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tcg/optimize: Build and use o_bits in fold_shift

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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
2025-06-30 07:42:38 -06:00
parent f4a818a08d
commit 03329e3ce4
1 changed files with 4 additions and 2 deletions
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tcg/optimize.c
+4 -2
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@@ -2675,7 +2675,7 @@ static bool fold_sextract(OptContext *ctx, TCGOp *op)
static bool fold_shift(OptContext *ctx, TCGOp *op)
{
uint64_t s_mask, z_mask;
uint64_t s_mask, z_mask, o_mask;
TempOptInfo *t1, *t2;
if (fold_const2(ctx, op) ||
@@ -2688,14 +2688,16 @@ static bool fold_shift(OptContext *ctx, TCGOp *op)
t2 = arg_info(op->args[2]);
s_mask = t1->s_mask;
z_mask = t1->z_mask;
o_mask = t1->o_mask;
if (ti_is_const(t2)) {
int sh = ti_const_val(t2);
z_mask = do_constant_folding(op->opc, ctx->type, z_mask, sh);
o_mask = do_constant_folding(op->opc, ctx->type, o_mask, sh);
s_mask = do_constant_folding(op->opc, ctx->type, s_mask, sh);
return fold_masks_zs(ctx, op, z_mask, s_mask);
return fold_masks_zos(ctx, op, z_mask, o_mask, s_mask);
}
switch (op->opc) {