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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::529; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x529.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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alex.bennee@linaro.org, david@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This behavior is currently hard-coded in parts_silence_nan, but setting this bit properly will allow this to be cleaned up. Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e Reviewed-by: David Hildenbrand --- target/mips/fpu_helper.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/target/mips/fpu_helper.h b/target/mips/fpu_helper.h index 1c2d6d35a7..ad1116e8c1 100644 --- a/target/mips/fpu_helper.h +++ b/target/mips/fpu_helper.h @@ -27,8 +27,14 @@ static inline void restore_flush_mode(CPUMIPSState *env) =20 static inline void restore_snan_bit_mode(CPUMIPSState *env) { - set_snan_bit_is_one((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) =3D= =3D 0, - &env->active_fpu.fp_status); + bool nan2008 =3D env->active_fpu.fcr31 & (1 << FCR31_NAN2008); + + /* + * With nan2008, SNaNs are silenced in the usual way. + * Before that, SNaNs are not silenced; default nans are produced. + */ + set_snan_bit_is_one(!nan2008, &env->active_fpu.fp_status); + set_default_nan_mode(!nan2008, &env->active_fpu.fp_status); } =20 static inline void restore_fp_status(CPUMIPSState *env) --=20 2.25.1