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llvm-mirror/test/Verifier/dbg.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

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563 B
LLVM

; RUN: not llvm-as -disable-output <%s 2>&1 | FileCheck %s
define void @foo() {
entry:
br label %exit, !dbg !DILocation(scope: !1, inlinedAt: !{})
; CHECK: inlined-at should be a location
; CHECK-NEXT: !{{[0-9]+}} = !DILocation(line: 0, scope: !{{[0-9]+}}, inlinedAt: ![[IA:[0-9]+]])
; CHECK-NEXT: ![[IA]] = !{}
exit:
ret void, !dbg !{}
; CHECK: invalid !dbg metadata attachment
; CHECK-NEXT: ret void, !dbg ![[LOC:[0-9]+]]
; CHECK-NEXT: ![[LOC]] = !{}
}
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"Debug Info Version", i32 3}
!1 = distinct !DISubprogram()