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Mon, 05 May 2025 13:28:05 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 15/20] tcg/optimize: Build and use z_bits and o_bits in fold_extract2 Date: Mon, 5 May 2025 13:27:46 -0700 Message-ID: <20250505202751.3510517-16-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250505202751.3510517-1-richard.henderson@linaro.org> References: <20250505202751.3510517-1-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=2607:f8b0:4864:20::432; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x432.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: 1746477102950019000 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- tcg/optimize.c | 40 ++++++++++++++++++++++++++++------------ 1 file changed, 28 insertions(+), 12 deletions(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index c5243392af..424fd57922 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1986,21 +1986,37 @@ 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 v1 =3D ti_const_val(t1); + uint64_t v2 =3D ti_const_val(t2); + 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; - } + if (ctx->type =3D=3D TCG_TYPE_I32) { + v1 =3D (uint32_t)v1 >> shr; + z1 =3D (uint32_t)z1 >> shr; + o1 =3D (uint32_t)o1 >> shr; + v2 =3D (uint64_t)((int32_t)v2 << (32 - shr)); + z2 =3D (uint64_t)((int32_t)z2 << (32 - shr)); + o2 =3D (uint64_t)((int32_t)o2 << (32 - shr)); + } else { + v1 >>=3D shr; + z1 >>=3D shr; + o1 >>=3D shr; + v2 <<=3D 64 - shr; + z2 <<=3D 64 - shr; + o2 <<=3D 64 - shr; + } + + if (ti_is_const(t1) && ti_is_const(t2)) { return tcg_opt_gen_movi(ctx, op, op->args[0], v1 | v2); } - 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