Fix a typo pointd out by Maarten ter Huurne.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41059 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 11b5662..ab7a7ed 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -5061,7 +5061,7 @@
       else if (VT == MVT::i16)
         return make_vector<unsigned>(X86::AX, X86::DX, X86::CX, X86::BX, 0);
       else if (VT == MVT::i8)
-        return make_vector<unsigned>(X86::AL, X86::DL, X86::CL, X86::DL, 0);
+        return make_vector<unsigned>(X86::AL, X86::DL, X86::CL, X86::BL, 0);
         break;
     }
   }