[cfe-commits] r41247 - /cfe/trunk/CodeGen/CGComplexExpr.cpp

[Chris Lattner]

Author: lattner
Date: Tue Aug 21 15:08:23 2007
New Revision: 41247

URL: http://llvm.org/viewvc/llvm-project?rev=41247&view=rev
Log:
implement codegen for complex unary +/-


Modified:
    cfe/trunk/CodeGen/CGComplexExpr.cpp

Modified: cfe/trunk/CodeGen/CGComplexExpr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CodeGen/CGComplexExpr.cpp?rev=41247&r1=41246&r2=41247&view=diff

==============================================================================
--- cfe/trunk/CodeGen/CGComplexExpr.cpp (original)
+++ cfe/trunk/CodeGen/CGComplexExpr.cpp Tue Aug 21 15:08:23 2007
@@ -74,7 +74,10 @@
   ComplexPairTy VisitArraySubscriptExpr(Expr *E) { return EmitLoadOfLValue(E); }
 
   // Operators.
-  //  case Expr::UnaryOperatorClass:
+  ComplexPairTy VisitUnaryPlus     (const UnaryOperator *E) {
+    return Visit(E->getSubExpr());
+  }
+  ComplexPairTy VisitUnaryMinus    (const UnaryOperator *E);
   //  case Expr::ImplicitCastExprClass:
   //  case Expr::CastExprClass: 
   //  case Expr::CallExprClass:
@@ -143,6 +146,14 @@
   return ComplexPairTy(U, U);
 }
 
+ComplexPairTy ComplexExprEmitter::VisitUnaryMinus(const UnaryOperator *E) {
+  ComplexPairTy Op = Visit(E->getSubExpr());
+  llvm::Value *ResR = Builder.CreateNeg(Op.first,  "neg.r");
+  llvm::Value *ResI = Builder.CreateNeg(Op.second, "neg.i");
+  return ComplexPairTy(ResR, ResI);
+}
+
+
 ComplexPairTy ComplexExprEmitter::VisitBinAdd(const BinaryOperator *E) {
   ComplexPairTy LHS = Visit(E->getLHS());
   ComplexPairTy RHS = Visit(E->getRHS());