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Cleanup for ScalarExprEmitter::EmitCastExpr; no functional changes.

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llvm-svn: 89986
This commit is contained in:
Eli Friedman
2009-11-27 02:07:44 +00:00
parent 14444f5c1a
commit 0dfc6804ff
1 changed files with 19 additions and 15 deletions
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34
clang/lib/CodeGen/CGExprScalar.cpp
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@@ -790,11 +790,10 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
if (!DestTy->isVoidType())
TestAndClearIgnoreResultAssign();
// Since almost all cast kinds apply to scalars, this switch doesn't have
// a default case, so the compiler will warn on a missing case. The cases
// are in the same order as in the CastKind enum.
switch (Kind) {
default:
//return CGF.ErrorUnsupported(E, "type of cast");
break;
case CastExpr::CK_Unknown:
//assert(0 && "Unknown cast kind!");
break;
@@ -818,7 +817,6 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
return CGF.GetAddressOfDerivedClass(Src, BaseClassDecl, DerivedClassDecl,
NullCheckValue);
}
case CastExpr::CK_DerivedToBase: {
const RecordType *DerivedClassTy =
E->getType()->getAs<PointerType>()->getPointeeType()->getAs<RecordType>();
@@ -835,6 +833,11 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
return CGF.GetAddressOfBaseClass(Src, DerivedClassDecl, BaseClassDecl,
NullCheckValue);
}
case CastExpr::CK_Dynamic: {
Value *V = Visit(const_cast<Expr*>(E));
const CXXDynamicCastExpr *DCE = cast<CXXDynamicCastExpr>(CE);
return CGF.EmitDynamicCast(V, DCE);
}
case CastExpr::CK_ToUnion: {
assert(0 && "Should be unreachable!");
break;
@@ -863,6 +866,12 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
case CastExpr::CK_NullToMemberPointer:
return CGF.CGM.EmitNullConstant(DestTy);
case CastExpr::CK_BaseToDerivedMemberPointer:
case CastExpr::CK_DerivedToBaseMemberPointer:
case CastExpr::CK_UserDefinedConversion:
case CastExpr::CK_ConstructorConversion:
break;
case CastExpr::CK_IntegralToPointer: {
Value *Src = Visit(const_cast<Expr*>(E));
@@ -876,23 +885,14 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
return Builder.CreateIntToPtr(IntResult, ConvertType(DestTy));
}
case CastExpr::CK_PointerToIntegral: {
Value *Src = Visit(const_cast<Expr*>(E));
return Builder.CreatePtrToInt(Src, ConvertType(DestTy));
}
case CastExpr::CK_ToVoid: {
CGF.EmitAnyExpr(E, 0, false, true);
return 0;
}
case CastExpr::CK_Dynamic: {
Value *V = Visit(const_cast<Expr*>(E));
const CXXDynamicCastExpr *DCE = cast<CXXDynamicCastExpr>(CE);
return CGF.EmitDynamicCast(V, DCE);
}
case CastExpr::CK_VectorSplat: {
const llvm::Type *DstTy = ConvertType(DestTy);
Value *Elt = Visit(const_cast<Expr*>(E));
@@ -914,6 +914,11 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
llvm::Value *Yay = Builder.CreateShuffleVector(UnV, UnV, Mask, "splat");
return Yay;
}
case CastExpr::CK_IntegralCast:
case CastExpr::CK_IntegralToFloating:
case CastExpr::CK_FloatingToIntegral:
case CastExpr::CK_FloatingCast:
break;
case CastExpr::CK_MemberPointerToBoolean: {
const MemberPointerType* T = E->getType()->getAs<MemberPointerType>();
@@ -943,7 +948,6 @@ Value *ScalarExprEmitter::EmitCastExpr(const CastExpr *CE) {
"tobool");
return IsNotNull;
}
}
// Handle cases where the source is an non-complex type.