AArch64/ARM64: use HS instead of CS & LO instead of CC.

On instructions using the NZCV register, a couple of conditions have dual
representations: HS/CS and LO/CC (meaning unsigned-higher-or-same/carry-set and
unsigned-lower/carry-clear). The first of these is more descriptive in most
circumstances, so we should print it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207644 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM64/ARM64FastISel.cpp

@@ -737,9 +737,9 @@ static ARM64CC::CondCode getCompareCC(CmpInst::Predicate Pred) {
   case CmpInst::ICMP_NE:
     return ARM64CC::NE;
   case CmpInst::ICMP_UGE:
-    return ARM64CC::CS;
+    return ARM64CC::HS;
   case CmpInst::ICMP_ULT:
-    return ARM64CC::CC;
+    return ARM64CC::LO;
   }
 }