@@ -1,16 +1,17 @@
-float-advsimd-funcs = cos sin
+float-advsimd-funcs = cos sin log
-double-advsimd-funcs = cos sin
+double-advsimd-funcs = cos sin log
-float-sve-funcs = cos sin
+float-sve-funcs = cos sin log
-double-sve-funcs = cos sin
+double-sve-funcs = cos sin log
ifeq ($(subdir),mathvec)
libmvec-support = $(addsuffix f_advsimd,$(float-advsimd-funcs)) \
$(addsuffix _advsimd,$(double-advsimd-funcs)) \
$(addsuffix f_sve,$(float-sve-funcs)) \
- $(addsuffix _sve,$(double-sve-funcs))
+ $(addsuffix _sve,$(double-sve-funcs)) \
+ v_log_data
endif
sve-cflags = -march=armv8-a+sve
@@ -1,11 +1,15 @@
libmvec {
GLIBC_2.38 {
_ZGVnN2v_cos;
+ _ZGVnN2v_log;
_ZGVnN2v_sin;
_ZGVnN4v_cosf;
+ _ZGVnN4v_logf;
_ZGVnN4v_sinf;
_ZGVsMxv_cos;
_ZGVsMxv_cosf;
+ _ZGVsMxv_log;
+ _ZGVsMxv_logf;
_ZGVsMxv_sin;
_ZGVsMxv_sinf;
}
@@ -50,9 +50,11 @@ typedef __SVBool_t __sv_bool_t;
# define __vpcs __attribute__ ((__aarch64_vector_pcs__))
__vpcs __f32x4_t _ZGVnN4v_cosf (__f32x4_t);
+__vpcs __f32x4_t _ZGVnN4v_logf (__f32x4_t);
__vpcs __f32x4_t _ZGVnN4v_sinf (__f32x4_t);
__vpcs __f64x2_t _ZGVnN2v_cos (__f64x2_t);
+__vpcs __f64x2_t _ZGVnN2v_log (__f64x2_t);
__vpcs __f64x2_t _ZGVnN2v_sin (__f64x2_t);
# undef __ADVSIMD_VEC_MATH_SUPPORTED
@@ -61,9 +63,11 @@ __vpcs __f64x2_t _ZGVnN2v_sin (__f64x2_t);
#ifdef __SVE_VEC_MATH_SUPPORTED
__sv_f32_t _ZGVsMxv_cosf (__sv_f32_t, __sv_bool_t);
+__sv_f32_t _ZGVsMxv_logf (__sv_f32_t, __sv_bool_t);
__sv_f32_t _ZGVsMxv_sinf (__sv_f32_t, __sv_bool_t);
__sv_f64_t _ZGVsMxv_cos (__sv_f64_t, __sv_bool_t);
+__sv_f64_t _ZGVsMxv_log (__sv_f64_t, __sv_bool_t);
__sv_f64_t _ZGVsMxv_sin (__sv_f64_t, __sv_bool_t);
# undef __SVE_VEC_MATH_SUPPORTED
new file mode 100644
@@ -0,0 +1,104 @@
+/* Double-precision vector (Advanced SIMD) log function.
+
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include "v_math.h"
+
+static const volatile struct
+{
+ float64x2_t poly[5];
+ float64x2_t ln2;
+ uint64x2_t min_norm, special_bound, sign_exp_mask;
+} data = {
+ /* Worst-case error: 1.17 + 0.5 ulp.
