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Thu, 28 Aug 2025 04:34:44 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 10/32] target/arm: Implement MIN/MAX (register) Date: Thu, 28 Aug 2025 12:34:07 +0100 Message-ID: <20250828113430.3214314-11-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250828113430.3214314-1-peter.maydell@linaro.org> References: <20250828113430.3214314-1-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::333; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x333.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: 1756381207735124100 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Message-id: 20250803014019.416797-4-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/tcg/a64.decode | 5 +++++ target/arm/tcg/translate-a64.c | 22 ++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index c1811b02747..a886b3ba4c7 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -708,6 +708,11 @@ GMI 1 00 11010110 ..... 000101 ..... .....= @rrr =20 PACGA 1 00 11010110 ..... 001100 ..... ..... @rrr =20 +SMAX . 00 11010110 ..... 011000 ..... ..... @rrr_sf +SMIN . 00 11010110 ..... 011010 ..... ..... @rrr_sf +UMAX . 00 11010110 ..... 011001 ..... ..... @rrr_sf +UMIN . 00 11010110 ..... 011011 ..... ..... @rrr_sf + # Data Processing (1-source) =20 @rr . .......... ..... ...... rn:5 rd:5 &rr diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index b70ae5befd2..bb92bdc296a 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -8201,6 +8201,28 @@ static bool trans_PACGA(DisasContext *s, arg_rrr *a) return false; } =20 +static bool gen_rrr(DisasContext *s, arg_rrr_sf *a, ArithTwoOp fn) +{ + TCGv_i64 tcg_rm =3D cpu_reg(s, a->rm); + TCGv_i64 tcg_rn =3D cpu_reg(s, a->rn); + TCGv_i64 tcg_rd =3D cpu_reg(s, a->rd); + + fn(tcg_rd, tcg_rn, tcg_rm); + if (!a->sf) { + tcg_gen_ext32u_i64(tcg_rd, tcg_rd); + } + return true; +} + +TRANS_FEAT(SMAX, aa64_cssc, gen_rrr, a, + a->sf ? tcg_gen_smax_i64 : gen_smax32_i64) +TRANS_FEAT(SMIN, aa64_cssc, gen_rrr, a, + a->sf ? tcg_gen_smin_i64 : gen_smin32_i64) +TRANS_FEAT(UMAX, aa64_cssc, gen_rrr, a, + a->sf ? tcg_gen_umax_i64 : gen_umax32_i64) +TRANS_FEAT(UMIN, aa64_cssc, gen_rrr, a, + a->sf ? tcg_gen_umin_i64 : gen_umin32_i64) + typedef void ArithOneOp(TCGv_i64, TCGv_i64); =20 static bool gen_rr(DisasContext *s, int rd, int rn, ArithOneOp fn) --=20 2.43.0