From 5fa89852fa12fe56c315a119998affa267200f1b Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Fri, 25 Oct 2024 15:21:47 -0300 Subject: [PATCH] math: Use exp10m1f from CORE-MATH The CORE-MATH implementation is correctly rounded (for any rounding mode) and shows better performance compared to the generic exp10m1f. The code was adapted to glibc style and to use the definition of math_config.h (to handle errno, overflow, and underflow). I mostly fixed some small issues in corner cases (sNaN handling, -INFINITY, a specific overflow check). 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 45.4690 49.5845 -9.05% x86_64v2 46.1604 36.2665 21.43% x86_64v3 37.8442 31.0359 17.99% i686 121.367 93.0079 23.37% aarch64 21.1126 15.0165 28.87% power10 12.7426 8.4929 33.35% reciprocal-throughput master patched improvement x86_64 19.6005 17.4005 11.22% x86_64v2 19.6008 11.1977 42.87% x86_64v3 17.5427 10.2898 41.34% i686 59.4215 60.9675 -2.60% aarch64 13.9814 7.9173 43.37% power10 6.7814 6.4258 5.24% The generic implementation calls __ieee754_exp10f which has an optimized version, although it is not correctly rounded, which is the main culprit of the the latency difference for x86_64 and throughp for i686. Signed-off-by: Alexei Sibidanov Signed-off-by: Paul Zimmermann Signed-off-by: Adhemerval Zanella Reviewed-by: DJ Delorie --- SHARED-FILES | 4 + sysdeps/aarch64/libm-test-ulps | 4 - sysdeps/arc/fpu/libm-test-ulps | 4 - sysdeps/arc/nofpu/libm-test-ulps | 1 - sysdeps/arm/libm-test-ulps | 4 - sysdeps/hppa/fpu/libm-test-ulps | 4 - sysdeps/i386/fpu/libm-test-ulps | 4 - .../i386/i686/fpu/multiarch/libm-test-ulps | 4 - sysdeps/ieee754/flt-32/s_exp10m1f.c | 225 ++++++++++++++++++ sysdeps/loongarch/lp64/libm-test-ulps | 4 - sysdeps/m68k/m680x0/fpu/libm-test-ulps | 4 - sysdeps/mips/mips32/libm-test-ulps | 4 - sysdeps/mips/mips64/libm-test-ulps | 4 - sysdeps/powerpc/fpu/libm-test-ulps | 4 - sysdeps/powerpc/nofpu/libm-test-ulps | 4 - sysdeps/riscv/nofpu/libm-test-ulps | 1 - sysdeps/riscv/rvd/libm-test-ulps | 4 - sysdeps/s390/fpu/libm-test-ulps | 4 - sysdeps/sparc/fpu/libm-test-ulps | 4 - sysdeps/x86_64/fpu/libm-test-ulps | 4 - 20 files changed, 229 insertions(+), 66 deletions(-) create mode 100644 sysdeps/ieee754/flt-32/s_exp10m1f.c diff --git a/SHARED-FILES b/SHARED-FILES index b61540c8f3..8ea383b370 100644 --- a/SHARED-FILES +++ b/SHARED-FILES @@ -240,3 +240,7 @@ sysdeps/ieee754/flt-32/e_gammaf_r.c - replace 0x1p127f * 0x1p127f by math_narrow_eval (x * 0x1p127f) - replace 0x1p-127f * sgn[k&1] by math_narrow_eval (0x1p-127f * sgn[k&1]) - add libm_alias_finite (__ieee754_gammaf_r, __gammaf_r) at the end +sysdeps/ieee754/flt-32/s_exp10m1f.c + (file src/binary32/exp10m1/exp10m1f.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 8c333fcd29..00832393f6 100644 --- a/sysdeps/aarch64/libm-test-ulps +++ b/sysdeps/aarch64/libm-test-ulps @@ -1083,22 +1083,18 @@ ldouble: 3 Function: "exp10m1": double: 4 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 6 Function: "exp10m1_upward": double: 5 -float: 3 ldouble: 6 Function: "exp2": diff --git a/sysdeps/arc/fpu/libm-test-ulps b/sysdeps/arc/fpu/libm-test-ulps index d1665b9b72..4a8ad5142c 100644 --- a/sysdeps/arc/fpu/libm-test-ulps +++ b/sysdeps/arc/fpu/libm-test-ulps @@ -789,19 +789,15 @@ float: 1 Function: "exp10m1": double: 4 -float: 2 Function: "exp10m1_downward": double: 3 -float: 3 Function: "exp10m1_towardzero": double: 2 -float: 3 Function: "exp10m1_upward": double: 5 -float: 3 Function: "exp2": double: 1 diff --git a/sysdeps/arc/nofpu/libm-test-ulps b/sysdeps/arc/nofpu/libm-test-ulps index e768024eb5..4cecea6919 100644 --- a/sysdeps/arc/nofpu/libm-test-ulps +++ b/sysdeps/arc/nofpu/libm-test-ulps @@ -194,7 +194,6 @@ float: 1 Function: "exp10m1": double: 3 -float: 2 Function: "exp2": double: 1 diff --git a/sysdeps/arm/libm-test-ulps b/sysdeps/arm/libm-test-ulps index 21fe98a7bd..bcbe82ca34 100644 --- a/sysdeps/arm/libm-test-ulps +++ b/sysdeps/arm/libm-test-ulps @@ -779,19 +779,15 @@ float: 1 Function: "exp10m1": double: 3 -float: 2 Function: "exp10m1_downward": double: 3 -float: 3 Function: "exp10m1_towardzero": double: 2 -float: 3 Function: "exp10m1_upward": double: 4 -float: 4 Function: "exp2": double: 1 diff --git a/sysdeps/hppa/fpu/libm-test-ulps b/sysdeps/hppa/fpu/libm-test-ulps index 57c1155e8b..3dc1f2f8c3 100644 --- a/sysdeps/hppa/fpu/libm-test-ulps +++ b/sysdeps/hppa/fpu/libm-test-ulps @@ -798,19 +798,15 @@ float: 1 Function: "exp10m1": double: 4 -float: 2 Function: "exp10m1_downward": double: 3 -float: 3 Function: "exp10m1_towardzero": double: 2 -float: 3 Function: "exp10m1_upward": double: 5 -float: 4 Function: "exp2": double: 1 diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps index d13b05a220..96d02334e4 100644 --- a/sysdeps/i386/fpu/libm-test-ulps +++ b/sysdeps/i386/fpu/libm-test-ulps @@ -1155,25 +1155,21 @@ ldouble: 2 Function: "exp10m1": double: 3 -float: 1 float128: 3 ldouble: 4 Function: "exp10m1_downward": double: 3 -float: 3 float128: 6 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 2 float128: 6 ldouble: 5 Function: "exp10m1_upward": double: 5 -float: 3 float128: 6 ldouble: 6 diff --git a/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps b/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps index 0a813aa8dd..c18e2bc8de 100644 --- a/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps +++ b/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps @@ -1158,25 +1158,21 @@ ldouble: 2 Function: "exp10m1": double: 3 -float: 1 float128: 3 ldouble: 4 Function: "exp10m1_downward": double: 3 -float: 3 float128: 6 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 2 float128: 6 ldouble: 5 Function: "exp10m1_upward": double: 5 -float: 3 float128: 6 ldouble: 6 diff --git a/sysdeps/ieee754/flt-32/s_exp10m1f.c b/sysdeps/ieee754/flt-32/s_exp10m1f.c new file mode 100644 index 0000000000..60b8348819 --- /dev/null +++ b/sysdeps/ieee754/flt-32/s_exp10m1f.c @@ -0,0 +1,225 @@ +/* Implementation of the exp10m1 function for binary32. + +Copyright (c) 2022-2024 Alexei Sibidanov. Paul Zimmermann. + +The original version of this file was copied from the CORE-MATH +project (file src/binary32/exp10m1/exp10m1f.c, revision c46b85b). + +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 "math_config.h" +#include + +float +__exp10m1f (float x) +{ + const double iln10h = 0x1.a934f09p+1 * 16; + const double iln10l = 0x1.e68dc57f2496p-29 * 16; + double z = x; + uint32_t ux = asuint (x); + uint32_t ax = ux & (~0u >> 1); + if (__glibc_unlikely (ux > 0xc0f0d2f1u)) + { /* x < -7.52575 */ + if (ax > (0xffu << 23)) + return x + x; /* nan */ + return (ux == 0xff800000) ? -0x1p+0 : -0x1p+0 + 0x1p-26f; + } + else if (__glibc_unlikely (ax > 0x421a209au)) + { /* x > 38.5318 */ + if (ax >= asuint (INFINITY)) + return x + x; /* +Inf or NaN */ + return __math_oflowf (0); + } + else if (__glibc_unlikely (ax < 0x3d89c604u)) + { /* |x| < 0.1549/log(10) */ + double z2 = z * z, r; + if (__glibc_unlikely (ax < 0x3d1622fbu)) + { /* |x| < 8.44e-2/log(10) */ + if (__glibc_unlikely (ax < 0x3c8b76a3u)) + { /* |x| < 3.92e-2/log(10) */ + if (__glibc_unlikely (ax < 0x3bcced04u)) + { /* |x| < 1.44e-2/log(10) */ + if (__glibc_unlikely (ax < 0x3acf33ebu)) + { /* |x| < 3.64e-3/log(10 */ + if (__glibc_unlikely (ax < 0x395a966bu)) + { /* |x| < 4.8e-4/log(10 */ + if (__glibc_unlikely (ax < 0x36fe4a4bu)) + { /* |x| < 1.745e-5/log(10) */ + if (__glibc_unlikely (ax < 0x32407f39u)) + { /* |x| < 2.58e-8/log(10) */ + if (__glibc_unlikely (ax < 0x245e5bd9u)) + { /* |x| < 4.82164e-17 */ + r = 0x1.26bb1bbb55516p+1; + } + else + { + if (__glibc_unlikely (ux == 0x2c994b7bu)) + return 0x1.60f974p-37f - 0x1p-90f; + r = 0x1.26bb1bbb55516p+1 + + z * 0x1.53524c73cea69p+1; + } + } + else + { + if (__glibc_unlikely (ux == 0xb6fa215bu)) + return -0x1.1ff87ep-16 + 0x1p-68; + r = 0x1.26bb1bbb55516p+1 + + z * (0x1.53524c73ea62fp+1 + + z * 0x1.0470591de2c75p+1); + } + } + else + { + static const double cp[] = + { + 0x1.26bb1bbb55515p+1, 0x1.53524c73cea69p+1, + 0x1.0470595038cc2p+1, 0x1.2bd7609fe1561p+0 + }; + r = (cp[0] + z * cp[1]) + + z2 * (cp[2] + z * cp[3]); + } + } + else + { + static const double cp[] = + { + 0x1.26bb1bbb55516p+1, 0x1.53524c73ce6dbp+1, + 0x1.0470591de3024p+1, 0x1.2bd76b79060e6p+0, + 0x1.1429ffd3a963dp-1 + }; + r = (cp[0] + z * cp[1]) + + z2 * (cp[2] + z * (cp[3] + z * cp[4])); + } + } + else + { + static const double cp[] = + { + 0x1.26bb1bbb55516p+1, 0x1.53524c73cea67p+1, + 0x1.0470591dc2953p+1, 0x1.2bd760a004d64p+0, + 0x1.142a85da6f072p-1, 0x1.a7ed70725b00ep-3 + }; + r = (cp[0] + z * cp[1]) + z2 + * ((cp[2] + z * cp[3]) + + z2 * (cp[4] + z * cp[5])); + } + } + else + { + static const double cp[] = + { + 0x1.26bb1bbb55516p+1, 0x1.53524c73ceadep+1, + 0x1.0470591de2bb4p+1, 0x1.2bd76099a9d33p+0, + 0x1.1429ffd829b0bp-1, 0x1.a7f2a6a0f7dc8p-3, + 0x1.16e4dfbce0f56p-4 + }; + r = (cp[0] + z * cp[1]) + + z2 * ((cp[2] + z * cp[3]) + + z2 * (cp[4] + z * (cp[5] + z * cp[6]))); + } + } + else + { + static const double cp[] = + { + 0x1.26bb1bbb55515p+1, 0x1.53524c73cea6ap+1, + 0x1.0470591de476p+1, 0x1.2bd7609fd4ee2p+0, + 0x1.1429ff70a9b48p-1, 0x1.a7ed71259ba5bp-3, + 0x1.16f3004fb3ac1p-4, 0x1.4116b0388aa9fp-6 + }; + r = ((cp[0] + z * cp[1]) + z2 * (cp[2] + z * cp[3])) + + (z2 * z2) * ((cp[4] + z * cp[5]) + z2 * (cp[6] + + z * cp[7])); + } + } + else + { + static const double cp[] = + { + 0x1.26bb1bbb55515p+1, 0x1.53524c73cea42p+1, 0x1.0470591de2d1dp+1, + 0x1.2bd760a010a53p+0, 0x1.1429ffd16170cp-1, 0x1.a7ed6b2a0d97fp-3, + 0x1.16e4e37fa51e4p-4, 0x1.4147fe4c1676fp-6, 0x1.4897c4b3e329ap-8 + }; + r = ((cp[0] + z * cp[1]) + z2 * (cp[2] + z * cp[3])) + + (z2 * z2) * ((cp[4] + z * cp[5]) + + z2 * (cp[6] + z * (cp[7] + z * cp[8]))); + } + r *= z; + return r; + } + else + { + /* -7.52575 < x < -0.1549/log(10) or 0.1549/log(10) < x < 38.5318 */ + static const double tb[] = + { + 0x1p+0, 0x1.0b5586cf9890fp+0, 0x1.172b83c7d517bp+0, + 0x1.2387a6e756238p+0, 0x1.306fe0a31b715p+0, 0x1.3dea64c123422p+0, + 0x1.4bfdad5362a27p+0, 0x1.5ab07dd485429p+0, 0x1.6a09e667f3bcdp+0, + 0x1.7a11473eb0187p+0, 0x1.8ace5422aa0dap+0, 0x1.9c49182a3f09p+0, + 0x1.ae89f995ad3adp+0, 0x1.c199bdd85529cp+0, 0x1.d5818dcfba487p+0, + 0x1.ea4afa2a490dap+0 + }; + static const double c[] = + { + 0x1.62e42fefa398bp-5, 0x1.ebfbdff84555ap-11, 0x1.c6b08d4ad86d3p-17, + 0x1.3b2ad1b1716a2p-23, 0x1.5d7472718ce9dp-30, 0x1.4a1d7f457ac56p-37 + }; + + if (__glibc_unlikely ((ux << 11) == 0)) + { + uint32_t k = (ux >> 21) - 0x1fc; + if (k <= 0xb) + { + if (k == 0) + return 10.0f - 1.0f; + if (k == 4) + return 100.0f - 1.0f; + if (k == 6) + return 1000.0f - 1.0f; + if (k == 8) + return 10000.0f - 1.0f; + if (k == 9) + return 100000.0f - 1.0f; + if (k == 10) + return 1000000.0f - 1.0f; + if (k == 11) + return 10000000.0f - 1.0f; + } + } + double a = iln10h * z; + double ia = floor (a); + double h = (a - ia) + iln10l * z; + int64_t i = ia; + int64_t j = i & 0xf; + int64_t e = i - j; + e >>= 4; + double s = tb[j]; + s *= asdouble ((e + 0x3ffull) << 52); + double h2 = h * h; + double c0 = c[0] + h * c[1]; + double c2 = c[2] + h * c[3]; + double c4 = c[4] + h * c[5]; + c0 += h2 * (c2 + h2 * c4); + double w = s * h; + return (s - 1.0) + w * c0; + } +} +libm_alias_float (__exp10m1, exp10m1) diff --git a/sysdeps/loongarch/lp64/libm-test-ulps b/sysdeps/loongarch/lp64/libm-test-ulps index 75e21ee2a8..de7e526008 100644 --- a/sysdeps/loongarch/lp64/libm-test-ulps +++ b/sysdeps/loongarch/lp64/libm-test-ulps @@ -977,22 +977,18 @@ ldouble: 3 Function: "exp10m1": double: 4 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 6 Function: "exp10m1_upward": double: 5 -float: 3 ldouble: 6 Function: "exp2": diff --git a/sysdeps/m68k/m680x0/fpu/libm-test-ulps b/sysdeps/m68k/m680x0/fpu/libm-test-ulps index 73e98eb479..96cd7b3fd5 100644 --- a/sysdeps/m68k/m680x0/fpu/libm-test-ulps +++ b/sysdeps/m68k/m680x0/fpu/libm-test-ulps @@ -882,19 +882,15 @@ ldouble: 3 Function: "exp10m1": double: 1 -float: 1 Function: "exp10m1_downward": double: 1 -float: 1 Function: "exp10m1_towardzero": double: 1 -float: 1 Function: "exp10m1_upward": double: 3 -float: 1 Function: "exp2": double: 1 diff --git a/sysdeps/mips/mips32/libm-test-ulps b/sysdeps/mips/mips32/libm-test-ulps index cc1600c2ab..829da3ebf1 100644 --- a/sysdeps/mips/mips32/libm-test-ulps +++ b/sysdeps/mips/mips32/libm-test-ulps @@ -779,19 +779,15 @@ float: 1 Function: "exp10m1": double: 3 -float: 2 Function: "exp10m1_downward": double: 3 -float: 3 Function: "exp10m1_towardzero": double: 2 -float: 3 Function: "exp10m1_upward": double: 4 -float: 4 Function: "exp2": double: 1 diff --git a/sysdeps/mips/mips64/libm-test-ulps b/sysdeps/mips/mips64/libm-test-ulps index 88dbb20401..5c7b050b11 100644 --- a/sysdeps/mips/mips64/libm-test-ulps +++ b/sysdeps/mips/mips64/libm-test-ulps @@ -978,22 +978,18 @@ ldouble: 