Add a few more complex-related cast kinds that arise due to arbitrary

implicit conversions;  the last batch was specific to promotions.
I think this is the full set we need.  I do think dividing the cast
kinds into floating and integral is probably a good idea.

Annotate a *lot* more C casts with useful cast kinds.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119036 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 172a811bee..8a6d4ba7c4 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -2073,7 +2073,14 @@ bool FloatExprEvaluator::VisitCastExpr(CastExpr *E) {
                                     Result, Info.Ctx);
     return true;
   }
-  // FIXME: Handle complex types
+
+  if (E->getCastKind() == CK_FloatingComplexToReal) {
+    ComplexValue V;
+    if (!EvaluateComplex(SubExpr, V, Info))
+      return false;
+    Result = V.getComplexFloatReal();
+    return true;
+  }
 
   return false;
 }