+ Rel error: 0x1.6272e588p-56 in [ -0x1.fc1p-9 0x1.009p-8 ]. */
+ .poly = { V2 (-0x1.ffffffffffff7p-2), V2 (0x1.55555555170d4p-2),
+ V2 (-0x1.0000000399c27p-2), V2 (0x1.999b2e90e94cap-3),
+ V2 (-0x1.554e550bd501ep-3) },
+ .ln2 = V2 (0x1.62e42fefa39efp-1),
+ .min_norm = V2 (0x0010000000000000),
+ .special_bound = V2 (0x7fe0000000000000), /* asuint64(inf) - min_norm. */
+ .sign_exp_mask = V2 (0xfff0000000000000)
+};
+
+#define A(i) data.poly[i]
+#define N (1 << V_LOG_TABLE_BITS)
+#define IndexMask (N - 1)
+#define Off v_u64 (0x3fe6900900000000)
+
+struct entry
+{
+ float64x2_t invc;
+ float64x2_t logc;
+};
+
+static inline struct entry
+lookup (uint64x2_t i)
+{
+ /* Since N is a power of 2, n % N = n & (N - 1). */
+ struct entry e;
+ e.invc[0] = __v_log_data.invc[i[0] & IndexMask];
+ e.logc[0] = __v_log_data.logc[i[0] & IndexMask];
+ e.invc[1] = __v_log_data.invc[i[1] & IndexMask];
+ e.logc[1] = __v_log_data.logc[i[1] & IndexMask];
+ return e;
+}
+
+static float64x2_t VPCS_ATTR NOINLINE
+special_case (float64x2_t x, float64x2_t y, uint64x2_t cmp)
+{
+ return v_call_f64 (log, x, y, cmp);
+}
+
+float64x2_t VPCS_ATTR V_NAME_D1 (log) (float64x2_t x)
+{
+ float64x2_t z, r, r2, p, y, kd, hi;
+ uint64x2_t ix, iz, tmp, cmp;
+ int64x2_t k;
+ struct entry e;
+
+ ix = vreinterpretq_u64_f64 (x);
+ cmp = vcgeq_u64 (vsubq_u64 (ix, data.min_norm), data.special_bound);
+
+ /* x = 2^k z; where z is in range [Off,2*Off) and exact.
+ The range is split into N subintervals.
+ The ith subinterval contains z and c is near its center. */
+ tmp = vsubq_u64 (ix, Off);
+ k = vshrq_n_s64 (vreinterpretq_s64_u64 (tmp), 52); /* arithmetic shift. */
+ iz = vsubq_u64 (ix, vandq_u64 (tmp, data.sign_exp_mask));
+ z = vreinterpretq_f64_u64 (iz);
+ e = lookup (vshrq_n_u64 (tmp, 52 - V_LOG_TABLE_BITS));
+
+ /* log(x) = log1p(z/c-1) + log(c) + k*Ln2. */
+ r = vfmaq_f64 (v_f64 (-1.0), z, e.invc);
+ kd = vcvtq_f64_s64 (k);
+
+ /* hi = r + log(c) + k*Ln2. */
+ hi = vfmaq_f64 (vaddq_f64 (e.logc, r), kd, data.ln2);
+ /* y = r2*(A0 + r*A1 + r2*(A2 + r*A3 + r2*A4)) + hi. */
+ r2 = vmulq_f64 (r, r);
+ y = vfmaq_f64 (A (2), A (3), r);
+ p = vfmaq_f64 (A (0), A (1), r);
+ y = vfmaq_f64 (y, A (4), r2);
+ y = vfmaq_f64 (p, y, r2);
+ y = vfmaq_f64 (hi, y, r2);
+
+ if (__glibc_unlikely (v_any_u64 (cmp)))
+ return special_case (x, y, cmp);
+ return y;
+}
new file mode 100644
@@ -0,0 +1,80 @@
+/* Double-precision vector (SVE) log function.
+
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include "sv_math.h"
+
+#define P(i) sv_f64 (__v_log_data.poly[i])
+#define N (1 << V_LOG_TABLE_BITS)
+#define Off (0x3fe6900900000000)
+#define MaxTop (0x7ff)
+#define MinTop (0x001)
+#define ThreshTop (0x7fe) /* MaxTop - MinTop. */
+
+static svfloat64_t NOINLINE
+special_case (svfloat64_t x, svfloat64_t y, svbool_t cmp)
+{
+ return sv_call_f64 (log, x, y, cmp);
+}
+
+/* SVE port of AdvSIMD log algorithm.
+ Maximum measured error is 2.17 ulp:
+ SV_NAME_D1 (log)(0x1.a6129884398a3p+0) got 0x1.ffffff1cca043p-2
+ want 0x1.ffffff1cca045p-2. */
+svfloat64_t SV_NAME_D1 (log) (svfloat64_t x, const svbool_t pg)
+{
+ svuint64_t ix = svreinterpret_u64_f64 (x);
+ svuint64_t top = svlsr_n_u64_x (pg, ix, 52);
+ svbool_t cmp
+ = svcmpge_u64 (pg, svsub_n_u64_x (pg, top, MinTop), sv_u64 (ThreshTop));
+
+ /* x = 2^k z; where z is in range [Off,2*Off) and exact.
