[v2,11/51] tcg/optimize: Use fold_masks_z in fold_ctpop

Commit Message

Richard Henderson Dec. 20, 2024, 4:10 a.m. UTC

Add fold_masks_z as a trivial wrapper around fold_masks_zs.
Avoid the use of the OptContext slots.

Reviewed-by: Pierrick Bouvier <[e-mail]>
Signed-off-by: Richard Henderson <[e-mail]>
---
 tcg/optimize.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

Patch

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 270051acd1..af7111c98c 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1086,6 +1086,11 @@  static bool fold_masks_zs(OptContext *ctx, TCGOp *op,
     return true;
 }
 
+static bool fold_masks_z(OptContext *ctx, TCGOp *op, uint64_t z_mask)
+{
+    return fold_masks_zs(ctx, op, z_mask, 0);
+}
+
 static bool fold_masks(OptContext *ctx, TCGOp *op)
 {
     return fold_masks_zs(ctx, op, ctx->z_mask, ctx->s_mask);
@@ -1616,21 +1621,23 @@  static bool fold_count_zeros(OptContext *ctx, TCGOp *op)
 
 static bool fold_ctpop(OptContext *ctx, TCGOp *op)
 {
+    uint64_t z_mask;
+
     if (fold_const1(ctx, op)) {
         return true;
     }
 
     switch (ctx->type) {
     case TCG_TYPE_I32:
-        ctx->z_mask = 32 | 31;
+        z_mask = 32 | 31;
         break;
     case TCG_TYPE_I64:
-        ctx->z_mask = 64 | 63;
+        z_mask = 64 | 63;
         break;
     default:
         g_assert_not_reached();
     }
-    return false;
+    return fold_masks_z(ctx, op, z_mask);
 }
 
 static bool fold_deposit(OptContext *ctx, TCGOp *op)