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49 lines
1.8 KiB
49 lines
1.8 KiB
4 months ago
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; RUN: opt -S -reassociate < %s | FileCheck %s
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; PR34231
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;
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; Verify that the original debug location is kept if the
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; replacement debug location is missing when
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; reassociating expressions.
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define i16 @fn1() !dbg !3 {
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ret i16 undef
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}
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define void @fn2() !dbg !6 {
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; CHECK-LABEL: @fn2
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; CHECK: call i16 @fn1(), !dbg ![[LOC1:[0-9]+]]
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; CHECK-NOT: or i16
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%inlinable_call = call i16 @fn1(), !dbg !7
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%dbgless_instruction = or i16 %inlinable_call, 0
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store i16 %dbgless_instruction, i16* undef, align 1
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unreachable
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}
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define void @fn3() !dbg !8 {
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; CHECK-LABEL: @fn3
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; CHECK: load i16, i16* undef, align 2, !dbg ![[LOC2:[0-9]+]]
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; CHECK-NOT: or i16
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%instruction = load i16, i16* undef, !dbg !9
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%dbgless_instruction = or i16 %instruction, 0
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store i16 %dbgless_instruction, i16* undef, align 1
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unreachable
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}
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; CHECK: ![[LOC1]] = !DILocation(line: 7
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; CHECK: ![[LOC2]] = !DILocation(line: 9
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly)
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!1 = !DIFile(filename: "foo.c", directory: "/")
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!2 = !{i32 2, !"Debug Info Version", i32 3}
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!3 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 2, type: !4, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0)
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!4 = !DISubroutineType(types: !5)
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!5 = !{}
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!6 = distinct !DISubprogram(name: "fn2", scope: !1, file: !1, line: 3, type: !4, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0)
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!7 = !DILocation(line: 7, column: 10, scope: !6)
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!8 = distinct !DISubprogram(name: "fn3", scope: !1, file: !1, line: 8, type: !4, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0)
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!9 = !DILocation(line: 9, column: 10, scope: !8)
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