+ The range is split into N subintervals.
+ The ith subinterval contains z and c is near its center. */
+ svuint64_t tmp = svsub_n_u64_x (pg, ix, Off);
+ /* Equivalent to (tmp >> (52 - V_LOG_TABLE_BITS)) % N, since N is a power
+ of 2. */
+ svuint64_t i = svand_n_u64_x (
+ pg, svlsr_n_u64_x (pg, tmp, (52 - V_LOG_TABLE_BITS)), N - 1);
+ svint64_t k = svasr_n_s64_x (pg, svreinterpret_s64_u64 (tmp),
+ 52); /* Arithmetic shift. */
+ svuint64_t iz
+ = svsub_u64_x (pg, ix, svand_n_u64_x (pg, tmp, 0xfffULL << 52));
+ svfloat64_t z = svreinterpret_f64_u64 (iz);
+ /* Lookup in 2 global lists (length N). */
+ svfloat64_t invc = svld1_gather_u64index_f64 (pg, __v_log_data.invc, i);
+ svfloat64_t logc = svld1_gather_u64index_f64 (pg, __v_log_data.logc, i);
+
+ /* log(x) = log1p(z/c-1) + log(c) + k*Ln2. */
+ svfloat64_t r = svmad_n_f64_x (pg, invc, z, -1);
+ svfloat64_t kd = svcvt_f64_s64_x (pg, k);
+ /* hi = r + log(c) + k*Ln2. */
+ svfloat64_t hi
+ = svmla_n_f64_x (pg, svadd_f64_x (pg, logc, r), kd, __v_log_data.ln2);
+ /* y = r2*(A0 + r*A1 + r2*(A2 + r*A3 + r2*A4)) + hi. */
+ svfloat64_t r2 = svmul_f64_x (pg, r, r);
+ svfloat64_t y = svmla_f64_x (pg, P (2), r, P (3));
+ svfloat64_t p = svmla_f64_x (pg, P (0), r, P (1));
+ y = svmla_f64_x (pg, y, r2, P (4));
+ y = svmla_f64_x (pg, p, r2, y);
+ y = svmla_f64_x (pg, hi, r2, y);
+
+ if (__glibc_unlikely (svptest_any (pg, cmp)))
+ return special_case (x, y, cmp);
+ return y;
+}
new file mode 100644
@@ -0,0 +1,80 @@
+/* Single-precision vector (Advanced SIMD) log function.
+
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include "v_math.h"
+
+static const volatile struct
+{
+ float32x4_t poly[7];
+ float32x4_t ln2, tiny_bound;
+ uint32x4_t min_norm, special_bound, off, mantissa_mask;
+} data = {
+ /* 3.34 ulp error. */
+ .poly = { V4 (-0x1.3e737cp-3f), V4 (0x1.5a9aa2p-3f), V4 (-0x1.4f9934p-3f),
+ V4 (0x1.961348p-3f), V4 (-0x1.00187cp-2f), V4 (0x1.555d7cp-2f),
+ V4 (-0x1.ffffc8p-2f) },
+ .ln2 = V4 (0x1.62e43p-1f),
+ .tiny_bound = V4 (0x1p-126),
+ .min_norm = V4 (0x00800000),
+ .special_bound = V4 (0x7f000000), /* asuint32(inf) - min_norm. */
+ .off = V4 (0x3f2aaaab), /* 0.666667. */
+ .mantissa_mask = V4 (0x007fffff)
+};
+
+#define P(i) data.poly[7 - i]
+
+static float32x4_t VPCS_ATTR NOINLINE
+special_case (float32x4_t x, float32x4_t y, uint32x4_t cmp)
+{
+ /* Fall back to scalar code. */
+ return v_call_f32 (logf, x, y, cmp);
+}
+
+float32x4_t VPCS_ATTR V_NAME_F1 (log) (float32x4_t x)
+{
+ float32x4_t n, p, q, r, r2, y;
+ uint32x4_t u, cmp;
+
+ u = vreinterpretq_u32_f32 (x);
+ cmp = vcgeq_u32 (vsubq_u32 (u, data.min_norm), data.special_bound);
+
+ /* x = 2^n * (1+r), where 2/3 < 1+r < 4/3. */
+ u = vsubq_u32 (u, data.off);
+ n = vcvtq_f32_s32 (
+ vshrq_n_s32 (vreinterpretq_s32_u32 (u), 23)); /* signextend. */
+ u = vandq_u32 (u, data.mantissa_mask);
+ u = vaddq_u32 (u, data.off);
+ r = vsubq_f32 (vreinterpretq_f32_u32 (u), v_f32 (1.0f));
+
+ /* y = log(1+r) + n*ln2. */
+ r2 = vmulq_f32 (r, r);
+ /* n*ln2 + r + r2*(P1 + r*P2 + r2*(P3 + r*P4 + r2*(P5 + r*P6 + r2*P7))). */
+ p = vfmaq_f32 (P (5), P (6), r);
+ q = vfmaq_f32 (P (3), P (4), r);
+ y = vfmaq_f32 (P (1), P (2), r);
+ p = vfmaq_f32 (p, P (7), r2);
+ q = vfmaq_f32 (q, p, r2);
+ y = vfmaq_f32 (y, q, r2);
+ p = vfmaq_f32 (r, data.ln2, n);
+ y = vfmaq_f32 (p, y, r2);
+
+ if (__glibc_unlikely (v_any_u32 (cmp)))
+ return special_case (x, y, cmp);
+ return y;
+}
new file mode 100644
@@ -0,0 +1,85 @@
+/* Single-precision vector (SVE) log function.
