38 lines
1.4 KiB
LLVM
38 lines
1.4 KiB
LLVM
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; RUN: opt -loop-deletion %s -o /dev/null --pass-remarks-output=%t --pass-remarks-filter=loop-delete
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; RUN: cat %t | FileCheck %s
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; Check that we use the right debug location: the loop header.
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; CHECK: --- !Passed
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; CHECK-NEXT: Pass: loop-delete
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; CHECK-NEXT: Name: Invariant
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; CHECK-NEXT: DebugLoc: { File: loop.c, Line: 2, Column: 3 }
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; CHECK-NEXT: Function: main
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; CHECK-NEXT: Args:
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; CHECK-NEXT: - String: Loop deleted because it is invariant
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; CHECK-NEXT: ...
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define i32 @main() local_unnamed_addr #0 {
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entry:
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br label %for.cond, !dbg !9
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for.cond:
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.cond ]
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%cmp = icmp ult i32 %i.0, 1000
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%inc = add nuw nsw i32 %i.0, 1
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br i1 %cmp, label %for.cond, label %for.cond.cleanup
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for.cond.cleanup:
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ret i32 0
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2, nameTableKind: None, sysroot: "/")
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!1 = !DIFile(filename: "loop.c", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = distinct !DISubprogram(name: "main", scope: !7, file: !7, line: 1, type: !8, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!7 = !DIFile(filename: "loop.c", directory: "")
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!8 = !DISubroutineType(types: !2)
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!9 = !DILocation(line: 2, column: 3, scope: !6)
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