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Correctly set attributes when removing args during cloning. Fixes PR2765

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llvm-svn: 57254
This commit is contained in:
Andrew Lenharth 2008-10-07 18:08:38 +00:00
parent 782e55a101
commit c83731e00a
1 changed files with 17 additions and 1 deletions
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18
lib/Transforms/Utils/CloneFunction.cpp
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@ -81,7 +81,23 @@ void llvm::CloneFunctionInto(Function *NewFunc, const Function *OldFunc,
#endif
// Clone any attributes.
NewFunc->copyAttributesFrom(OldFunc);
if (NewFunc->arg_size() == OldFunc->arg_size())
NewFunc->copyAttributesFrom(OldFunc);
else {
//Some arguments were deleted with the ValueMap. Copy arguments one by one
for (Function::const_arg_iterator I = OldFunc->arg_begin(),
E = OldFunc->arg_end(); I != E; ++I)
if (Argument* Anew = dyn_cast<Argument>(ValueMap[I]))
Anew->addAttr( OldFunc->getAttributes()
.getParamAttributes(I->getArgNo() + 1));
NewFunc->setAttributes(NewFunc->getAttributes()
.addAttr(0, OldFunc->getAttributes()
.getRetAttributes()));
NewFunc->setAttributes(NewFunc->getAttributes()
.addAttr(~0, OldFunc->getAttributes()
.getFnAttributes()));
}
// Loop over all of the basic blocks in the function, cloning them as
// appropriate. Note that we save BE this way in order to handle cloning of