+
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include "sv_math.h"
+
+static struct
+{
+ float poly_0135[4];
+ float poly_246[3];
+ float ln2;
+} data = {
+ .poly_0135 = {
+ /* Coefficients copied from the AdvSIMD routine in math/, then rearranged so
+ that coeffs 0, 1, 3 and 5 can be loaded as a single quad-word, hence used
+ with _lane variant of MLA intrinsic. */
+ -0x1.3e737cp-3f, 0x1.5a9aa2p-3f, 0x1.961348p-3f, 0x1.555d7cp-2f
+ },
+ .poly_246 = { -0x1.4f9934p-3f, -0x1.00187cp-2f, -0x1.ffffc8p-2f },
+ .ln2 = 0x1.62e43p-1f
+};
+
+#define Min (0x00800000)
+#define Max (0x7f800000)
+#define Thresh (0x7f000000) /* Max - Min. */
+#define Mask (0x007fffff)
+#define Off (0x3f2aaaab) /* 0.666667. */
+
+static svfloat32_t NOINLINE
+special_case (svfloat32_t x, svfloat32_t y, svbool_t cmp)
+{
+ return sv_call_f32 (logf, x, y, cmp);
+}
+
+/* Optimised implementation of SVE logf, using the same algorithm and
+ polynomial as the AdvSIMD routine. Maximum error is 3.34 ULPs:
+ SV_NAME_F1 (log)(0x1.557298p+0) got 0x1.26edecp-2
+ want 0x1.26ede6p-2. */
+svfloat32_t SV_NAME_F1 (log) (svfloat32_t x, const svbool_t pg)
+{
+ svuint32_t u = svreinterpret_u32_f32 (x);
+ svbool_t cmp = svcmpge_n_u32 (pg, svsub_n_u32_x (pg, u, Min), Thresh);
+
+ /* x = 2^n * (1+r), where 2/3 < 1+r < 4/3. */
+ u = svsub_n_u32_x (pg, u, Off);
+ svfloat32_t n
+ = svcvt_f32_s32_x (pg, svasr_n_s32_x (pg, svreinterpret_s32_u32 (u),
+ 23)); /* Sign-extend. */
+ u = svand_n_u32_x (pg, u, Mask);
+ u = svadd_n_u32_x (pg, u, Off);
+ svfloat32_t r = svsub_n_f32_x (pg, svreinterpret_f32_u32 (u), 1.0f);
+
+ /* y = log(1+r) + n*ln2. */
+ svfloat32_t r2 = svmul_f32_x (pg, r, r);
+ /* n*ln2 + r + r2*(P6 + r*P5 + r2*(P4 + r*P3 + r2*(P2 + r*P1 + r2*P0))). */
+ svfloat32_t p_0135 = svld1rq_f32 (svptrue_b32 (), &data.poly_0135[0]);
+ svfloat32_t p = svmla_lane_f32 (sv_f32 (data.poly_246[0]), r, p_0135, 1);
+ svfloat32_t q = svmla_lane_f32 (sv_f32 (data.poly_246[1]), r, p_0135, 2);
+ svfloat32_t y = svmla_lane_f32 (sv_f32 (data.poly_246[2]), r, p_0135, 3);
+ p = svmla_lane_f32 (p, r2, p_0135, 0);
+
+ q = svmla_f32_x (pg, q, r2, p);
+ y = svmla_f32_x (pg, y, r2, q);
+ p = svmla_n_f32_x (pg, r, n, data.ln2);
+ y = svmla_f32_x (pg, p, r2, y);
