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math: Use log1pf from CORE-MATH

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The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows slight better performance to the generic log1pf.

The code was adapted to glibc style and to use the definition of
math_config.h (to handle errno, overflow, and underflow).

Benchtest on x64_64 (Ryzen 9 5900X, gcc 14.2.1), aarch64 (M1,
gcc 13.2.1), and powerpc (POWER10, gcc 13.2.1):

Latency                      master        patched   improvement
x86_64                      71.8142        38.9668        45.74%
x86_64v2                    71.9094        39.1321        45.58%
x86_64v3                    60.1000        32.4016        46.09%
i686                        147.105        104.258        29.13%
aarch64                     26.4439        14.0050        47.04%
power10                     19.4874         9.4146        51.69%
powerpc                     17.6145        8.00736        54.54%

reciprocal-throughput        master        patched   improvement
x86_64                      19.7604        12.7254        35.60%
x86_64v2                    19.0039        11.9455        37.14%
x86_64v3                    16.8559        11.9317        29.21%
i686                        82.3426        73.9718        10.17%
aarch64                     14.4665         7.9614        44.97%
power10                     11.9974         8.4117        29.89%
powerpc                     7.15222         6.0914        14.83%

Signed-off-by: Alexei Sibidanov <sibid@uvic.ca>
Signed-off-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
This commit is contained in:
Adhemerval Zanella 2024-10-20 14:52:49 -03:00
parent c369580814
commit 8ae9e51376
30 changed files with 193 additions and 340 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
SHARED-FILES
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@ -260,3 +260,7 @@ sysdeps/ieee754/flt-32/s_log2p1f.c
(file src/binary32/log2p1/log2p1f.c in CORE-MATH)
- The code was adapted to use glibc code style and internal
functions to handle errno, overflow, and underflow.
sysdeps/ieee754/flt-32/s_log1pf.c
(file src/binary32/log1p/log1pf.c in CORE-MATH)
- The code was adapted to use glibc code style and internal
functions to handle errno, overflow, and underflow.

8
sysdeps/aarch64/libm-test-ulps
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@ -1366,7 +1366,6 @@ ldouble: 4
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_advsimd":
@ -1375,7 +1374,6 @@ float: 1
Function: "log1p_downward":
double: 1
float: 2
ldouble: 3
Function: "log1p_sve":
@ -1384,12 +1382,10 @@ float: 1
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1459,22 +1455,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 1
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

8
sysdeps/alpha/fpu/libm-test-ulps
View File

@ -1202,22 +1202,18 @@ ldouble: 3
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 2
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1267,22 +1263,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 2
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

8
sysdeps/arc/fpu/libm-test-ulps
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@ -981,19 +981,15 @@ float: 3
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 1
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
double: 2
@ -1029,19 +1025,15 @@ float: 1
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 1
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

1
sysdeps/arc/nofpu/libm-test-ulps
View File

@ -238,7 +238,6 @@ float: 2
Function: "log1p":
double: 1
float: 1
Function: "log2":
double: 2

8
sysdeps/arm/libm-test-ulps
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@ -974,19 +974,15 @@ float: 3
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 2
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
double: 2
@ -1028,19 +1024,15 @@ float: 2
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 2
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

8
sysdeps/csky/fpu/libm-test-ulps
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@ -919,19 +919,15 @@ float: 2
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 2
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
double: 2
@ -948,19 +944,15 @@ double: 3
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 2
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

8
sysdeps/csky/nofpu/libm-test-ulps
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@ -920,19 +920,15 @@ float: 2
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 2
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
double: 2
@ -962,19 +958,15 @@ float: 2
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 2
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

8
sysdeps/hppa/fpu/libm-test-ulps
View File

@ -997,19 +997,15 @@ float: 3
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 2
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
double: 2
@ -1051,19 +1047,15 @@ float: 2
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 2
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

6
sysdeps/i386/fpu/libm-test-ulps
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@ -1443,19 +1443,16 @@ ldouble: 2
Function: "log1p_downward":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "log1p_towardzero":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "log1p_upward":
double: 1
float: 1
float128: 2
ldouble: 3
@ -1524,19 +1521,16 @@ ldouble: 2
Function: "logp1_downward":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "logp1_towardzero":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "logp1_upward":
double: 1
float: 1
float128: 2
ldouble: 3

