tcg/optimize: fix tcg_opt_gen_movi

Due to a copy&paste, the new op value is tested against mov_i32 instead
of movi_i32. The test is therefore always false. Fix that.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Message-Id: <1436544211-2769-1-git-send-email-aurelien@aurel32.net>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

tcg/optimize.c

@@ -205,7 +205,7 @@ static void tcg_opt_gen_movi(TCGContext *s, TCGOp *op, TCGArg *args,
     temps[dst].state = TCG_TEMP_CONST;
     temps[dst].val = val;
     mask = val;
-    if (TCG_TARGET_REG_BITS > 32 && new_op == INDEX_op_mov_i32) {
+    if (TCG_TARGET_REG_BITS > 32 && new_op == INDEX_op_movi_i32) {
         /* High bits of the destination are now garbage.  */
         mask |= ~0xffffffffull;
     }