[PATCH v2 49/51] tcg/optimize: Remove z_mask, s_mask from OptContext

[Richard Henderson]

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

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/optimize.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 94be844ee5..2b64b8a0ec 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 of clrsb(value) bits */
     TCGType type;
 } OptContext;
 
@@ -986,14 +984,6 @@ 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;
-            ts_info(ts)->s_mask = ctx->s_mask;
-        }
     }
     return true;
 }
@@ -2907,10 +2897,6 @@ 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.
-- 
2.43.0