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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
40 lines
1.8 KiB
LLVM
40 lines
1.8 KiB
LLVM
; RUN: opt < %s -loop-reduce
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"
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%struct.nsTArray = type { i8 }
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%struct.nsTArrayHeader = type { i32 }
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define void @_Z6foobarR8nsTArray(%struct.nsTArray* %aValues, i32 %foo, %struct.nsTArrayHeader* %bar) nounwind {
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entry:
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br label %for.body
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for.body: ; preds = %_ZN8nsTArray9ElementAtEi.exit, %entry
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%i.06 = phi i32 [ %add, %_ZN8nsTArray9ElementAtEi.exit ], [ 0, %entry ]
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%call.i = call %struct.nsTArrayHeader* @_ZN8nsTArray4Hdr2Ev() nounwind
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%add.ptr.i = getelementptr inbounds %struct.nsTArrayHeader, %struct.nsTArrayHeader* %call.i, i32 1
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%tmp = bitcast %struct.nsTArrayHeader* %add.ptr.i to %struct.nsTArray*
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%arrayidx = getelementptr inbounds %struct.nsTArray, %struct.nsTArray* %tmp, i32 %i.06
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%add = add nsw i32 %i.06, 1
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call void @llvm.dbg.value(metadata %struct.nsTArray* %aValues, i64 0, metadata !0, metadata !DIExpression()) nounwind, !dbg !DILocation(scope: !1)
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br label %_ZN8nsTArray9ElementAtEi.exit
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_ZN8nsTArray9ElementAtEi.exit: ; preds = %for.body
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%arrayidx.i = getelementptr inbounds %struct.nsTArray, %struct.nsTArray* %tmp, i32 %add
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call void @_ZN11nsTArray15ComputeDistanceERKS_Rd(%struct.nsTArray* %arrayidx, %struct.nsTArray* %arrayidx.i) nounwind
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%cmp = icmp slt i32 %add, %foo
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %_ZN8nsTArray9ElementAtEi.exit
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ret void
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}
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declare void @_ZN11nsTArray15ComputeDistanceERKS_Rd(%struct.nsTArray*, %struct.nsTArray*)
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declare %struct.nsTArrayHeader* @_ZN8nsTArray4Hdr2Ev()
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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!0 = !DILocalVariable(scope: !1)
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!1 = distinct !DISubprogram()
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