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Matthias Braun
83c015bd73
The debug-use flag must be set exactly for uses on DBG_VALUEs. This is so obvious that it can be trivially inferred while parsing. This will reduce noise when printing while omitting an information that has little value to the user. The parser will keep recognizing the flag for compatibility with old `.mir` files. Differential Revision: https://reviews.llvm.org/D53903 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345671 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
1.5 KiB
LLVM
29 lines
1.5 KiB
LLVM
; RUN: llc -filetype=asm %s -o - -stop-after=livedebugvalues | FileCheck %s
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; This tests that transferring debug info describing the lower bits of
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; an extended SDNode works.
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target triple = "thumbv6m-apple-unknown-macho"
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define arm_aapcscc i64 @f(double %a) !dbg !5 {
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entry:
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%0 = bitcast double %a to i64
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%extract.t84 = trunc i64 %0 to i32
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tail call void @llvm.dbg.value(metadata i32 %extract.t84, metadata !8, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)), !dbg !12
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; CHECK: DBG_VALUE $r0, $noreg, !6, !DIExpression(DW_OP_LLVM_fragment, 0, 32)
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%r.sroa.0.0.insert.ext35 = zext i32 %extract.t84 to i64
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ret i64 %r.sroa.0.0.insert.ext35
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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}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2)
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!1 = !DIFile(filename: "f.c", directory: "/")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 29, type: !7, isLocal: false, isDefinition: true, scopeLine: 30, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
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!7 = !DISubroutineType(types: !2)
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!8 = !DILocalVariable(name: "r", scope: !5, file: !1, line: 37, type: !11)
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!11 = distinct !DICompositeType(tag: DW_TAG_union_type, file: !1, line: 33, size: 64, elements: !2)
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!12 = !DILocation(line: 37, column: 12, scope: !5)
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