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Properly handle linking of strong alias with weak function, this fixes PR2883

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57594 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2008-10-15 20:10:08 +00:00
parent eabb8866d8
commit e655e37032
1 changed files with 1 additions and 1 deletions
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2
lib/Linker/LinkModules.cpp
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@ -984,7 +984,7 @@ static bool LinkFunctionProtos(Module *Dest, const Module *Src,
// The only valid mappings are:
// - SF is external declaration, which is effectively a no-op.
// - SF is weak, when we just need to throw SF out.
if (!SF->isDeclaration())
if (!SF->isDeclaration() && !SF->mayBeOverridden())
return Error(Err, "Function-Alias Collision on '" + SF->getName() +
"': symbol multiple defined");
}