diff options
Diffstat (limited to 'sysdeps/aarch64/fpu/sinf_sve.c')
| -rw-r--r-- | sysdeps/aarch64/fpu/sinf_sve.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/sysdeps/aarch64/fpu/sinf_sve.c b/sysdeps/aarch64/fpu/sinf_sve.c index 4d2ce7a846..590881c14b 100644 --- a/sysdeps/aarch64/fpu/sinf_sve.c +++ b/sysdeps/aarch64/fpu/sinf_sve.c @@ -23,7 +23,7 @@ static const struct data { float poly[4]; /* Pi-related values to be loaded as one quad-word and used with - svmla_lane_f32. */ + svmla_lane. */ float negpi1, negpi2, negpi3, invpi; float shift; } data = { @@ -57,40 +57,42 @@ svfloat32_t SV_NAME_F1 (sin) (svfloat32_t x, const svbool_t pg) { const struct data *d = ptr_barrier (&data); - svfloat32_t ax = svabs_f32_x (pg, x); - svuint32_t sign = sveor_u32_x (pg, svreinterpret_u32_f32 (x), - svreinterpret_u32_f32 (ax)); - svbool_t cmp = svcmpge_n_u32 (pg, svreinterpret_u32_f32 (ax), RangeVal); + svfloat32_t ax = svabs_x (pg, x); + svuint32_t sign + = sveor_x (pg, svreinterpret_u32 (x), svreinterpret_u32 (ax)); + svbool_t cmp = svcmpge (pg, svreinterpret_u32 (ax), RangeVal); /* pi_vals are a quad-word of helper values - the first 3 elements contain -pi in extended precision, the last contains 1 / pi. */ - svfloat32_t pi_vals = svld1rq_f32 (svptrue_b32 (), &d->negpi1); + svfloat32_t pi_vals = svld1rq (svptrue_b32 (), &d->negpi1); /* n = rint(|x|/pi). */ - svfloat32_t n = svmla_lane_f32 (sv_f32 (d->shift), ax, pi_vals, 3); - svuint32_t odd = svlsl_n_u32_x (pg, svreinterpret_u32_f32 (n), 31); - n = svsub_n_f32_x (pg, n, d->shift); + svfloat32_t n = svmla_lane (sv_f32 (d->shift), ax, pi_vals, 3); + svuint32_t odd = svlsl_x (pg, svreinterpret_u32 (n), 31); + n = svsub_x (pg, n, d->shift); /* r = |x| - n*pi (range reduction into -pi/2 .. pi/2). */ svfloat32_t r; - r = svmla_lane_f32 (ax, n, pi_vals, 0); - r = svmla_lane_f32 (r, n, pi_vals, 1); - r = svmla_lane_f32 (r, n, pi_vals, 2); + r = svmla_lane (ax, n, pi_vals, 0); + r = svmla_lane (r, n, pi_vals, 1); + r = svmla_lane (r, n, pi_vals, 2); /* sin(r) approx using a degree 9 polynomial from the Taylor series expansion. Note that only the odd terms of this are non-zero. */ - svfloat32_t r2 = svmul_f32_x (pg, r, r); + svfloat32_t r2 = svmul_x (pg, r, r); svfloat32_t y; - y = svmla_f32_x (pg, C (2), r2, C (3)); - y = svmla_f32_x (pg, C (1), r2, y); - y = svmla_f32_x (pg, C (0), r2, y); - y = svmla_f32_x (pg, r, r, svmul_f32_x (pg, y, r2)); + y = svmla_x (pg, C (2), r2, C (3)); + y = svmla_x (pg, C (1), r2, y); + y = svmla_x (pg, C (0), r2, y); + y = svmla_x (pg, r, r, svmul_x (pg, y, r2)); /* sign = y^sign^odd. */ - y = svreinterpret_f32_u32 (sveor_u32_x (pg, svreinterpret_u32_f32 (y), - sveor_u32_x (pg, sign, odd))); + sign = sveor_x (pg, sign, odd); if (__glibc_unlikely (svptest_any (pg, cmp))) - return special_case (x, y, cmp); - return y; + return special_case (x, + svreinterpret_f32 (sveor_x ( + svnot_z (pg, cmp), svreinterpret_u32 (y), sign)), + cmp); + return svreinterpret_f32 (sveor_x (pg, svreinterpret_u32 (y), sign)); } |