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Fri, 12 Feb 2021 23:18:44 +0800 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07436379|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_system_inform|0.633645-0.00734053-0.359015; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047188; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=6; RT=6; SR=0; TI=SMTPD_---.JYGvwP2_1613143124; From: LIU Zhiwei To: qemu-devel@nongnu.org Subject: [PATCH 07/38] target/riscv: SIMD 8-bit Shift Instructions Date: Fri, 12 Feb 2021 23:02:25 +0800 Message-Id: <20210212150256.885-8-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210212150256.885-1-zhiwei_liu@c-sky.com> References: <20210212150256.885-1-zhiwei_liu@c-sky.com> 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: none client-ip=121.197.200.217; envelope-from=zhiwei_liu@c-sky.com; helo=smtp2200-217.mail.aliyun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: richard.henderson@linaro.org, LIU Zhiwei , qemu-riscv@nongnu.org, palmer@dabbelt.com, alistair23@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: LIU Zhiwei Acked-by: Alistair Francis Reviewed-by: Palmer Dabbelt --- target/riscv/helper.h | 9 +++ target/riscv/insn32.decode | 17 ++++ target/riscv/insn_trans/trans_rvp.c.inc | 16 ++++ target/riscv/packed_helper.c | 102 ++++++++++++++++++++++++ 4 files changed, 144 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 20bf400ac2..0ecd4d53f9 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1193,3 +1193,12 @@ DEF_HELPER_3(sll16, tl, env, tl, tl) DEF_HELPER_3(ksll16, tl, env, tl, tl) DEF_HELPER_3(kslra16, tl, env, tl, tl) DEF_HELPER_3(kslra16_u, tl, env, tl, tl) + +DEF_HELPER_3(sra8, tl, env, tl, tl) +DEF_HELPER_3(sra8_u, tl, env, tl, tl) +DEF_HELPER_3(srl8, tl, env, tl, tl) +DEF_HELPER_3(srl8_u, tl, env, tl, tl) +DEF_HELPER_3(sll8, tl, env, tl, tl) +DEF_HELPER_3(ksll8, tl, env, tl, tl) +DEF_HELPER_3(kslra8, tl, env, tl, tl) +DEF_HELPER_3(kslra8_u, tl, env, tl, tl) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 6f053bfeb7..cc782fcde5 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -24,6 +24,7 @@ =20 %sh10 20:10 %sh4 20:4 +%sh3 20:3 %csr 20:12 %rm 12:3 %nf 29:3 !function=3Dex_plus_1 @@ -61,6 +62,7 @@ =20 @sh ...... ...... ..... ... ..... ....... &shift shamt=3D%sh10 = %rs1 %rd @sh4 ...... ...... ..... ... ..... ....... &shift shamt=3D%sh4 = %rs1 %rd +@sh3 ...... ...... ..... ... ..... ....... &shift shamt=3D%sh3 = %rs1 %rd @csr ............ ..... ... ..... ....... %csr %r= s1 %rd =20 @atom_ld ..... aq:1 rl:1 ..... ........ ..... ....... &atomic rs2=3D0 = %rs1 %rd @@ -652,3 +654,18 @@ ksll16 0110010 ..... ..... 000 ..... 1111111 @r kslli16 0111010 1.... ..... 000 ..... 1111111 @sh4 kslra16 0101011 ..... ..... 000 ..... 1111111 @r kslra16_u 0110011 ..... ..... 000 ..... 1111111 @r + +sra8 0101100 ..... ..... 000 ..... 1111111 @r +sra8_u 0110100 ..... ..... 000 ..... 1111111 @r +srai8 0111100 00... ..... 000 ..... 1111111 @sh3 +srai8_u 0111100 01... ..... 000 ..... 1111111 @sh3 +srl8 0101101 ..... ..... 000 ..... 1111111 @r +srl8_u 0110101 ..... ..... 000 ..... 1111111 @r +srli8 0111101 00... ..... 000 ..... 1111111 @sh3 +srli8_u 0111101 01... ..... 000 ..... 1111111 @sh3 +sll8 0101110 ..... ..... 000 ..... 1111111 @r +slli8 0111110 00... ..... 000 ..... 1111111 @sh3 +ksll8 0110110 ..... ..... 000 ..... 1111111 @r +kslli8 0111110 01... ..... 000 ..... 1111111 @sh3 +kslra8 0101111 ..... ..... 000 ..... 