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([91.209.212.80]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5402960b0absm26024e87.102.2024.12.10.08.24.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2024 08:24:28 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell Subject: [PATCH v2 56/69] target/arm: Convert FRINT* (vector) to decodetree Date: Tue, 10 Dec 2024 10:17:20 -0600 Message-ID: <20241210161733.1830573-57-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::232; envelope-from=richard.henderson@linaro.org; helo=mail-lj1-x232.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 Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 176 ++++++++++++--------------------- target/arm/tcg/a64.decode | 26 +++++ 2 files changed, 88 insertions(+), 114 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 287e9338a4..0f924b07dc 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -9209,6 +9209,21 @@ static bool do_fp1_vector(DisasContext *s, arg_qrr_e *a, TRANS(FSQRT_v, do_fp1_vector, a, &f_scalar_fsqrt, -1) +TRANS(FRINTN_v, do_fp1_vector, a, &f_scalar_frint, FPROUNDING_TIEEVEN) +TRANS(FRINTP_v, do_fp1_vector, a, &f_scalar_frint, FPROUNDING_POSINF) +TRANS(FRINTM_v, do_fp1_vector, a, &f_scalar_frint, FPROUNDING_NEGINF) +TRANS(FRINTZ_v, do_fp1_vector, a, &f_scalar_frint, FPROUNDING_ZERO) +TRANS(FRINTA_v, do_fp1_vector, a, &f_scalar_frint, FPROUNDING_TIEAWAY) +TRANS(FRINTI_v, do_fp1_vector, a, &f_scalar_frint, -1) +TRANS(FRINTX_v, do_fp1_vector, a, &f_scalar_frintx, -1) + +TRANS_FEAT(FRINT32Z_v, aa64_frint, do_fp1_vector, a, + &f_scalar_frint32, FPROUNDING_ZERO) +TRANS_FEAT(FRINT32X_v, aa64_frint, do_fp1_vector, a, &f_scalar_frint32, -1) +TRANS_FEAT(FRINT64Z_v, aa64_frint, do_fp1_vector, a, + &f_scalar_frint64, FPROUNDING_ZERO) +TRANS_FEAT(FRINT64X_v, aa64_frint, do_fp1_vector, a, &f_scalar_frint64, -1) + /* Common vector code for handling integer to FP conversion */ static void handle_simd_intfp_conv(DisasContext *s, int rd, int rn, int elements, int is_signed, @@ -9520,25 +9535,6 @@ static void handle_2misc_64(DisasContext *s, int opcode, bool u, case 0x7b: /* FCVTZU */ gen_helper_vfp_touqd(tcg_rd, tcg_rn, tcg_constant_i32(0), tcg_fpstatus); break; - case 0x18: /* FRINTN */ - case 0x19: /* FRINTM */ - case 0x38: /* FRINTP */ - case 0x39: /* FRINTZ */ - case 0x58: /* FRINTA */ - case 0x79: /* FRINTI */ - gen_helper_rintd(tcg_rd, tcg_rn, tcg_fpstatus); - break; - case 0x59: /* FRINTX */ - gen_helper_rintd_exact(tcg_rd, tcg_rn, tcg_fpstatus); - break; - case 0x1e: /* FRINT32Z */ - case 0x5e: /* FRINT32X */ - gen_helper_frint32_d(tcg_rd, tcg_rn, tcg_fpstatus); - break; - case 0x1f: /* FRINT64Z */ - case 0x5f: /* FRINT64X */ - gen_helper_frint64_d(tcg_rd, tcg_rn, tcg_fpstatus); - break; default: case 0x4: /* CLS, CLZ */ case 0x5: /* NOT */ @@ -9550,6 +9546,17 @@ static void handle_2misc_64(DisasContext *s, int opcode, bool u, case 0x2f: /* FABS */ case 0x6f: /* FNEG */ case 0x7f: /* FSQRT */ + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x58: /* FRINTA */ + case 0x79: /* FRINTI */ + case 0x59: /* FRINTX */ + case 0x1e: /* FRINT32Z */ + case 0x5e: /* FRINT32X */ + case 0x1f: /* FRINT64Z */ + case 0x5f: /* FRINT64X */ g_assert_not_reached(); } } @@ -10094,46 +10101,12 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) } handle_2misc_widening(s, opcode, is_q, size, rn, rd); return; - case 0x18: /* FRINTN */ - case 0x19: /* FRINTM */ - case 0x38: /* FRINTP */ - case 0x39: /* FRINTZ */ - rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1); - /* fall through */ - case 0x59: /* FRINTX */ - case 0x79: /* FRINTI */ - need_fpstatus = true; - if (size == 3 && !is_q) { - unallocated_encoding(s); - return; - } - break; - case 0x58: /* FRINTA */ - rmode = FPROUNDING_TIEAWAY; - need_fpstatus = true; - if (size == 3 && !is_q) { - unallocated_encoding(s); - return; - } - break; case 0x7c: /* URSQRTE */ if (size == 3) { unallocated_encoding(s); return; } break; - case 0x1e: /* FRINT32Z */ - case 0x1f: /* FRINT64Z */ - rmode = FPROUNDING_ZERO; - /* fall through */ - case 0x5e: /* FRINT32X */ - case 0x5f: /* FRINT64X */ - need_fpstatus = true; - if ((size == 3 && !is_q) || !dc_isar_feature(aa64_frint, s)) { - unallocated_encoding(s); - return; - } - break; default: case 0x16: /* FCVTN, FCVTN2 */ case 0x36: /* BFCVTN, BFCVTN2 */ @@ -10141,6 +10114,17 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) case 0x2f: /* FABS */ case 0x6f: /* FNEG */ case 0x7f: /* FSQRT */ + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x59: /* FRINTX */ + case 0x79: /* FRINTI */ + case 0x58: /* FRINTA */ + case 0x1e: /* FRINT32Z */ + case 0x1f: /* FRINT64Z */ + case 0x5e: /* FRINT32X */ + case 0x5f: /* FRINT64X */ unallocated_encoding(s); return; } @@ -10229,33 +10213,25 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) gen_helper_vfp_touls(tcg_res, tcg_op, tcg_constant_i32(0), tcg_fpstatus); break; - case 0x18: /* FRINTN */ - case 0x19: /* FRINTM */ - case 0x38: /* FRINTP */ - case 0x39: /* FRINTZ */ - case 0x58: /* FRINTA */ - case 0x79: /* FRINTI */ - gen_helper_rints(tcg_res, tcg_op, tcg_fpstatus); - break; - case 0x59: /* FRINTX */ - gen_helper_rints_exact(tcg_res, tcg_op, tcg_fpstatus); - break; case 0x7c: /* URSQRTE */ gen_helper_rsqrte_u32(tcg_res, tcg_op); break; - case 0x1e: /* FRINT32Z */ - case 0x5e: /* FRINT32X */ - gen_helper_frint32_s(tcg_res, tcg_op, tcg_fpstatus); - break; - case 0x1f: /* FRINT64Z */ - case 0x5f: /* FRINT64X */ - gen_helper_frint64_s(tcg_res, tcg_op, tcg_fpstatus); - break; default: case 0x7: /* SQABS, SQNEG */ case 0x2f: /* FABS */ case 0x6f: /* FNEG */ case 0x7f: /* FSQRT */ + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x58: /* FRINTA */ + case 0x79: /* FRINTI */ + case 0x59: /* FRINTX */ + case 0x1e: /* FRINT32Z */ + case 0x5e: /* FRINT32X */ + case 0x1f: /* FRINT64Z */ + case 0x5f: /* FRINT64X */ g_assert_not_reached(); } } @@ -10289,7 +10265,6 @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn) int rn, rd; bool is_q; bool is_scalar; - bool only_in_vector = false; int pass; TCGv_i32 tcg_rmode = NULL; @@ -10343,31 +10318,6 @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn) case 0x3d: /* FRECPE */ case 0x3f: /* FRECPX */ break; - case 0x18: /* FRINTN */ - only_in_vector = true; - rmode = FPROUNDING_TIEEVEN; - break; - case 0x19: /* FRINTM */ - only_in_vector = true; - rmode = FPROUNDING_NEGINF; - break; - case 0x38: /* FRINTP */ - only_in_vector = true; - rmode = FPROUNDING_POSINF; - break; - case 