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
|
; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %}
;
; int process() {
; int b = 0;
; const int t = 50;
;
; switch(int d = 5) {
; case t:
; b = t;
; case 4:
; case 5:
; b = 5;
; break;
; default:
; break;
; }
;
; return b;
; }
;
; [numthreads(1, 1, 1)]
; void main() {
; process();
; }
; CHECK: %[[#func_13:]] = OpFunction %[[#uint:]] DontInline %[[#]]
; CHECK: %[[#bb25:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb26:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb27:]] %[[#bb28:]]
; CHECK: %[[#bb27:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb29:]] None
; CHECK: OpSwitch %[[#]] %[[#bb30:]] 50 %[[#bb31:]] 4 %[[#bb29:]] 5 %[[#bb32:]]
; CHECK: %[[#bb28:]] = OpLabel
; CHECK: %[[#bb30:]] = OpLabel
; CHECK: OpBranch %[[#bb29:]]
; CHECK: %[[#bb31:]] = OpLabel
; CHECK: OpBranch %[[#bb29:]]
; CHECK: %[[#bb32:]] = OpLabel
; CHECK: OpBranch %[[#bb29:]]
; CHECK: %[[#bb29:]] = OpLabel
; CHECK: OpBranchConditional %[[#]] %[[#bb33:]] %[[#bb26:]]
; CHECK: %[[#bb33:]] = OpLabel
; CHECK: OpBranch %[[#bb26:]]
; CHECK: %[[#bb26:]] = OpLabel
; CHECK: OpReturnValue %[[#]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_21:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb34:]] = OpLabel
; CHECK: OpReturn
; CHECK: OpFunctionEnd
; CHECK: %[[#func_23:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb35:]] = OpLabel
; CHECK: OpReturn
; CHECK: OpFunctionEnd
target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
target triple = "spirv-unknown-vulkan1.3-compute"
; Function Attrs: convergent noinline norecurse nounwind optnone
define spir_func noundef i32 @_Z7processv() #0 {
entry:
%0 = call token @llvm.experimental.convergence.entry()
%b = alloca i32, align 4
%t = alloca i32, align 4
%d = alloca i32, align 4
store i32 0, ptr %b, align 4
store i32 50, ptr %t, align 4
store i32 5, ptr %d, align 4
%1 = load i32, ptr %d, align 4
switch i32 %1, label %sw.default [
i32 50, label %sw.bb
i32 4, label %sw.bb1
i32 5, label %sw.bb1
]
sw.bb: ; preds = %entry
store i32 50, ptr %b, align 4
br label %sw.bb1
sw.bb1: ; preds = %entry, %entry, %sw.bb
store i32 5, ptr %b, align 4
br label %sw.epilog
sw.default: ; preds = %entry
br label %sw.epilog
sw.epilog: ; preds = %sw.default, %sw.bb1
%2 = load i32, ptr %b, align 4
ret i32 %2
}
; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)
declare token @llvm.experimental.convergence.entry() #1
; Function Attrs: convergent noinline norecurse nounwind optnone
define internal spir_func void @main() #0 {
entry:
%0 = call token @llvm.experimental.convergence.entry()
%call1 = call spir_func noundef i32 @_Z7processv() #3 [ "convergencectrl"(token %0) ]
ret void
}
; Function Attrs: convergent norecurse
define void @main.1() #2 {
entry:
call void @main()
ret void
}
attributes #0 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) }
attributes #2 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #3 = { convergent }
!llvm.module.flags = !{!0, !1, !2}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 4, !"dx.disable_optimizations", i32 1}
!2 = !{i32 7, !"frame-pointer", i32 2}
|
