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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::42e; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42e.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: 2.1.23 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" Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --- fpu/softfloat.c | 17 ++++------------- fpu/softfloat-specialize.c.inc | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+), 13 deletions(-) diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 073b80d502..6d5392aeab 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -705,7 +705,7 @@ static float128 float128_pack_raw(const FloatParts128 *= p) #define PARTS_GENERIC_64_128(NAME, P) \ QEMU_GENERIC(P, (FloatParts128 *, parts128_##NAME), parts64_##NAME) =20 -#define parts_default_nan parts64_default_nan +#define parts_default_nan(P, S) PARTS_GENERIC_64_128(default_nan, P)(P,= S) #define parts_silence_nan(P, S) PARTS_GENERIC_64_128(silence_nan, P)(P,= S) =20 =20 @@ -3836,20 +3836,11 @@ float64 float64_default_nan(float_status *status) =20 float128 float128_default_nan(float_status *status) { - FloatParts64 p; - float128 r; + FloatParts128 p; =20 parts_default_nan(&p, status); - /* Extrapolate from the choices made by parts_default_nan to fill - * in the quad-floating format. If the low bit is set, assume we - * want to set all non-snan bits. - */ - r.low =3D -(p.frac & 1); - r.high =3D p.frac >> (DECOMPOSED_BINARY_POINT - 48); - r.high |=3D UINT64_C(0x7FFF000000000000); - r.high |=3D (uint64_t)p.sign << 63; - - return r; + frac_shr(&p, float128_params.frac_shift); + return float128_pack_raw(&p); } =20 bfloat16 bfloat16_default_nan(float_status *status) diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc index d892016f0f..a0cf016b4f 100644 --- a/fpu/softfloat-specialize.c.inc +++ b/fpu/softfloat-specialize.c.inc @@ -172,6 +172,25 @@ static void parts64_default_nan(FloatParts64 *p, float= _status *status) }; } =20 +static void parts128_default_nan(FloatParts128 *p, float_status *status) +{ + /* + * Extrapolate from the choices made by parts64_default_nan to fill + * in the quad-floating format. If the low bit is set, assume we + * want to set all non-snan bits. + */ + FloatParts64 p64; + parts64_default_nan(&p64, status); + + *p =3D (FloatParts128) { + .cls =3D float_class_qnan, + .sign =3D p64.sign, + .exp =3D INT_MAX, + .frac_hi =3D p64.frac, + .frac_lo =3D -(p64.frac & 1) + }; +} + /*------------------------------------------------------------------------= ---- | Returns a quiet NaN from a signalling NaN for the deconstructed | floating-point parts. --=20 2.25.1