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([71.212.142.33]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a3c83f226sm254416a91.0.2026.05.20.10.18.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 10:18:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1779297506; x=1779902306; 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=aizZ6KsxuScbuarSuGl62Wou0yp8xd59JdQCbRvge3Q=; b=c/zAX4lzRbGWc7nIPGb7/e2HFtKp+iOZL5o0Bu7k6CXaqtqPHGIhMrhfkb4hXOsyvC TvcVhhJZM5+maRc2Y1boawV7h+BjYZF4c8QpcLkIYx71vD1wUhQ/LUATeBbrITaOIFXt c1xbwf3W5rZmDIp/zYj3gIyQkrrxgcmFab20z2ofujbYKQpQ7ohUMf4smqOfuAaJ7np3 zbNSw8jFEK7NhEq5PQWGW/DY4OkzOcE03cWmtTXX5RGzxdsVEWsPirgemGKez8HH084X TYVIP1Rjh35b8FYPq80UWwoWvMHUfrzfM8SkP2VmmSjkGYbBf1gTdzTwcmLmrVAbRN56 TGQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779297506; x=1779902306; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=aizZ6KsxuScbuarSuGl62Wou0yp8xd59JdQCbRvge3Q=; b=orD3wdSeGcNZzJzLEtDt2W0dQKnMo1BzYpNE4Z/DgaxsnzXql9HH91AogBtoSvULYw ZMkvk6WQNv1Wm2ApCrd38HFrbAyb6fCwd3jFO6GS7AURuv3Nje+O6W+msyuOmqkqYmMs jS9Oa5RCiebk5B5PwLG8tyEzQ1QM0EHnLwZlH9PlcOFXuC2zSSYKWdczD4X4wvcAcfDE iUEF8msGUEm/o41jVR7phmOSbdOz4G9WYAwVrtEpihQ4JYr9riNhFE6p2Gagdtzzp8EZ zIqq4CPCXki1IMyj90tpfJGHbZ/EkvNl77r06nR+PUDkCdDpsuoHNPveT+wUEiJLyfdH m3KQ== X-Gm-Message-State: AOJu0YzFhY+YzJNt6tyksxav7BTbHMkQ4OlQUKkA2uPgZRdTh5l+ObW1 pCs7XPSH57N5ax1+PAUC/V0H431ynMn5NMedTjqwbTeWFl6gL839j5P8lPyd41S5fElwHpTet// x0Gh/NQA= X-Gm-Gg: Acq92OFNfg98MfDuvGouhU3galnFZ4caNJXu3jB2F8i8fexMcQYFcKzPBB9homM8MFY MkgUviWbfON8TojuSVMvOjsrkVl2NdQY4XbVZP3nSJxhCmeP9YafdKoLGjrFKNXNvHalhDMAHBN hwv/7Nt4rYuvBU/H3FjoRaURFtBICVBIUWzamjeLjSvtYFFEAYZV1MsDxZ+ZtJEYMXHlZwxUYys VH5UcnKSNT8KuMPl3pZChoK+7J2y1xRXd/BsiWm7XOtqPylzHYaPAP6AQIJHwyD6WD7FJzX3Mag OCgkxIcoXzTFIRZ4awTNFwOS292IlPuxCp+FqHqlA4tJnxNKah9M0qtiMeeCFlR/RQWOJoPF9uX Rec6FNew0alUu5yO5BuUDEtqRwdSxMg7M+cbjD6515P9NCSOZsAxW8CzHLNBWdztaL9aCuNMkS6 g8LgxFTLREiTWgLii3nV0MQ+2evuWb X-Received: by 2002:a17:90b:3901:b0:35f:b5df:463 with SMTP id 98e67ed59e1d1-36951b7835amr22394826a91.14.1779297505710; Wed, 20 May 2026 10:18:25 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH v5 05/30] fpu: Simplify 0 +/- N case in parts_addsub Date: Wed, 20 May 2026 10:17:55 -0700 Message-ID: <20260520171820.848839-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260520171820.848839-1-richard.henderson@linaro.org> References: <20260520171820.848839-1-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=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1035; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1035.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: qemu development 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: 1779297610414158500 Content-Type: text/plain; charset="utf-8" Consolidate the tests for zero and anynorm. Add comments for a few cases. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- fpu/softfloat-parts.c.inc | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index 3246702289..45606f8402 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -556,6 +556,7 @@ FloatPartsN partsN(addsub)(const FloatPartsN *a_orig, } =20 if (ab_mask =3D=3D float_cmask_zero) { + /* 0 - 0 */ a.sign =3D s->float_rounding_mode =3D=3D float_round_down; return a; } @@ -581,23 +582,20 @@ FloatPartsN partsN(addsub)(const FloatPartsN *a_orig, } =20 if (ab_mask =3D=3D float_cmask_zero) { + /* 0 + 0 */ return a; } =20 if (ab_mask & float_cmask_inf) { + /* N + Inf or Inf + N */ a.cls =3D float_class_inf; return a; } } =20 - if (b.cls =3D=3D float_class_zero) { - g_assert(is_anynorm(a.cls)); - return a; - } - - g_assert(a.cls =3D=3D float_class_zero); - g_assert(is_anynorm(b.cls)); - return b; + /* 0 +/- N or N +/- 0 */ + assert((ab_mask & float_cmask_zero) && (ab_mask & float_cmask_anynorm)= ); + return b.cls =3D=3D float_class_zero ? a : b; } =20 /* --=20 2.43.0