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([91.209.212.80]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5402960b0absm26024e87.102.2024.12.10.08.23.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2024 08:23:46 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell Subject: [PATCH v2 45/69] target/arm: Introduce gen_gvec_{s,u}{add,ada}lp Date: Tue, 10 Dec 2024 10:17:09 -0600 Message-ID: <20241210161733.1830573-46-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 Received-SPF: pass client-ip=2a00:1450:4864:20::129; envelope-from=richard.henderson@linaro.org; helo=mail-lf1-x129.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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Pairwise addition with and without accumulation. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/helper.h | 2 - target/arm/tcg/translate.h | 9 ++ target/arm/tcg/gengvec.c | 230 ++++++++++++++++++++++++++++++++ target/arm/tcg/neon_helper.c | 22 --- target/arm/tcg/translate-neon.c | 150 +-------------------- 5 files changed, 243 insertions(+), 170 deletions(-) diff --git a/target/arm/helper.h b/target/arm/helper.h index 57e0ce387b..6369d07d05 100644 --- a/target/arm/helper.h +++ b/target/arm/helper.h @@ -397,8 +397,6 @@ DEF_HELPER_1(neon_widen_s16, i64, i32) DEF_HELPER_2(neon_addl_u16, i64, i64, i64) DEF_HELPER_2(neon_addl_u32, i64, i64, i64) -DEF_HELPER_2(neon_paddl_u16, i64, i64, i64) -DEF_HELPER_2(neon_paddl_u32, i64, i64, i64) DEF_HELPER_FLAGS_1(neon_addlp_s8, TCG_CALL_NO_RWG_SE, i64, i64) DEF_HELPER_FLAGS_1(neon_addlp_s16, TCG_CALL_NO_RWG_SE, i64, i64) DEF_HELPER_2(neon_subl_u16, i64, i64, i64) diff --git a/target/arm/tcg/translate.h b/target/arm/tcg/translate.h index 342ebedafc..edd775d564 100644 --- a/target/arm/tcg/translate.h +++ b/target/arm/tcg/translate.h @@ -593,6 +593,15 @@ void gen_gvec_rev32(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, void gen_gvec_rev64(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, uint32_t opr_sz, uint32_t max_sz); +void gen_gvec_saddlp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz); +void gen_gvec_sadalp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz); +void gen_gvec_uaddlp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz); +void gen_gvec_uadalp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz); + /* * Forward to the isar_feature_* tests given a DisasContext pointer. */ diff --git a/target/arm/tcg/gengvec.c b/target/arm/tcg/gengvec.c index 33c0a94958..2755da8ac7 100644 --- a/target/arm/tcg/gengvec.c +++ b/target/arm/tcg/gengvec.c @@ -2467,3 +2467,233 @@ void gen_gvec_rev64(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, g_assert_not_reached(); } } + +static void gen_saddlp_vec(unsigned vece, TCGv_vec d, TCGv_vec n) +{ + int half = 4 << vece; + TCGv_vec t = tcg_temp_new_vec_matching(d); + + tcg_gen_shli_vec(vece, t, n, half); + tcg_gen_sari_vec(vece, d, n, half); + tcg_gen_sari_vec(vece, t, t, half); + tcg_gen_add_vec(vece, d, d, t); +} + +static void gen_saddlp_s_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_ext32s_i64(t, n); + tcg_gen_sari_i64(d, n, 32); + tcg_gen_add_i64(d, d, t); +} + +void gen_gvec_saddlp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz) +{ + static const TCGOpcode