diff options
| -rw-r--r-- | CodeGen/CGComplexExpr.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/CodeGen/CGComplexExpr.cpp b/CodeGen/CGComplexExpr.cpp index f62a315f3a..174748ab81 100644 --- a/CodeGen/CGComplexExpr.cpp +++ b/CodeGen/CGComplexExpr.cpp @@ -74,6 +74,21 @@ public: ComplexPairTy VisitArraySubscriptExpr(Expr *E) { return EmitLoadOfLValue(E); } // Operators. + ComplexPairTy VisitPrePostIncDec(const UnaryOperator *E, + bool isInc, bool isPre); + ComplexPairTy VisitUnaryPostDec(const UnaryOperator *E) { + return VisitPrePostIncDec(E, false, false); + } + ComplexPairTy VisitUnaryPostInc(const UnaryOperator *E) { + return VisitPrePostIncDec(E, true, false); + } + ComplexPairTy VisitUnaryPreDec(const UnaryOperator *E) { + return VisitPrePostIncDec(E, false, true); + } + ComplexPairTy VisitUnaryPreInc(const UnaryOperator *E) { + return VisitPrePostIncDec(E, true, true); + } + ComplexPairTy VisitUnaryDeref(const Expr *E) { return EmitLoadOfLValue(E); } ComplexPairTy VisitUnaryPlus (const UnaryOperator *E) { return Visit(E->getSubExpr()); } @@ -152,6 +167,33 @@ ComplexPairTy ComplexExprEmitter::VisitExpr(Expr *E) { return ComplexPairTy(U, U); } +ComplexPairTy ComplexExprEmitter::VisitPrePostIncDec(const UnaryOperator *E, + bool isInc, bool isPre) { + LValue LV = CGF.EmitLValue(E->getSubExpr()); + // FIXME: Handle volatile! + ComplexPairTy InVal = EmitLoadOfComplex(LV.getAddress(), false); + + int AmountVal = isInc ? 1 : -1; + + llvm::Value *NextVal; + if (isa<llvm::IntegerType>(InVal.first->getType())) + NextVal = llvm::ConstantInt::get(InVal.first->getType(), AmountVal); + else + NextVal = llvm::ConstantFP::get(InVal.first->getType(), AmountVal); + + // Add the inc/dec to the real part. + NextVal = Builder.CreateAdd(InVal.first, NextVal, isInc ? "inc" : "dec"); + + ComplexPairTy IncVal(NextVal, InVal.second); + + // Store the updated result through the lvalue. + EmitStoreOfComplex(IncVal, LV.getAddress(), false); /* FIXME: Volatile */ + + // If this is a postinc, return the value read from memory, otherwise use the + // updated value. + return isPre ? IncVal : InVal; +} + ComplexPairTy ComplexExprEmitter::VisitUnaryMinus(const UnaryOperator *E) { ComplexPairTy Op = Visit(E->getSubExpr()); llvm::Value *ResR = Builder.CreateNeg(Op.first, "neg.r"); |