tcg/optimize: Split out fold_deposit

Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize.c

@@ -878,6 +878,18 @@ static bool fold_ctpop(OptContext *ctx, TCGOp *op)
     return fold_const1(ctx, op);
 }
 
+static bool fold_deposit(OptContext *ctx, TCGOp *op)
+{
+    if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
+        uint64_t t1 = arg_info(op->args[1])->val;
+        uint64_t t2 = arg_info(op->args[2])->val;
+
+        t1 = deposit64(t1, op->args[3], op->args[4], t2);
+        return tcg_opt_gen_movi(ctx, op, op->args[0], t1);
+    }
+    return false;
+}
+
 static bool fold_divide(OptContext *ctx, TCGOp *op)
 {
     return fold_const2(ctx, op);
@@ -1741,16 +1753,6 @@ void tcg_optimize(TCGContext *s)
             }
             break;
 
-        CASE_OP_32_64(deposit):
-            if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
-                tmp = deposit64(arg_info(op->args[1])->val,
-                                op->args[3], op->args[4],
-                                arg_info(op->args[2])->val);
-                tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
-                continue;
-            }
-            break;
-
         default:
             break;
 
@@ -1778,6 +1780,9 @@ void tcg_optimize(TCGContext *s)
         CASE_OP_32_64(ctpop):
             done = fold_ctpop(&ctx, op);
             break;
+        CASE_OP_32_64(deposit):
+            done = fold_deposit(&ctx, op);
+            break;
         CASE_OP_32_64(div):
         CASE_OP_32_64(divu):
             done = fold_divide(&ctx, op);