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([91.209.212.80]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5402960b0absm26024e87.102.2024.12.10.08.24.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2024 08:24:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733847866; x=1734452666; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=X2MkVYunVkKmUvj6RPjfdhN6vrB0UjSjV1F2stZxQnk=; b=lzimNxu+wkyI4KJwFuMYWiVtg0YKRxDmX1nRBkJsGLLy8KnFq8WhJrAyXSu8zNz1to skQZ0prioMFVVLBoQsXiK6zVpEKIKOpV/XOruBXfdxVh0TRshoU+Ey+yhWH+1KV1be2d SI9dH/dKEfJmaIWp01uNoeT+BAoafBktMqOuC4+PczI/4gNQ+KMR81EtLG3fx+A95i/u AKHTMQK4BIe//dJE4RTlYtuZaSNVmVlDPoE9NxHUalTD88PaXrDWO0Djkmj5vnPitnUw JqTA1qapfKi1NdgEBE8Fh/UciinBUbx8FEGeaYy9vk62w6XTNavj7ZnDtynB8ZWZmz5D WpWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733847866; x=1734452666; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=X2MkVYunVkKmUvj6RPjfdhN6vrB0UjSjV1F2stZxQnk=; b=bTk4X17HpE3x7TgW47tXnchWqc6mUBMhjVcnj2NQlvL21ulin4iqS4q/lQtqMjzyqZ wysgzL8vcBWa0FJJHgEhiUySDm0LZaNPSTXrYe/inurq7sZLs/Lc65uqCzYxqTk+fDA0 PNFb1SeD7Zhy3zIl6uTbuX2UkcMJu8Fh8FnwHrtKo94h+1TA1eyA1uqa5W2rDOyagv8X Rmui5Fo5w1FE5LB+NlyLUyD8VZKzBbXD2YAh1wlSN2BCLhXJ6cttRmJEyatU1F8e4AxJ En5ANN9GXzZonuAeTzicgg1fFTDKWamW6RQioMs6+lHH5XF5HiSC5xeTEKiJIlSlx+0U 6J/g== X-Gm-Message-State: AOJu0YzjXTVq9yBwU6nRsjtwQODLxxiEOsorFcT/5SeWznizVpEP9VUE AKA6nCVIyt5INajdzwZKbTvWXbsr/kTlDzseDlCE08tb2pJ6BPOfEBQf4f0+LoByGlXf3ogrSO7 nfmlDFWGz X-Gm-Gg: ASbGncu4WGPeHOcLP5kRET2+NzvMrr9iHohPrrijxW0h8fqw+MMr8sDygoPZ4jMQTPK ymN1auVXZlLrlESwUG2RJFhhjf1qngxSKgvhwE/P85PF7971bnwAbvAkQog5EILqO2E5hp0Sqw7 4LinKEzVh1f3CDU81rzSSPKPRblSP7MXVhBR/PyiBCWOV7vSIE3Ft+FnFUVozaDXpkzcXb9u3NM A1xTP9h+qKjIotHFeLUsAXCslaDuGm9BbktTHUb2IE0bWQ+IRUKTQU5mmg= X-Google-Smtp-Source: AGHT+IHwhrBFaqjPfr2e7xn+Nn2Reaju9bQpwVmztCkot7vTfho1uoy8wFx4FVj/xLittdXy6DjfXw== X-Received: by 2002:a05:6512:124f:b0:540:1dac:c032 with SMTP id 2adb3069b0e04-5401dacc1bbmr3140318e87.6.1733847866249; Tue, 10 Dec 2024 08:24:26 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell Subject: [PATCH v2 55/69] target/arm: Convert FSQRT (vector) to decodetree Date: Tue, 10 Dec 2024 10:17:19 -0600 Message-ID: <20241210161733.1830573-56-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 Content-Transfer-Encoding: quoted-printable 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: pass client-ip=2a00:1450:4864:20::134; envelope-from=richard.henderson@linaro.org; helo=mail-lf1-x134.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=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1733848167695116600 Content-Type: text/plain; charset="utf-8" Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 67 +++++++++++++++++++++++++--------- target/arm/tcg/a64.decode | 3 ++ 2 files changed, 53 insertions(+), 17 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index f810e31ccc..287e9338a4 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -9164,6 +9164,51 @@ static bool do_fabs_fneg_v(DisasContext *s, arg_qrr_= e *a, GVecGen2Fn *fn) TRANS(FABS_v, do_fabs_fneg_v, a, gen_gvec_fabs) TRANS(FNEG_v, do_fabs_fneg_v, a, gen_gvec_fneg) =20 +static bool do_fp1_vector(DisasContext *s, arg_qrr_e *a, + const FPScalar1 *f, int rmode) +{ + TCGv_i32 tcg_rmode =3D NULL; + TCGv_ptr fpst; + int check =3D fp_access_check_vector_hsd(s, a->q, a->esz); + + if (check <=3D 0) { + return check =3D=3D 0; + } + + fpst =3D fpstatus_ptr(a->esz =3D=3D MO_16 ? FPST_FPCR_F16 : FPST_FPCR); + if (rmode >=3D 0) { + tcg_rmode =3D gen_set_rmode(rmode, fpst); + } + + if (a->esz =3D=3D MO_64) { + TCGv_i64 t64 =3D tcg_temp_new_i64(); + + for (int pass =3D 0; pass < 2; ++pass) { + read_vec_element(s, t64, a->rn, pass, MO_64); + f->gen_d(t64, t64, fpst); + write_vec_element(s, t64, a->rd, pass, MO_64); + } + } else { + TCGv_i32 t32 =3D tcg_temp_new_i32(); + void (*gen)(TCGv_i32, TCGv_i32, TCGv_ptr) + =3D (a->esz =3D=3D MO_16 ? f->gen_h : f->gen_s); + + for (int pass =3D 0, n =3D (a->q ? 