Rename FMA3 feature flag to just FMA to match gcc so it can be added to clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157903 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index 544491f..1af585f 100644
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -88,8 +88,8 @@
   /// HasPCLMUL - Target has carry-less multiplication
   bool HasPCLMUL;
 
-  /// HasFMA3 - Target has 3-operand fused multiply-add
-  bool HasFMA3;
+  /// HasFMA - Target has 3-operand fused multiply-add
+  bool HasFMA;
 
   /// HasFMA4 - Target has 4-operand fused multiply-add
   bool HasFMA4;
@@ -204,7 +204,7 @@
   bool hasPOPCNT() const { return HasPOPCNT; }
   bool hasAES() const { return HasAES; }
   bool hasPCLMUL() const { return HasPCLMUL; }
-  bool hasFMA3() const { return HasFMA3; }
+  bool hasFMA() const { return HasFMA; }
   bool hasFMA4() const { return HasFMA4; }
   bool hasXOP() const { return HasXOP; }
   bool hasMOVBE() const { return HasMOVBE; }