xref: /llvm-project/llvm/test/CodeGen/SPIRV/structurizer/do-nested.ll (revision 53326ee0cf45fce3f80e2e98638dd27edb20c516) 
1; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s --match-full-lines
2; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %}
3
4target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
5target triple = "spirv-unknown-vulkan1.3-compute"
6
7define internal spir_func void @main() #0 {
8; CHECK:    %[[#entry:]] = OpLabel
9entry:
10  %0 = call token @llvm.experimental.convergence.entry()
11  %var = alloca i32, align 4
12  br label %do1_header
13
14; CHECK:    %[[#do1_header:]] = OpLabel
15; CHECK:                        OpLoopMerge %[[#do1_merge:]] %[[#do1_continue:]] None
16; CHECK:                        OpBranch %[[#do2_header:]]
17do1_header:
18  %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ]
19  store i32 0, ptr %var
20  br label %do2_header
21
22; CHECK:    %[[#do2_header:]] = OpLabel
23; CHECK:                        OpLoopMerge %[[#do2_merge:]] %[[#do2_continue:]] None
24; CHECK:                        OpBranch %[[#do3_header:]]
25do2_header:
26  %4 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %1) ]
27  store i32 0, ptr %var
28  br label %do3_header
29
30; CHECK:    %[[#do3_header:]] = OpLabel
31; CHECK:                        OpLoopMerge %[[#do3_merge:]] %[[#do3_continue:]] None
32; CHECK:                        OpBranch %[[#do3_cond:]]
33do3_header:
34  %5 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %4) ]
35  store i32 0, ptr %var
36  br label %do3_continue
37
38; CHECK:        %[[#do3_cond]] = OpLabel
39; CHECK:                         OpBranchConditional %[[#]] %[[#do3_continue]] %[[#do3_merge]]
40
41; CHECK:    %[[#do3_merge]] = OpLabel
42; CHECK:                      OpBranch %[[#do2_cond:]]
43do3_merge:
44  store i32 0, ptr %var
45  br label %do2_continue
46
47; CHECK:        %[[#do2_cond]] = OpLabel
48; CHECK:                         OpBranchConditional %[[#]] %[[#do2_continue]] %[[#do2_merge]]
49
50; CHECK:    %[[#do2_merge]] = OpLabel
51; CHECK:                      OpBranch %[[#do1_cond:]]
52
53; CHECK:        %[[#do1_cond]] = OpLabel
54; CHECK:                         OpBranchConditional %[[#]] %[[#do1_continue]] %[[#do1_merge]]
55do2_merge:
56  store i32 0, ptr %var
57  br label %do1_continue
58
59; CHECK:    %[[#do1_merge]] = OpLabel
60; CHECK:                      OpReturn
61do1_merge:
62  ret void
63
64; CHECK:    %[[#do1_continue]] = OpLabel
65; CHECK:                         OpBranch %[[#do1_header]]
66do1_continue:
67  store i32 0, ptr %var
68  br i1 true, label %do1_header, label %do1_merge
69
70; CHECK:    %[[#do2_continue]] = OpLabel
71; CHECK:                         OpBranch %[[#do2_header]]
72do2_continue:
73  store i32 0, ptr %var
74  br i1 true, label %do2_header, label %do2_merge
75
76; CHECK:    %[[#do3_continue]] = OpLabel
77; CHECK:                         OpBranch %[[#do3_header]]
78do3_continue:
79  store i32 0, ptr %var
80  br i1 true, label %do3_header, label %do3_merge
81}
82
83declare token @llvm.experimental.convergence.entry() #1
84declare token @llvm.experimental.convergence.loop() #1
85
86attributes #0 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
87attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) }
88
89!llvm.module.flags = !{!0, !1, !2}
90
91!0 = !{i32 1, !"wchar_size", i32 4}
92!1 = !{i32 4, !"dx.disable_optimizations", i32 1}
93!2 = !{i32 7, !"frame-pointer", i32 2}
94