+
+ if (__glibc_unlikely (svptest_any (pg, cmp)))
+ return special_case (x, y, cmp);
+ return y;
+}
@@ -24,4 +24,5 @@
#define VEC_TYPE float64x2_t
VPCS_VECTOR_WRAPPER (cos_advsimd, _ZGVnN2v_cos)
+VPCS_VECTOR_WRAPPER (log_advsimd, _ZGVnN2v_log)
VPCS_VECTOR_WRAPPER (sin_advsimd, _ZGVnN2v_sin)
@@ -33,4 +33,5 @@
}
SVE_VECTOR_WRAPPER (cos_sve, _ZGVsMxv_cos)
+SVE_VECTOR_WRAPPER (log_sve, _ZGVsMxv_log)
SVE_VECTOR_WRAPPER (sin_sve, _ZGVsMxv_sin)
@@ -24,4 +24,5 @@
#define VEC_TYPE float32x4_t
VPCS_VECTOR_WRAPPER (cosf_advsimd, _ZGVnN4v_cosf)
+VPCS_VECTOR_WRAPPER (logf_advsimd, _ZGVnN4v_logf)
VPCS_VECTOR_WRAPPER (sinf_advsimd, _ZGVnN4v_sinf)
@@ -33,4 +33,5 @@
}
SVE_VECTOR_WRAPPER (cosf_sve, _ZGVsMxv_cosf)
+SVE_VECTOR_WRAPPER (logf_sve, _ZGVsMxv_logf)
SVE_VECTOR_WRAPPER (sinf_sve, _ZGVsMxv_sinf)
new file mode 100644
@@ -0,0 +1,173 @@
+/* Lookup table for double-precision log(x) vector function.
+
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include "vecmath_config.h"
+
+const struct v_log_data __v_log_data = {
+ /* Worst-case error: 1.17 + 0.5 ulp.
+ Rel error: 0x1.6272e588p-56 in [ -0x1.fc1p-9 0x1.009p-8 ]. */
+ .poly = { -0x1.ffffffffffff7p-2, 0x1.55555555170d4p-2, -0x1.0000000399c27p-2,
+ 0x1.999b2e90e94cap-3, -0x1.554e550bd501ep-3 },
+ .ln2 = 0x1.62e42fefa39efp-1,
+ /* Algorithm:
+
+ x = 2^k z
+ log(x) = k ln2 + log(c) + poly(z/c - 1)
+
+ where z is in [a;2a) which is split into N subintervals (a=0x1.69009p-1,
+ N=128) and log(c) and 1/c for the ith subinterval comes from two lookup
+ tables:
+
+ invc[i] = 1/c
+ logc[i] = (double)log(c)
+
+ where c is near the center of the subinterval and is chosen by trying
+ several floating point invc candidates around 1/center and selecting one
+ for which the error in (double)log(c) is minimized (< 0x1p-74), except the
+ subinterval that contains 1 and the previous one got tweaked to avoid
+ cancellation. */
+ .invc = { 0x1.6a133d0dec120p+0, 0x1.6815f2f3e42edp+0,
+ 0x1.661e39be1ac9ep+0, 0x1.642bfa30ac371p+0,
+ 0x1.623f1d916f323p+0, 0x1.60578da220f65p+0,
+ 0x1.5e75349dea571p+0, 0x1.5c97fd387a75ap+0,
+ 0x1.5abfd2981f200p+0, 0x1.58eca051dc99cp+0,
+ 0x1.571e526d9df12p+0, 0x1.5554d555b3fcbp+0,
+ 0x1.539015e2a20cdp+0, 0x1.51d0014ee0164p+0,
