[PATCH 23/23] math: Use tanhf from CORE-MATH
Adhemerval Zanella
adhemerval.zanella@linaro.org
Fri Nov 29 13:17:47 GMT 2024
The CORE-MATH implementation is correctly rounded (for any rounding mode)
and shows slight better performance to the generic tanhf.
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 51.5273 41.0951 20.25%
x86_64v2 47.7021 39.1526 17.92%
x86_64v3 45.0373 34.2737 23.90%
i686 133.9970 83.8596 37.42%
aarch64 (Neoverse) 21.5439 14.7961 31.32%
power10 13.3301 8.4406 36.68%
reciprocal-throughput master patched improvement
x86_64 24.9493 12.8547 48.48%
x86_64v2 20.7051 12.7761 38.29%
x86_64v3 19.2492 11.0851 42.41%
i686 78.6498 29.8211 62.08%
aarch64 (Neoverse) 11.6026 7.11487 38.68%
power10 6.3328 2.8746 54.61%
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>
---
SHARED-FILES | 4 +
sysdeps/aarch64/libm-test-ulps | 4 -
sysdeps/alpha/fpu/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/csky/fpu/libm-test-ulps | 4 -
sysdeps/csky/nofpu/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_tanhf.c | 131 +++++++++++-------
sysdeps/loongarch/lp64/libm-test-ulps | 4 -
sysdeps/m68k/m680x0/fpu/libm-test-ulps | 3 -
sysdeps/microblaze/libm-test-ulps | 1 -
sysdeps/mips/mips32/libm-test-ulps | 4 -
sysdeps/mips/mips64/libm-test-ulps | 4 -
sysdeps/or1k/fpu/libm-test-ulps | 4 -
sysdeps/or1k/nofpu/libm-test-ulps | 4 -
sysdeps/powerpc/fpu/libm-test-ulps | 4 -
sysdeps/powerpc/nofpu/libm-test-ulps | 4 -
sysdeps/riscv/nofpu/libm-test-ulps | 4 -
sysdeps/riscv/rvd/libm-test-ulps | 4 -
sysdeps/s390/fpu/libm-test-ulps | 4 -
sysdeps/sh/libm-test-ulps | 2 -
sysdeps/sparc/fpu/libm-test-ulps | 4 -
sysdeps/x86_64/fpu/libm-test-ulps | 4 -
27 files changed, 82 insertions(+), 144 deletions(-)
diff --git a/SHARED-FILES b/SHARED-FILES
index 3bd4e7fb4a..032c407881 100644
--- a/SHARED-FILES
+++ b/SHARED-FILES
@@ -330,3 +330,7 @@ sysdeps/ieee754/flt-32/e_sinhf.c:
(src/binary32/sinh/sinhf.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_tanhf.c:
+ (src/binary32/tanh/tanhf.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 4545d8236b..ab8f7e830e 100644
--- a/sysdeps/aarch64/libm-test-ulps
+++ b/sysdeps/aarch64/libm-test-ulps
@@ -1549,7 +1549,6 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_advsimd":
@@ -1558,7 +1557,6 @@ float: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_sve":
@@ -1567,12 +1565,10 @@ float: 2
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/alpha/fpu/libm-test-ulps b/sysdeps/alpha/fpu/libm-test-ulps
index d4329e060d..59ae18c412 100644
--- a/sysdeps/alpha/fpu/libm-test-ulps
+++ b/sysdeps/alpha/fpu/libm-test-ulps
@@ -1322,22 +1322,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/arc/fpu/libm-test-ulps b/sysdeps/arc/fpu/libm-test-ulps
index eb8296d736..f11dc58686 100644
--- a/sysdeps/arc/fpu/libm-test-ulps
+++ b/sysdeps/arc/fpu/libm-test-ulps
@@ -1057,19 +1057,15 @@ double: 1
Function: "tanh":
double: 3
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 3
-float: 3
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/arc/nofpu/libm-test-ulps b/sysdeps/arc/nofpu/libm-test-ulps
index 519a174f7a..f549db1801 100644
--- a/sysdeps/arc/nofpu/libm-test-ulps
