require that operands to __real/__imag are complex or arithmetic. This
fixes GCC PR33193
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41428 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaExpr.cpp b/Sema/SemaExpr.cpp
index e4dd9bb..a859fe8 100644
--- a/Sema/SemaExpr.cpp
+++ b/Sema/SemaExpr.cpp
@@ -283,9 +283,17 @@
QualType Sema::CheckRealImagOperand(Expr *&V, SourceLocation Loc) {
DefaultFunctionArrayConversion(V);
+ // These operators return the element type of a complex type.
if (const ComplexType *CT = V->getType()->getAsComplexType())
return CT->getElementType();
- return V->getType();
+
+ // Otherwise they pass through real integer and floating point types here.
+ if (V->getType()->isArithmeticType())
+ return V->getType();
+
+ // Reject anything else.
+ Diag(Loc, diag::err_realimag_invalid_type, V->getType().getAsString());
+ return QualType();
}