From: Adhemerval Zanella Date: Fri, 18 Oct 2024 19:04:30 +0000 (-0300) Subject: math: Use acosf from CORE-MATH X-Git-Tag: glibc-2.41~303 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66fa7ad437affc64b3a81332d750e6f998b2e343;p=thirdparty%2Fglibc.git math: Use acosf from CORE-MATH The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows slight better performance to the generic acosf. 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 (Neoverse-N1, gcc 13.3.1), and powerpc (POWER10, gcc 13.2.1): Latency master patched improvement x86_64 52.5098 36.6312 30.24% x86_64v2 53.0217 37.3091 29.63% x86_64v3 42.8501 32.3977 24.39% i686 207.3960 109.4000 47.25% aarch64 21.3694 13.7871 35.48% power10 14.5542 7.2891 49.92% reciprocal-throughput master patched improvement x86_64 14.1487 15.9508 -12.74% x86_64v2 14.3293 16.1899 -12.98% x86_64v3 13.6563 12.6161 7.62% i686 158.4060 45.7354 71.13% aarch64 12.5515 9.19233 26.76% power10 5.7868 3.3487 42.13% Signed-off-by: Alexei Sibidanov Signed-off-by: Paul Zimmermann Signed-off-by: Adhemerval Zanella Reviewed-by: DJ Delorie --- diff --git a/SHARED-FILES b/SHARED-FILES index 9f4de81b66..3d32f0f3b6 100644 --- a/SHARED-FILES +++ b/SHARED-FILES @@ -294,3 +294,7 @@ sysdeps/ieee754/flt-32/s_tanf.c: functions to handle errno, overflow, and underflow. It was changed to use an internal wrapper for 128 bit unsigned integer operations for ABIs that do not support the type natively. +sysdeps/ieee754/flt-32/e_acosf.c: + (src/binary32/acos/acosf.c in CORE-MATH) + - The code was adapted to use glibc code style and internal + functions to handle errno, overflow, and underflow. diff --git a/sysdeps/aarch64/libm-test-ulps b/sysdeps/aarch64/libm-test-ulps index 169f944d89..a925a3834c 100644 --- a/sysdeps/aarch64/libm-test-ulps +++ b/sysdeps/aarch64/libm-test-ulps @@ -3,7 +3,6 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_advsimd": @@ -12,7 +11,6 @@ float: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_sve": @@ -21,12 +19,10 @@ float: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/alpha/fpu/libm-test-ulps b/sysdeps/alpha/fpu/libm-test-ulps index 0f7628b75b..aac2e31951 100644 --- a/sysdeps/alpha/fpu/libm-test-ulps +++ b/sysdeps/alpha/fpu/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/arc/fpu/libm-test-ulps b/sysdeps/arc/fpu/libm-test-ulps index 4d4b22db47..b80f97b5ed 100644 --- a/sysdeps/arc/fpu/libm-test-ulps +++ b/sysdeps/arc/fpu/libm-test-ulps @@ -3,19 +3,15 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 3 diff --git a/sysdeps/arc/nofpu/libm-test-ulps b/sysdeps/arc/nofpu/libm-test-ulps index 4faf784aad..de1fdd9b1e 100644 --- a/sysdeps/arc/nofpu/libm-test-ulps +++ b/sysdeps/arc/nofpu/libm-test-ulps @@ -3,7 +3,6 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/arm/libm-test-ulps b/sysdeps/arm/libm-test-ulps index 38bae47855..25c06306cd 100644 --- a/sysdeps/arm/libm-test-ulps +++ b/sysdeps/arm/libm-test-ulps @@ -3,19 +3,15 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/csky/fpu/libm-test-ulps b/sysdeps/csky/fpu/libm-test-ulps index