Fix a comment that referred to the now defunct ubyte type.

llvm-svn: 32840
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index ca9cfcd..b7520d4 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -4453,7 +4453,7 @@
     Entry.Ty = IntPtrTy;
     Entry.isSigned = false;
     Args.push_back(Entry);
-    // Extend the ubyte argument to be an int value for the call.
+    // Extend the unsigned i8 argument to be an int value for the call.
     Entry.Node = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Op.getOperand(2));
     Entry.Ty = IntPtrTy;
     Entry.isSigned = false;