+ 0x1.50148538cd9eep+0, 0x1.4e5d8f9f698a1p+0,
+ 0x1.4cab0edca66bep+0, 0x1.4afcf1a9db874p+0,
+ 0x1.495327136e16fp+0, 0x1.47ad9e84af28fp+0,
+ 0x1.460c47b39ae15p+0, 0x1.446f12b278001p+0,
+ 0x1.42d5efdd720ecp+0, 0x1.4140cfe001a0fp+0,
+ 0x1.3fafa3b421f69p+0, 0x1.3e225c9c8ece5p+0,
+ 0x1.3c98ec29a211ap+0, 0x1.3b13442a413fep+0,
+ 0x1.399156baa3c54p+0, 0x1.38131639b4cdbp+0,
+ 0x1.36987540fbf53p+0, 0x1.352166b648f61p+0,
+ 0x1.33adddb3eb575p+0, 0x1.323dcd99fc1d3p+0,
+ 0x1.30d129fefc7d2p+0, 0x1.2f67e6b72fe7dp+0,
+ 0x1.2e01f7cf8b187p+0, 0x1.2c9f518ddc86ep+0,
+ 0x1.2b3fe86e5f413p+0, 0x1.29e3b1211b25cp+0,
+ 0x1.288aa08b373cfp+0, 0x1.2734abcaa8467p+0,
+ 0x1.25e1c82459b81p+0, 0x1.2491eb1ad59c5p+0,
+ 0x1.23450a54048b5p+0, 0x1.21fb1bb09e578p+0,
+ 0x1.20b415346d8f7p+0, 0x1.1f6fed179a1acp+0,
+ 0x1.1e2e99b93c7b3p+0, 0x1.1cf011a7a882ap+0,
+ 0x1.1bb44b97dba5ap+0, 0x1.1a7b3e66cdd4fp+0,
+ 0x1.1944e11dc56cdp+0, 0x1.18112aebb1a6ep+0,
+ 0x1.16e013231b7e9p+0, 0x1.15b1913f156cfp+0,
+ 0x1.14859cdedde13p+0, 0x1.135c2dc68cfa4p+0,
+ 0x1.12353bdb01684p+0, 0x1.1110bf25b85b4p+0,
+ 0x1.0feeafd2f8577p+0, 0x1.0ecf062c51c3bp+0,
+ 0x1.0db1baa076c8bp+0, 0x1.0c96c5bb3048ep+0,
+ 0x1.0b7e20263e070p+0, 0x1.0a67c2acd0ce3p+0,
+ 0x1.0953a6391e982p+0, 0x1.0841c3caea380p+0,
+ 0x1.07321489b13eap+0, 0x1.062491aee9904p+0,
+ 0x1.05193497a7cc5p+0, 0x1.040ff6b5f5e9fp+0,
+ 0x1.0308d19aa6127p+0, 0x1.0203beedb0c67p+0,
+ 0x1.010037d38bcc2p+0, 1.0,
+ 0x1.fc06d493cca10p-1, 0x1.f81e6ac3b918fp-1,
+ 0x1.f44546ef18996p-1, 0x1.f07b10382c84bp-1,
+ 0x1.ecbf7070e59d4p-1, 0x1.e91213f715939p-1,
+ 0x1.e572a9a75f7b7p-1, 0x1.e1e0e2c530207p-1,
+ 0x1.de5c72d8a8be3p-1, 0x1.dae50fa5658ccp-1,
+ 0x1.d77a71145a2dap-1, 0x1.d41c51166623ep-1,
+ 0x1.d0ca6ba0bb29fp-1, 0x1.cd847e8e59681p-1,
+ 0x1.ca4a499693e00p-1, 0x1.c71b8e399e821p-1,
+ 0x1.c3f80faf19077p-1, 0x1.c0df92dc2b0ecp-1,
+ 0x1.bdd1de3cbb542p-1, 0x1.baceb9e1007a3p-1,
+ 0x1.b7d5ef543e55ep-1, 0x1.b4e749977d953p-1,
+ 0x1.b20295155478ep-1, 0x1.af279f8e82be2p-1,
+ 0x1.ac5638197fdf3p-1, 0x1.a98e2f102e087p-1,
+ 0x1.a6cf5606d05c1p-1, 0x1.a4197fc04d746p-1,
+ 0x1.a16c80293dc01p-1, 0x1.9ec82c4dc5bc9p-1,
+ 0x1.9c2c5a491f534p-1, 0x1.9998e1480b618p-1,
+ 0x1.970d9977c6c2dp-1, 0x1.948a5c023d212p-1,