66
sysdeps/i386/fpu/s_log1pf.S
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@ -1,66 +0,0 @@
/*
* Public domain.
*/
#include <machine/asm.h>
#include <i386-math-asm.h>
RCSID("$NetBSD: s_log1pf.S,v 1.4 1995/05/09 00:13:05 jtc Exp $")
.section .rodata
.align ALIGNARG(4)
/* The fyl2xp1 can only be used for values in
-1 + sqrt(2) / 2 <= x <= 1 - sqrt(2) / 2
0.29 is a safe value.
*/
limit: .float 0.29
one: .float 1.0
DEFINE_FLT_MIN
#ifdef PIC
# define MO(op) op##@GOTOFF(%edx)
#else
# define MO(op) op
#endif
/*
* Use the fyl2xp1 function when the argument is in the range -0.29 to 0.29,
* otherwise fyl2x with the needed extra computation.
*/
.text
ENTRY(__log1pf)
fldln2
flds 4(%esp)
#ifdef PIC
LOAD_PIC_REG (dx)
#endif
fxam
fnstsw
fld %st
sahf
jc 3f // in case x is NaN or ±Inf
4: fabs
fcomps MO(limit)
fnstsw
sahf
jc 2f
fadds MO(one)
fyl2x
ret
2: fyl2xp1
FLT_CHECK_FORCE_UFLOW_NONNAN
ret
3: jp 4b // in case x is ±Inf
fstp %st(1)
fstp %st(1)
ret
END (__log1pf)

6
sysdeps/i386/i686/fpu/multiarch/libm-test-ulps
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@ -1446,19 +1446,16 @@ ldouble: 2
Function: "log1p_downward":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "log1p_towardzero":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "log1p_upward":
double: 1
float: 1
float128: 2
ldouble: 3
@ -1527,19 +1524,16 @@ ldouble: 2
Function: "logp1_downward":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "logp1_towardzero":
double: 1
float: 1
float128: 3
ldouble: 4
Function: "logp1_upward":
double: 1
float: 1
float128: 2
ldouble: 3