+++ b/sysdeps/arc/nofpu/libm-test-ulps
@@ -252,7 +252,6 @@ double: 2
Function: "tanh":
double: 2
-float: 2
Function: "tgamma":
double: 9
diff --git a/sysdeps/arm/libm-test-ulps b/sysdeps/arm/libm-test-ulps
index 7be1a7c75b..705b0641f5 100644
--- a/sysdeps/arm/libm-test-ulps
+++ b/sysdeps/arm/libm-test-ulps
@@ -1051,19 +1051,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/csky/fpu/libm-test-ulps b/sysdeps/csky/fpu/libm-test-ulps
index ffc0676765..0e0cc63f07 100644
--- a/sysdeps/csky/fpu/libm-test-ulps
+++ b/sysdeps/csky/fpu/libm-test-ulps
@@ -975,19 +975,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/csky/nofpu/libm-test-ulps b/sysdeps/csky/nofpu/libm-test-ulps
index a7c85db00d..a9f6566e2c 100644
--- a/sysdeps/csky/nofpu/libm-test-ulps
+++ b/sysdeps/csky/nofpu/libm-test-ulps
@@ -1006,19 +1006,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/hppa/fpu/libm-test-ulps b/sysdeps/hppa/fpu/libm-test-ulps
index 0fbb2f81bb..ea344c2f6c 100644
--- a/sysdeps/hppa/fpu/libm-test-ulps
+++ b/sysdeps/hppa/fpu/libm-test-ulps
@@ -1084,19 +1084,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps
index 26101c933e..3f00faf29f 100644
--- a/sysdeps/i386/fpu/libm-test-ulps
+++ b/sysdeps/i386/fpu/libm-test-ulps
@@ -1613,25 +1613,21 @@ ldouble: 2
Function: "tanh":
double: 2
-float: 2
float128: 2
ldouble: 3
Function: "tanh_downward":
double: 3
-float: 3
float128: 4
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
float128: 3
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
float128: 3
ldouble: 4
diff --git a/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps b/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps
index 92e821d609..af9ac1cf1c 100644
--- a/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps
+++ b/sysdeps/i386/i686/fpu/multiarch/libm-test-ulps
@@ -1618,25 +1618,21 @@ ldouble: 2
Function: "tanh":
double: 2
-float: 2
float128: 2
ldouble: 3
Function: "tanh_downward":
double: 3
-float: 3
float128: 4
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
float128: 3
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
float128: 3
ldouble: 4
diff --git a/sysdeps/ieee754/flt-32/s_tanhf.c b/sysdeps/ieee754/flt-32/s_tanhf.c
index 2c12f04569..b7273d9724 100644
--- a/sysdeps/ieee754/flt-32/s_tanhf.c
+++ b/sysdeps/ieee754/flt-32/s_tanhf.c
@@ -1,63 +1,88 @@
-/* s_tanhf.c -- float version of s_tanh.c.
- */
+/* Correctly-rounded hyperbolic tangent 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) 2022-2024 Alexei Sibidanov.
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: s_tanhf.c,v 1.4 1995/05/10 20:48:24 jtc Exp $";
-#endif
+The original version of this file was copied from the CORE-MATH
+project (file src/binary32/tanh/tanhf.c, revision bc385c2).
-#include <float.h>
-#include <math.h>
-#include <math_private.h>
-#include <math-underflow.h>
-#include <libm-alias-float.h>
+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:
-static const float one=1.0, two=2.0, tiny = 1.0e-30;
-
-float __tanhf(float x)
-{
- float t,z;
- int32_t jx,ix;
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
- GET_FLOAT_WORD(jx,x);
- ix = jx&0x7fffffff;
+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.
