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47 lines
1.7 KiB
LLVM
47 lines
1.7 KiB
LLVM
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; RUN: opt -S -codegenprepare < %s | FileCheck %s
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;
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; This test case has been generated by hand but is inspired by the
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; observation that compares that are sunk into the basic blocks where
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; their results are used did not retain their debug locs. This caused
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; sample profiling to attribute code to the wrong source lines.
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;
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; We check that the compare instruction retains its debug loc after
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; it is sunk into other.bb by the codegen prepare pass.
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;
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; CHECK: other.bb:
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; CHECK-NEXT: icmp{{.*}}%x, 0, !dbg ![[MDHANDLE:[0-9]*]]
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; CHECK: ![[MDHANDLE]] = !DILocation(line: 2
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define i32 @_Z3fooii(i32 %x, i32 %y) !dbg !5 {
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entry:
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%cmp17 = icmp sgt i32 %x, 0, !dbg !6
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br label %other.bb, !dbg !6
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other.bb:
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br i1 %cmp17, label %exit1.bb, label %exit2.bb, !dbg !7
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exit1.bb:
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%0 = add i32 %y, 42, !dbg !8
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ret i32 %0, !dbg !8
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exit2.bb:
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ret i32 44, !dbg !9
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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_C, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2)
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!1 = !DIFile(filename: "test.cpp", directory: "/debuginfo/bug/cgp")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: !1, file: !1, line: 1, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!6 = !DILocation(line: 2, column: 0, scope: !5)
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!7 = !DILocation(line: 3, column: 0, scope: !5)
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!8 = !DILocation(line: 4, column: 0, scope: !5)
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!9 = !DILocation(line: 5, column: 0, scope: !5)
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