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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
38 lines
1009 B
LLVM
38 lines
1009 B
LLVM
; RUN: opt < %s -always-inline -S | FileCheck %s
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; Test that the debug location is preserved when rewriting an inlined call as an invoke
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; CHECK: invoke void @test()
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; CHECK-NEXT: to label {{.*}} unwind label {{.*}}, !dbg [[INL_LOC:!.*]]
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; CHECK: [[SP:.*]] = distinct !DISubprogram(
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; CHECK: [[INL_LOC]] = !DILocation(line: 1, scope: [[SP]], inlinedAt: [[INL_AT:.*]])
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; CHECK: [[INL_AT]] = distinct !DILocation(line: 2, scope: [[SP]])
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declare void @test()
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declare i32 @__gxx_personality_v0(...)
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attributes #0 = { alwaysinline }
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define void @inl() #0 {
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call void @test(), !dbg !3
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ret void
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}
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define void @caller() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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invoke void @inl()
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to label %cont unwind label %lpad, !dbg !4
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cont:
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ret void
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lpad:
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landingpad { i8*, i32 }
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cleanup
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ret void
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}
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!llvm.module.flags = !{!1}
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!1 = !{i32 2, !"Debug Info Version", i32 3}
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!2 = distinct !DISubprogram()
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!3 = !DILocation(line: 1, scope: !2)
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!4 = !DILocation(line: 2, scope: !2)
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