d67cfe1785..3e7b07e81a 100644 --- a/sysdeps/csky/fpu/libm-test-ulps +++ b/sysdeps/csky/fpu/libm-test-ulps @@ -2,19 +2,15 @@ # Maximal error of functions: Function: "acos": -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/csky/nofpu/libm-test-ulps b/sysdeps/csky/nofpu/libm-test-ulps index 6cdf9fd034..58bd5eaa15 100644 --- a/sysdeps/csky/nofpu/libm-test-ulps +++ b/sysdeps/csky/nofpu/libm-test-ulps @@ -2,19 +2,15 @@ # Maximal error of functions: Function: "acos": -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/hppa/fpu/libm-test-ulps b/sysdeps/hppa/fpu/libm-test-ulps index 99185bc138..629fb5b414 100644 --- a/sysdeps/hppa/fpu/libm-test-ulps +++ b/sysdeps/hppa/fpu/libm-test-ulps @@ -3,19 +3,15 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/i386/fpu/e_acosf.S b/sysdeps/i386/fpu/e_acosf.S deleted file mode 100644 index 435dcd9f67..0000000000 --- a/sysdeps/i386/fpu/e_acosf.S +++ /dev/null @@ -1,23 +0,0 @@ -/* - * Public domain. - */ - -#include -#include - -RCSID("$NetBSD: $") - -/* acos = atan (sqrt(1 - x^2) / x) */ -ENTRY(__ieee754_acosf) - flds 4(%esp) /* x */ - fld %st - fmul %st(0) /* x^2 */ - fld1 - fsubp /* 1 - x^2 */ - fsqrt /* sqrt (1 - x^2) */ - fabs - fxch %st(1) - fpatan - ret -END (__ieee754_acosf) -libm_alias_finite (__ieee754_acosf, __acosf) diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps index 020c928339..f9c341111d 100644 --- a/sysdeps/i386/fpu/libm-test-ulps +++ b/sysdeps/i386/fpu/libm-test-ulps @@ -47,13 +47,13 @@ ldouble: 1 Function: "acospi_downward": double: 1 -float: 1 +float: 2 float128: 1 ldouble: 3 Function: "acospi_towardzero": double: 1 -float: 1 +float: 2 float128: 1 ldouble: 3 diff --git a/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps b/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps index 542e1d973a..e4f9bfe15d 100644 --- a/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps +++ b/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps @@ -47,13 +47,13 @@ ldouble: 1 Function: "acospi_downward": double: 1 -float: 1 +float: 2 float128: 1 ldouble: 3 Function: "acospi_towardzero": double: 1 -float: 1 +float: 2 float128: 1 ldouble: 3 diff --git a/sysdeps/ieee754/flt-32/e_acosf.c b/sysdeps/ieee754/flt-32/e_acosf.c index e3b3bbc928..cba01221dc 100644 --- a/sysdeps/ieee754/flt-32/e_acosf.c +++ b/sysdeps/ieee754/flt-32/e_acosf.c @@ -1,78 +1,139 @@ -/* e_acosf.c -- float version of e_acos.c. - */ +/* Correctly-rounded arc-cosine 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. +The original version of this file was copied from the CORE-MATH +project (file src/binary32/acos/acosf.c, revision 61d7bef). + +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 #include #include #include +#include "math_config.h" -static const float -one = 1.0000000000e+00, /* 0x3F800000 */ -pi = 3.1415925026e+00, /* 0x40490fda */ -pio2_hi = 1.5707962513e+00, /* 0x3fc90fda */ -pio2_lo = 7.5497894159e-08, /* 0x33a22168 */ -pS0 = 1.6666667163e-01, /* 0x3e2aaaab */ -pS1 = -3.2556581497e-01, /* 0xbea6b090 */ -pS2 = 2.0121252537e-01, /* 0x3e4e0aa8 */ -pS3 = -4.0055535734e-02, /* 0xbd241146 */ -pS4 = 7.9153501429e-04, /* 0x3a4f7f04 */ -pS5 = 3.4793309169e-05, /* 0x3811ef08 */ -qS1 = -2.4033949375e+00, /* 0xc019d139 */ -qS2 = 2.0209457874e+00, /* 0x4001572d */ -qS3 = -6.8828397989e-01, /* 0xbf303361 */ -qS4 = 7.7038154006e-02; /* 0x3d9dc62e */ +static __attribute__ ((noinline)) float +as_special (float x) +{ + const float pih = 0x1.921fb6p+1; + const float pil = -0x1p-24f; + uint32_t t = asuint (x); + if (t == (0x7fu << 23)) + return 0.0f; /* x=1 */ + if (t == (0x17fu << 23)) + return pih + pil; /* x=-1 */ + uint32_t ax = t << 1; + if (ax > (0xffu << 24)) + return x + x; /* nan */ + return __math_invalidf (0.0); +} + +static inline double +poly12 (double z, const double *c) +{ + double z2 = z * z, z4 = z2 * z2; + double c0 = c[0] + z * c[1]; + double c2 = c[2] + z * c[3]; + double c4 = c[4] + z * c[5]; + double c6 = c[6] + z * c[7]; + double c8 = c[8] + z * c[9]; + double c10 = c[10] + z * c[11]; + c0 += c2 * z2; + c4 += c6 * z2; + c8 += z2 * c10; + c0 += z4 * (c4 + z4 * c8); + return c0; +} float -__ieee754_acosf(float x) +__ieee754_acosf (float x) { - float z,p,q,r,w,s,c,df; - int32_t hx,ix; - GET_FLOAT_WORD(hx,x); - ix = hx&0x7fffffff; - if(ix==0x3f800000) { /* |x|==1 */ - if(hx>0) return 0.0; /* acos(1) = 0 */ - else return pi+(float)2.0*pio2_lo; /* acos(-1)= pi */ - } else if(ix>0x3f800000) { /* |x| >= 1 */ - return (x-x)/(x-x); /* acos(|x|>1) is NaN */ - } - if(ix<0x3f000000) { /* |x| < 0.5 */ - if(ix<=0x32800000) return pio2_hi+pio2_lo;/*if|x|<=2**-26*/ - z = x*x; - p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); - q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); - r = p/q; - return pio2_hi - (x - (pio2_lo-x*r)); - } else if (hx<0) { /* x < -0.5 */ - z = (one+x)*(float)0.5; - p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); - q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); - s = sqrtf(z); - r = p/q; - w = r*s-pio2_lo; - return pi - (float)2.0*(s+w); - } else { /* x > 0.5 */ - int32_t idf; - z = (one-x)*(float)0.5; - s = sqrtf(z); - df = s; - GET_FLOAT_WORD(idf,df); - SET_FLOAT_WORD(df,idf&0xfffff000); - c = (z-df*df)/(s+df); - p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5))))); - q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4))); - r = p/q; - w = r*s+c; - return (float)2.0*(df+w); - } + const double pi2 = 0x1.921fb54442d18p+0; + static const double o[] = { 0, 0x1.921fb54442d18p+1 }; + double xs = x; + double r; + uint32_t t = asuint (x); + uint32_t ax = t << 1; + if (__glibc_unlikely (ax >= 0x7f<<24)) + return as_special (x); + if (__glibc_likely (ax < 0x7ec2a1dcu)) /* |x| < 0x1.c2a1dcp-1 */ + { + static const double b[] = + { + 0x1.fffffffd9ccb8p-1, 0x1.5555c94838007p-3, 0x1.32ded4b7c20fap-4, + 0x1.8566df703309ep-5, -0x1.980c959bec9a3p-6, 0x1.56fbb04998344p-1, + -0x1.403d8e4c49f52p+2, 0x1.b06c3e9f311eap+4, -0x1.9ea97c4e2c21fp+6, + 0x1.200b8261cc61bp+8, -0x1.2274c2799a5c7p+9, 0x1.a558a59cc19d3p+9, + -0x1.aca4b6a529ffp+9, 0x1.228744703f813p+9, -0x1.d7dbb0b322228p+7, + 0x1.5c2018c0c0105p+5 + }; + /* Avoid spurious underflow exception. */ + if (__glibc_unlikely (ax <= 0x40000000u)) /* |x| < 2^-63 */ + return (float) pi2; + double z = xs; + double z2 = z * z; + double z4 = z2 * z2; + double z8 = z4 * z4; + double z16 = z8 * z8; + r = z * ((((b[0] + z2 * b[1]) + z4 * (b[2] + z2 * b[3])) + + z8 * ((b[4] + z2 * b[5]) + z4 * (b[6] + z2 * b[7]))) + + z16 * (((b[8] + z2 * b[9]) + z4 * (b[10] + z2 * b[11])) + + z8 + * ((b[12] + z2 * b[13])+ z4 * (b[14] + z2 * b[15])))); + float ub = 0x1.921fb54574191p+0 - r; + float lb = 0x1.921fb543118ap+0 - r; + if (ub == lb) + return ub; + } + /* accurate path */ + if (ax < (0x7eu << 24)) + { + static const double c[] = + { + 0x1.555555555529cp-3, 0x1.333333337e0ddp-4, 0x1.6db6db3b4465ep-5, + 0x1.f1c72e13ac306p-6, 0x1.6e89cebe06bc4p-6, 0x1.1c6dcf5289094p-6, + 0x1.c6dbbcc7c6315p-7, 0x1.8f8dc2615e996p-7, 0x1.a5833b7bf15e8p-8, + 0x1.43f44ace1665cp-6, -0x1.0fb17df881c73p-6, 0x1.07520c026b2d6p-5 + }; + if (t == 0x328885a3u) + return 0x1.921fb6p+0f + 0x1p-25; + if (t == 0x39826222u) + return 0x1.920f6ap+0f + 0x1p-25; + double x2 = xs * xs; + r = (pi2 - xs) - (xs * x2) * poly12 (x2, c); + } + else + { + static const double c[] = + { + 0x1.6a09e667f3bcbp+0, 0x1.e2b7dddff2db9p-4, 0x1.b27247ab42dbcp-6, + 0x1.02995cc4e0744p-7, 0x1.5ffb0276ec8eap-9, 0x1.033885a928decp-10, + 0x1.911f2be23f8c7p-12, 0x1.4c3c55d2437fdp-13, 0x1.af477e1d7b461p-15, + 0x1.abd6bdff67dcbp-15, -0x1.1717e86d0fa28p-16, 0x1.6ff526de46023p-16 + }; + double bx = fabs (xs); + double z = 1.0 - bx; + double s = copysign (sqrt (z), xs); + r = o[t >> 31] + s * poly12 (z, c); + } + return r; } libm_alias_finite (__ieee754_acosf, __acosf) diff --git a/sysdeps/loongarch/lp64/libm-test-ulps b/sysdeps/loongarch/lp64/libm-test-ulps index 03fa6a410a..67bf2d2f9f 100644 --- a/sysdeps/loongarch/lp64/libm-test-ulps +++ b/sysdeps/loongarch/lp64/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/microblaze/libm-test-ulps b/sysdeps/microblaze/libm-test-ulps index c96652a022..c93ebfa21b 100644 --- a/sysdeps/microblaze/libm-test-ulps +++ b/sysdeps/microblaze/libm-test-ulps @@ -2,7 +2,6 @@ # Maximal error of functions: Function: "acos": -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/mips/mips32/libm-test-ulps b/sysdeps/mips/mips32/libm-test-ulps index 17034d44ba..d23762642b 100644 --- a/sysdeps/mips/mips32/libm-test-ulps +++ b/sysdeps/mips/mips32/libm-test-ulps @@ -3,19 +3,15 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/mips/mips64/libm-test-ulps b/sysdeps/mips/mips64/libm-test-ulps index a757f69a9a..aece335d6b 100644 --- a/sysdeps/mips/mips64/libm-test-ulps +++ b/sysdeps/mips/mips64/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/or1k/fpu/libm-test-ulps b/sysdeps/or1k/fpu/libm-test-ulps index 115a73ef26..862ab6b559 100644 --- a/sysdeps/or1k/fpu/libm-test-ulps +++ b/sysdeps/or1k/fpu/libm-test-ulps @@ -3,19 +3,15 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/or1k/nofpu/libm-test-ulps b/sysdeps/or1k/nofpu/libm-test-ulps index be6e12d8ac..27ddaf0510 100644 --- a/sysdeps/or1k/nofpu/libm-test-ulps +++ b/sysdeps/or1k/nofpu/libm-test-ulps @@ -3,19 +3,15 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 Function: "acos_downward": double: 1 -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acos_upward": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/powerpc/fpu/libm-test-ulps b/sysdeps/powerpc/fpu/libm-test-ulps index e5c93a9a8d..6e0a9de7bb 100644 --- a/sysdeps/powerpc/fpu/libm-test-ulps +++ b/sysdeps/powerpc/fpu/libm-test-ulps @@ -3,25 +3,21 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 float128: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 float128: 1 ldouble: 3 Function: "acos_towardzero": double: 1 -float: 1 float128: 1 ldouble: 3 Function: "acos_upward": double: 1 -float: 1 float128: 1 ldouble: 2 diff --git a/sysdeps/powerpc/nofpu/libm-test-ulps b/sysdeps/powerpc/nofpu/libm-test-ulps index 2c44e39c2c..44cf9983dc 100644 --- a/sysdeps/powerpc/nofpu/libm-test-ulps +++ b/sysdeps/powerpc/nofpu/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 3 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 3 Function: "acos_upward": double: 1 -float: 1 ldouble: 2 Function: "acosh": diff --git a/sysdeps/riscv/nofpu/libm-test-ulps b/sysdeps/riscv/nofpu/libm-test-ulps index 84b9e15f43..8d3b048e84 100644 --- a/sysdeps/riscv/nofpu/libm-test-ulps +++ b/sysdeps/riscv/nofpu/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/riscv/rvd/libm-test-ulps b/sysdeps/riscv/rvd/libm-test-ulps index b9446e5a7c..a1d85be3b6 100644 --- a/sysdeps/riscv/rvd/libm-test-ulps +++ b/sysdeps/riscv/rvd/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/s390/fpu/libm-test-ulps b/sysdeps/s390/fpu/libm-test-ulps index 6cbefca228..0d47af49bc 100644 --- a/sysdeps/s390/fpu/libm-test-ulps +++ b/sysdeps/s390/fpu/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/sh/libm-test-ulps b/sysdeps/sh/libm-test-ulps index a6d271eb3f..d1e5b05531 100644 --- a/sysdeps/sh/libm-test-ulps +++ b/sysdeps/sh/libm-test-ulps @@ -2,11 +2,9 @@ # Maximal error of functions: Function: "acos": -float: 1 Function: "acos_towardzero": double: 1 -float: 1 Function: "acosh": double: 2 diff --git a/sysdeps/sparc/fpu/libm-test-ulps b/sysdeps/sparc/fpu/libm-test-ulps index e7bc43f417..fe2d1dd34e 100644 --- a/sysdeps/sparc/fpu/libm-test-ulps +++ b/sysdeps/sparc/fpu/libm-test-ulps @@ -3,22 +3,18 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 ldouble: 1 Function: "acos_downward": double: 1 -float: 1 ldouble: 1 Function: "acos_towardzero": double: 1 -float: 1 ldouble: 1 Function: "acos_upward": double: 1 -float: 1 ldouble: 1 Function: "acosh": diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps index 07cc6cf1e6..f6c19d309d 100644 --- a/sysdeps/x86_64/fpu/libm-test-ulps +++ b/sysdeps/x86_64/fpu/libm-test-ulps @@ -3,25 +3,21 @@ # Maximal error of functions: Function: "acos": double: 1 -float: 1 float128: 1 ldouble: 2 Function: "acos_downward": double: 1 -float: 1 float128: 1 ldouble: 2 Function: "acos_towardzero": double: 1 -float: 1 float128: 1 ldouble: 2 Function: "acos_upward": double: 1 -float: 1 float128: 1 ldouble: 2