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Use a switch statement in VisitCastExpr. 

llvm-svn: 83038
This commit is contained in:
Anders Carlsson 2009-09-29 01:23:39 +00:00
parent d30d820dc4
commit 1fb7ae9e3c
1 changed files with 16 additions and 12 deletions
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28
clang/lib/CodeGen/CGExprAgg.cpp
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@ -174,27 +174,31 @@ void AggExprEmitter::EmitFinalDestCopy(const Expr *E, LValue Src, bool Ignore) {
//===----------------------------------------------------------------------===//
void AggExprEmitter::VisitCastExpr(CastExpr *E) {
if (E->getCastKind() == CastExpr::CK_ToUnion) {
switch (E->getCastKind()) {
default: assert(0 && "Unhandled cast kind!");
case CastExpr::CK_ToUnion: {
// GCC union extension
QualType PtrTy =
CGF.getContext().getPointerType(E->getSubExpr()->getType());
CGF.getContext().getPointerType(E->getSubExpr()->getType());
llvm::Value *CastPtr = Builder.CreateBitCast(DestPtr,
CGF.ConvertType(PtrTy));
EmitInitializationToLValue(E->getSubExpr(),
LValue::MakeAddr(CastPtr, Qualifiers()));
return;
break;
}
// FIXME: Remove the CK_Unknown check here.
assert((E->getCastKind() == CastExpr::CK_NoOp ||
E->getCastKind() == CastExpr::CK_Unknown ||
E->getCastKind() == CastExpr::CK_UserDefinedConversion ||
E->getCastKind() == CastExpr::CK_ConstructorConversion) &&
"Only no-op casts allowed!");
assert(CGF.getContext().hasSameUnqualifiedType(E->getSubExpr()->getType(),
E->getType()) &&
"Implicit cast types must be compatible");
Visit(E->getSubExpr());
case CastExpr::CK_Unknown:
case CastExpr::CK_NoOp:
case CastExpr::CK_UserDefinedConversion:
case CastExpr::CK_ConstructorConversion:
assert(CGF.getContext().hasSameUnqualifiedType(E->getSubExpr()->getType(),
E->getType()) &&
"Implicit cast types must be compatible");
Visit(E->getSubExpr());
break;
}
}
void AggExprEmitter::VisitCallExpr(const CallExpr *E) {