[v3,48/51] tcg/optimize: Remove z_mask, s_mask from OptContext

Commit Message

Richard Henderson Dec. 22, 2024, 4:24 p.m. UTC

All mask setting is now done with parameters via fold_masks_*.

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

Patch

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 7481b59d59..902c219032 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -64,8 +64,6 @@  typedef struct OptContext {
     QSIMPLEQ_HEAD(, MemCopyInfo) mem_free;
 
     /* In flight values from optimization. */
-    uint64_t z_mask;  /* mask bit is 0 iff value bit is 0 */
-    uint64_t s_mask;  /* mask bit is 1 if value bit matches msb */
     TCGType type;
 } OptContext;
 
@@ -947,13 +945,6 @@  static bool finish_folding(OptContext *ctx, TCGOp *op)
     for (i = 0; i < nb_oargs; i++) {
         TCGTemp *ts = arg_temp(op->args[i]);
         reset_ts(ctx, ts);
-        /*
-         * Save the corresponding known-zero/sign bits mask for the
-         * first output argument (only one supported so far).
-         */
-        if (i == 0) {
-            ts_info(ts)->z_mask = ctx->z_mask;
-        }
     }
     return true;
 }
@@ -2862,10 +2853,6 @@  void tcg_optimize(TCGContext *s)
             ctx.type = TCG_TYPE_I32;
         }
 
-        /* Assume all bits affected, no bits known zero, no sign reps. */
-        ctx.z_mask = -1;
-        ctx.s_mask = 0;
-
         /*
          * Process each opcode.
          * Sorted alphabetically by opcode as much as possible.