1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
2; RUN: opt -S -passes='openmp-opt' < %s | FileCheck %s
3; ModuleID = 'single_threaded_exeuction.c'
4
5%struct.ident_t = type { i32, i32, i32, i32, i8* }
6
7@0 = private unnamed_addr constant [1 x i8] c"\00", align 1
8@1 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @0, i32 0, i32 0) }, align 8
9
10define void @kernel() {
11; CHECK-LABEL: define {{[^@]+}}@kernel() {
12; CHECK-NEXT:    [[CALL:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* nonnull @[[GLOB1:[0-9]+]], i1 false, i1 false, i1 false)
13; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], -1
14; CHECK-NEXT:    br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
15; CHECK:       if.then:
16; CHECK-NEXT:    call void @foo()
17; CHECK-NEXT:    br label [[IF_END:%.*]]
18; CHECK:       if.else:
19; CHECK-NEXT:    call void @bar()
20; CHECK-NEXT:    br label [[IF_END]]
21; CHECK:       if.end:
22; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 true)
23; CHECK-NEXT:    ret void
24;
25  %call = call i32 @__kmpc_target_init(%struct.ident_t* nonnull @1, i1 false, i1 false, i1 false)
26  %cmp = icmp eq i32 %call, -1
27  br i1 %cmp, label %if.then, label %if.else
28if.then:
29  call void @foo()
30  br label %if.end
31if.else:
32  call void @bar()
33  br label %if.end
34if.end:
35  call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 true)
36  ret void
37}
38
39; Function Attrs: noinline
40define internal void @foo() {
41; CHECK-LABEL: define {{[^@]+}}@foo() {
42; CHECK-NEXT:  entry:
43; CHECK-NEXT:    [[TID:%.*]] = call i32 @__kmpc_get_hardware_thread_id()
44; CHECK-NEXT:    br label [[IF_THEN:%.*]]
45; CHECK:       if.then:
46; CHECK-NEXT:    call void @baz()
47; CHECK-NEXT:    br label [[IF_END:%.*]]
48; CHECK:       if.end:
49; CHECK-NEXT:    ret void
50;
51entry:
52  %tid = call i32 @__kmpc_get_hardware_thread_id();
53  %ismain = call signext i8 @__kmpc_is_generic_main_thread_id(i32 %tid)
54  %pred = icmp eq i8 %ismain, 1
55  br i1 %pred, label %if.then, label %if.end
56
57if.then:
58  call void @baz()
59  br label %if.end
60
61if.end:
62  ret void
63}
64
65; Function Attrs: noinline
66define internal void @bar() {
67; CHECK-LABEL: define {{[^@]+}}@bar() {
68; CHECK-NEXT:  entry:
69; CHECK-NEXT:    [[TID:%.*]] = call i32 @__kmpc_get_hardware_thread_id()
70; CHECK-NEXT:    [[ISMAIN:%.*]] = call signext i8 @__kmpc_is_generic_main_thread_id(i32 [[TID]])
71; CHECK-NEXT:    [[PRED:%.*]] = icmp eq i8 [[ISMAIN]], 1
72; CHECK-NEXT:    br i1 [[PRED]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
73; CHECK:       if.then:
74; CHECK-NEXT:    call void @baz()
75; CHECK-NEXT:    br label [[IF_END]]
76; CHECK:       if.end:
77; CHECK-NEXT:    ret void
78;
79entry:
80  %tid = call i32 @__kmpc_get_hardware_thread_id();
81  %ismain = call signext i8 @__kmpc_is_generic_main_thread_id(i32 %tid)
82  %pred = icmp eq i8 %ismain, 1
83  br i1 %pred, label %if.then, label %if.end
84
85if.then:
86  call void @baz()
87  br label %if.end
88
89if.end:
90  ret void
91}
92
93declare void @baz()
94
95declare i8 @__kmpc_is_generic_main_thread_id(i32)
96
97declare i32 @__kmpc_get_hardware_thread_id()
98
99declare i32 @__kmpc_target_init(%struct.ident_t*, i1, i1, i1)
100
101declare void @__kmpc_target_deinit(%struct.ident_t*, i1, i1)
102
103!llvm.dbg.cu = !{!0}
104!llvm.module.flags = !{!3, !4, !5, !6}
105!nvvm.annotations = !{!7}
106
107!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
108!1 = !DIFile(filename: "fold_generic_main_thread.c", directory: "/tmp/fold_generic_main_thread.c")
109!2 = !{}
110!3 = !{i32 2, !"Debug Info Version", i32 3}
111!4 = !{i32 1, !"wchar_size", i32 4}
112!5 = !{i32 7, !"openmp", i32 50}
113!6 = !{i32 7, !"openmp-device", i32 50}
114!7 = !{void ()* @kernel, !"kernel", i32 1}
115