0x39: /* FRINTZ */ - only_in_vector = true; - rmode = FPROUNDING_ZERO; - break; - case 0x58: /* FRINTA */ - only_in_vector = true; - rmode = FPROUNDING_TIEAWAY; - break; - case 0x59: /* FRINTX */ - case 0x79: /* FRINTI */ - only_in_vector = true; - /* current rounding mode */ - break; case 0x1a: /* FCVTNS */ rmode = FPROUNDING_TIEEVEN; break; @@ -10404,6 +10354,13 @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn) case 0x2f: /* FABS */ case 0x6f: /* FNEG */ case 0x7f: /* FSQRT (vector) */ + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x58: /* FRINTA */ + case 0x59: /* FRINTX */ + case 0x79: /* FRINTI */ unallocated_encoding(s); return; } @@ -10415,11 +10372,6 @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn) unallocated_encoding(s); return; } - /* FRINTxx is only in the vector form */ - if (only_in_vector) { - unallocated_encoding(s); - return; - } } if (!fp_access_check(s)) { @@ -10494,17 +10446,6 @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn) case 0x7b: /* FCVTZU */ gen_helper_advsimd_f16touinth(tcg_res, tcg_op, tcg_fpstatus); break; - case 0x18: /* FRINTN */ - case 0x19: /* FRINTM */ - case 0x38: /* FRINTP */ - case 0x39: /* FRINTZ */ - case 0x58: /* FRINTA */ - case 0x79: /* FRINTI */ - gen_helper_advsimd_rinth(tcg_res, tcg_op, tcg_fpstatus); - break; - case 0x59: /* FRINTX */ - gen_helper_advsimd_rinth_exact(tcg_res, tcg_op, tcg_fpstatus); - break; case 0x7d: /* FRSQRTE */ gen_helper_rsqrte_f16(tcg_res, tcg_op, tcg_fpstatus); break; @@ -10512,6 +10453,13 @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn) case 0x2f: /* FABS */ case 0x6f: /* FNEG */ case 0x7f: /* FSQRT */ + case 0x18: /* FRINTN */ + case 0x19: /* FRINTM */ + case 0x38: /* FRINTP */ + case 0x39: /* FRINTZ */ + case 0x58: /* FRINTA */ + case 0x79: /* FRINTI */ + case 0x59: /* FRINTX */ g_assert_not_reached(); } diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index 1e0eb4a748..5e02144f65 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -1697,3 +1697,29 @@ FNEG_v 0.10 1110 1.1 00000 11111 0 ..... ..... @qrr_sd FSQRT_v 0.10 1110 111 11001 11111 0 ..... ..... @qrr_h FSQRT_v 0.10 1110 1.1 00001 11111 0 ..... ..... @qrr_sd + +FRINTN_v 0.00 1110 011 11001 10001 0 ..... ..... @qrr_h +FRINTN_v 0.00 1110 0.1 00001 10001 0 ..... ..... @qrr_sd + +FRINTM_v 0.00 1110 011 11001 10011 0 ..... ..... @qrr_h +FRINTM_v 0.00 1110 0.1 00001 10011 0 ..... ..... @qrr_sd + +FRINTP_v 0.00 1110 111 11001 10001 0 ..... ..... @qrr_h +FRINTP_v 0.00 1110 1.1 00001 10001 0 ..... ..... @qrr_sd + +FRINTZ_v 0.00 1110 111 11001 10011 0 ..... ..... @qrr_h +FRINTZ_v 0.00 1110 1.1 00001 10011 0 ..... ..... @qrr_sd + +FRINTA_v 0.10 1110 011 11001 10001 0 ..... ..... @qrr_h +FRINTA_v 0.10 1110 0.1 00001 10001 0 ..... ..... @qrr_sd + +FRINTX_v 0.10 1110 011 11001 10011 0 ..... ..... @qrr_h +FRINTX_v 0.10 1110 0.1 00001 10011 0 ..... ..... @qrr_sd + +FRINTI_v 0.10 1110 111 11001 10011 0 ..... ..... @qrr_h +FRINTI_v 0.10 1110 1.1 00001 10011 0 ..... ..... @qrr_sd + +FRINT32Z_v 0.00 1110 0.1 00001 11101 0 ..... ..... @qrr_sd +FRINT32X_v 0.10 1110 0.1 00001 11101 0 ..... ..... @qrr_sd +FRINT64Z_v 0.00 1110 0.1 00001 11111 0 ..... ..... @qrr_sd +FRINT64X_v 0.10 1110 0.1 00001 11111 0 ..... ..... @qrr_sd