Use predication instead of pseudo-opcodes when folding into MOVCC.

Now that it is possible to dynamically tie MachineInstr operands,
predicated instructions are possible in SSA form:

  %vreg3<def> = SUBri %vreg1, -2147483647, pred:14, pred:%noreg, %opt:%noreg
  %vreg4<def,tied1> = MOVCCr %vreg3<tied0>, %vreg1, %pred:12, pred:%CPSR

Becomes a predicated SUBri with a tied imp-use:

  SUBri %vreg1, -2147483647, pred:13, pred:%CPSR, opt:%noreg, %vreg1<imp-use,tied0>

This means that any instruction that is safe to move can be folded into
a MOVCC, and the *CC pseudo-instructions are no longer needed.

The test case changes reflect that Thumb2SizeReduce recognizes the
predicated instructions. It didn't understand the pseudos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163274 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/select.ll b/test/CodeGen/ARM/select.ll
index 5575566..62708ed 100644
--- a/test/CodeGen/ARM/select.ll
+++ b/test/CodeGen/ARM/select.ll
@@ -80,7 +80,7 @@
 ; CHECK-NEON:      adr     [[R2:r[0-9]+]], LCPI7_0
 ; CHECK-NEON-NEXT: cmp     r0, [[R3]]
 ; CHECK-NEON-NEXT: it      eq
-; CHECK-NEON-NEXT: addeq.w {{r.*}}, [[R2]]
+; CHECK-NEON-NEXT: addeq{{.*}} [[R2]], #4
 ; CHECK-NEON-NEXT: ldr
 ; CHECK-NEON:      bx