add another sandybridge alias.

llvm-svn: 132772
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index 5d1ad92..4299aa4 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -215,6 +215,7 @@
       case 37: // Intel Core i7, laptop version.
         return "corei7";
       case 42: // SandyBridge
+      case 45:
         return "corei7-avx";
 
       case 28: // Intel Atom processor. All processors are manufactured using