[PATCH 11/46] tcg/optimize: Use fold_and and fold_masks_z in fold_deposit

[Richard Henderson]

When we fold to and, use fold_and, which sets s_mask
and a_mask more intelligently than we do for the
rest of deposit.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/optimize.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 424ed7674d..4d5fa04199 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1620,6 +1620,7 @@ static bool fold_ctpop(OptContext *ctx, TCGOp *op)
 static bool fold_deposit(OptContext *ctx, TCGOp *op)
 {
     TCGOpcode and_opc;
+    uint64_t z_mask;
 
     if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
         uint64_t t1 = arg_info(op->args[1])->val;
@@ -1647,8 +1648,7 @@ static bool fold_deposit(OptContext *ctx, TCGOp *op)
         op->opc = and_opc;
         op->args[1] = op->args[2];
         op->args[2] = arg_new_constant(ctx, mask);
-        ctx->z_mask = mask & arg_info(op->args[1])->z_mask;
-        return false;
+        return fold_and(ctx, op);
     }
 
     /* Inserting zero into a value. */
@@ -1657,14 +1657,12 @@ static bool fold_deposit(OptContext *ctx, TCGOp *op)
 
         op->opc = and_opc;
         op->args[2] = arg_new_constant(ctx, mask);
-        ctx->z_mask = mask & arg_info(op->args[1])->z_mask;
-        return false;
+        return fold_and(ctx, op);
     }
 
-    ctx->z_mask = deposit64(arg_info(op->args[1])->z_mask,
-                            op->args[3], op->args[4],
-                            arg_info(op->args[2])->z_mask);
-    return false;
+    z_mask = deposit64(arg_info(op->args[1])->z_mask, op->args[3], op->args[4],
+                       arg_info(op->args[2])->z_mask);
+    return fold_masks_z(ctx, op, z_mask);
 }
 
 static bool fold_divide(OptContext *ctx, TCGOp *op)
-- 
2.43.0