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[174.21.72.5]) by smtp.gmail.com with ESMTPSA id pv7-20020a17090b3c8700b002a5f44353d2sm8958232pjb.7.2024.05.05.18.04.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 May 2024 18:04:25 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH 24/57] target/arm: Convert ADDP to decodetree Date: Sun, 5 May 2024 18:03:30 -0700 Message-Id: <20240506010403.6204-25-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240506010403.6204-1-richard.henderson@linaro.org> References: <20240506010403.6204-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1034; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1034.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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/helper.h | 5 ++ target/arm/tcg/translate.h | 3 + target/arm/tcg/a64.decode | 6 ++ target/arm/tcg/gengvec.c | 12 ++++ target/arm/tcg/translate-a64.c | 128 ++++++--------------------------- target/arm/tcg/vec_helper.c | 30 ++++++++ 6 files changed, 77 insertions(+), 107 deletions(-) diff --git a/target/arm/helper.h b/target/arm/helper.h index 065460ea80..d3579a101f 100644 --- a/target/arm/helper.h +++ b/target/arm/helper.h @@ -1061,6 +1061,11 @@ DEF_HELPER_FLAGS_5(gvec_fminnump_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i DEF_HELPER_FLAGS_5(gvec_fminnump_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_5(gvec_fminnump_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_addp_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_addp_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_addp_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_4(gvec_addp_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) + #ifdef TARGET_AARCH64 #include "tcg/helper-a64.h" #include "tcg/helper-sve.h" diff --git a/target/arm/tcg/translate.h b/target/arm/tcg/translate.h index b05a9eb668..04771f483b 100644 --- a/target/arm/tcg/translate.h +++ b/target/arm/tcg/translate.h @@ -514,6 +514,9 @@ void gen_gvec_saba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, void gen_gvec_uaba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz); +void gen_gvec_addp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t rm_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/a64.decode b/target/arm/tcg/a64.decode index e6bd84c433..ed3603b92f 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -38,6 +38,7 @@ &qrrrr_e q rd rn rm ra esz @rr_h ........ ... ..... ...... rn:5 rd:5 &rr_e esz=1 +@rr_d ........ ... ..... ...... rn:5 rd:5 &rr_e esz=3 @rr_sd ........ ... ..... ...... rn:5 rd:5 &rr_e esz=%esz_sd @rrr_h ........ ... rm:5 ...... rn:5 rd:5 &rrr_e esz=1 @@ -56,6 +57,7 @@ @qrrr_h . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=1 @qrrr_sd . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=%esz_sd +@qrrr_e . q:1 ...... esz:2 . rm:5 ...... rn:5 rd:5 &qrrr_e @qrrx_h . q:1 .. .... .. .. rm:4 .... . . rn:5 rd:5 \ &qrrx_e esz=1 idx=%hlm @@ -758,6 +760,8 @@ FMAXNMP_s 0111 1110 0.11 0000 1100 10 ..... ..... @rr_sd FMINNMP_s 0101 1110 1011 0000 1100 10 ..... ..... @rr_h FMINNMP_s 0111 1110 1.11 0000 1100 10 ..... ..... @rr_sd +ADDP_s 0101 1110 1111 0001 1011 10 ..... ..... @rr_d + ### Advanced SIMD three same FADD_v 0.00 1110 010 ..... 00010 1 ..... ..... @qrrr_h @@ -832,6 +836,8 @@ FMAXNMP_v 0.10 1110 0.1 ..... 11000 1 ..... ..... @qrrr_sd FMINNMP_v 0.10 1110 110 ..... 00000 1 ..... ..... @qrrr_h FMINNMP_v 0.10 1110 1.1 ..... 11000 1 ..... ..... @qrrr_sd +ADDP_v 0.00 1110 ..1 ..... 10111 1 ..... ..... @qrrr_e + ### Advanced SIMD scalar x indexed element FMUL_si 0101 1111 00 .. .... 1001 . 