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[187.189.51.143]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-71d7254473asm1822220a34.27.2024.12.01.07.06.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Dec 2024 07:06:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1733065599; x=1733670399; 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=Oa8jCHWcHUduOv5ySi+C3ZNEUi60S76SFi2t2Jixe3U=; b=ooMvb3KqilpflaykpaWLKzzTXmYv9/rLTlxIo1Vl8wfOEEbZ/PXTH+IFb7+xKhOfRd JZbW9stHQcfmVnpELWzXBISlSLGEXNZZa1yyHlHr1PapRST/ib503j8KJRXn8a+o43+2 hDASQcrBQ5cyYO9jK4+uSnuP6ixxX/Ku7JCBe2keMGDUaE1JQJ6tcFttk1NimeVRznt7 f5eUjckn2tMRWcmmrxehkn16BMyS5QyEW4P9SIa86T5aLNW/kisjSbTnRX5PtVCY6e5x lOAZnpsx25OV9Ovaeine/OSZLTnZxc4gCnp6bdO+oev6OMdhTYm72ZEcu2uippBuWrN/ v5Eg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733065599; x=1733670399; 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=Oa8jCHWcHUduOv5ySi+C3ZNEUi60S76SFi2t2Jixe3U=; b=fRFH3/ZDjdu40YQnL4pv4SP+hnpas8A+Kj5PiqTxiAZjZSViEO8/FG4m4xGTA3IjmD izivYp/cEr1Ny+9/QA9tgrGNDYgQYDljvf9yh43tpCko/uy1LJXmWdFVj/zgOjaKeo3T 9CMLKyw+Wq0n0aaBlarN1BLnGJT/I9w7BLMkhd1gnpu1r46kuZ+211vtY0UuWtluAHiZ uCHCaPm+zisPLyWs7vw3yU3PKfnOwWIczHI1/Ya51/E7V+jT51cxR5WwBgXAgwL4cZsA ow6y7XXWfoRTkF54qykrJxx9IyfucziwYjTmxqgaiOz0MwuX+VcFhZxd1c30ufXDue4T I6ow== X-Gm-Message-State: AOJu0YyBjpGkuQqk4swv0sf3kyEI36ci31PoMQBGjI7EaYYZa6PjRZzF 3IISNiQrlizoLgv+UVgLm7zcnSutj6I/bUsgbcBh/WHsuLU2VnzMWtswzJ2OfDS5eg+lAO6SpWb Ul5Q= X-Gm-Gg: ASbGncswn5LV8nMB3bDqrexvCMXHlZI81lXRncJs9nDrowBQo4s92WYbGqZ26D7XgkO ZaAQJqTWcSzad1VI2ONmodYrwILaNwwXz0u0HHZHcAWg1EJXBcu6bZ/DVGJVeTN7izGYSafQbNX +bA2m4dc8t4kMUU4t6lWFtRjPLpXbeBhOtizfVFWs0z5yTapy5Ndg9gNdecGlsAmjkCxyGXkQU2 llKTmtJjpOCIwDy/MdWcQUBkpuJBlyiLkS5I2nigR9UVPczDbMhD0+ivIajNJmr6ExwWnXzKMBW hjKzCZPVClOynjSqyrVLv9NH2k95sl+6QYxg X-Google-Smtp-Source: AGHT+IGCdewSCExyTvibmpMzeQHEUdpOYzum3VL6Kor+ZT1jXPgYRqOyqvpA9BD44ieuV4YDpT+3dA== X-Received: by 2002:a05:6830:6a8d:b0:70f:7123:1f34 with SMTP id 46e09a7af769-71d65d36c77mr14382124a34.30.1733065598991; Sun, 01 Dec 2024 07:06:38 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH 26/67] target/arm: Convert FSQRT (scalar) to decodetree Date: Sun, 1 Dec 2024 09:05:25 -0600 Message-ID: <20241201150607.12812-27-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241201150607.12812-1-richard.henderson@linaro.org> References: <20241201150607.12812-1-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=2607:f8b0:4864:20::c32; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc32.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1733066085224116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/tcg/translate-a64.c | 70 +++++++++++++++++++++++++++++----- target/arm/tcg/a64.decode | 1 + 2 files changed, 61 insertions(+), 10 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 4d945f2d5b..750db921cd 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -8348,6 +8348,63 @@ static const FPScalar1Int f_scalar_fneg =3D { }; TRANS(FNEG_s, do_fp1_scalar_int, a, &f_scalar_fneg) =20 +typedef struct FPScalar1 { + void (*gen_h)(TCGv_i32, TCGv_i32, TCGv_ptr); + void (*gen_s)(TCGv_i32, TCGv_i32, TCGv_ptr); + void (*gen_d)(TCGv_i64, TCGv_i64, TCGv_ptr); +} FPScalar1; + +static