+ 0x1.920f0303d6809p-1, 0x1.8f9b698a98b45p-1,
+ 0x1.8d2f6b81726f6p-1, 0x1.8acae5bb55badp-1,
+ 0x1.886db5d9275b8p-1, 0x1.8617ba567c13cp-1,
+ 0x1.83c8d27487800p-1, 0x1.8180de3c5dbe7p-1,
+ 0x1.7f3fbe71cdb71p-1, 0x1.7d055498071c1p-1,
+ 0x1.7ad182e54f65ap-1, 0x1.78a42c3c90125p-1,
+ 0x1.767d342f76944p-1, 0x1.745c7ef26b00ap-1,
+ 0x1.7241f15769d0fp-1, 0x1.702d70d396e41p-1,
+ 0x1.6e1ee3700cd11p-1, 0x1.6c162fc9cbe02p-1 },
+ .logc = { -0x1.62fe995eb963ap-2, -0x1.5d5a48dad6b67p-2,
+ -0x1.57bde257d2769p-2, -0x1.52294fbf2af55p-2,
+ -0x1.4c9c7b598aa38p-2, -0x1.47174fc5ff560p-2,
+ -0x1.4199b7fa7b5cap-2, -0x1.3c239f48cfb99p-2,
+ -0x1.36b4f154d2aebp-2, -0x1.314d9a0ff32fbp-2,
+ -0x1.2bed85cca3cffp-2, -0x1.2694a11421af9p-2,
+ -0x1.2142d8d014fb2p-2, -0x1.1bf81a2c77776p-2,
+ -0x1.16b452a39c6a4p-2, -0x1.11776ffa6c67ep-2,
+ -0x1.0c416035020e0p-2, -0x1.071211aa10fdap-2,
+ -0x1.01e972e293b1bp-2, -0x1.f98ee587fd434p-3,
+ -0x1.ef5800ad716fbp-3, -0x1.e52e160484698p-3,
+ -0x1.db1104b19352ep-3, -0x1.d100ac59e0bd6p-3,
+ -0x1.c6fced287c3bdp-3, -0x1.bd05a7b317c29p-3,
+ -0x1.b31abd229164fp-3, -0x1.a93c0edadb0a3p-3,
+ -0x1.9f697ee30d7ddp-3, -0x1.95a2efa9aa40ap-3,
+ -0x1.8be843d796044p-3, -0x1.82395ecc477edp-3,
+ -0x1.7896240966422p-3, -0x1.6efe77aca8c55p-3,
+ -0x1.65723e117ec5cp-3, -0x1.5bf15c0955706p-3,
+ -0x1.527bb6c111da1p-3, -0x1.491133c939f8fp-3,
+ -0x1.3fb1b90c7fc58p-3, -0x1.365d2cc485f8dp-3,
+ -0x1.2d13758970de7p-3, -0x1.23d47a721fd47p-3,
+ -0x1.1aa0229f25ec2p-3, -0x1.117655ddebc3bp-3,
+ -0x1.0856fbf83ab6bp-3, -0x1.fe83fabbaa106p-4,
+ -0x1.ec6e8507a56cdp-4, -0x1.da6d68c7cc2eap-4,
+ -0x1.c88078462be0cp-4, -0x1.b6a786a423565p-4,
+ -0x1.a4e2676ac7f85p-4, -0x1.9330eea777e76p-4,
+ -0x1.8192f134d5ad9p-4, -0x1.70084464f0538p-4,
+ -0x1.5e90bdec5cb1fp-4, -0x1.4d2c3433c5536p-4,
+ -0x1.3bda7e219879ap-4, -0x1.2a9b732d27194p-4,
+ -0x1.196eeb2b10807p-4, -0x1.0854be8ef8a7ep-4,
+ -0x1.ee998cb277432p-5, -0x1.ccadb79919fb9p-5,
+ -0x1.aae5b1d8618b0p-5, -0x1.89413015d7442p-5,
+ -0x1.67bfe7bf158dep-5, -0x1.46618f83941bep-5,
+ -0x1.2525df1b0618ap-5, -0x1.040c8e2f77c6ap-5,
+ -0x1.c62aad39f738ap-6, -0x1.847fe3bdead9cp-6,
+ -0x1.43183683400acp-6, -0x1.01f31c4e1d544p-6,
+ -0x1.82201d1e6b69ap-7, -0x1.00dd0f3e1bfd6p-7,
+ -0x1.ff6fe1feb4e53p-9, 0.0,