0 ..... ..... @rrx_h diff --git a/target/arm/tcg/gengvec.c b/target/arm/tcg/gengvec.c index 7a1856253f..f010dd5a0e 100644 --- a/target/arm/tcg/gengvec.c +++ b/target/arm/tcg/gengvec.c @@ -1610,3 +1610,15 @@ void gen_gvec_uaba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, }; tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]); } + +void gen_gvec_addp(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs, + uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz) +{ + static gen_helper_gvec_3 * const fns[4] = { + gen_helper_gvec_addp_b, + gen_helper_gvec_addp_h, + gen_helper_gvec_addp_s, + gen_helper_gvec_addp_d, + }; + tcg_gen_gvec_3_ool(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, 0, fns[vece]); +} diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index e7d562627d..2ba211f4a5 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -5246,6 +5246,8 @@ static gen_helper_gvec_3_ptr * const f_vector_fminnmp[3] = { }; TRANS(FMINNMP_v, do_fp3_vector, a, f_vector_fminnmp) +TRANS(ADDP_v, do_gvec_fn3, a, gen_gvec_addp) + /* * Advanced SIMD scalar/vector x indexed element */ @@ -5486,6 +5488,20 @@ TRANS(FMINP_s, do_fp3_scalar_pair, a, &f_scalar_fmin) TRANS(FMAXNMP_s, do_fp3_scalar_pair, a, &f_scalar_fmaxnm) TRANS(FMINNMP_s, do_fp3_scalar_pair, a, &f_scalar_fminnm) +static bool trans_ADDP_s(DisasContext *s, arg_rr_e *a) +{ + if (fp_access_check(s)) { + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + + read_vec_element(s, t0, a->rn, 0, MO_64); + read_vec_element(s, t1, a->rn, 1, MO_64); + tcg_gen_add_i64(t0, t0, t1); + write_fp_dreg(s, a->rd, t0); + } + return true; +} + /* Shift a TCGv src by TCGv shift_amount, put result in dst. * Note that it is the caller's responsibility to ensure that the * shift amount is in range (ie 0..31 or 0..63) and provide the ARM @@ -8409,73 +8425,6 @@ static void disas_simd_mod_imm(DisasContext *s, uint32_t insn) } } -/* AdvSIMD scalar pairwise - * 31 30 29 28 24 23 22 21 17 16 12 11 10 9 5 4 0 - * +-----+---+-----------+------+-----------+--------+-----+------+------+ - * | 0 1 | U | 1 1 1 1 0 | size | 1 1 0 0 0 | opcode | 1 0 | Rn | Rd | - * +-----+---+-----------+------+-----------+--------+-----+------+------+ - */ -static void disas_simd_scalar_pairwise(DisasContext *s, uint32_t insn) -{ - int u = extract32(insn, 29, 1); - int size = extract32(insn, 22, 2); - int opcode = extract32(insn, 12, 5); - int rn = extract32(insn, 5, 5); - int rd = extract32(insn, 0, 5); - - /* For some ops (the FP ones), size[1] is part of the encoding. - * For ADDP strictly it is not but size[1] is always 1 for valid - * encodings. - */ - opcode |= (extract32(size, 1, 1) << 5); - - switch (opcode) { - case 0x3b: /* ADDP */ - if (u || size != 3) { - unallocated_encoding(s); - return; - } - if (!fp_access_check(s)) { - return; - } - break; - default: - case 0xc: /* FMAXNMP */ - case 0xd: /* FADDP */ - case 0xf: /* FMAXP */ - case 0x2c: /* FMINNMP */ - case 0x2f: /* FMINP */ - unallocated_encoding(s); - return; - } - - if (size == MO_64) { - TCGv_i64 tcg_op1 = tcg_temp_new_i64(); - TCGv_i64 tcg_op2 = tcg_temp_new_i64(); - TCGv_i64 tcg_res = tcg_temp_new_i64(); - - read_vec_element(s, tcg_op1, rn, 0, MO_64); - read_vec_element(s, tcg_op2, rn, 1, MO_64); - - switch (opcode) { - case 0x3b: /* ADDP */ - tcg_gen_add_i64(tcg_res, tcg_op1, tcg_op2); - break; - default: - case 0xc: /* FMAXNMP */ - case 0xd: /* FADDP */ - case 0xf: /* FMAXP */ - case 0x2c: /* FMINNMP */ - case 0x2f: /* FMINP */ - g_assert_not_reached(); - } - - write_fp_dreg(s, rd, tcg_res); - } else { - g_assert_not_reached(); - } -} - /* * Common SSHR[RA]/USHR[RA] - Shift right (optional rounding/accumulate) * @@ -10959,34 +10908,7 @@ static void handle_simd_3same_pair(DisasContext *s, int is_q, int u, int opcode, * adjacent elements being operated on to produce an element in the result. */ if (size == 3) { - TCGv_i64 tcg_res[2]; - - for (pass = 0; pass < 2; pass++) { - TCGv_i64 tcg_op1 = tcg_temp_new_i64(); - TCGv_i64 tcg_op2 = tcg_temp_new_i64(); - int passreg = (pass == 0) ? rn : rm; - - read_vec_element(s, tcg_op1, passreg, 0, MO_64); - read_vec_element(s, tcg_op2, passreg, 1, MO_64); - tcg_res[pass] = tcg_temp_new_i64(); - - switch (opcode) { - case 0x17: /* ADDP */ - tcg_gen_add_i64(tcg_res[pass], tcg_op1, tcg_op2); - break; - default: - case 0x58: /* FMAXNMP */ - case 0x5a: /* FADDP */ - case 0x5e: /* FMAXP */ - case 0x78: /* FMINNMP */ - case 0x7e: /* FMINP */ - g_assert_not_reached(); - } - } - - for (pass = 0; pass < 2; pass++) { - write_vec_element(s, tcg_res[pass], rd, pass, MO_64); - } + g_assert_not_reached(); } else { int maxpass = is_q ? 4 : 2; TCGv_i32 tcg_res[4]; @@ -11003,16 +10925,6 @@ static void handle_simd_3same_pair(DisasContext *s, int is_q, int u, int opcode, tcg_res[pass] = tcg_temp_new_i32(); switch (opcode) { - case 0x17: /* ADDP */ - { - static NeonGenTwoOpFn * const fns[3] = { - gen_helper_neon_padd_u8, - gen_helper_neon_padd_u16, - tcg_gen_add_i32, - }; - genfn = fns[size]; - break; - } case 0x14: /* SMAXP, UMAXP */ { static NeonGenTwoOpFn * const fns[3][2] = { @@ -11034,6 +10946,7 @@ static void handle_simd_3same_pair(DisasContext *s, int is_q, int u, int opcode, break; } default: + case 0x17: /* ADDP */ case 0x58: /* FMAXNMP */ case 0x5a: /* FADDP */ case 0x5e: /* FMAXP */ @@ -11395,7 +11308,6 @@ static void disas_simd_three_reg_same(DisasContext *s, uint32_t insn) case 0x3: /* logic ops */ disas_simd_3same_logic(s, insn); break; - case 0x17: /* ADDP */ case 0x14: /* SMAXP, UMAXP */ case 0x15: /* SMINP, UMINP */ { @@ -11427,6 +11339,9 @@ static void disas_simd_three_reg_same(DisasContext *s, uint32_t insn) default: disas_simd_3same_int(s, insn); break; + case 0x17: /* ADDP */ + unallocated_encoding(s); + break; } } @@ -13189,7 +13104,6 @@ static const AArch64DecodeTable data_proc_simd[] = { { 0x5e008400, 0xdf208400, disas_simd_scalar_three_reg_same_extra }, { 0x5e200000, 0xdf200c00, disas_simd_scalar_three_reg_diff }, { 0x5e200800, 0xdf3e0c00, disas_simd_scalar_two_reg_misc }, - { 0x5e300800, 0xdf3e0c00, disas_simd_scalar_pairwise }, { 0x5f000000, 0xdf000400, disas_simd_indexed }, /* scalar indexed */ { 0x5f000400, 0xdf800400, disas_simd_scalar_shift_imm }, { 0x0e780800, 0x8f7e0c00, disas_simd_two_reg_misc_fp16 }, diff --git a/target/arm/tcg/vec_helper.c b/target/arm/tcg/vec_helper.c index 26a9ca9c14..5069899415 100644 --- a/target/arm/tcg/vec_helper.c +++ b/target/arm/tcg/vec_helper.c @@ -2231,6 +2231,36 @@ DO_3OP_PAIR(gvec_fminnump_h, float16_minnum, float16, H2) DO_3OP_PAIR(gvec_fminnump_s, float32_minnum, float32, H4) DO_3OP_PAIR(gvec_fminnump_d, float64_minnum, float64, ) +#undef DO_3OP_PAIR + +#define DO_3OP_PAIR(NAME, FUNC, TYPE, H) \ +void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \ +{ \ + ARMVectorReg scratch; \ + intptr_t oprsz = simd_oprsz(desc); \ + intptr_t half = oprsz / sizeof(TYPE) / 2; \ + TYPE *d = vd, *n = vn, *m = vm; \ + if (unlikely(d == m)) { \ + m = memcpy(&scratch, m, oprsz); \ + } \ + for (intptr_t i = 0; i < half; ++i) { \ + d[H(i)] = FUNC(n[H(i * 2)], n[H(i * 2 + 1)]); \ + } \ + for (intptr_t i = 0; i < half; ++i) { \ + d[H(i + half)] = FUNC(m[H(i * 2)], m[H(i * 2 + 1)]); \ + } \ + clear_tail(d, oprsz, simd_maxsz(desc)); \ +} + +#define ADD(A, B) (A + B) +DO_3OP_PAIR(gvec_addp_b, ADD, uint8_t, H1) +DO_3OP_PAIR(gvec_addp_h, ADD, uint16_t, H2) +DO_3OP_PAIR(gvec_addp_s, ADD, uint32_t, H4) +DO_3OP_PAIR(gvec_addp_d, ADD, uint64_t, ) +#undef ADD + +#undef DO_3OP_PAIR + #define DO_VCVT_FIXED(NAME, FUNC, TYPE) \ void HELPER(NAME)(void *vd, void *vn, void *stat, uint32_t desc) \ { \