llvm/test/Assembler/dilocation.ll
Duncan P. N. Exon Smith a5ae7c1c9f DI: Require subprogram definitions to be distinct
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
2015-08-28 20:26:49 +00:00

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869 B
LLVM

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