CHECK: [[el0:%.*]] = extractelement <1 x float> [[vec1]], i32 0
// CHECK: [[vec1Splat:%.*]] = insertelement <1 x float> poison, float [[el0]], i64 0
// CHECK: [[vec1Ret:%.*]] = shufflevector <1 x float> [[vec1Splat]], <1 x float> poison, <1 x i32> zeroinitializer
// CHECK: ret <1 x float> [[vec1Ret]]
vector<float, 1> FillOneHalfFloat(){
return .5f.r;
}
// The initial codegen for this case is correct but a bit odd. The IR optimizer
// cleans this up very nicely.
// CHECK-LABEL: HowManyFloats
// CHECK: [[VAddr:%.*]] = alloca float, align 4
// CHECK: [[vec2Ptr:%.*]] = alloca <2 x float>, align 8
// CHECK: [[VVal:%.*]] = load float, ptr [[VAddr]], align 4
// CHECK: [[splat:%.*]] = insertelement <1 x float> poison, float [[VVal]], i64 0
// CHECK: [[vec2:%.*]] = shufflevector <1 x float> [[splat]], <1 x float> poison, <2 x i32> zeroinitializer
// CHECK: store <2 x float> [[vec2]], ptr [[vec2Ptr]], align 8
// CHECK: [[vec2:%.*]] = load <2 x float>, ptr [[vec2Ptr]], align 8
// CHECK: [[vec2Res:%.*]] = shufflevector <2 x float> [[vec2]], <2 x float> poison, <2 x i32> zeroinitializer
// CHECK: ret <2 x float> [[vec2Res]]
float2 HowManyFloats(float V) {
return V.rr.rr;
}
// This codegen is gnarly because `1.l` is a double, so this creates double
// vectors that need to be truncated down to floats. The optimizer cleans this
// up nicely too.
// CHECK-LABEL: AllRighty
// CHECK: [[Tmp:%.*]] = alloca <1 x double>, align 8
// CHECK: store <1 x double> <double 1.000000e+00>, ptr [[Tmp]], align 8
// CHECK: [[vec1:%.*]] = load <1 x double>, ptr [[Tmp]], align 8
// CHECK: [[vec3:%.*]] = shufflevector <1 x double> [[vec1]], <1 x double> poison, <3 x i32> zeroinitializer
// CHECK: [[vec3f:%.*]] = fptrunc <3 x double> [[vec3]] to <3 x float>
// CHECK: ret <3 x float> [[vec3f]]
float3 AllRighty() {
return 1.l.rrr;
}
// CHECK-LABEL: AllRighty2
// CHECK: [[vec1Ptr:%.*]] = alloca <1 x float>, align 4
// CHECK: store <1 x float> <float 1.000000e+00>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec1:%.*]] = load <1 x float>, ptr [[vec1Ptr]], align 4
// CHECK: [[vec3:%.*]] = shufflevector <1 x float> [[vec1]], <1 x float> poison, <3 x i32>
// CHECK: ret <3 x float> [[vec3]]
float3 AllRighty2() {
return 1..rrr;
}
// CHECK-LABEL: AssignInt
// CHECK: [[VAddr:%.*]] = alloca i32, align 4
// CHECK: [[XAddr:%.*]] = alloca i32, align 4
// Load V into a vector, then extract V out and store it to X.
// CHECK: [[V:%.*]] = load i32, ptr [[VAddr]], align 4
// CHECK: [[Splat:%.*]] = insertelement <1 x i32> poison, i32 [[V]], i64 0
// CHECK: [[VExtVal:%.*]] = extractelement <1 x i32> [[Splat]], i32 0
// CHECK: store i32 [[VExtVal]], ptr [[XAddr]], align 4
// Load V into two separate vectors, then add the extracted X components.
// CHECK: [[V:%.*]] = load i32, ptr [[VAddr]], align 4
// CHECK: [[Splat:%.*]] = insertelement <1 x i32> poison, i32 [[V]], i64 0
// CHECK: [[LHS:%.*]] = extractelement <1 x i32> [[Splat]], i32 0
// CHECK: [[V:%.*]] = load i32, ptr [[VAddr]], align 4
// CHECK: [[Splat:%.*]] = insertelement <1 x i32> poison, i32 [[V]], i64 0
// CHECK: [[RHS:%.*]] = extractelement <1 x i32> [[Splat]], i32 0
// CHECK: [[Sum:%.*]] = add nsw i32 [[LHS]], [[RHS]]
// CHECK: store i32 [[Sum]], ptr [[XAddr]], align 4
// CHECK: [[X:%.*]] = load i32, ptr [[XAddr]], align 4
// CHECK: ret i32 [[X]]
int AssignInt(int V){
int X = V.x;
X.x = V.x + V.x;
return X;
}
|
