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Tue, 10 Dec 2024 08:18:01 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v2 05/69] target/arm: Convert SUBP, IRG, GMI to decodetree Date: Tue, 10 Dec 2024 10:16:29 -0600 Message-ID: <20241210161733.1830573-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241210161733.1830573-1-richard.henderson@linaro.org> References: <20241210161733.1830573-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::12b; envelope-from=richard.henderson@linaro.org; helo=mail-lf1-x12b.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: 1733847620586116600 Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 94 +++++++++++++++++++--------------- target/arm/tcg/a64.decode | 7 +++ 2 files changed, 59 insertions(+), 42 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 22594a1149..00e55d42ff 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -7625,6 +7625,55 @@ static bool do_crc32(DisasContext *s, arg_rrr_e *a, = bool crc32c) TRANS_FEAT(CRC32, aa64_crc32, do_crc32, a, false) TRANS_FEAT(CRC32C, aa64_crc32, do_crc32, a, true) =20 +static bool do_subp(DisasContext *s, arg_rrr *a, bool setflag) +{ + TCGv_i64 tcg_n =3D read_cpu_reg_sp(s, a->rn, true); + TCGv_i64 tcg_m =3D read_cpu_reg_sp(s, a->rm, true); + TCGv_i64 tcg_d =3D cpu_reg(s, a->rd); + + tcg_gen_sextract_i64(tcg_n, tcg_n, 0, 56); + tcg_gen_sextract_i64(tcg_m, tcg_m, 0, 56); + + if (setflag) { + gen_sub_CC(true, tcg_d, tcg_n, tcg_m); + } else { + tcg_gen_sub_i64(tcg_d, tcg_n, tcg_m); + } + return true; +} + +TRANS_FEAT(SUBP, aa64_mte_insn_reg, do_subp, a, false) +TRANS_FEAT(SUBPS, aa64_mte_insn_reg, do_subp, a, true) + +static bool trans_IRG(DisasContext *s, arg_rrr *a) +{ + if (dc_isar_feature(aa64_mte_insn_reg, s)) { + TCGv_i64 tcg_rd =3D cpu_reg_sp(s, a->rd); + TCGv_i64 tcg_rn =3D cpu_reg_sp(s, a->rn); + + if (s->ata[0]) { + gen_helper_irg(tcg_rd, tcg_env, tcg_rn, cpu_reg(s, a->rm)); + } else { + gen_address_with_allocation_tag0(tcg_rd, tcg_rn); + } + return true; + } + return false; +} + +static bool trans_GMI(DisasContext *s, arg_rrr *a) +{ + if (dc_isar_feature(aa64_mte_insn_reg, s)) { + TCGv_i64 t =3D tcg_temp_new_i64(); + + tcg_gen_extract_i64(t, cpu_reg_sp(s, a->rn), 56, 4); + tcg_gen_shl_i64(t, tcg_constant_i64(1), t); + tcg_gen_or_i64(cpu_reg(s, a->rd), cpu_reg(s, a->rm), t); + return true; + } + return false; +} + /* Logical (shifted register) * 31 30 29 28 24 23 22 21 20 16 15 10 9 5 4 0 * +----+-----+-----------+-------+---+------+--------+------+------+ @@ -8528,48 +8577,6 @@ static void disas_data_proc_2src(DisasContext *s, ui= nt32_t insn) } =20 switch (opcode) { - case 0: /* SUBP(S) */ - if (sf =3D=3D 0 || !dc_isar_feature(aa64_mte_insn_reg, s)) { - goto do_unallocated; - } else { - TCGv_i64 tcg_n, tcg_m, tcg_d; - - tcg_n =3D read_cpu_reg_sp(s, rn, true); - tcg_m =3D read_cpu_reg_sp(s, rm, true); - tcg_gen_sextract_i64(tcg_n, tcg_n, 0, 56); - tcg_gen_sextract_i64(tcg_m, tcg_m, 0, 56); - tcg_d =3D cpu_reg(s, rd); - - if (setflag) { - gen_sub_CC(true, tcg_d, tcg_n, tcg_m); - } else { - tcg_gen_sub_i64(tcg_d, tcg_n, tcg_m); - } - } - break; - case 4: /* IRG */ - if (sf =3D=3D 0 || !dc_isar_feature(aa64_mte_insn_reg, s)) { - goto do_unallocated; - } - if (s->ata[0]) { - gen_helper_irg(cpu_reg_sp(s, rd), tcg_env, - cpu_reg_sp(s, rn), cpu_reg(s, rm)); - } else { - gen_address_with_allocation_tag0(cpu_reg_sp(s, rd), - cpu_reg_sp(s, rn)); - } - break; - case 5: /* GMI */ - if (sf =3D=3D 0 || !dc_isar_feature(aa64_mte_insn_reg, s)) { - goto do_unallocated; - } else { - TCGv_i64 t =3D tcg_temp_new_i64(); - - tcg_gen_extract_i64(t, cpu_reg_sp(s, rn), 56, 4); - tcg_gen_shl_i64(t, tcg_constant_i64(1), t); - tcg_gen_or_i64(cpu_reg(s, rd), cpu_reg(s, rm), t); - } - break; case 12: /* PACGA */ if (sf =3D=3D 0 || !dc_isar_feature(aa64_pauth, s)) { goto do_unallocated; @@ -8579,8 +8586,11 @@ static void disas_data_proc_2src(DisasContext *s, ui= nt32_t insn) break; default: do_unallocated: + case 0: /* SUBP(S) */ case 2: /* UDIV */ case 3: /* SDIV */ + case 4: /* IRG */ + case 5: /* GMI */ case 8: /* LSLV */ case 9: /* LSRV */ case 10: /* ASRV */ diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index 1664f4793c..f0a5ffb1cd 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -26,6 +26,7 @@ %hlm 11:1 20:2 =20 &r rn +&rrr rd rn rm &ri rd imm &rri_sf rd rn imm sf &rrr_sf rd rn rm sf @@ -656,6 +657,7 @@ CPYE 00 011 1 01100 ..... .... 01 ..... ....= . @cpy =20 # Data Processing (2-source) =20 +@rrr . .......... rm:5 ...... rn:5 rd:5 &rrr @rrr_sf sf:1 .......... rm:5 ...... rn:5 rd:5 &rrr_sf =20 UDIV . 00 11010110 ..... 00001 0 ..... ..... @rrr_sf @@ -675,6 +677,11 @@ CRC32C 0 00 11010110 ..... 0101 01 ..... ....= . @rrr_h CRC32C 0 00 11010110 ..... 0101 10 ..... ..... @rrr_s CRC32C 1 00 11010110 ..... 0101 11 ..... ..... @rrr_d =20 +SUBP 1 00 11010110 ..... 000000 ..... ..... @rrr +SUBPS 1 01 11010110 ..... 000000 ..... ..... @rrr +IRG 1 00 11010110 ..... 000100 ..... ..... @rrr +GMI 1 00 11010110 ..... 000101 ..... ..... @rrr + # Data Processing (1-source) # Logical (shifted reg) # Add/subtract (shifted reg) --=20 2.43.0