vecop_list[] = { + INDEX_op_sari_vec, INDEX_op_shli_vec, INDEX_op_add_vec, 0 + }; + static const GVecGen2 g[] = { + { .fniv = gen_saddlp_vec, + .fni8 = gen_helper_neon_addlp_s8, + .opt_opc = vecop_list, + .vece = MO_16 }, + { .fniv = gen_saddlp_vec, + .fni8 = gen_helper_neon_addlp_s16, + .opt_opc = vecop_list, + .vece = MO_32 }, + { .fniv = gen_saddlp_vec, + .fni8 = gen_saddlp_s_i64, + .opt_opc = vecop_list, + .vece = MO_64 }, + }; + assert(vece <= MO_32); + tcg_gen_gvec_2(rd_ofs, rn_ofs, opr_sz, max_sz, &g[vece]); +} + +static void gen_sadalp_vec(unsigned vece, TCGv_vec d, TCGv_vec n) +{ + TCGv_vec t = tcg_temp_new_vec_matching(d); + + gen_saddlp_vec(vece, t, n); + tcg_gen_add_vec(vece, d, d, t); +} + +static void gen_sadalp_b_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + gen_helper_neon_addlp_s8(t, n); + tcg_gen_vec_add16_i64(d, d, t); +} + +static void gen_sadalp_h_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + gen_helper_neon_addlp_s16(t, n); + tcg_gen_vec_add32_i64(d, d, t); +} + +static void gen_sadalp_s_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + gen_saddlp_s_i64(t, n); + tcg_gen_add_i64(d, d, t); +} + +void gen_gvec_sadalp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz) +{ + static const TCGOpcode vecop_list[] = { + INDEX_op_sari_vec, INDEX_op_shli_vec, INDEX_op_add_vec, 0 + }; + static const GVecGen2 g[] = { + { .fniv = gen_sadalp_vec, + .fni8 = gen_sadalp_b_i64, + .opt_opc = vecop_list, + .load_dest = true, + .vece = MO_16 }, + { .fniv = gen_sadalp_vec, + .fni8 = gen_sadalp_h_i64, + .opt_opc = vecop_list, + .load_dest = true, + .vece = MO_32 }, + { .fniv = gen_sadalp_vec, + .fni8 = gen_sadalp_s_i64, + .opt_opc = vecop_list, + .load_dest = true, + .vece = MO_64 }, + }; + assert(vece <= MO_32); + tcg_gen_gvec_2(rd_ofs, rn_ofs, opr_sz, max_sz, &g[vece]); +} + +static void gen_uaddlp_vec(unsigned vece, TCGv_vec d, TCGv_vec n) +{ + int half = 4 << vece; + TCGv_vec t = tcg_temp_new_vec_matching(d); + TCGv_vec m = tcg_constant_vec_matching(d, vece, MAKE_64BIT_MASK(0, half)); + + tcg_gen_shri_vec(vece, t, n, half); + tcg_gen_and_vec(vece, d, n, m); + tcg_gen_add_vec(vece, d, d, t); +} + +static void gen_uaddlp_b_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 m = tcg_constant_i64(dup_const(MO_16, 0xff)); + + tcg_gen_shri_i64(t, n, 8); + tcg_gen_and_i64(d, n, m); + tcg_gen_and_i64(t, t, m); + /* No carry between widened unsigned elements. */ + tcg_gen_add_i64(d, d, t); +} + +static void gen_uaddlp_h_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 m = tcg_constant_i64(dup_const(MO_32, 0xffff)); + + tcg_gen_shri_i64(t, n, 16); + tcg_gen_and_i64(d, n, m); + tcg_gen_and_i64(t, t, m); + /* No carry between widened unsigned elements. */ + tcg_gen_add_i64(d, d, t); +} + +static void gen_uaddlp_s_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + tcg_gen_ext32u_i64(t, n); + tcg_gen_shri_i64(d, n, 32); + tcg_gen_add_i64(d, d, t); +} + +void gen_gvec_uaddlp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz) +{ + static const TCGOpcode vecop_list[] = { + INDEX_op_shri_vec, INDEX_op_add_vec, 0 + }; + static const GVecGen2 g[] = { + { .fniv = gen_uaddlp_vec, + .fni8 = gen_uaddlp_b_i64, + .opt_opc = vecop_list, + .vece = MO_16 }, + { .fniv = gen_uaddlp_vec, + .fni8 = gen_uaddlp_h_i64, + .opt_opc = vecop_list, + .vece = MO_32 }, + { .fniv = gen_uaddlp_vec, + .fni8 = gen_uaddlp_s_i64, + .opt_opc = vecop_list, + .vece = MO_64 }, + }; + assert(vece <= MO_32); + tcg_gen_gvec_2(rd_ofs, rn_ofs, opr_sz, max_sz, &g[vece]); +} + +static void gen_uadalp_vec(unsigned vece, TCGv_vec d, TCGv_vec n) +{ + TCGv_vec t = tcg_temp_new_vec_matching(d); + + gen_uaddlp_vec(vece, t, n); + tcg_gen_add_vec(vece, d, d, t); +} + +static void gen_uadalp_b_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + gen_uaddlp_b_i64(t, n); + tcg_gen_vec_add16_i64(d, d, t); +} + +static void gen_uadalp_h_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + gen_uaddlp_h_i64(t, n); + tcg_gen_vec_add32_i64(d, d, t); +} + +static void gen_uadalp_s_i64(TCGv_i64 d, TCGv_i64 n) +{ + TCGv_i64 t = tcg_temp_new_i64(); + + gen_uaddlp_s_i64(t, n); + tcg_gen_add_i64(d, d, t); +} + +void gen_gvec_uadalp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t opr_sz, uint32_t max_sz) +{ + static const TCGOpcode vecop_list[] = { + INDEX_op_shri_vec, INDEX_op_add_vec, 0 + }; + static const GVecGen2 g[] = { + { .fniv = gen_uadalp_vec, + .fni8 = gen_uadalp_b_i64, + .load_dest = true, + .opt_opc = vecop_list, + .vece = MO_16 }, + { .fniv = gen_uadalp_vec, + .fni8 = gen_uadalp_h_i64, + .load_dest = true, + .opt_opc = vecop_list, + .vece = MO_32 }, + { .fniv = gen_uadalp_vec, + .fni8 = gen_uadalp_s_i64, + .load_dest = true, + .opt_opc = vecop_list, + .vece = MO_64 }, + }; + assert(vece <= MO_32); + tcg_gen_gvec_2(rd_ofs, rn_ofs, opr_sz, max_sz, &g[vece]); +} diff --git a/target/arm/tcg/neon_helper.c b/target/arm/tcg/neon_helper.c index b92ddd4914..1a22857b5e 100644 --- a/target/arm/tcg/neon_helper.c +++ b/target/arm/tcg/neon_helper.c @@ -844,28 +844,6 @@ uint64_t HELPER(neon_addl_u32)(uint64_t a, uint64_t b) return (a + b) ^ mask; } -uint64_t HELPER(neon_paddl_u16)(uint64_t a, uint64_t b) -{ - uint64_t tmp; - uint64_t tmp2; - - tmp = a & 0x0000ffff0000ffffull; - tmp += (a >> 16) & 0x0000ffff0000ffffull; - tmp2 = b & 0xffff0000ffff0000ull; - tmp2 += (b << 16) & 0xffff0000ffff0000ull; - return ( tmp & 0xffff) - | ((tmp >> 16) & 0xffff0000ull) - | ((tmp2 << 16) & 0xffff00000000ull) - | ( tmp2 & 0xffff000000000000ull); -} - -uint64_t HELPER(neon_paddl_u32)(uint64_t a, uint64_t b) -{ - uint32_t low = a + (a >> 32); - uint32_t high = b + (b >> 32); - return low + ((uint64_t)high << 32); -} - /* Pairwise long add: add pairs of adjacent elements into * double-width elements in the result (eg _s8 is an 8x8->16 op) */ diff --git a/target/arm/tcg/translate-neon.c b/target/arm/tcg/translate-neon.c index ca6f5578b4..19a18018f1 100644 --- a/target/arm/tcg/translate-neon.c +++ b/target/arm/tcg/translate-neon.c @@ -2565,152 +2565,6 @@ static bool trans_VDUP_scalar(DisasContext *s, arg_VDUP_scalar *a) return true; } -static bool do_2misc_pairwise(DisasContext *s, arg_2misc *a, - NeonGenWidenFn *widenfn, - NeonGenTwo64OpFn *opfn, - NeonGenTwo64OpFn *accfn) -{ - /* - * Pairwise long operations: widen both halves of the pair, - * combine the pairs with the opfn, and then possibly accumulate - * into the destination with the accfn. - */ - int pass; - - if (!arm_dc_feature(s, ARM_FEATURE_NEON)) { - return false; - } - - /* UNDEF accesses to D16-D31 if they don't exist. */ - if (!dc_isar_feature(aa32_simd_r32, s) && - ((a->vd | a->vm) & 0x10)) { - return false; - } - - if ((a->vd | a->vm) & a->q) { - return false; - } - - if (!widenfn) { - return false; - } - - if (!vfp_access_check(s)) { - return true; - } - - for (pass = 0; pass < a->q + 1; pass++) { - TCGv_i32 tmp; - TCGv_i64 rm0_64, rm1_64, rd_64; - - rm0_64 = tcg_temp_new_i64(); - rm1_64 = tcg_temp_new_i64(); - rd_64 = tcg_temp_new_i64(); - - tmp = tcg_temp_new_i32(); - read_neon_element32(tmp, a->vm, pass * 2, MO_32); - widenfn(rm0_64, tmp); - read_neon_element32(tmp, a->vm, pass * 2 + 1, MO_32); - widenfn(rm1_64, tmp); - - opfn(rd_64, rm0_64, rm1_64); - - if (accfn) { - TCGv_i64 tmp64 = tcg_temp_new_i64(); - read_neon_element64(tmp64, a->vd, pass, MO_64); - accfn(rd_64, tmp64, rd_64); - } - write_neon_element64(rd_64, a->vd, pass, MO_64); - } - return true; -} - -static bool trans_VPADDL_S(DisasContext *s, arg_2misc *a) -{ - static NeonGenWidenFn * const widenfn[] = { - gen_helper_neon_widen_s8, - gen_helper_neon_widen_s16, - tcg_gen_ext_i32_i64, - NULL, - }; - static NeonGenTwo64OpFn * const opfn[] = { - gen_helper_neon_paddl_u16, - gen_helper_neon_paddl_u32, - tcg_gen_add_i64, - NULL, - }; - - return do_2misc_pairwise(s, a, widenfn[a->size], opfn[a->size], NULL); -} - -static bool trans_VPADDL_U(DisasContext *s, arg_2misc *a) -{ - static NeonGenWidenFn * const widenfn[] = { - gen_helper_neon_widen_u8, - gen_helper_neon_widen_u16, - tcg_gen_extu_i32_i64, - NULL, - }; - static NeonGenTwo64OpFn * const opfn[] = { - gen_helper_neon_paddl_u16, - gen_helper_neon_paddl_u32, - tcg_gen_add_i64, - NULL, - }; - - return do_2misc_pairwise(s, a, widenfn[a->size], opfn[a->size], NULL); -} - -static bool trans_VPADAL_S(DisasContext *s, arg_2misc *a) -{ - static NeonGenWidenFn * const widenfn[] = { - gen_helper_neon_widen_s8, - gen_helper_neon_widen_s16, - tcg_gen_ext_i32_i64, - NULL, - }; - static NeonGenTwo64OpFn * const opfn[] = { - gen_helper_neon_paddl_u16, - gen_helper_neon_paddl_u32, - tcg_gen_add_i64, - NULL, - }; - static NeonGenTwo64OpFn * const accfn[] = { - gen_helper_neon_addl_u16, - gen_helper_neon_addl_u32, - tcg_gen_add_i64, - NULL, - }; - - return do_2misc_pairwise(s, a, widenfn[a->size], opfn[a->size], - accfn[a->size]); -} - -static bool trans_VPADAL_U(DisasContext *s, arg_2misc *a) -{ - static NeonGenWidenFn * const widenfn[] = { - gen_helper_neon_widen_u8, - gen_helper_neon_widen_u16, - tcg_gen_extu_i32_i64, - NULL, - }; - static NeonGenTwo64OpFn * const opfn[] = { - gen_helper_neon_paddl_u16, - gen_helper_neon_paddl_u32, - tcg_gen_add_i64, - NULL, - }; - static NeonGenTwo64OpFn * const accfn[] = { - gen_helper_neon_addl_u16, - gen_helper_neon_addl_u32, - tcg_gen_add_i64, - NULL, - }; - - return do_2misc_pairwise(s, a, widenfn[a->size], opfn[a->size], - accfn[a->size]); -} - typedef void ZipFn(TCGv_ptr, TCGv_ptr); static bool do_zip_uzp(DisasContext *s, arg_2misc *a, @@ -3071,6 +2925,10 @@ DO_2MISC_VEC(VCLT0, gen_gvec_clt0) DO_2MISC_VEC(VCLS, gen_gvec_cls) DO_2MISC_VEC(VCLZ, gen_gvec_clz) DO_2MISC_VEC(VREV64, gen_gvec_rev64) +DO_2MISC_VEC(VPADDL_S, gen_gvec_saddlp) +DO_2MISC_VEC(VPADDL_U, gen_gvec_uaddlp) +DO_2MISC_VEC(VPADAL_S, gen_gvec_sadalp) +DO_2MISC_VEC(VPADAL_U, gen_gvec_uadalp) static bool trans_VMVN(DisasContext *s, arg_2misc *a) {