diff mbox series

[08/20] tcg/optimize: Build and use z_bits and o_bits in fold_not

Message ID 20250505202751.3510517-9-richard.henderson@linaro.org
State New
Headers show
Series tcg/optimize: Track and use known 1's | expand

Commit Message

Richard Henderson May 5, 2025, 8:27 p.m. UTC 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/optimize.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tcg/optimize.c b/tcg/optimize.c
index d5256aa02c..8fbf682e6d 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -2246,10 +2246,14 @@  static bool fold_nor(OptContext *ctx, TCGOp *op)
 
 static bool fold_not(OptContext *ctx, TCGOp *op)
 {
+    TempOptInfo *t1;
+
     if (fold_const1(ctx, op)) {
         return true;
     }
-    return fold_masks_s(ctx, op, arg_info(op->args[1])->s_mask);
+
+    t1 = arg_info(op->args[1]);
+    return fold_masks_zos(ctx, op, ~t1->o_mask, ~t1->z_mask, t1->s_mask);
 }
 
 static bool fold_or(OptContext *ctx, TCGOp *op)