llvm-mirror/test/Assembler/diimportedentity.ll
Duncan P. N. Exon Smith 0c1aee0b16 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.

llvm-svn: 246327
2015-08-28 20:26:49 +00:00

21 lines
884 B
LLVM

; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
; CHECK: !named = !{!0, !1, !2, !3, !3}
!named = !{!0, !1, !2, !3, !4}
; CHECK: !0 = distinct !DISubprogram({{.*}})
; CHECK-NEXT: !1 = !DICompositeType({{.*}})
!0 = distinct !DISubprogram(name: "foo")
!1 = !DICompositeType(tag: DW_TAG_structure_type, name: "Class", size: 32, align: 32)
; CHECK-NEXT: !2 = !DIImportedEntity(tag: DW_TAG_imported_module, name: "foo", scope: !0, entity: !1, line: 7)
!2 = !DIImportedEntity(tag: DW_TAG_imported_module, name: "foo", scope: !0,
entity: !1, line: 7)
; CHECK-NEXT: !3 = !DIImportedEntity(tag: DW_TAG_imported_module, scope: !0)
!3 = !DIImportedEntity(tag: DW_TAG_imported_module, scope: !0)
!4 = !DIImportedEntity(tag: DW_TAG_imported_module, name: "", scope: !0, entity: null,
line: 0)