aboutsummaryrefslogtreecommitdiff
path: root/llvm/test/CodeGen/DirectX/scalarize-dynamic-vector-index.ll
blob: 0eb65bd4fc75106b82108ada5117fd1fae6093c6 (plain)
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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes='dxil-data-scalarization' -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s

; Ensure that insertelement instructions have no side effects on each other
; even in the presence of control flow
define void @test_multiple_insert(i32 %c, i32 %i, i32 %j) {
; CHECK-LABEL: define void @test_multiple_insert(
; CHECK-SAME: i32 [[C:%.*]], i32 [[I:%.*]], i32 [[J:%.*]]) {
; CHECK-NEXT:    [[V0_ALLOCA:%.*]] = alloca [2 x i32], align 4
; CHECK-NEXT:    [[V_ALLOCA:%.*]] = alloca [2 x i32], align 4
; CHECK-NEXT:    [[V0_0:%.*]] = insertelement <2 x i32> poison, i32 0, i32 0
; CHECK-NEXT:    [[V0:%.*]] = insertelement <2 x i32> [[V0_0]], i32 0, i32 1
; CHECK-NEXT:    [[V0_EXTRACT0:%.*]] = extractelement <2 x i32> [[V0]], i64 0
; CHECK-NEXT:    [[V0_INDEX0:%.*]] = getelementptr inbounds [2 x i32], ptr [[V0_ALLOCA]], i32 0, i32 0
; CHECK-NEXT:    store i32 [[V0_EXTRACT0]], ptr [[V0_INDEX0]], align 4
; CHECK-NEXT:    [[V0_EXTRACT1:%.*]] = extractelement <2 x i32> [[V0]], i64 1
; CHECK-NEXT:    [[V0_INDEX1:%.*]] = getelementptr inbounds [2 x i32], ptr [[V0_ALLOCA]], i32 0, i32 1
; CHECK-NEXT:    store i32 [[V0_EXTRACT1]], ptr [[V0_INDEX1]], align 4
; CHECK-NEXT:    [[COND:%.*]] = icmp eq i32 [[C]], 1
; CHECK-NEXT:    br i1 [[COND]], label %[[IF:.*]], label %[[ELSE:.*]]
; CHECK:       [[IF]]:
; CHECK-NEXT:    [[V1_INDEX:%.*]] = getelementptr inbounds [2 x i32], ptr [[V0_ALLOCA]], i32 0, i32 [[I]]
; CHECK-NEXT:    [[V1_LOAD:%.*]] = load i32, ptr [[V1_INDEX]], align 4
; CHECK-NEXT:    store i32 1, ptr [[V1_INDEX]], align 4
; CHECK-NEXT:    [[V1_LOAD0:%.*]] = load i32, ptr [[V0_INDEX0]], align 4
; CHECK-NEXT:    [[V1_INSERT0:%.*]] = insertelement <2 x i32> poison, i32 [[V1_LOAD0]], i32 0
; CHECK-NEXT:    [[V1_LOAD1:%.*]] = load i32, ptr [[V0_INDEX1]], align 4
; CHECK-NEXT:    [[V1_INSERT1:%.*]] = insertelement <2 x i32> [[V1_INSERT0]], i32 [[V1_LOAD1]], i32 1
; CHECK-NEXT:    store i32 [[V1_LOAD]], ptr [[V1_INDEX]], align 4
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[ELSE]]:
; CHECK-NEXT:    [[V2_INDEX:%.*]] = getelementptr inbounds [2 x i32], ptr [[V0_ALLOCA]], i32 0, i32 [[I]]
; CHECK-NEXT:    [[V2_LOAD:%.*]] = load i32, ptr [[V2_INDEX]], align 4
; CHECK-NEXT:    store i32 2, ptr [[V2_INDEX]], align 4
; CHECK-NEXT:    [[V2_LOAD0:%.*]] = load i32, ptr [[V0_INDEX0]], align 4
; CHECK-NEXT:    [[V2_INSERT0:%.*]] = insertelement <2 x i32> poison, i32 [[V2_LOAD0]], i32 0
; CHECK-NEXT:    [[V2_LOAD1:%.*]] = load i32, ptr [[V0_INDEX1]], align 4
; CHECK-NEXT:    [[V2_INSERT1:%.*]] = insertelement <2 x i32> [[V2_INSERT0]], i32 [[V2_LOAD1]], i32 1
