Author: efriedma
Date: Fri Jun 24 21:58:47 2011
New Revision: 133864
URL: http://llvm.org/viewvc/llvm-project?rev=133864&view=rev
Log:
Cleanup cast IRGen a bit; no intended functionality change.
Modified:
cfe/trunk/lib/CodeGen/CGExprComplex.cpp
cfe/trunk/lib/CodeGen/CGExprScalar.cpp
Modified: cfe/trunk/lib/CodeGen/CGExprComplex.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGExprComplex.cpp?rev=133864&r1=133863&r2=133864&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGExprComplex.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGExprComplex.cpp Fri Jun 24 21:58:47 2011
@@ -352,6 +352,8 @@
ComplexPairTy ComplexExprEmitter::EmitCast(CastExpr::CastKind CK, Expr *Op,
QualType DestTy) {
switch (CK) {
+ case CK_Dependent: llvm_unreachable("dependent cast kind in IR gen!");
+
case CK_GetObjCProperty: {
LValue LV = CGF.EmitLValue(Op);
assert(LV.isPropertyRef() && "Unknown LValue type!");
@@ -360,39 +362,73 @@
case CK_NoOp:
case CK_LValueToRValue:
+ case CK_UserDefinedConversion:
return Visit(Op);
- // TODO: do all of these
- default:
- break;
- }
-
- // Two cases here: cast from (complex to complex) and (scalar to complex).
- if (Op->getType()->isAnyComplexType())
- return EmitComplexToComplexCast(Visit(Op), Op->getType(), DestTy);
-
- // FIXME: We should be looking at all of the cast kinds here, not
- // cherry-picking the ones we have test cases for.
- if (CK == CK_LValueBitCast) {
+ case CK_LValueBitCast: {
llvm::Value *V = CGF.EmitLValue(Op).getAddress();
V = Builder.CreateBitCast(V,
-
CGF.ConvertType(CGF.getContext().getPointerType(DestTy)));
+ CGF.ConvertType(CGF.getContext().getPointerType(DestTy)));
// FIXME: Are the qualifiers correct here?
return EmitLoadOfComplex(V, DestTy.isVolatileQualified());
}
-
- // C99 6.3.1.7: When a value of real type is converted to a complex type, the
- // real part of the complex result value is determined by the rules of
- // conversion to the corresponding real type and the imaginary part of the
- // complex result value is a positive zero or an unsigned zero.
- llvm::Value *Elt = CGF.EmitScalarExpr(Op);
-
- // Convert the input element to the element type of the complex.
- DestTy = DestTy->getAs<ComplexType>()->getElementType();
- Elt = CGF.EmitScalarConversion(Elt, Op->getType(), DestTy);
- // Return (realval, 0).
- return ComplexPairTy(Elt, llvm::Constant::getNullValue(Elt->getType()));
+ case CK_BitCast:
+ case CK_BaseToDerived:
+ case CK_DerivedToBase:
+ case CK_UncheckedDerivedToBase:
+ case CK_Dynamic:
+ case CK_ToUnion:
+ case CK_ArrayToPointerDecay:
+ case CK_FunctionToPointerDecay:
+ case CK_NullToPointer:
+ case CK_NullToMemberPointer:
+ case CK_BaseToDerivedMemberPointer:
+ case CK_DerivedToBaseMemberPointer:
+ case CK_MemberPointerToBoolean:
+ case CK_ConstructorConversion:
+ case CK_IntegralToPointer:
+ case CK_PointerToIntegral:
+ case CK_PointerToBoolean:
+ case CK_ToVoid:
+ case CK_VectorSplat:
+ case CK_IntegralCast:
+ case CK_IntegralToBoolean:
+ case CK_IntegralToFloating:
+ case CK_FloatingToIntegral:
+ case CK_FloatingToBoolean:
+ case CK_FloatingCast:
+ case CK_AnyPointerToObjCPointerCast:
+ case CK_AnyPointerToBlockPointerCast:
+ case CK_ObjCObjectLValueCast:
+ case CK_FloatingComplexToReal:
+ case CK_FloatingComplexToBoolean:
+ case CK_IntegralComplexToReal:
+ case CK_IntegralComplexToBoolean:
+ case CK_ObjCProduceObject:
+ case CK_ObjCConsumeObject:
+ llvm_unreachable("invalid cast kind for complex value");
+
+ case CK_FloatingRealToComplex:
+ case CK_IntegralRealToComplex: {
+ llvm::Value *Elt = CGF.EmitScalarExpr(Op);
+
+ // Convert the input element to the element type of the complex.
+ DestTy = DestTy->getAs<ComplexType>()->getElementType();
+ Elt = CGF.EmitScalarConversion(Elt, Op->getType(), DestTy);
+
+ // Return (realval, 0).
+ return ComplexPairTy(Elt, llvm::Constant::getNullValue(Elt->getType()));
+ }
+
+ case CK_FloatingComplexCast:
+ case CK_FloatingComplexToIntegralComplex:
+ case CK_IntegralComplexCast:
+ case CK_IntegralComplexToFloatingComplex:
+ return EmitComplexToComplexCast(Visit(Op), Op->getType(), DestTy);
+ }
+
+ llvm_unreachable("unknown cast resulting in complex value");
}
ComplexPairTy ComplexExprEmitter::VisitUnaryMinus(const UnaryOperator *E) {
Modified: cfe/trunk/lib/CodeGen/CGExprScalar.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGExprScalar.cpp?rev=133864&r1=133863&r2=133864&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGExprScalar.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGExprScalar.cpp Fri Jun 24 21:58:47 2011
@@ -1146,15 +1146,10 @@
return Builder.CreateIntToPtr(IntResult, ConvertType(DestTy));
}
- case CK_PointerToIntegral: {
- Value *Src = Visit(const_cast<Expr*>(E));
+ case CK_PointerToIntegral:
+ assert(!DestTy->isBooleanType() && "bool should use PointerToBool");
+ return Builder.CreatePtrToInt(Visit(E), ConvertType(DestTy));
- // Handle conversion to bool correctly.
- if (DestTy->isBooleanType())
- return EmitScalarConversion(Src, E->getType(), DestTy);
-
- return Builder.CreatePtrToInt(Src, ConvertType(DestTy));
- }
case CK_ToVoid: {
CGF.EmitIgnoredExpr(E);
return 0;
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