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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-390e479596dsm13984075f8f.7.2025.03.03.02.18.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 03 Mar 2025 02:18:34 -0800 (PST) Message-ID: <63ee2093-85e3-4142-8dbb-e69e8744e742@linaro.org> Date: Mon, 3 Mar 2025 11:18:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 027/162] tcg/arm: Fix constraints for sub To: Richard Henderson , qemu-devel@nongnu.org References: <20250216231012.2808572-1-richard.henderson@linaro.org> <20250216231012.2808572-28-richard.henderson@linaro.org> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20250216231012.2808572-28-richard.henderson@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=philmd@linaro.org; helo=mail-wr1-x434.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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 17/2/25 00:07, Richard Henderson wrote: > In 7536b82d288 we lost the rI constraint that allowed the use of > RSB to perform reg = imm - reg. At the same time, drop support > for reg = reg - imm, which is now transformed generically to > addition, and need not be handled by the backend. > > Signed-off-by: Richard Henderson > --- > tcg/arm/tcg-target-con-set.h | 1 + > tcg/arm/tcg-target.c.inc | 11 ++++------- > 2 files changed, 5 insertions(+), 7 deletions(-) Reviewed-by: Philippe Mathieu-Daudé