Favor FMA3 over FMA4 if both are enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162454 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index 6841c5bafa32fab96a8ccaaef5be427be1be5aa7..3280ce52fd6df4b03313192b9804eb86802bc183 100644 (file)
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -205,7 +205,8 @@ public:
   bool hasAES() const { return HasAES; }
   bool hasPCLMUL() const { return HasPCLMUL; }
   bool hasFMA() const { return HasFMA; }
-  bool hasFMA4() const { return HasFMA4; }
+  // FIXME: Favor FMA when both are enabled. Is this right?
+  bool hasFMA4() const { return HasFMA4 && !HasFMA; }
   bool hasXOP() const { return HasXOP; }
   bool hasMOVBE() const { return HasMOVBE; }
   bool hasRDRAND() const { return HasRDRAND; }