+ 0x1.fe91885ec8e20p-8, 0x1.fc516f716296dp-7,
+ 0x1.7bb4dd70a015bp-6, 0x1.f84c99b34b674p-6,
+ 0x1.39f9ce4fb2d71p-5, 0x1.7756c0fd22e78p-5,
+ 0x1.b43ee82db8f3ap-5, 0x1.f0b3fced60034p-5,
+ 0x1.165bd78d4878ep-4, 0x1.3425d2715ebe6p-4,
+ 0x1.51b8bd91b7915p-4, 0x1.6f15632c76a47p-4,
+ 0x1.8c3c88ecbe503p-4, 0x1.a92ef077625dap-4,
+ 0x1.c5ed5745fa006p-4, 0x1.e27876de1c993p-4,
+ 0x1.fed104fce4cdcp-4, 0x1.0d7bd9c17d78bp-3,
+ 0x1.1b76986cef97bp-3, 0x1.295913d24f750p-3,
+ 0x1.37239fa295d17p-3, 0x1.44d68dd78714bp-3,
+ 0x1.52722ebe5d780p-3, 0x1.5ff6d12671f98p-3,
+ 0x1.6d64c2389484bp-3, 0x1.7abc4da40fddap-3,
+ 0x1.87fdbda1e8452p-3, 0x1.95295b06a5f37p-3,
+ 0x1.a23f6d34abbc5p-3, 0x1.af403a28e04f2p-3,
+ 0x1.bc2c06a85721ap-3, 0x1.c903161240163p-3,
+ 0x1.d5c5aa93287ebp-3, 0x1.e274051823fa9p-3,
+ 0x1.ef0e656300c16p-3, 0x1.fb9509f05aa2ap-3,
+ 0x1.04041821f37afp-2, 0x1.0a340a49b3029p-2,
+ 0x1.105a7918a126dp-2, 0x1.1677819812b84p-2,
+ 0x1.1c8b405b40c0ep-2, 0x1.2295d16cfa6b1p-2,
+ 0x1.28975066318a2p-2, 0x1.2e8fd855d86fcp-2,
+ 0x1.347f83d605e59p-2, 0x1.3a666d1244588p-2,
+ 0x1.4044adb6f8ec4p-2, 0x1.461a5f077558cp-2,
+ 0x1.4be799e20b9c8p-2, 0x1.51ac76a6b79dfp-2,
+ 0x1.57690d5744a45p-2, 0x1.5d1d758e45217p-2 }
+};
@@ -26,4 +26,14 @@
supported in GLIBC, however we keep it for ease of development. */
#define WANT_SIMD_EXCEPT 0
+#define V_LOG_POLY_ORDER 6
+#define V_LOG_TABLE_BITS 7
+extern const struct v_log_data
+{
+ /* Shared data for vector log and log-derived routines (e.g. asinh). */
+ double poly[V_LOG_POLY_ORDER - 1];
+ double ln2;
+ double invc[1 << V_LOG_TABLE_BITS];
+ double logc[1 << V_LOG_TABLE_BITS];
+} __v_log_data attribute_hidden;
#endif
@@ -1219,10 +1219,18 @@ double: 3
float: 3
ldouble: 1
+Function: "log_advsimd":
+double: 1
+float: 3
+
Function: "log_downward":
float: 2
ldouble: 1
+Function: "log_sve":
+double: 1
+float: 3
+
Function: "log_towardzero":
float: 2
ldouble: 2
@@ -1,8 +1,12 @@
GLIBC_2.38 _ZGVnN2v_cos F
+GLIBC_2.38 _ZGVnN2v_log F
GLIBC_2.38 _ZGVnN2v_sin F
GLIBC_2.38 _ZGVnN4v_cosf F
+GLIBC_2.38 _ZGVnN4v_logf F
GLIBC_2.38 _ZGVnN4v_sinf F
GLIBC_2.38 _ZGVsMxv_cos F
GLIBC_2.38 _ZGVsMxv_cosf F
+GLIBC_2.38 _ZGVsMxv_log F
+GLIBC_2.38 _ZGVsMxv_logf F
GLIBC_2.38 _ZGVsMxv_sin F
GLIBC_2.38 _ZGVsMxv_sinf F