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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
23 lines
940 B
LLVM
23 lines
940 B
LLVM
; RUN: llc %s -mtriple=i686-pc-linux-gnu -o - | FileCheck %s
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; Test that we produce a .debug_frame, not an .eh_frame
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; CHECK: .cfi_sections .debug_frame
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define void @f() nounwind {
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entry:
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ret void
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}
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7}
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!5 = !{!0}
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!0 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !6, scope: !1, type: !3, function: void ()* @f)
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!1 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/llvm/build")
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: true, emissionKind: 0, file: !6, enums: !{}, retainedTypes: !{}, subprograms: !5)
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!3 = !DISubroutineType(types: !4)
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!4 = !{null}
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!6 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/llvm/build")
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!7 = !{i32 1, !"Debug Info Version", i32 3}
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