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Tue, 03 Jun 2025 01:10:56 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com Subject: [PATCH v2 16/27] tcg/optimize: Build and use z_bits and o_bits in fold_extract2 Date: Tue, 3 Jun 2025 09:08:57 +0100 Message-ID: <20250603080908.559594-17-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250603080908.559594-1-richard.henderson@linaro.org> References: <20250603080908.559594-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::431; envelope-from=richard.henderson@linaro.org; helo=mail-wr1-x431.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1748938281596116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Pierrick Bouvier --- tcg/optimize.c | 38 +++++++++++++++++++++++++------------- 1 file changed, 25 insertions(+), 13 deletions(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index f5fc0cfff9..86d958267a 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1099,6 +1099,12 @@ static bool fold_masks_zos(OptContext *ctx, TCGOp *o= p, return fold_masks_zosa(ctx, op, z_mask, o_mask, s_mask, -1); } =20 +static bool fold_masks_zo(OptContext *ctx, TCGOp *op, + uint64_t z_mask, uint64_t o_mask) +{ + return fold_masks_zosa(ctx, op, z_mask, o_mask, 0, -1); +} + static bool fold_masks_zs(OptContext *ctx, TCGOp *op, uint64_t z_mask, uint64_t s_mask) { @@ -1982,21 +1988,27 @@ static bool fold_extract(OptContext *ctx, TCGOp *op) =20 static bool fold_extract2(OptContext *ctx, TCGOp *op) { - if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) { - uint64_t v1 =3D arg_const_val(op->args[1]); - uint64_t v2 =3D arg_const_val(op->args[2]); - int shr =3D op->args[3]; + TempOptInfo *t1 =3D arg_info(op->args[1]); + TempOptInfo *t2 =3D arg_info(op->args[2]); + uint64_t z1 =3D t1->z_mask; + uint64_t z2 =3D t2->z_mask; + uint64_t o1 =3D t1->o_mask; + uint64_t o2 =3D t2->o_mask; + int shr =3D op->args[3]; =20 - if (ctx->type =3D=3D TCG_TYPE_I32) { - v1 =3D (uint32_t)v1 >> shr; - v2 =3D (uint64_t)((int32_t)v2 << (32 - shr)); - } else { - v1 >>=3D shr; - v2 <<=3D 64 - shr; - } - return tcg_opt_gen_movi(ctx, op, op->args[0], v1 | v2); + if (ctx->type =3D=3D TCG_TYPE_I32) { + z1 =3D (uint32_t)z1 >> shr; + o1 =3D (uint32_t)o1 >> shr; + z2 =3D (uint64_t)((int32_t)z2 << (32 - shr)); + o2 =3D (uint64_t)((int32_t)o2 << (32 - shr)); + } else { + z1 >>=3D shr; + o1 >>=3D shr; + z2 <<=3D 64 - shr; + o2 <<=3D 64 - shr; } - return finish_folding(ctx, op); + + return fold_masks_zo(ctx, op, z1 | z2, o1 | o2); } =20 static bool fold_exts(OptContext *ctx, TCGOp *op) --=20 2.43.0