267
sysdeps/ieee754/flt-32/s_log1pf.c
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@ -1,116 +1,181 @@
/* s_log1pf.c -- float version of s_log1p.c.
*/
/* Correctly-rounded biased argument natural logarithm function for binary32
value.
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
Copyright (c) 2023, 2024 Alexei Sibidanov.
This file is part of the CORE-MATH project
project (file src/binary32/log1p/log1pf.c revision bc385c2).
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include <float.h>
#include <math.h>
#include <math-barriers.h>
#include <math_private.h>
#include <math-underflow.h>
#include <libc-diag.h>
#include <stdint.h>
#include <errno.h>
#include <libm-alias-float.h>
#include "math_config.h"
static const float
ln2_hi = 6.9313812256e-01, /* 0x3f317180 */
ln2_lo = 9.0580006145e-06, /* 0x3717f7d1 */
two25 = 3.355443200e+07, /* 0x4c000000 */
Lp1 = 6.6666668653e-01, /* 3F2AAAAB */
Lp2 = 4.0000000596e-01, /* 3ECCCCCD */
Lp3 = 2.8571429849e-01, /* 3E924925 */
Lp4 = 2.2222198546e-01, /* 3E638E29 */
Lp5 = 1.8183572590e-01, /* 3E3A3325 */
Lp6 = 1.5313838422e-01, /* 3E1CD04F */
Lp7 = 1.4798198640e-01; /* 3E178897 */
static const float zero = 0.0;
static __attribute__ ((noinline)) float
as_special (float x)
{
uint32_t t = asuint (x);
if (t == 0xbf800000u)
return __math_divzerof (1);
if (t == 0x7f800000u)
return x; /* +inf */
uint32_t ax = t << 1;
if (ax > 0xff000000u)
return x + x; /* nan */
return __math_invalidf (0.0f);
}
float
__log1pf(float x)
__log1pf (float x)
{
float hfsq,f,c,s,z,R,u;
int32_t k,hx,hu,ax;
GET_FLOAT_WORD(hx,x);
ax = hx&0x7fffffff;
k = 1;
if (hx < 0x3ed413d7) { /* x < 0.41422 */
if(ax>=0x3f800000) { /* x <= -1.0 */
if(x==(float)-1.0) return -two25/zero; /* log1p(-1)=-inf */
else return (x-x)/(x-x); /* log1p(x<-1)=NaN */
}
if(ax<0x31000000) { /* |x| < 2**-29 */
math_force_eval(two25+x); /* raise inexact */
if (ax<0x24800000) /* |x| < 2**-54 */
static const double x0[] =
{
math_check_force_underflow (x);
0x1.f81f82p-1, 0x1.e9131acp-1, 0x1.dae6077p-1, 0x1.cd85689p-1,
0x1.c0e0704p-1, 0x1.b4e81b5p-1, 0x1.a98ef6p-1, 0x1.9ec8e95p-1,
0x1.948b0fdp-1, 0x1.8acb90fp-1, 0x1.8181818p-1, 0x1.78a4c81p-1,
0x1.702e05cp-1, 0x1.6816817p-1, 0x1.605816p-1, 0x1.58ed231p-1,
0x1.51d07ebp-1, 0x1.4afd6ap-1, 0x1.446f865p-1, 0x1.3e22cbdp-1,
0x1.3813814p-1, 0x1.323e34ap-1, 0x1.2c9fb4ep-1, 0x1.27350b9p-1,
0x1.21fb781p-1, 0x1.1cf06aep-1, 0x1.1811812p-1, 0x1.135c811p-1,
0x1.0ecf56cp-1, 0x1.0a6810ap-1, 0x1.0624dd3p-1, 0x1.0204081p-1
};
static const double lixb[] =
{
0x1.fc0a8909b4218p-7, 0x1.77458f51aac89p-5, 0x1.341d793afb997p-4,
0x1.a926d3a5ebd2ap-4, 0x1.0d77e7a8a823dp-3, 0x1.44d2b6c557102p-3,
0x1.7ab89040accecp-3, 0x1.af3c94ecab3d6p-3, 0x1.e27076d54e6c9p-3,
0x1.0a324e3888ad5p-2, 0x1.22941fc0c7357p-2, 0x1.3a64c56ae3fdbp-2,
0x1.51aad874af21fp-2, 0x1.686c81d300eap-2, 0x1.7eaf83c7fa9b5p-2,
0x1.947941aa610ecp-2, 0x1.a9cec9a3f023bp-2, 0x1.beb4d9ea4156ep-2,
0x1.d32fe7f35e5c7p-2, 0x1.e7442617b817ap-2, 0x1.faf588dd5ed1p-2,
0x1.0723e5c635c39p-1, 0x1.109f39d53c99p-1, 0x1.19ee6b38a4668p-1,
0x1.23130d7f93c3bp-1, 0x1.2c0e9ec9b0b85p-1, 0x1.34e289cb35eccp-1,
0x1.3d9026ad3d3f3p-1, 0x1.4618bc1eadbbbp-1, 0x1.4e7d8127dd8a9p-1,
0x1.56bf9d5967092p-1, 0x1.5ee02a926936ep-1
};
static const double lix[] =
{
0x1.fc0a890fc03e4p-7, 0x1.77458f532dcfcp-5, 0x1.341d793bbd1d1p-4,
0x1.a926d3a6ad563p-4, 0x1.0d77e7a908e59p-3, 0x1.44d2b6c5b7d1ep-3,
0x1.7ab890410d909p-3, 0x1.af3c94ed0bff3p-3, 0x1.e27076d5af2e6p-3,
0x1.0a324e38b90e3p-2, 0x1.22941fc0f7966p-2, 0x1.3a64c56b145eap-2,
0x1.51aad874df82dp-2, 0x1.686c81d3314afp-2, 0x1.7eaf83c82afc3p-2,
0x1.947941aa916fbp-2, 0x1.a9cec9a42084ap-2, 0x1.beb4d9ea71b7cp-2,
0x1.d32fe7f38ebd5p-2, 0x1.e7442617e8788p-2, 0x1.faf588dd8f31fp-2,
