Index: lib/Basic/Targets/AMDGPU.cpp
===================================================================
--- lib/Basic/Targets/AMDGPU.cpp
+++ lib/Basic/Targets/AMDGPU.cpp
@@ -205,7 +205,7 @@
     if (I == "+fp64-fp16-denormals" || I == "-fp64-fp16-denormals")
       hasFP64Denormals = true;
   }
-  if (!hasFP32Denormals)
+  if (!hasFP32Denormals && isAMDGCN(getTriple()))
     TargetOpts.Features.push_back(
         (Twine(CGOptsGPU.HasFastFMAF && !CGOpts.FlushDenorm
                    ? '+'