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0c1aee0b16
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. llvm-svn: 246327
26 lines
1.1 KiB
LLVM
26 lines
1.1 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; CHECK: !named = !{!0, !1, !2, !3, !4, !4, !5, !6, !7, !7}
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!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9}
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!0 = distinct !{}
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!1 = distinct !DISubprogram(name: "foo", scope: !2)
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!2 = !DIFile(filename: "path/to/file", directory: "/path/to/dir")
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; CHECK: !3 = !DILexicalBlock(scope: !1, file: !2, line: 7, column: 35)
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!3 = !DILexicalBlock(scope: !1, file: !2, line: 7, column: 35)
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; CHECK: !4 = !DILexicalBlock(scope: !1)
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!4 = !DILexicalBlock(scope: !1)
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!5 = !DILexicalBlock(scope: !1, file: null, line: 0, column: 0)
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; CHECK: !5 = !DILexicalBlockFile(scope: !3, file: !2, discriminator: 0)
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; CHECK: !6 = !DILexicalBlockFile(scope: !3, file: !2, discriminator: 1)
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!6 = !DILexicalBlockFile(scope: !3, file: !2, discriminator: 0)
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!7 = !DILexicalBlockFile(scope: !3, file: !2, discriminator: 1)
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; CHECK: !7 = !DILexicalBlockFile(scope: !3, discriminator: 7)
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!8 = !DILexicalBlockFile(scope: !3, discriminator: 7)
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!9 = !DILexicalBlockFile(scope: !3, file: null, discriminator: 7)
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