0x1.0723e5c64df4p-1, 0x1.109f39d554c97p-1, 0x1.19ee6b38bc96fp-1,
0x1.23130d7fabf43p-1, 0x1.2c0e9ec9c8e8cp-1, 0x1.34e289cb4e1d3p-1,
0x1.3d9026ad556fbp-1, 0x1.4618bc1ec5ec2p-1, 0x1.4e7d8127f5bb1p-1,
0x1.56bf9d597f399p-1, 0x1.5ee02a9281675p-1
};
static const double b[] =
{
0x1p+0,
-0x1p-1,
0x1.5555555556f6bp-2,
-0x1.00000000029b9p-2,
0x1.9999988d176e4p-3,
-0x1.55555418889a7p-3,
0x1.24adeca50e2bcp-3,
-0x1.001ba33bf57cfp-3
};
double z = x;
uint32_t ux = asuint (x);
uint32_t ax = ux & (~0u >> 1);
if (__glibc_likely (ax < 0x3c880000))
{
if (__glibc_unlikely (ax < 0x33000000))
{
if (!ax)
return x;
return fmaf (x, -x, x);
}
else
return x - x*x*(float)0.5;
double z2 = z * z, z4 = z2 * z2;
double f = z2
* ((b[1] + z * b[2]) + z2 * (b[3] + z * b[4])
+ z4 * ((b[5] + z * b[6]) + z2 * b[7]));
double r = z + f;
if (__glibc_unlikely ((asuint64 (r) & 0xfffffffll) == 0))
r += 0x1p14 * (f + (z - r));
return r;
}
if(hx>0||hx<=((int32_t)0xbe95f61f)) {
k=0;f=x;hu=1;} /* -0.2929<x<0.41422 */
}
if (hx >= 0x7f800000) return x+x;
if(k!=0) {
if(hx<0x5a000000) {
u = (float)1.0+x;
GET_FLOAT_WORD(hu,u);
k = (hu>>23)-127;
/* correction term */
c = (k>0)? (float)1.0-(u-x):x-(u-(float)1.0);
c /= u;
} else {
u = x;
GET_FLOAT_WORD(hu,u);
k = (hu>>23)-127;
c = 0;
}
hu &= 0x007fffff;
if(hu<0x3504f7) {
SET_FLOAT_WORD(u,hu|0x3f800000);/* normalize u */
} else {
k += 1;
SET_FLOAT_WORD(u,hu|0x3f000000); /* normalize u/2 */
hu = (0x00800000-hu)>>2;
}
f = u-(float)1.0;
}
hfsq=(float)0.5*f*f;
if(hu==0) { /* |f| < 2**-20 */
if(f==zero) {
if(k==0) return zero;
else {c += k*ln2_lo; return k*ln2_hi+c;}
}
R = hfsq*(1.0f-0.66666666666666666f*f);
if(k==0) return f-R; else
return k*ln2_hi-((R-(k*ln2_lo+c))-f);
}
s = f/((float)2.0+f);
z = s*s;
R = z*(Lp1+z*(Lp2+z*(Lp3+z*(Lp4+z*(Lp5+z*(Lp6+z*Lp7))))));
if (k == 0)
return f - (hfsq - s * (hfsq + R));
else
{
/* With GCC 7 when compiling with -Os the compiler warns
that c might be used uninitialized. This can't be true
because k must be 0 for c to be uninitialized and we
handled that computation earlier without using c. */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
return k * ln2_hi - ((hfsq - (s * (hfsq + R)
+ (k * ln2_lo + c))) - f);
DIAG_POP_NEEDS_COMMENT;
if (__glibc_unlikely (ux >= 0xbf800000u || ax >= 0x7f800000))
return as_special (x);
uint64_t tp = asuint64 (z + 1);
int e = tp >> 52;
uint64_t m52 = tp & (~(uint64_t) 0 >> 12);
unsigned int j = (tp >> (52 - 5)) & 31;
e -= 0x3ff;
double xd = asdouble (m52 | ((uint64_t) 0x3ff << 52));
z = xd * x0[j] - 1;
static const double c[] =
{
-0x1.3902c33434e7fp-43, 0x1.ffffffe1cbed5p-1, -0x1.ffffff7d1b014p-2,
0x1.5564e0ed3613ap-2, -0x1.0012232a00d4ap-2
};
const double ln2 = 0x1.62e42fefa39efp-1;
double z2 = z * z,
r = (ln2 * e + lixb[j])
+ z * ((c[1] + z * c[2]) + z2 * (c[3] + z * c[4]));
float ub = r;
float lb = r + 2.2e-11;
if (__glibc_unlikely (ub != lb))
{
double z4 = z2 * z2,
f = z
* ((b[0] + z * b[1]) + z2 * (b[2] + z * b[3])
+ z4 * ((b[4] + z * b[5]) + z2 * (b[6] + z * b[7])));
const double ln2l = 0x1.7f7d1cf79abcap-20, ln2h = 0x1.62e4p-1;
double Lh = ln2h * e;
double Ll = ln2l * e;
double rl = f + Ll + lix[j];
double tr = rl + Lh;
if (__glibc_unlikely ((asuint64 (tr) & 0xfffffffll) == 0))
{
if (x == -0x1.247ab0p-6)
return -0x1.271f0ep-6f - 0x1p-31f;
if (x == -0x1.3a415ep-5)
return -0x1.407112p-5f + 0x1p-30f;
if (x == 0x1.fb035ap-2)
return 0x1.9bddc2p-2f + 0x1p-27f;
tr += 64 * (rl + (Lh - tr));
}
else if (rl + (Lh - tr) == 0.0)
{
if (x == 0x1.b7fd86p-4)
return 0x1.a1ece2p-4f + 0x1p-29f;
if (x == -0x1.3a415ep-5)
return -0x1.407112p-5f + 0x1p-30f;
if (x == 0x1.43c7e2p-6)
return 0x1.409f80p-6f + 0x1p-31f;
}
ub = tr;
}
return ub;
}
}
libm_alias_float (__log1p, log1p)
strong_alias (__log1pf, __logp1f)
libm_alias_float (__logp1, logp1)