16 : 8) >> a->esz; pass < n; ++= pass) { + read_vec_element_i32(s, t32, a->rn, pass, a->esz); + gen(t32, t32, fpst); + write_vec_element_i32(s, t32, a->rd, pass, a->esz); + } + } + clear_vec_high(s, a->q, a->rd); + + if (rmode >=3D 0) { + gen_restore_rmode(tcg_rmode, fpst); + } + return true; +} + +TRANS(FSQRT_v, do_fp1_vector, a, &f_scalar_fsqrt, -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, @@ -9461,9 +9506,6 @@ static void handle_2misc_64(DisasContext *s, int opco= de, bool u, * requires them. */ switch (opcode) { - case 0x7f: /* FSQRT */ - gen_helper_vfp_sqrtd(tcg_rd, tcg_rn, tcg_fpstatus); - break; case 0x1a: /* FCVTNS */ case 0x1b: /* FCVTMS */ case 0x1c: /* FCVTAS */ @@ -9507,6 +9549,7 @@ static void handle_2misc_64(DisasContext *s, int opco= de, bool u, case 0xb: /* ABS, NEG */ case 0x2f: /* FABS */ case 0x6f: /* FNEG */ + case 0x7f: /* FSQRT */ g_assert_not_reached(); } } @@ -10004,13 +10047,6 @@ static void disas_simd_two_reg_misc(DisasContext *= s, uint32_t insn) } handle_2misc_fcmp_zero(s, opcode, false, u, is_q, size, rn, rd= ); return; - case 0x7f: /* FSQRT */ - need_fpstatus =3D true; - if (size =3D=3D 3 && !is_q) { - unallocated_encoding(s); - return; - } - break; case 0x1a: /* FCVTNS */ case 0x1b: /* FCVTMS */ case 0x3a: /* FCVTPS */ @@ -10104,6 +10140,7 @@ static void disas_simd_two_reg_misc(DisasContext *s= , uint32_t insn) case 0x56: /* FCVTXN, FCVTXN2 */ case 0x2f: /* FABS */ case 0x6f: /* FNEG */ + case 0x7f: /* FSQRT */ unallocated_encoding(s); return; } @@ -10176,9 +10213,6 @@ static void disas_simd_two_reg_misc(DisasContext *s= , uint32_t insn) { /* Special cases for 32 bit elements */ switch (opcode) { - case 0x7f: /* FSQRT */ - gen_helper_vfp_sqrts(tcg_res, tcg_op, tcg_fpstatus); - break; case 0x1a: /* FCVTNS */ case 0x1b: /* FCVTMS */ case 0x1c: /* FCVTAS */ @@ -10221,6 +10255,7 @@ static void disas_simd_two_reg_misc(DisasContext *s= , uint32_t insn) case 0x7: /* SQABS, SQNEG */ case 0x2f: /* FABS */ case 0x6f: /* FNEG */ + case 0x7f: /* FSQRT */ g_assert_not_reached(); } } @@ -10364,11 +10399,11 @@ static void disas_simd_two_reg_misc_fp16(DisasCon= text *s, uint32_t insn) rmode =3D FPROUNDING_ZERO; break; case 0x7d: /* FRSQRTE */ - case 0x7f: /* FSQRT (vector) */ break; default: case 0x2f: /* FABS */ case 0x6f: /* FNEG */ + case 0x7f: /* FSQRT (vector) */ unallocated_encoding(s); return; } @@ -10473,12 +10508,10 @@ static void disas_simd_two_reg_misc_fp16(DisasCon= text *s, uint32_t insn) case 0x7d: /* FRSQRTE */ gen_helper_rsqrte_f16(tcg_res, tcg_op, tcg_fpstatus); break; - case 0x7f: /* FSQRT */ - gen_helper_vfp_sqrth(tcg_res, tcg_op, tcg_fpstatus); - break; default: case 0x2f: /* FABS */ case 0x6f: /* FNEG */ + case 0x7f: /* FSQRT */ g_assert_not_reached(); } =20 diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index f46bd1a715..1e0eb4a748 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -1694,3 +1694,6 @@ FABS_v 0.00 1110 1.1 00000 11111 0 ..... ...= .. @qrr_sd =20 FNEG_v 0.10 1110 111 11000 11111 0 ..... ..... @qrr_h 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 --=20 2.43.0