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X-Received-From: 2607:f8b0:4864:20::441 Subject: [Qemu-devel] [PATCH v5 2/5] target/arm: Implement FMLAL and FMLSL for aarch64 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- target/arm/cpu.h | 5 ++++ target/arm/translate-a64.c | 49 +++++++++++++++++++++++++++++++++++++- 2 files changed, 53 insertions(+), 1 deletion(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 1eea1a408b..69589573e4 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -3356,6 +3356,11 @@ static inline bool isar_feature_aa64_dp(const ARMISA= Registers *id) return FIELD_EX64(id->id_aa64isar0, ID_AA64ISAR0, DP) !=3D 0; } =20 +static inline bool isar_feature_aa64_fhm(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64isar0, ID_AA64ISAR0, FHM) !=3D 0; +} + static inline bool isar_feature_aa64_jscvt(const ARMISARegisters *id) { return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, JSCVT) !=3D 0; diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index c56e878787..d3c8eaf089 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -10917,9 +10917,29 @@ static void disas_simd_3same_float(DisasContext *s= , uint32_t insn) if (!fp_access_check(s)) { return; } - handle_3same_float(s, size, elements, fpopcode, rd, rn, rm); return; + + case 0x1d: /* FMLAL */ + case 0x3d: /* FMLSL */ + case 0x59: /* FMLAL2 */ + case 0x79: /* FMLSL2 */ + if (size & 1 || !dc_isar_feature(aa64_fhm, s)) { + unallocated_encoding(s); + return; + } + if (fp_access_check(s)) { + int is_s =3D extract32(insn, 23, 1); + int is_2 =3D extract32(insn, 29, 1); + int data =3D (is_2 << 1) | is_s; + tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, rd), + vec_full_reg_offset(s, rn), + vec_full_reg_offset(s, rm), cpu_env, + is_q ? 16 : 8, vec_full_reg_size(s), + data, gen_helper_gvec_fmlal_a64); + } + return; + default: unallocated_encoding(s); return; @@ -12739,6 +12759,17 @@ static void disas_simd_indexed(DisasContext *s, ui= nt32_t insn) } is_fp =3D 2; break; + case 0x00: /* FMLAL */ + case 0x04: /* FMLSL */ + case 0x18: /* FMLAL2 */ + case 0x1c: /* FMLSL2 */ + if (is_scalar || size !=3D MO_32 || !dc_isar_feature(aa64_fhm, s))= { + unallocated_encoding(s); + return; + } + size =3D MO_16; + /* is_fp, but we pass cpu_env not fp_status. */ + break; default: unallocated_encoding(s); return; @@ -12849,6 +12880,22 @@ static void disas_simd_indexed(DisasContext *s, ui= nt32_t insn) tcg_temp_free_ptr(fpst); } return; + + case 0x00: /* FMLAL */ + case 0x04: /* FMLSL */ + case 0x18: /* FMLAL2 */ + case 0x1c: /* FMLSL2 */ + { + int is_s =3D extract32(opcode, 2, 1); + int is_2 =3D u; + int data =3D (index << 2) | (is_2 << 1) | is_s; + tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, rd), + vec_full_reg_offset(s, rn), + vec_full_reg_offset(s, rm), cpu_env, + is_q ? 16 : 8, vec_full_reg_size(s), + data, gen_helper_gvec_fmlal_idx_a64); + } + return; } =20 if (size =3D=3D 3) { --=20 2.17.2