From: Chris Lattner <sabre@nondot.org>
Date: Tue, 21 Aug 2007 20:08:23 +0000 (+0000)
Subject: implement codegen for complex unary +/-
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fa2b9c9103393680889fe09924a3456657b23d46;p=clang

implement codegen for complex unary +/-



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41247 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/CodeGen/CGComplexExpr.cpp b/CodeGen/CGComplexExpr.cpp
index 7b159a3224..f20157b3b1 100644
--- a/CodeGen/CGComplexExpr.cpp
+++ b/CodeGen/CGComplexExpr.cpp
@@ -74,7 +74,10 @@ public:
   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 @@ ComplexPairTy ComplexExprEmitter::VisitExpr(Expr *E) {
   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());