[PULL 48/72] tcg/optimize: Use fold_masks_zs in fold_xor

[Richard Henderson]

Avoid the use of the OptContext slots.  Find TempOptInfo once.
Remove fold_masks as the function becomes unused.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/optimize.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 047cb5a1ee..d543266b8d 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1077,11 +1077,6 @@ static bool fold_masks_s(OptContext *ctx, TCGOp *op, 
uint64_t s_mask)
     return fold_masks_zs(ctx, op, -1, s_mask);
 }
 
-static bool fold_masks(OptContext *ctx, TCGOp *op)
-{
-    return fold_masks_zs(ctx, op, ctx->z_mask, ctx->s_mask);
-}
-
 /*
  * An "affected" mask bit is 0 if and only if the result is identical
  * to the first input.  Thus if the entire mask is 0, the operation
@@ -2769,6 +2764,9 @@ static bool fold_tcg_st_memcopy(OptContext *ctx, TCGOp 
*op)
 
 static bool fold_xor(OptContext *ctx, TCGOp *op)
 {
+    uint64_t z_mask, s_mask;
+    TempOptInfo *t1, *t2;
+
     if (fold_const2_commutative(ctx, op) ||
         fold_xx_to_i(ctx, op, 0) ||
         fold_xi_to_x(ctx, op, 0) ||
@@ -2776,11 +2774,11 @@ static bool fold_xor(OptContext *ctx, TCGOp *op)
         return true;
     }
 
-    ctx->z_mask = arg_info(op->args[1])->z_mask
-                | arg_info(op->args[2])->z_mask;
-    ctx->s_mask = arg_info(op->args[1])->s_mask
-                & arg_info(op->args[2])->s_mask;
-    return fold_masks(ctx, op);
+    t1 = arg_info(op->args[1]);
+    t2 = arg_info(op->args[2]);
+    z_mask = t1->z_mask | t2->z_mask;
+    s_mask = t1->s_mask & t2->s_mask;
+    return fold_masks_zs(ctx, op, z_mask, s_mask);
 }
 
 static bool fold_bitsel_vec(OptContext *ctx, TCGOp *op)
-- 
2.43.0