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a5ae7c1c9f
As a follow-up to r246098, require `DISubprogram` definitions
(`isDefinition: true`) to be 'distinct'. Specifically, add an assembler
check, a verifier check, and bitcode upgrading logic to combat testcase
bitrot after the `DIBuilder` change.
While working on the testcases, I realized that
test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its
purpose was to check for a corner case in PR22792 where two subprogram
definitions match exactly and share the same metadata node. The new
verifier check, requiring that subprogram definitions are 'distinct',
precludes that possibility.
I updated almost all the IR with the following script:
git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' |
grep -v test/Bitcode |
xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/'
Likely some variant of would work for out-of-tree testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246327 91177308-0d34-0410-b5e6-96231b3b80d8
33 lines
1.9 KiB
LLVM
33 lines
1.9 KiB
LLVM
; RUN: llc < %s
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; PR6847
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:64-n32"
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target triple = "armv4t-apple-darwin10"
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define hidden i32 @__addvsi3(i32 %a, i32 %b) nounwind {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1)
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%0 = add nsw i32 %b, %a, !dbg !9 ; <i32> [#uses=1]
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ret i32 %0, !dbg !11
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!3}
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!llvm.module.flags = !{!15}
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!0 = !DILocalVariable(name: "b", line: 93, arg: 2, scope: !1, file: !2, type: !6)
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!1 = distinct !DISubprogram(name: "__addvsi3", linkageName: "__addvsi3", line: 94, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: null, type: !4)
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!2 = !DIFile(filename: "libgcc2.c", directory: "/Users/bwilson/local/nightly/test-2010-04-14/build/llvmgcc.roots/llvmgcc~obj/src/gcc")
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!12 = !DIFile(filename: "libgcc2.c", directory: "/Users/bwilson/local/nightly/test-2010-04-14/build/llvmgcc.roots/llvmgcc~obj/src/gcc")
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!3 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 00)", isOptimized: true, emissionKind: 0, file: !12, enums: !13, retainedTypes: !13, subprograms: !14)
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!4 = !DISubroutineType(types: !5)
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!5 = !{!6, !6, !6}
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!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "SItype", line: 152, file: !12, baseType: !8)
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!7 = !DIFile(filename: "libgcc2.h", directory: "/Users/bwilson/local/nightly/test-2010-04-14/build/llvmgcc.roots/llvmgcc~obj/src/gcc")
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !DILocation(line: 95, scope: !10)
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!10 = distinct !DILexicalBlock(line: 94, column: 0, file: !12, scope: !1)
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!11 = !DILocation(line: 100, scope: !10)
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!13 = !{}
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!14 = !{!1}
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!15 = !{i32 1, !"Debug Info Version", i32 3}
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