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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
24 lines
869 B
LLVM
24 lines
869 B
LLVM
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; CHECK: !named = !{!0, !1, !1, !2, !2, !3, !3, !4}
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!named = !{!0, !1, !2, !3, !4, !5, !6, !7}
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; CHECK: !0 = distinct !DISubprogram(
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!0 = distinct !DISubprogram()
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; CHECK-NEXT: !1 = !DILocation(line: 3, column: 7, scope: !0)
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!1 = !DILocation(line: 3, column: 7, scope: !0)
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!2 = !DILocation(scope: !0, column: 7, line: 3)
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; CHECK-NEXT: !2 = !DILocation(line: 3, column: 7, scope: !0, inlinedAt: !1)
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!3 = !DILocation(scope: !0, inlinedAt: !1, column: 7, line: 3)
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!4 = !DILocation(column: 7, line: 3, scope: !0, inlinedAt: !1)
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; CHECK-NEXT: !3 = !DILocation(line: 0, scope: !0)
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!5 = !DILocation(scope: !0)
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!6 = !DILocation(scope: !0, column: 0, line: 0)
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; CHECK-NEXT: !4 = !DILocation(line: 4294967295, column: 65535, scope: !0)
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!7 = !DILocation(line: 4294967295, column: 65535, scope: !0)
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