Implement ARMBaseInstrInfo::commuteInstruction() for MOVCCr.

A MOVCCr instruction can be commuted by inverting the condition. This
can help reduce register pressure and remove unnecessary copies in some
cases.

<rdar://problem/11182914>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154033 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/machine-cse-cmp.ll b/test/CodeGen/ARM/machine-cse-cmp.ll
index f566974..3ac7d77 100644
--- a/test/CodeGen/ARM/machine-cse-cmp.ll
+++ b/test/CodeGen/ARM/machine-cse-cmp.ll
@@ -10,7 +10,7 @@
 ; CHECK: cmp
 ; CHECK: moveq
 ; CHECK-NOT: cmp
-; CHECK: moveq
+; CHECK: mov{{eq|ne}}
     %tmp1 = icmp eq i32 %cond1, 0
     %tmp2 = select i1 %tmp1, i32 %x1, i32 %x2
     %tmp3 = select i1 %tmp1, i32 %x2, i32 %x3