1111111 @r +kslra8_u 0110111 ..... ..... 000 ..... 1111111 @r diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_tr= ans/trans_rvp.c.inc index 848edab7e5..12a64849eb 100644 --- a/target/riscv/insn_trans/trans_rvp.c.inc +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -353,3 +353,19 @@ GEN_RVP_SHIFTI(slli16, sll16, tcg_gen_vec_shl16i_i64); GEN_RVP_SHIFTI(srai16_u, sra16_u, NULL); GEN_RVP_SHIFTI(srli16_u, srl16_u, NULL); GEN_RVP_SHIFTI(kslli16, ksll16, NULL); + +/* SIMD 8-bit Shift Instructions */ +GEN_RVP_SHIFT(sra8, tcg_gen_gvec_sars, 0); +GEN_RVP_SHIFT(srl8, tcg_gen_gvec_shrs, 0); +GEN_RVP_SHIFT(sll8, tcg_gen_gvec_shls, 0); +GEN_RVP_R_OOL(sra8_u); +GEN_RVP_R_OOL(srl8_u); +GEN_RVP_R_OOL(ksll8); +GEN_RVP_R_OOL(kslra8); +GEN_RVP_R_OOL(kslra8_u); +GEN_RVP_SHIFTI(srai8, sra8, tcg_gen_vec_sar8i_i64); +GEN_RVP_SHIFTI(srli8, srl8, tcg_gen_vec_shr8i_i64); +GEN_RVP_SHIFTI(slli8, sll8, tcg_gen_vec_shl8i_i64); +GEN_RVP_SHIFTI(srai8_u, sra8_u, NULL); +GEN_RVP_SHIFTI(srli8_u, srl8_u, NULL); +GEN_RVP_SHIFTI(kslli8, ksll8, NULL); diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c index 7e31c2fe46..ab9ebc472b 100644 --- a/target/riscv/packed_helper.c +++ b/target/riscv/packed_helper.c @@ -529,3 +529,105 @@ static inline void do_kslra16_u(CPURISCVState *env, v= oid *vd, void *va, } =20 RVPR(kslra16_u, 1, 2); + +/* SIMD 8-bit Shift Instructions */ +static inline void do_sra8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d =3D vd, *a =3D va; + uint8_t shift =3D *(uint8_t *)vb & 0x7; + d[i] =3D a[i] >> shift; +} + +RVPR(sra8, 1, 1); + +static inline void do_srl8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint8_t *d =3D vd, *a =3D va; + uint8_t shift =3D *(uint8_t *)vb & 0x7; + d[i] =3D a[i] >> shift; +} + +RVPR(srl8, 1, 1); + +static inline void do_sll8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint8_t *d =3D vd, *a =3D va; + uint8_t shift =3D *(uint8_t *)vb & 0x7; + d[i] =3D a[i] << shift; +} + +RVPR(sll8, 1, 1); + +static inline void do_sra8_u(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d =3D vd, *a =3D va; + uint8_t shift =3D *(uint8_t *)vb & 0x7; + d[i] =3D vssra8(env, 0, a[i], shift); +} + +RVPR(sra8_u, 1, 1); + +static inline void do_srl8_u(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + uint8_t *d =3D vd, *a =3D va; + uint8_t shift =3D *(uint8_t *)vb & 0x7; + d[i] =3D vssrl8(env, 0, a[i], shift); +} + +RVPR(srl8_u, 1, 1); + +static inline void do_ksll8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d =3D vd, *a =3D va, result; + uint8_t shift =3D *(uint8_t *)vb & 0x7; + + result =3D a[i] << shift; + if (shift > (clrsb32(a[i]) - 24)) { + env->vxsat =3D 0x1; + d[i] =3D (a[i] & INT8_MIN) ? INT8_MIN : INT8_MAX; + } else { + d[i] =3D result; + } +} + +RVPR(ksll8, 1, 1); + +static inline void do_kslra8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d =3D vd, *a =3D va; + int32_t shift =3D sextract32((*(uint32_t *)vb), 0, 4); + + if (shift >=3D 0) { + do_ksll8(env, vd, va, vb, i); + } else { + shift =3D -shift; + shift =3D (shift =3D=3D 8) ? 7 : shift; + d[i] =3D a[i] >> shift; + } +} + +RVPR(kslra8, 1, 1); + +static inline void do_kslra8_u(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d =3D vd, *a =3D va; + int32_t shift =3D sextract32((*(uint32_t *)vb), 0, 4); + + if (shift >=3D 0) { + do_ksll8(env, vd, va, vb, i); + } else { + shift =3D -shift; + shift =3D (shift =3D=3D 8) ? 7 : shift; + d[i] =3D vssra8(env, 0, a[i], shift); + } +} + +RVPR(kslra8_u, 1, 1); --=20 2.17.1