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tcg/optimize: Build and use o_bits in fold_extu

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Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-12-10 15:58:04 -06:00
parent de85257f14
commit f78342472f
1 changed files with 9 additions and 3 deletions
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12
tcg/optimize.c
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@ -2039,25 +2039,31 @@ static bool fold_exts(OptContext *ctx, TCGOp *op)
static bool fold_extu(OptContext *ctx, TCGOp *op)
{
uint64_t z_mask;
uint64_t z_mask, o_mask;
TempOptInfo *t1;
if (fold_const1(ctx, op)) {
return true;
}
z_mask = arg_info(op->args[1])->z_mask;
t1 = arg_info(op->args[1]);
z_mask = t1->z_mask;
o_mask = t1->o_mask;
switch (op->opc) {
case INDEX_op_extrl_i64_i32:
case INDEX_op_extu_i32_i64:
z_mask = (uint32_t)z_mask;
o_mask = (uint32_t)o_mask;
break;
case INDEX_op_extrh_i64_i32:
z_mask >>= 32;
o_mask >>= 32;
break;
default:
g_assert_not_reached();
}
return fold_masks_z(ctx, op, z_mask);
return fold_masks_zo(ctx, op, z_mask, o_mask);
}
static bool fold_mb(OptContext *ctx, TCGOp *op)