[OPENMP] Fixed codegen for __real/__imag expressions in atomic

constructs.

For __real/__imag unary expressions clang emits lvalue with the
associated type from the original complex expression, but not the
underlying builtin integer or float type. This causes crash in codegen
for atomic constructs, if __real/__imag expression are used in atomic
  constructs.

llvm-svn: 286129

1 files changed, 4 insertions, 2 deletions

diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index a5eee2e4120..08e1cad5305 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -2276,13 +2276,15 @@ LValue CodeGenFunction::EmitUnaryOpLValue(const UnaryOperator *E) {
       return LV;
     }
 
-    assert(E->getSubExpr()->getType()->isAnyComplexType());
+    QualType T = ExprTy->castAs<ComplexType>()->getElementType();
 
     Address Component =
       (E->getOpcode() == UO_Real
          ? emitAddrOfRealComponent(LV.getAddress(), LV.getType())
          : emitAddrOfImagComponent(LV.getAddress(), LV.getType()));
-    return MakeAddrLValue(Component, ExprTy, LV.getAlignmentSource());
+    LValue ElemLV = MakeAddrLValue(Component, T, LV.getAlignmentSource());
+    ElemLV.getQuals().addQualifiers(LV.getQuals());
+    return ElemLV;
   }
   case UO_PreInc:
   case UO_PreDec: {