+*/
- /* x is INF or NaN */
- if(ix>=0x7f800000) {
- if (jx>=0) return one/x+one; /* tanh(+-inf)=+-1 */
- else return one/x-one; /* tanh(NaN) = NaN */
- }
+#include <math.h>
+#include <stdint.h>
+#include <libm-alias-float.h>
+#include "math_config.h"
- /* |x| < 22 */
- if (ix < 0x41b00000) { /* |x|<22 */
- if (ix == 0)
- return x; /* x == +-0 */
- if (ix<0x24000000) /* |x|<2**-55 */
- {
- math_check_force_underflow (x);
- return x*(one+x); /* tanh(small) = small */
- }
- if (ix>=0x3f800000) { /* |x|>=1 */
- t = __expm1f(two*fabsf(x));
- z = one - two/(t+two);
- } else {
- t = __expm1f(-two*fabsf(x));
- z= -t/(t+two);
- }
- /* |x| > 22, return +-1 */
- } else {
- z = one - tiny; /* raised inexact flag */
+float
+__tanhf (float x)
+{
+ double z = x;
+ uint32_t ux = asuint (x);
+ int e = (ux >> 23) & 0xff;
+ if (__glibc_unlikely (e == 0xff))
+ {
+ if (ux << 9)
+ return x + x; /* nan */
+ static const float ir[] = { 1.0f, -1.0f };
+ return ir[ux >> 31]; /* +-inf */
+ }
+ if (__glibc_unlikely (e < 115))
+ {
+ if (__glibc_unlikely (e < 102))
+ {
+ if (__glibc_unlikely ((ux << 1) == 0))
+ return x;
+ return fmaf (-x, fabsf (x), x);
}
- return (jx>=0)? z: -z;
+ float x2 = x * x;
+ return fmaf (x, -0x1.555556p-2f * x2, x);
+ }
+ if ((ux << 1) > (0x41102cb3u << 1))
+ return copysignf (1.0f, x) - copysignf (0x1p-25f, x);
+ double z2 = z * z, z4 = z2 * z2, z8 = z4 * z4;
+ static const double cn[] =
+ {
+ 0x1p+0, 0x1.30877b8b72d33p-3, 0x1.694aa09ae9e5ep-8,
+ 0x1.4101377abb729p-14, 0x1.e0392b1db0018p-22, 0x1.2533756e546f7p-30,
+ 0x1.d62e5abe6ae8ap-41, 0x1.b06be534182dep-54
+ };
+ static const double cd[] =
+ {
+ 0x1p+0, 0x1.ed99131b0ebeap-2, 0x1.0d27ed6c95a69p-5,
+ 0x1.7cbdaca0e9fccp-11, 0x1.b4e60b892578ep-18, 0x1.a6f707c5c71abp-26,
+ 0x1.35a8b6e2cd94cp-35, 0x1.ca8230677aa01p-47
+ };
+ double n0 = cn[0] + z2 * cn[1];
+ double n2 = cn[2] + z2 * cn[3];
+ double n4 = cn[4] + z2 * cn[5];
+ double n6 = cn[6] + z2 * cn[7];
+ n0 += z4 * n2;
+ n4 += z4 * n6;
+ n0 += z8 * n4;
+ double d0 = cd[0] + z2 * cd[1];
+ double d2 = cd[2] + z2 * cd[3];
+ double d4 = cd[4] + z2 * cd[5];
+ double d6 = cd[6] + z2 * cd[7];
+ d0 += z4 * d2;
+ d4 += z4 * d6;
+ d0 += z8 * d4;
+ double r = z * n0 / d0;
+ return r;
}
libm_alias_float (__tanh, tanh)
diff --git a/sysdeps/loongarch/lp64/libm-test-ulps b/sysdeps/loongarch/lp64/libm-test-ulps
index 1a9ef3c217..a5a8850929 100644
--- a/sysdeps/loongarch/lp64/libm-test-ulps
+++ b/sysdeps/loongarch/lp64/libm-test-ulps
@@ -1329,22 +1329,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/m68k/m680x0/fpu/libm-test-ulps b/sysdeps/m68k/m680x0/fpu/libm-test-ulps
index 7b3e67efaf..573cfdd45a 100644
--- a/sysdeps/m68k/m680x0/fpu/libm-test-ulps
+++ b/sysdeps/m68k/m680x0/fpu/libm-test-ulps
@@ -1160,15 +1160,12 @@ double: 1
Function: "tanh_downward":
double: 1
-float: 1
Function: "tanh_towardzero":
double: 1
-float: 1
Function: "tanh_upward":
double: 1
-float: 1
Function: "tgamma":
double: 3
diff --git a/sysdeps/microblaze/libm-test-ulps b/sysdeps/microblaze/libm-test-ulps
index c9fc2aa5aa..f7eac16221 100644
--- a/sysdeps/microblaze/libm-test-ulps
+++ b/sysdeps/microblaze/libm-test-ulps
@@ -234,7 +234,6 @@ double: 2
Function: "tanh":
double: 2
-float: 2
Function: "tgamma":
double: 5
diff --git a/sysdeps/mips/mips32/libm-test-ulps b/sysdeps/mips/mips32/libm-test-ulps
index 2155853acf..418887d215 100644
--- a/sysdeps/mips/mips32/libm-test-ulps
+++ b/sysdeps/mips/mips32/libm-test-ulps
@@ -1054,19 +1054,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/mips/mips64/libm-test-ulps b/sysdeps/mips/mips64/libm-test-ulps
index c4dfef0b23..fb2689efb7 100644
--- a/sysdeps/mips/mips64/libm-test-ulps
