Provide half floating point support as a storage only type.

Lack of half FP was a regression compared to llvm-gcc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142016 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index d3c4da8816..3300444a1c 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -2416,6 +2416,12 @@ Sema::PerformImplicitConversion(Expr *From, QualType ToType,
   }
 
   case ICK_Boolean_Conversion:
+    // Perform half-to-boolean conversion via float.
+    if (From->getType()->isHalfType()) {
+      From = ImpCastExprToType(From, Context.FloatTy, CK_FloatingCast).take();
+      FromType = Context.FloatTy;
+    }
+
     From = ImpCastExprToType(From, Context.BoolTy,
                              ScalarTypeToBooleanCastKind(FromType), 
                              VK_RValue, /*BasePath=*/0, CCK).take();