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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4997abf8fdcsm105828465e9.12.2026.08.12.00.06.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Aug 2026 00:06:40 -0700 (PDT) Message-ID: <2f9a705d-c587-43b2-9af0-e852fd8d5ba1@oss.qualcomm.com> Date: Wed, 12 Aug 2026 09:06:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 7/7] tcg/aarch64: Use CTZ from FEAT_CSSC Content-Language: en-US To: Richard Henderson , qemu-devel@nongnu.org References: <20260812003143.225228-1-richard.henderson@linaro.org> <20260812003143.225228-8-richard.henderson@linaro.org> From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20260812003143.225228-8-richard.henderson@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODEyMDA1NSBTYWx0ZWRfX+Dw8I+4O9uYV zHUtmfhzzfkuZmdwdU4/VcLqOzX3ChR5x4IzaaMu8W+smyTRAvkNs7eFS/0e/wcrCsIHMrge1+N Zazi/7T2O/XwcEHPWReycHPAARxaOcE= X-Proofpoint-GUID: ayKmGgDcsx50hVkU2GpSPakCnZK5jnhg X-Authority-Analysis: v=2.4 cv=fpDsol4f c=1 sm=1 tr=0 ts=6a7c1b82 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=4s3hRJSeHn4rkQlkrse1kQ==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=M51BFTxLslgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=1tSEMpTH9XP_W59IOagA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: ayKmGgDcsx50hVkU2GpSPakCnZK5jnhg X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEyMDA1NSBTYWx0ZWRfX5Bo3v7oDc8zS LJHOFgcA4tJHG6o3Fove/ou1cc7GpZiobGos3V86ZQcsHpHQJvxhwakItgDX+4Atxb63/BQl7dT f1tPVBkAmq6Fnca/DrXP6suSMmXTRCcDsav8IflR4QrJlTiiwfFKrzAuukC4DHoQiWWisTvQ/oo Qr7Tejbsh3pxMFrDiNK0cTjXxKmFB4Zv0Ew4Xxv4kb7ECzexQOm7XoRwKgOGSfL+WzaZQycIe6L KdSJVEcebUVcDVH1/P3zMnGuzbDC9/YkZ1Ra1M/Mxad/IgLHDqdDym+qo97w1Fhq8oL9jj6nzou KS1b1REIp1vIfxqoJmB9AZrDDB2zoayrxSEFf6Qbrd8H+A5BvZPVRJvo96ndaFOcDkKaSCvMGf8 3FJZbD3VuQNZzabySU7CiUZY+rmm9Cy7GRXI4QbKXYJnQ4QBW3nxKLVwmcZhzkIJUc/Y2U3rjol jgkiKA8hXaPNq1C10vA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-12_02,2026-08-10_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 spamscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 malwarescore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608120055 Received-SPF: pass client-ip=205.220.180.131; envelope-from=philmd@oss.qualcomm.com; helo=mx0b-0031df01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 12/8/26 02:31, Richard Henderson wrote: > We already have an expansion of CTZ using RBIT+CLZ, > but use the new insn with FEAT_CSSC is present. > > Signed-off-by: Richard Henderson > --- > tcg/aarch64/tcg-target.c.inc | 43 +++++++++++++++++++++++++++--------- > 1 file changed, 32 insertions(+), 11 deletions(-) Reviewed-by: Philippe Mathieu-Daudé