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IRgen: The CVR qualifiers in a subobject adjustment should just come from the 

field (I think).
 - Doug, please check.

llvm-svn: 111720
This commit is contained in:
Daniel Dunbar 2010-08-21 03:37:02 +00:00
parent b657ac51cf
commit e8b6cda15a
1 changed files with 10 additions and 16 deletions
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26
clang/lib/CodeGen/CGExpr.cpp
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@ -146,10 +146,7 @@ struct SubobjectAdjustment {
const CXXRecordDecl *DerivedClass;
} DerivedToBase;
struct {
FieldDecl *Field;
unsigned CVRQualifiers;
} Field;
FieldDecl *Field;
};
SubobjectAdjustment(const CastExpr *BasePath,
@ -160,11 +157,10 @@ struct SubobjectAdjustment {
DerivedToBase.DerivedClass = DerivedClass;
}
SubobjectAdjustment(FieldDecl *Field, unsigned CVRQualifiers)
: Kind(FieldAdjustment)
SubobjectAdjustment(FieldDecl *Field)
: Kind(FieldAdjustment)
{
this->Field.Field = Field;
this->Field.CVRQualifiers = CVRQualifiers;
this->Field = Field;
}
};
@ -249,8 +245,7 @@ EmitExprForReferenceBinding(CodeGenFunction& CGF, const Expr* E,
ME->getBase()->getType()->isRecordType()) {
if (FieldDecl *Field = dyn_cast<FieldDecl>(ME->getMemberDecl())) {
E = ME->getBase();
Adjustments.push_back(SubobjectAdjustment(Field,
E->getType().getCVRQualifiers()));
Adjustments.push_back(SubobjectAdjustment(Field));
continue;
}
}
@ -296,9 +291,8 @@ EmitExprForReferenceBinding(CodeGenFunction& CGF, const Expr* E,
break;
case SubobjectAdjustment::FieldAdjustment: {
unsigned CVR = Adjustment.Field.CVRQualifiers;
LValue LV =
CGF.EmitLValueForField(Object, Adjustment.Field.Field, CVR);
CGF.EmitLValueForField(Object, Adjustment.Field, 0);
if (LV.isSimple()) {
Object = LV.getAddress();
break;
@ -306,11 +300,11 @@ EmitExprForReferenceBinding(CodeGenFunction& CGF, const Expr* E,
// For non-simple lvalues, we actually have to create a copy of
// the object we're binding to.
QualType T = Adjustment.Field.Field->getType().getNonReferenceType()
.getUnqualifiedType();
QualType T = Adjustment.Field->getType().getNonReferenceType()
.getUnqualifiedType();
Object = CreateReferenceTemporary(CGF, T, InitializedDecl);
LValue TempLV = LValue::MakeAddr(Object,
Qualifiers::fromCVRMask(CVR));
LValue TempLV = CGF.MakeAddrLValue(Object,
Adjustment.Field->getType());
CGF.EmitStoreThroughLValue(CGF.EmitLoadOfLValue(LV, T), TempLV, T);
break;
}