Add methods for querying minimum SSE version along with AVX. Simplifies all the places that had to check a version of SSE and AVX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145053 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index 763fb43..e93f8e9 100644
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -190,6 +190,10 @@
   bool hasAVX2() const { return HasAVX2; }
   bool hasXMM() const { return hasSSE1() || hasAVX(); }
   bool hasXMMInt() const { return hasSSE2() || hasAVX(); }
+  bool hasSSE3orAVX() const { return hasSSE3() || hasAVX(); }
+  bool hasSSSE3orAVX() const { return hasSSSE3() || hasAVX(); }
+  bool hasSSE41orAVX() const { return hasSSE41() || hasAVX(); }
+  bool hasSSE42orAVX() const { return hasSSE42() || hasAVX(); }
   bool hasAES() const { return HasAES; }
   bool hasCLMUL() const { return HasCLMUL; }
   bool hasFMA3() const { return HasFMA3; }