; CHECK-NEXT:    store i32 [[V2_LOAD]], ptr [[V2_INDEX]], align 4
; CHECK-NEXT:    br label %[[EXIT]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    [[V:%.*]] = phi <2 x i32> [ [[V1_INSERT1]], %[[IF]] ], [ [[V2_INSERT1]], %[[ELSE]] ]
; CHECK-NEXT:    [[V_EXTRACT:%.*]] = extractelement <2 x i32> [[V]], i64 0
; CHECK-NEXT:    [[V_INDEX:%.*]] = getelementptr inbounds [2 x i32], ptr [[V_ALLOCA]], i32 0, i32 0
; CHECK-NEXT:    store i32 [[V_EXTRACT]], ptr [[V_INDEX]], align 4
; CHECK-NEXT:    [[V_EXTRACT10:%.*]] = extractelement <2 x i32> [[V]], i64 1
; CHECK-NEXT:    [[V_INDEX1:%.*]] = getelementptr inbounds [2 x i32], ptr [[V_ALLOCA]], i32 0, i32 1
; CHECK-NEXT:    store i32 [[V_EXTRACT10]], ptr [[V_INDEX1]], align 4
; CHECK-NEXT:    [[V3_INDEXJ:%.*]] = getelementptr inbounds [2 x i32], ptr [[V_ALLOCA]], i32 0, i32 [[J]]
; CHECK-NEXT:    [[V3_LOAD:%.*]] = load i32, ptr [[V3_INDEXJ]], align 4
; CHECK-NEXT:    store i32 3, ptr [[V3_INDEXJ]], align 4
; CHECK-NEXT:    [[V3_LOAD0:%.*]] = load i32, ptr [[V_INDEX]], align 4
; CHECK-NEXT:    [[V3_INSERT0:%.*]] = insertelement <2 x i32> poison, i32 [[V3_LOAD0]], i32 0
; CHECK-NEXT:    [[V3_LOAD1:%.*]] = load i32, ptr [[V_INDEX1]], align 4
; CHECK-NEXT:    [[V3_INSERT1:%.*]] = insertelement <2 x i32> [[V3_INSERT0]], i32 [[V3_LOAD1]], i32 1
; CHECK-NEXT:    store i32 [[V3_LOAD]], ptr [[V3_INDEXJ]], align 4
; CHECK-NEXT:    ret void
;
  %v0_0 = insertelement <2 x i32> poison, i32 0, i32 0
  %v0 = insertelement <2 x i32> %v0_0, i32 0, i32 1
  %cond = icmp eq i32 %c, 1
  br i1 %cond, label %if, label %else
if:
  %v1 = insertelement <2 x i32> %v0, i32 1, i32 %i
  br label %exit
else:
  %v2 = insertelement <2 x i32> %v0, i32 2, i32 %i
  br label %exit
exit:
  %v = phi <2 x i32> [ %v1, %if ], [ %v2, %else ]
  %v3 = insertelement <2 x i32> %v, i32 3, i32 %j
  ret void
}

; Allocas can be reused across insert/extractelement instructions on the same vector
define void @test_alloca_reuse(<3 x i32> %v, i32 %a, i32 %i) {
; CHECK-LABEL: define void @test_alloca_reuse(
; CHECK-SAME: <3 x i32> [[V:%.*]], i32 [[A:%.*]], i32 [[I:%.*]]) {
; CHECK-NEXT:    [[EE1_ALLOCA:%.*]] = alloca [3 x i32], align 4
; CHECK-NEXT:    [[EE1_EXTRACT:%.*]] = extractelement <3 x i32> [[V]], i64 0
; CHECK-NEXT:    [[EE1_INDEX:%.*]] = getelementptr inbounds [3 x i32], ptr [[EE1_ALLOCA]], i32 0, i32 0
; CHECK-NEXT:    store i32 [[EE1_EXTRACT]], ptr [[EE1_INDEX]], align 4
; CHECK-NEXT:    [[EE1_EXTRACT1:%.*]] = extractelement <3 x i32> [[V]], i64 1
; CHECK-NEXT:    [[EE1_INDEX2:%.*]] = getelementptr inbounds [3 x i32], ptr [[EE1_ALLOCA]], i32 0, i32 1
; CHECK-NEXT:    store i32 [[EE1_EXTRACT1]], ptr [[EE1_INDEX2]], align 4
; CHECK-NEXT:    [[EE1_EXTRACT3:%.*]] = extractelement <3 x i32> [[V]], i64 2
; CHECK-NEXT:    [[EE1_INDEX4:%.*]] = getelementptr inbounds [3 x i32], ptr [[EE1_ALLOCA]], i32 0, i32 2