bool do_fp1_scalar(DisasContext *s, arg_rr_e *a, + const FPScalar1 *f, int rmode) +{ + TCGv_i32 tcg_rmode =3D NULL; + TCGv_ptr fpst; + TCGv_i64 t64; + TCGv_i32 t32; + int check =3D fp_access_check_scalar_hsd(s, 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); + } + + switch (a->esz) { + case MO_64: + t64 =3D read_fp_dreg(s, a->rn); + f->gen_d(t64, t64, fpst); + write_fp_dreg(s, a->rd, t64); + break; + case MO_32: + t32 =3D read_fp_sreg(s, a->rn); + f->gen_s(t32, t32, fpst); + write_fp_sreg(s, a->rd, t32); + break; + case MO_16: + t32 =3D read_fp_hreg(s, a->rn); + f->gen_h(t32, t32, fpst); + write_fp_sreg(s, a->rd, t32); + break; + default: + g_assert_not_reached(); + } + + if (rmode >=3D 0) { + gen_restore_rmode(tcg_rmode, fpst); + } + return true; +} + +static const FPScalar1 f_scalar_fsqrt =3D { + gen_helper_vfp_sqrth, + gen_helper_vfp_sqrts, + gen_helper_vfp_sqrtd, +}; +TRANS(FSQRT_s, do_fp1_scalar, a, &f_scalar_fsqrt, -1) + /* Floating-point data-processing (1 source) - half precision */ static void handle_fp_1src_half(DisasContext *s, int opcode, int rd, int r= n) { @@ -8356,10 +8413,6 @@ static void handle_fp_1src_half(DisasContext *s, int= opcode, int rd, int rn) TCGv_i32 tcg_res =3D tcg_temp_new_i32(); =20 switch (opcode) { - case 0x3: /* FSQRT */ - fpst =3D fpstatus_ptr(FPST_FPCR_F16); - gen_helper_vfp_sqrth(tcg_res, tcg_op, fpst); - break; case 0x8: /* FRINTN */ case 0x9: /* FRINTP */ case 0xa: /* FRINTM */ @@ -8386,6 +8439,7 @@ static void handle_fp_1src_half(DisasContext *s, int = opcode, int rd, int rn) case 0x0: /* FMOV */ case 0x1: /* FABS */ case 0x2: /* FNEG */ + case 0x3: /* FSQRT */ g_assert_not_reached(); } =20 @@ -8404,9 +8458,6 @@ static void handle_fp_1src_single(DisasContext *s, in= t opcode, int rd, int rn) tcg_res =3D tcg_temp_new_i32(); =20 switch (opcode) { - case 0x3: /* FSQRT */ - gen_fpst =3D gen_helper_vfp_sqrts; - break; case 0x6: /* BFCVT */ gen_fpst =3D gen_helper_bfcvt; break; @@ -8442,6 +8493,7 @@ static void handle_fp_1src_single(DisasContext *s, in= t opcode, int rd, int rn) case 0x0: /* FMOV */ case 0x1: /* FABS */ case 0x2: /* FNEG */ + case 0x3: /* FSQRT */ g_assert_not_reached(); } =20 @@ -8469,9 +8521,6 @@ static void handle_fp_1src_double(DisasContext *s, in= t opcode, int rd, int rn) tcg_res =3D tcg_temp_new_i64(); =20 switch (opcode) { - case 0x3: /* FSQRT */ - gen_fpst =3D gen_helper_vfp_sqrtd; - break; case 0x8: /* FRINTN */ case 0x9: /* FRINTP */ case 0xa: /* FRINTM */ @@ -8504,6 +8553,7 @@ static void handle_fp_1src_double(DisasContext *s, in= t opcode, int rd, int rn) case 0x0: /* FMOV */ case 0x1: /* FABS */ case 0x2: /* FNEG */ + case 0x3: /* FSQRT */ g_assert_not_reached(); } =20 diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index fca64c63c3..9e5ea14683 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -1327,6 +1327,7 @@ FMINV_s 0110 1110 10 11000 01111 10 ..... ...= .. @rr_q1e2 FMOV_s 00011110 .. 1 000000 10000 ..... ..... @rr_hsd FABS_s 00011110 .. 1 000001 10000 ..... ..... @rr_hsd FNEG_s 00011110 .. 1 000010 10000 ..... ..... @rr_hsd +FSQRT_s 00011110 .. 1 000011 10000 ..... ..... @rr_hsd =20 # Floating-point Immediate =20 --=20 2.43.0