52 lines
2.4 KiB
LLVM
52 lines
2.4 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-linux-gnu -start-after=codegenprepare -stop-before=finalize-isel -o - %s -experimental-debug-variable-locations=true | FileCheck %s --implicit-check-not=DBG_PHI
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; Test that for multiple dbg.values referring to the same argument, we emit a
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; single DBG_PHI and refer to it twice. (Using more than one DBG_PHI is fine,
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; but inefficient).
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; CHECK-DAG: ![[LOCAL:.*]] = !DILocalVariable(name: "local"
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; CHECK-DAG: ![[LOCAL2:.*]] = !DILocalVariable(name: "local2"
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; CHECK: DBG_PHI $edi, 1
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; CHECK: DBG_INSTR_REF 1, 0, ![[LOCAL]], !DIExpression(),
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; CHECK: DBG_INSTR_REF 1, 0, ![[LOCAL2]], !DIExpression(),
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declare void @bar(i32)
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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define dso_local void @foo_local(i32 %t1a) local_unnamed_addr !dbg !7 {
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entry:
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tail call void @bar(i32 %t1a) #3, !dbg !17
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%bees = add i32 %t1a, 3
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call void @llvm.dbg.value(metadata i32 %t1a, metadata !13, metadata !DIExpression()), !dbg !14
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call void @llvm.dbg.value(metadata i32 %t1a, metadata !19, metadata !DIExpression()), !dbg !14
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tail call void @bar(i32 %bees) #3, !dbg !17
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ret void, !dbg !18
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "foo.c", directory: "")
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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 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang"}
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!7 = distinct !DISubprogram(name: "foo_local", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13}
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!12 = !DILocalVariable(name: "t1a", arg: 1, scope: !7, file: !1, line: 3, type: !10)
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!13 = !DILocalVariable(name: "local", scope: !7, file: !1, line: 4, type: !10)
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!14 = !DILocation(line: 3, column: 20, scope: !7)
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!15 = !DILocation(line: 4, column: 7, scope: !7)
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!16 = !DILocation(line: 5, column: 3, scope: !7)
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!17 = !DILocation(line: 7, column: 3, scope: !7)
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!18 = !DILocation(line: 8, column: 1, scope: !7)
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!19 = !DILocalVariable(name: "local2", scope: !7, file: !1, line: 4, type: !10)
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