; CHECK-NEXT:    store i32 [[EE1_EXTRACT3]], ptr [[EE1_INDEX4]], align 4
; CHECK-NEXT:    [[EE1_INDEX5:%.*]] = getelementptr inbounds [3 x i32], ptr [[EE1_ALLOCA]], i32 0, i32 [[I]]
; CHECK-NEXT:    [[EE1_LOAD:%.*]] = load i32, ptr [[EE1_INDEX5]], align 4
; CHECK-NEXT:    [[IE1_DYNINDEX:%.*]] = getelementptr inbounds [3 x i32], ptr [[EE1_ALLOCA]], i32 0, i32 [[I]]
; CHECK-NEXT:    [[IE1_LOAD1:%.*]] = load i32, ptr [[IE1_DYNINDEX]], align 4
; CHECK-NEXT:    store i32 [[A]], ptr [[IE1_DYNINDEX]], align 4
; CHECK-NEXT:    [[IE1_LOAD:%.*]] = load i32, ptr [[EE1_INDEX]], align 4
; CHECK-NEXT:    [[IE1_INSERT:%.*]] = insertelement <3 x i32> poison, i32 [[IE1_LOAD]], i32 0
; CHECK-NEXT:    [[IE1_LOAD6:%.*]] = load i32, ptr [[EE1_INDEX2]], align 4
; CHECK-NEXT:    [[IE1_INSERT7:%.*]] = insertelement <3 x i32> [[IE1_INSERT]], i32 [[IE1_LOAD6]], i32 1
; CHECK-NEXT:    [[IE1_LOAD8:%.*]] = load i32, ptr [[EE1_INDEX4]], align 4
; CHECK-NEXT:    [[IE1_INSERT9:%.*]] = insertelement <3 x i32> [[IE1_INSERT7]], i32 [[IE1_LOAD8]], i32 2
; CHECK-NEXT:    store i32 [[IE1_LOAD1]], ptr [[IE1_DYNINDEX]], align 4
; CHECK-NEXT:    ret void
;
  %ee1 = extractelement <3 x i32> %v, i32 %i
  %ie1 = insertelement <3 x i32> %v, i32 %a, i32 %i
  ret void
}

define float @extract_float_vec_dynamic(<4 x float> %v, i32 %i) {
; CHECK-LABEL: define float @extract_float_vec_dynamic(
; CHECK-SAME: <4 x float> [[V:%.*]], i32 [[I:%.*]]) {
; CHECK-NEXT:    [[EE_ALLOCA:%.*]] = alloca [4 x float], align 4
; CHECK-NEXT:    [[EE_EXTRACT:%.*]] = extractelement <4 x float> [[V]], i64 0
; CHECK-NEXT:    [[EE_INDEX:%.*]] = getelementptr inbounds [4 x float], ptr [[EE_ALLOCA]], i32 0, i32 0
; CHECK-NEXT:    store float [[EE_EXTRACT]], ptr [[EE_INDEX]], align 4
; CHECK-NEXT:    [[EE_EXTRACT1:%.*]] = extractelement <4 x float> [[V]], i64 1
; CHECK-NEXT:    [[EE_INDEX2:%.*]] = getelementptr inbounds [4 x float], ptr [[EE_ALLOCA]], i32 0, i32 1
; CHECK-NEXT:    store float [[EE_EXTRACT1]], ptr [[EE_INDEX2]], align 4
; CHECK-NEXT:    [[EE_EXTRACT3:%.*]] = extractelement <4 x float> [[V]], i64 2
; CHECK-NEXT:    [[EE_INDEX4:%.*]] = getelementptr inbounds [4 x float], ptr [[EE_ALLOCA]], i32 0, i32 2
; CHECK-NEXT:    store float [[EE_EXTRACT3]], ptr [[EE_INDEX4]], align 4
; CHECK-NEXT:    [[EE_EXTRACT5:%.*]] = extractelement <4 x float> [[V]], i64 3
; CHECK-NEXT:    [[EE_INDEX6:%.*]] = getelementptr inbounds [4 x float], ptr [[EE_ALLOCA]], i32 0, i32 3
; CHECK-NEXT:    store float [[EE_EXTRACT5]], ptr [[EE_INDEX6]], align 4
; CHECK-NEXT:    [[EE_INDEX7:%.*]] = getelementptr inbounds [4 x float], ptr [[EE_ALLOCA]], i32 0, i32 [[I]]
; CHECK-NEXT:    [[EE_LOAD:%.*]] = load float, ptr [[EE_INDEX7]], align 4
; CHECK-NEXT:    ret float [[EE_LOAD]]
;
  %ee = extractelement <4 x float> %v, i32 %i