+++ b/sysdeps/mips/mips64/libm-test-ulps
@@ -1340,22 +1340,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/or1k/fpu/libm-test-ulps b/sysdeps/or1k/fpu/libm-test-ulps
index f352f71c7d..1acfd0fcaf 100644
--- a/sysdeps/or1k/fpu/libm-test-ulps
+++ b/sysdeps/or1k/fpu/libm-test-ulps
@@ -988,19 +988,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/or1k/nofpu/libm-test-ulps b/sysdeps/or1k/nofpu/libm-test-ulps
index a69026e9ee..d0a00f9de1 100644
--- a/sysdeps/or1k/nofpu/libm-test-ulps
+++ b/sysdeps/or1k/nofpu/libm-test-ulps
@@ -978,19 +978,15 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_downward":
double: 3
-float: 3
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tanh_upward":
double: 3
-float: 3
Function: "tgamma":
double: 9
diff --git a/sysdeps/powerpc/fpu/libm-test-ulps b/sysdeps/powerpc/fpu/libm-test-ulps
index 210ea0a26b..4d22d956cd 100644
--- a/sysdeps/powerpc/fpu/libm-test-ulps
+++ b/sysdeps/powerpc/fpu/libm-test-ulps
@@ -1721,25 +1721,21 @@ ldouble: 3
Function: "tanh":
double: 2
-float: 2
float128: 2
ldouble: 1
Function: "tanh_downward":
double: 3
-float: 3
float128: 4
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
float128: 3
ldouble: 4
Function: "tanh_upward":
double: 3
-float: 3
float128: 3
ldouble: 6
diff --git a/sysdeps/powerpc/nofpu/libm-test-ulps b/sysdeps/powerpc/nofpu/libm-test-ulps
index c2a0a64d50..244345f934 100644
--- a/sysdeps/powerpc/nofpu/libm-test-ulps
+++ b/sysdeps/powerpc/nofpu/libm-test-ulps
@@ -1456,22 +1456,18 @@ ldouble: 3
Function: "tanh":
double: 2
-float: 2
ldouble: 1
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 4
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 6
Function: "tgamma":
diff --git a/sysdeps/riscv/nofpu/libm-test-ulps b/sysdeps/riscv/nofpu/libm-test-ulps
index b29beefdba..22041cf093 100644
--- a/sysdeps/riscv/nofpu/libm-test-ulps
+++ b/sysdeps/riscv/nofpu/libm-test-ulps
@@ -1269,22 +1269,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/riscv/rvd/libm-test-ulps b/sysdeps/riscv/rvd/libm-test-ulps
index b78c11ec09..511d6a3b90 100644
--- a/sysdeps/riscv/rvd/libm-test-ulps
+++ b/sysdeps/riscv/rvd/libm-test-ulps
@@ -1327,22 +1327,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/s390/fpu/libm-test-ulps b/sysdeps/s390/fpu/libm-test-ulps
index 2beaf10dc4..528d1ade6e 100644
--- a/sysdeps/s390/fpu/libm-test-ulps
+++ b/sysdeps/s390/fpu/libm-test-ulps
@@ -1326,22 +1326,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/sh/libm-test-ulps b/sysdeps/sh/libm-test-ulps
index 002218c7fa..783ee44a7b 100644
--- a/sysdeps/sh/libm-test-ulps
+++ b/sysdeps/sh/libm-test-ulps
@@ -488,11 +488,9 @@ double: 1
Function: "tanh":
double: 2
-float: 2
Function: "tanh_towardzero":
double: 2
-float: 2
Function: "tgamma":
double: 9
diff --git a/sysdeps/sparc/fpu/libm-test-ulps b/sysdeps/sparc/fpu/libm-test-ulps
index 72ecefff12..dbafba668e 100644
--- a/sysdeps/sparc/fpu/libm-test-ulps
+++ b/sysdeps/sparc/fpu/libm-test-ulps
@@ -1340,22 +1340,18 @@ ldouble: 1
Function: "tanh":
double: 2
-float: 2
ldouble: 2
Function: "tanh_downward":
double: 3
-float: 3
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
ldouble: 3
Function: "tgamma":
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 038622d624..7df7b51a3f 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -2140,25 +2140,21 @@ float: 2
Function: "tanh":
double: 2
-float: 2
float128: 2
ldouble: 3
Function: "tanh_downward":
double: 3
-float: 3
float128: 4
ldouble: 4
Function: "tanh_towardzero":
double: 2
-float: 2
float128: 3
ldouble: 3
Function: "tanh_upward":
double: 3
-float: 3
float128: 3
ldouble: 4
--
2.43.0
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