1
sysdeps/ieee754/flt-32/w_log1pf.c Normal file
View File

@ -0,0 +1 @@
/* Not needed. */

8
sysdeps/loongarch/lp64/libm-test-ulps
View File

@ -1215,22 +1215,18 @@ ldouble: 4
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 2
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1278,22 +1274,18 @@ ldouble: 2
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 2
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

6
sysdeps/m68k/coldfire/fpu/libm-test-ulps
View File

@ -131,12 +131,6 @@ Function: "log10":
double: 1
float: 2
Function: "log1p":
float: 1
Function: "logp1":
float: 1
Function: "sincos":
double: 1
float: 1

20
sysdeps/m68k/m680x0/fpu/w_log1pf.c Normal file
View File

@ -0,0 +1,20 @@
/* Wrapper for __log1p that handles setting errno.
Copyright (C) 2015-2024 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 <math-type-macros-float.h>
#include <w_log1p_template.c>

2
sysdeps/microblaze/libm-test-ulps
View File

@ -224,7 +224,6 @@ float: 2
Function: "log1p":
double: 1
float: 1
Function: "log2":
double: 2
@ -232,7 +231,6 @@ float: 1
Function: "logp1":
double: 1
float: 1
Function: "pow":
float: 1

8
sysdeps/mips/mips32/libm-test-ulps
View File

@ -971,19 +971,15 @@ float: 3
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 2
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
double: 2
@ -1029,19 +1025,15 @@ float: 2
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 2
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

8
sysdeps/mips/mips64/libm-test-ulps
View File

@ -1220,22 +1220,18 @@ ldouble: 4
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 2
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1289,22 +1285,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 2
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

2
sysdeps/nios2/libm-test-ulps
View File

@ -230,7 +230,6 @@ float: 2
Function: "log1p":
double: 1
float: 1
Function: "log2":
double: 2
@ -238,7 +237,6 @@ float: 1
Function: "logp1":
double: 1
float: 1
Function: "pow":
double: 1

8
sysdeps/or1k/nofpu/libm-test-ulps
View File

@ -923,19 +923,15 @@ float: 2
Function: "log1p":
double: 1
float: 1
Function: "log1p_downward":
double: 2
float: 2
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log1p_upward":
double: 2
float: 2
Function: "log2":
float: 1
@ -951,19 +947,15 @@ double: 1
Function: "logp1":
double: 1
float: 1
Function: "logp1_downward":
double: 2
float: 2
Function: "logp1_towardzero":
double: 2
float: 2
Function: "logp1_upward":
double: 2
float: 2
Function: "pow":
double: 1

