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Fri, 04 Jul 2025 09:26:38 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 101/119] target/arm: Implement EXTQ for SME2p1/SVE2p1 Date: Fri, 4 Jul 2025 17:24:41 +0100 Message-ID: <20250704162501.249138-102-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250704162501.249138-1-peter.maydell@linaro.org> References: <20250704162501.249138-1-peter.maydell@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::336; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x336.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: 1751647182146116600 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20250704142112.1018902-90-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/tcg/sve.decode | 2 ++ target/arm/tcg/translate-sve.c | 49 ++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+) diff --git a/target/arm/tcg/sve.decode b/target/arm/tcg/sve.decode index 2650e00f80b..af4fb966bf9 100644 --- a/target/arm/tcg/sve.decode +++ b/target/arm/tcg/sve.decode @@ -583,6 +583,8 @@ DUPQ 00000101 001 imm:3 10 001001 rn:5 rd:= 5 &rri_esz esz=3D1 DUPQ 00000101 001 imm:2 100 001001 rn:5 rd:5 &rri_esz e= sz=3D2 DUPQ 00000101 001 imm:1 1000 001001 rn:5 rd:5 &rri_esz e= sz=3D3 =20 +EXTQ 00000101 0110 imm:4 001001 rn:5 rd:5 &rri + # SVE insert SIMD&FP scalar register INSR_f 00000101 .. 1 10100 001110 ..... ..... @rdn_rm =20 diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index e33b2eb2a4e..a918da31fe1 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -2202,6 +2202,55 @@ static bool do_EXT(DisasContext *s, int rd, int rn, = int rm, int imm) TRANS_FEAT(EXT, aa64_sve, do_EXT, a->rd, a->rn, a->rm, a->imm) TRANS_FEAT(EXT_sve2, aa64_sve2, do_EXT, a->rd, a->rn, (a->rn + 1) % 32, a-= >imm) =20 +static bool trans_EXTQ(DisasContext *s, arg_EXTQ *a) +{ + unsigned vl, dofs, sofs0, sofs1, sofs2, imm; + + if (!dc_isar_feature(aa64_sme2p1_or_sve2p1, s)) { + return false; + } + if (!sve_access_check(s)) { + return true; + } + + imm =3D a->imm; + if (imm =3D=3D 0) { + /* So far we never optimize Zdn with MOVPRFX, so zd =3D zn is a no= p. */ + return true; + } + + vl =3D vec_full_reg_size(s); + dofs =3D vec_full_reg_offset(s, a->rd); + sofs2 =3D vec_full_reg_offset(s, a->rn); + + if (imm & 8) { + sofs0 =3D dofs + 8; + sofs1 =3D sofs2; + sofs2 +=3D 8; + } else { + sofs0 =3D dofs; + sofs1 =3D dofs + 8; + } + imm =3D (imm & 7) << 3; + + for (unsigned i =3D 0; i < vl; i +=3D 16) { + TCGv_i64 s0 =3D tcg_temp_new_i64(); + TCGv_i64 s1 =3D tcg_temp_new_i64(); + TCGv_i64 s2 =3D tcg_temp_new_i64(); + + tcg_gen_ld_i64(s0, tcg_env, sofs0 + i); + tcg_gen_ld_i64(s1, tcg_env, sofs1 + i); + tcg_gen_ld_i64(s2, tcg_env, sofs2 + i); + + tcg_gen_extract2_i64(s0, s0, s1, imm); + tcg_gen_extract2_i64(s1, s1, s2, imm); + + tcg_gen_st_i64(s0, tcg_env, dofs + i); + tcg_gen_st_i64(s1, tcg_env, dofs + i + 8); + } + return true; +} + /* *** SVE Permute - Unpredicated Group */ --=20 2.43.0