Index: clang/lib/Basic/Targets/RISCV.cpp
===================================================================
--- clang/lib/Basic/Targets/RISCV.cpp
+++ clang/lib/Basic/Targets/RISCV.cpp
@@ -315,6 +315,9 @@
   if (ABI.empty())
     ABI = ISAInfo->computeDefaultABI().str();
 
+  if (ISAInfo->hasExtension("zfh"))
+    HasLegalHalfType = true;
+
   return true;
 }