Don't disable MMX support when AVX is enabled. Fix predicates for MMX instructions that were added along with SSE instructions to check for AVX in addition to SSE level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147762 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 4f0309b..c31db42 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -386,7 +386,7 @@
     ToggleFeature(X86::Mode64Bit);
 
   if (HasAVX)
-    X86SSELevel = NoMMXSSE;
+    X86SSELevel = MMX;
     
   DEBUG(dbgs() << "Subtarget features: SSELevel " << X86SSELevel
                << ", 3DNowLevel " << X863DNowLevel