forked from OSchip/llvm-project
39 lines
1.7 KiB
LLVM
39 lines
1.7 KiB
LLVM
; RUN: llc %s -stop-before=finalize-isel -march=aarch64 -o - \
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; RUN: -experimental-debug-variable-locations | FileCheck %s
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; Test that when an SSA Value becomes a constant-physreg copy, under the
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; instruction referencing model, the COPY is labelled. In the general case
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; labelling a copy is undesirable -- this test really checks that we don't
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; crash, and we don't just drop the information.
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; CHECK: DBG_PHI $xzr, 1
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; CHECK: DBG_INSTR_REF 1, 0
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define i64 @test() !dbg !7 {
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%foo = add i64 0, 0
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call void @llvm.dbg.value(metadata i64 %foo, metadata !12, metadata !DIExpression()), !dbg !13
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ret i64 %foo, !dbg !13
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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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, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/tmp/out.c")
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!2 = !{}
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!3 = !{i32 7, !"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 = !{!""}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !11, !11}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
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!12 = !DILocalVariable(name: "bar", arg: 1, scope: !7, file: !1, line: 3, type: !11)
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!13 = !DILocation(line: 0, scope: !7)
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!14 = !DILocalVariable(name: "baz", arg: 2, scope: !7, file: !1, line: 3, type: !11)
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