8
sysdeps/powerpc/fpu/libm-test-ulps
View File

@ -1521,25 +1521,21 @@ ldouble: 6
Function: "log1p":
double: 1
float: 1
float128: 3
ldouble: 2
Function: "log1p_downward":
double: 1
float: 2
float128: 3
ldouble: 2
Function: "log1p_towardzero":
double: 2
float: 2
float128: 3
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
float128: 2
ldouble: 3
@ -1605,25 +1601,21 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
float128: 3
ldouble: 2
Function: "logp1_downward":
double: 1
float: 2
float128: 3
ldouble: 2
Function: "logp1_towardzero":
double: 2
float: 2
float128: 3
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
float128: 2
ldouble: 3

8
sysdeps/powerpc/nofpu/libm-test-ulps
View File

@ -1277,22 +1277,18 @@ ldouble: 6
Function: "log1p":
double: 1
float: 1
ldouble: 2
Function: "log1p_downward":
double: 2
float: 2
ldouble: 2
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 2
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1346,22 +1342,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 2
Function: "logp1_downward":
double: 2
float: 2
ldouble: 2
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 2
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "mul_downward_ldouble":

8
sysdeps/riscv/nofpu/libm-test-ulps
View File

@ -1172,22 +1172,18 @@ ldouble: 3
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 1
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1223,22 +1219,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 1
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

8
sysdeps/riscv/rvd/libm-test-ulps
View File

@ -1215,22 +1215,18 @@ ldouble: 4
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 1
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1278,22 +1274,18 @@ ldouble: 2
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 1
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

8
sysdeps/s390/fpu/libm-test-ulps
View File

@ -1216,22 +1216,18 @@ ldouble: 4
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 1
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1276,22 +1272,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 1
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

4
sysdeps/sh/libm-test-ulps
View File

@ -460,11 +460,9 @@ float: 1
Function: "log1p":
double: 1
float: 1
Function: "log1p_towardzero":
double: 2
float: 2
Function: "log2":
double: 2
@ -475,11 +473,9 @@ double: 2
Function: "logp1":
double: 1
float: 1
Function: "logp1_towardzero":
double: 2
float: 2
Function: "pow":
double: 1

8
sysdeps/sparc/fpu/libm-test-ulps
View File

@ -1220,22 +1220,18 @@ ldouble: 4
Function: "log1p":
double: 1
float: 1
ldouble: 3
Function: "log1p_downward":
double: 2
float: 2
ldouble: 3
Function: "log1p_towardzero":
double: 2
float: 2
ldouble: 3
Function: "log1p_upward":
double: 2
float: 2
ldouble: 2
Function: "log2":
@ -1289,22 +1285,18 @@ ldouble: 1
Function: "logp1":
double: 1
float: 1
ldouble: 3
Function: "logp1_downward":
double: 2
float: 2
ldouble: 3
Function: "logp1_towardzero":
double: 2
float: 2
ldouble: 3
Function: "logp1_upward":
double: 2
float: 2
ldouble: 2
Function: "pow":

8
sysdeps/x86_64/fpu/libm-test-ulps
View File

@ -1822,25 +1822,21 @@ ldouble: 6
Function: "log1p":
double: 1
float: 1
float128: 3
ldouble: 2
Function: "log1p_downward":
double: 2
float: 2
float128: 3
ldouble: 4
Function: "log1p_towardzero":
double: 2
float: 2
float128: 3
ldouble: 4
Function: "log1p_upward":
double: 2
float: 2
float128: 2
ldouble: 3
@ -1966,25 +1962,21 @@ float: 3
Function: "logp1":
double: 1
float: 1
float128: 3
ldouble: 2
Function: "logp1_downward":
double: 2
float: 2
float128: 3
ldouble: 4
Function: "logp1_towardzero":
double: 2
float: 2
float128: 3
ldouble: 4
Function: "logp1_upward":
double: 2
float: 2
float128: 2
ldouble: 3