3 Function: "exp10m1": double: 3 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 6 Function: "exp10m1_upward": double: 4 -float: 4 ldouble: 6 Function: "exp2": diff --git a/sysdeps/powerpc/fpu/libm-test-ulps b/sysdeps/powerpc/fpu/libm-test-ulps index dcefbcefcf..30ddbaf05f 100644 --- a/sysdeps/powerpc/fpu/libm-test-ulps +++ b/sysdeps/powerpc/fpu/libm-test-ulps @@ -1186,25 +1186,21 @@ ldouble: 4 Function: "exp10m1": double: 4 -float: 2 float128: 3 ldouble: 4 Function: "exp10m1_downward": double: 3 -float: 3 float128: 6 ldouble: 9 Function: "exp10m1_towardzero": double: 2 -float: 3 float128: 6 ldouble: 9 Function: "exp10m1_upward": double: 5 -float: 3 float128: 6 ldouble: 8 diff --git a/sysdeps/powerpc/nofpu/libm-test-ulps b/sysdeps/powerpc/nofpu/libm-test-ulps index 14be978dc3..e15e1f8fc0 100644 --- a/sysdeps/powerpc/nofpu/libm-test-ulps +++ b/sysdeps/powerpc/nofpu/libm-test-ulps @@ -987,22 +987,18 @@ ldouble: 4 Function: "exp10m1": double: 3 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 9 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 9 Function: "exp10m1_upward": double: 4 -float: 4 ldouble: 10 Function: "exp2": diff --git a/sysdeps/riscv/nofpu/libm-test-ulps b/sysdeps/riscv/nofpu/libm-test-ulps index 4adad138b0..2271e1ee6c 100644 --- a/sysdeps/riscv/nofpu/libm-test-ulps +++ b/sysdeps/riscv/nofpu/libm-test-ulps @@ -974,7 +974,6 @@ ldouble: 3 Function: "exp10m1": double: 2 -float: 1 ldouble: 1 Function: "exp2": diff --git a/sysdeps/riscv/rvd/libm-test-ulps b/sysdeps/riscv/rvd/libm-test-ulps index 07a8794e48..0bc61bf3c8 100644 --- a/sysdeps/riscv/rvd/libm-test-ulps +++ b/sysdeps/riscv/rvd/libm-test-ulps @@ -977,22 +977,18 @@ ldouble: 3 Function: "exp10m1": double: 4 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 6 Function: "exp10m1_upward": double: 5 -float: 3 ldouble: 6 Function: "exp2": diff --git a/sysdeps/s390/fpu/libm-test-ulps b/sysdeps/s390/fpu/libm-test-ulps index 6e4084ae37..860479f3ff 100644 --- a/sysdeps/s390/fpu/libm-test-ulps +++ b/sysdeps/s390/fpu/libm-test-ulps @@ -978,22 +978,18 @@ ldouble: 3 Function: "exp10m1": double: 4 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 6 Function: "exp10m1_upward": double: 5 -float: 3 ldouble: 6 Function: "exp2": diff --git a/sysdeps/sparc/fpu/libm-test-ulps b/sysdeps/sparc/fpu/libm-test-ulps index ccb6c794e7..4d8064b543 100644 --- a/sysdeps/sparc/fpu/libm-test-ulps +++ b/sysdeps/sparc/fpu/libm-test-ulps @@ -978,22 +978,18 @@ ldouble: 3 Function: "exp10m1": double: 3 -float: 2 ldouble: 3 Function: "exp10m1_downward": double: 3 -float: 3 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 ldouble: 6 Function: "exp10m1_upward": double: 4 -float: 4 ldouble: 6 Function: "exp2": diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps index 80d0125642..3f438c2090 100644 --- a/sysdeps/x86_64/fpu/libm-test-ulps +++ b/sysdeps/x86_64/fpu/libm-test-ulps @@ -1431,25 +1431,21 @@ float: 1 Function: "exp10m1": double: 4 -float: 2 float128: 3 ldouble: 4 Function: "exp10m1_downward": double: 3 -float: 3 float128: 6 ldouble: 6 Function: "exp10m1_towardzero": double: 2 -float: 3 float128: 6 ldouble: 5 Function: "exp10m1_upward": double: 5 -float: 4 float128: 6 ldouble: 6