  ret float %ee
}

define <3 x i32> @insert_i32_vec_dynamic(<3 x i32> %v, i32 %a, i32 %i) {
; CHECK-LABEL: define <3 x i32> @insert_i32_vec_dynamic(
; CHECK-SAME: <3 x i32> [[V:%.*]], i32 [[A:%.*]], i32 [[I:%.*]]) {
; CHECK-NEXT:    [[IE_ALLOCA:%.*]] = alloca [3 x i32], align 4
; CHECK-NEXT:    [[IE_EXTRACT:%.*]] = extractelement <3 x i32> [[V]], i64 0
; CHECK-NEXT:    [[IE_INDEX:%.*]] = getelementptr inbounds [3 x i32], ptr [[IE_ALLOCA]], i32 0, i32 0
; CHECK-NEXT:    store i32 [[IE_EXTRACT]], ptr [[IE_INDEX]], align 4
; CHECK-NEXT:    [[IE_EXTRACT1:%.*]] = extractelement <3 x i32> [[V]], i64 1
; CHECK-NEXT:    [[IE_INDEX2:%.*]] = getelementptr inbounds [3 x i32], ptr [[IE_ALLOCA]], i32 0, i32 1
; CHECK-NEXT:    store i32 [[IE_EXTRACT1]], ptr [[IE_INDEX2]], align 4
; CHECK-NEXT:    [[IE_EXTRACT3:%.*]] = extractelement <3 x i32> [[V]], i64 2
; CHECK-NEXT:    [[IE_INDEX4:%.*]] = getelementptr inbounds [3 x i32], ptr [[IE_ALLOCA]], i32 0, i32 2
; CHECK-NEXT:    store i32 [[IE_EXTRACT3]], ptr [[IE_INDEX4]], align 4
; CHECK-NEXT:    [[IE_DYNINDEX:%.*]] = getelementptr inbounds [3 x i32], ptr [[IE_ALLOCA]], i32 0, i32 [[I]]
; CHECK-NEXT:    [[IE_LOAD1:%.*]] = load i32, ptr [[IE_DYNINDEX]], align 4
; CHECK-NEXT:    store i32 [[A]], ptr [[IE_DYNINDEX]], align 4
; CHECK-NEXT:    [[IE_LOAD:%.*]] = load i32, ptr [[IE_INDEX]], align 4
; CHECK-NEXT:    [[IE_INSERT:%.*]] = insertelement <3 x i32> poison, i32 [[IE_LOAD]], i32 0
; CHECK-NEXT:    [[IE_LOAD5:%.*]] = load i32, ptr [[IE_INDEX2]], align 4
; CHECK-NEXT:    [[IE_INSERT6:%.*]] = insertelement <3 x i32> [[IE_INSERT]], i32 [[IE_LOAD5]], i32 1
; CHECK-NEXT:    [[IE_LOAD7:%.*]] = load i32, ptr [[IE_INDEX4]], align 4
; CHECK-NEXT:    [[IE_INSERT8:%.*]] = insertelement <3 x i32> [[IE_INSERT6]], i32 [[IE_LOAD7]], i32 2
; CHECK-NEXT:    store i32 [[IE_LOAD1]], ptr [[IE_DYNINDEX]], align 4
; CHECK-NEXT:    ret <3 x i32> [[IE_INSERT8]]
;
  %ie = insertelement <3 x i32> %v, i32 %a, i32 %i
  ret <3 x i32> %ie
}

; An extractelement with a constant index should not be converted to array form
define i16 @extract_i16_vec_constant(<4 x i16> %v) {
; CHECK-LABEL: define i16 @extract_i16_vec_constant(
; CHECK-SAME: <4 x i16> [[V:%.*]]) {
; CHECK-NEXT:    [[EE:%.*]] = extractelement <4 x i16> [[V]], i32 1
; CHECK-NEXT:    ret i16 [[EE]]
;
  %ee = extractelement <4 x i16> %v, i32 1
  ret i16 %ee
}

; An insertelement with a constant index should not be converted to array form
define <2 x half> @insert_half_vec_constant(<2 x half> %v, half %a) {
; CHECK-LABEL: define <2 x half> @insert_half_vec_constant(
; CHECK-SAME: <2 x half> [[V:%.*]], half [[A:%.*]]) {
; CHECK-NEXT:    [[IE:%.*]] = insertelement <2 x half> [[V]], half [[A]], i32 1
; CHECK-NEXT:    ret <2 x half> [[IE]]
;
  %ie = insertelement <2 x half> %v, half %a, i32 1
  ret <2 x half> %ie
}