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tcg/optimize: Use fold_masks_zs in fold_sextract

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Avoid the use of the OptContext slots.  Find TempOptInfo once.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-12-08 21:09:30 -06:00
parent 210c70b7ac
commit baff507e50
1 changed files with 9 additions and 15 deletions
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24
tcg/optimize.c
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@ -2507,31 +2507,25 @@ static bool fold_cmpsel_vec(OptContext *ctx, TCGOp *op)
static bool fold_sextract(OptContext *ctx, TCGOp *op)
{
uint64_t z_mask, s_mask, s_mask_old;
TempOptInfo *t1 = arg_info(op->args[1]);
int pos = op->args[2];
int len = op->args[3];
if (arg_is_const(op->args[1])) {
uint64_t t;
t = arg_info(op->args[1])->val;
t = sextract64(t, pos, len);
return tcg_opt_gen_movi(ctx, op, op->args[0], t);
if (ti_is_const(t1)) {
return tcg_opt_gen_movi(ctx, op, op->args[0],
sextract64(ti_const_val(t1), pos, len));
}
z_mask = arg_info(op->args[1])->z_mask;
z_mask = sextract64(z_mask, pos, len);
ctx->z_mask = z_mask;
s_mask_old = arg_info(op->args[1])->s_mask;
s_mask = sextract64(s_mask_old, pos, len);
s_mask |= MAKE_64BIT_MASK(len, 64 - len);
ctx->s_mask = s_mask;
s_mask_old = t1->s_mask;
s_mask = s_mask_old >> pos;
s_mask |= -1ull << (len - 1);
if (0 && pos == 0 && fold_affected_mask(ctx, op, s_mask & ~s_mask_old)) {
return true;
}
return fold_masks(ctx, op);
z_mask = sextract64(t1->z_mask, pos, len);
return fold_masks_zs(ctx, op, z_mask, s_mask);
}
static bool fold_shift(OptContext *ctx, TCGOp *op)