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Recommit, with fixes:

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Add some support for dealing with an object pointer on arguments.

    Part of rdar://9797999

which now supports adding the object pointer attribute to the
subprogram as it should.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163754 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2012-09-12 23:36:19 +00:00
parent afc945b614
commit e521278f00
7 changed files with 140 additions and 2 deletions
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24
lib/VMCore/DIBuilder.cpp
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@@ -640,6 +640,30 @@ DIType DIBuilder::createArtificialType(DIType Ty) {
return DIType(MDNode::get(VMContext, Elts));
}
/// createArtificialType - Create a new DIType with "artificial" flag set.
DIType DIBuilder::createObjectPointerType(DIType Ty) {
if (Ty.isObjectPointer())
return Ty;
SmallVector<Value *, 9> Elts;
MDNode *N = Ty;
assert (N && "Unexpected input DIType!");
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
if (Value *V = N->getOperand(i))
Elts.push_back(V);
else
Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
}
unsigned CurFlags = Ty.getFlags();
CurFlags = CurFlags | (DIType::FlagObjectPointer | DIType::FlagArtificial);
// Flags are stored at this slot.
Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
return DIType(MDNode::get(VMContext, Elts));
}
/// retainType - Retain DIType in a module even if it is not referenced
/// through debug info anchors.
void DIBuilder::retainType(DIType T) {