1; RUN: opt -O2 -pass-remarks-missed=openmp-opt -enable-new-pm < %s 2>&1 | FileCheck %s --check-prefix=MODULE
2target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
3
4@.str = private unnamed_addr constant [13 x i8] c"Alloc Shared\00", align 1
5
6@S = external local_unnamed_addr global i8*
7
8; MODULE: remark: openmp_opt_module.c:5:7: Found thread data sharing on the GPU. Expect degraded performance due to data globalization.
9
10define void @foo() {
11entry:
12  %x = call i8* @__kmpc_alloc_shared(i64 4), !dbg !10
13  %x_on_stack = bitcast i8* %x to i32*
14  %0 = bitcast i32* %x_on_stack to i8*
15  call void @use(i8* %0)
16  call void @__kmpc_free_shared(i8* %x)
17  ret void
18}
19
20define void @use(i8* %0) {
21entry:
22  %.addr = alloca i8*, align 8
23  store i8* %0, i8** @S
24  ret void
25}
26
27define weak i8* @__kmpc_alloc_shared(i64 %DataSize) {
28entry:
29  %call = call i8* @_Z10SafeMallocmPKc(i64 %DataSize, i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0)) #11
30  ret i8* %call
31}
32
33; Function Attrs: convergent nounwind mustprogress
34declare i8* @_Z10SafeMallocmPKc(i64 %size, i8* nocapture readnone %msg)
35
36declare void @__kmpc_free_shared(i8*)
37
38!llvm.dbg.cu = !{!0}
39!llvm.module.flags = !{!3, !4, !5, !6}
40!nvvm.annotations = !{!7}
41
42!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
43!1 = !DIFile(filename: "openmp_opt_module.c", directory: "/tmp/openmp_opt_module.c")
44!2 = !{}
45!3 = !{i32 2, !"Debug Info Version", i32 3}
46!4 = !{i32 1, !"wchar_size", i32 4}
47!5 = !{i32 7, !"openmp", i32 50}
48!6 = !{i32 7, !"openmp-device", i32 50}
49!7 = !{void ()* @foo, !"kernel", i32 1}
50!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
51!9 = !DISubroutineType(types: !2)
52!10 = !DILocation(line: 5, column: 7, scope: !8)
53