Update atomicrmw-uinc-udec-wrap.ll

Author: AZero13

llvm/test/CodeGen/ARM/atomicrmw-uinc-udec-wrap.ll

@@ -34,6 +34,7 @@ define i16 @atomicrmw_uinc_wrap_i16(ptr %ptr, i16 %val) {
 ; CHECK-NEXT:    cmp r1, r12
 ; CHECK-NEXT:    add r3, r1, #1
 ; CHECK-NEXT:    movwhs r3, #0
+; CHECK-NEXT:    bic r3, r3, #65536
 ; CHECK-NEXT:    strexh r2, r3, [r0]
 ; CHECK-NEXT:    cmp r2, #0
 ; CHECK-NEXT:    bne .LBB1_1