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Fri, 25 Apr 2025 02:35:20 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20Chigot?= To: qemu-devel@nongnu.org Cc: atar4qemu@gmail.com, mark.cave-ayland@ilande.co.uk, =?UTF-8?q?Cl=C3=A9ment=20Chigot?= Subject: [PATCH] target/sparc: don't set FSR_NVA when comparing unordered floats Date: Fri, 25 Apr 2025 11:35:13 +0200 Message-Id: <20250425093513.863289-1-chigot@adacore.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::334; envelope-from=chigot@adacore.com; helo=mail-wm1-x334.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 @adacore.com) X-ZM-MESSAGEID: 1745573747918019000 FSR_NVA should be set when one of the operands is a signaling NaN or when using FCMPEx instructions. But those cases are already handled within check_ieee_exception or floatxx_compare functions. Otherwise, it should be left untouched. FTR, this was detected by inf-compare-[5678] tests within gcc testsuites. Signed-off-by: Cl=C3=A9ment Chigot --- target/sparc/fop_helper.c | 1 - 1 file changed, 1 deletion(-) diff --git a/target/sparc/fop_helper.c b/target/sparc/fop_helper.c index c25097d07f..b57da7c9ea 100644 --- a/target/sparc/fop_helper.c +++ b/target/sparc/fop_helper.c @@ -446,7 +446,6 @@ static uint32_t finish_fcmp(CPUSPARCState *env, FloatRe= lation r, uintptr_t ra) case float_relation_greater: return 2; case float_relation_unordered: - env->fsr |=3D FSR_NVA; return 3; } g_assert_not_reached(); --=20 2.34.1