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Adrian Prantl
9fa4de797e
The LLVM backend cannot produce any debug info for an llvm::Function without a DISubprogram attachment. When inlining a debug-info-carrying function into a nodebug function, there is therefore no reason to keep any debug info intrinsic calls or debug locations on the instructions. This fixes a problem discovered in PR32042. rdar://problem/30679307 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296488 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; RUN: opt -inline -S -o - < %s | FileCheck %s
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; Check that debug info is stripped when inlining into a nodebug function.
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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define void @foo() !dbg !2 {
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entry:
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%a = alloca i32
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call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !3, metadata !DIExpression()), !dbg !6
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store i32 0, i32* %a, !dbg !6
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ret void, !dbg !6
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}
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; CHECK: define void @bar()
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define void @bar() {
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; CHECK-NEXT: entry
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entry:
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; CHECK-NEXT: alloca i32
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; CHECK-NOT: dbg
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; CHECK: ret void
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call void @foo()
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ret void
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", emissionKind: FullDebug)
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!1 = !DIFile(filename: "x.c", directory: "/")
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!2 = distinct !DISubprogram(name: "foo", scope: !0, isDefinition: true, unit: !0)
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!3 = !DILocalVariable(name: "a", arg: 1, scope: !2, file: !1, line: 1, type: !5)
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!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!6 = !DILocation(line: 1, scope: !2)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 1, !"Debug Info Version", i32 3}
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