Only Remove implicit conversion for the target that support fp16

Remove implicit conversion that promotes half to double
for the target that support fp16. If the target doesn't
support fp16, fp16 will be converted to fp16 intrinsic.

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 2be9eff..aff63ae 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -5822,7 +5822,8 @@ bool Sema::SemaBuiltinFPClassification(CallExpr *TheCall, unsigned NumArgs) {
             "promotion from float to either float, double, or long double is "
             "the only expected cast here");
         IgnoreCast = true;
-      } else if (CastArg->getType()->isSpecificBuiltinType(BuiltinType::Half)) {
+      } else if (CastArg->getType()->isSpecificBuiltinType(BuiltinType::Half) &&
+                 !Context.getTargetInfo().useFP16ConversionIntrinsics()) {
         assert(
             (Cast->getType()->isSpecificBuiltinType(BuiltinType::Double) ||
              Cast->getType()->isSpecificBuiltinType(BuiltinType::Float) ||