[x86] Remove OpSize16 flag from MOV32r0

It's not a real instruction any more and doesn't need encoding information.

llvm-svn: 198778

llvm/lib/Target/X86/X86InstrCompiler.td

@@ -223,8 +223,7 @@ def MORESTACK_RET_RESTORE_R10 : I<0, Pseudo, (outs), (ins),
 let Defs = [EFLAGS], isReMaterializable = 1, isAsCheapAsAMove = 1,
     isPseudo = 1 in
 def MOV32r0  : I<0, Pseudo, (outs GR32:$dst), (ins), "",
-                 [(set GR32:$dst, 0)], IIC_ALU_NONMEM>, OpSize16,
-                 Sched<[WriteZero]>;
+                 [(set GR32:$dst, 0)], IIC_ALU_NONMEM>, Sched<[WriteZero]>;
 
 // Other widths can also make use of the 32-bit xor, which may have a smaller
 // encoding and avoid partial register updates.