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