27 lines
1.1 KiB
LLVM
27 lines
1.1 KiB
LLVM
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;; -fsanitize=thread requires the (potentially concurrent) counter updates to be atomic.
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; RUN: mkdir -p %t && cd %t
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; RUN: opt < %s -S -passes=insert-gcov-profiling -gcov-atomic-counter | FileCheck %s
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; CHECK-LABEL: void @empty()
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %0 = atomicrmw add i64* getelementptr inbounds ([1 x i64], [1 x i64]* @__llvm_gcov_ctr, i64 0, i64 0), i64 1 monotonic, !dbg [[DBG:![0-9]+]]
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; CHECK-NEXT: ret void, !dbg [[DBG]]
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define dso_local void @empty() !dbg !5 {
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entry:
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ret void, !dbg !8
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "a.c", directory: "")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 5}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = distinct !DISubprogram(name: "empty", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!6 = !DISubroutineType(types: !7)
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!7 = !{null}
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!8 = !DILocation(line: 2, column: 1, scope: !5)
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