|
 |
190885 |
From 125c5c04cccb16dabf9d0e693df154608289d1dd Mon Sep 17 00:00:00 2001
|
|
|
190885 |
From: Shen-Ta Hsieh <ibmibmibm.tw@gmail.com>
|
|
|
190885 |
Date: Mon, 24 May 2021 09:43:11 +0800
|
|
|
190885 |
Subject: [PATCH] x86_64: roundeven with sse4.1 support
|
|
|
190885 |
|
|
|
190885 |
This patch adds support for the sse4.1 hardware floating point
|
|
|
190885 |
roundeven.
|
|
|
190885 |
|
|
|
190885 |
Here is some benchmark results on my systems:
|
|
|
190885 |
|
|
|
190885 |
=AMD Ryzen 9 3900X 12-Core Processor=
|
|
|
190885 |
|
|
|
190885 |
* benchmark result before this commit
|
|
|
190885 |
| | roundeven | roundevenf |
|
|
|
190885 |
|------------|--------------|--------------|
|
|
|
190885 |
| duration | 3.75587e+09 | 3.75114e+09 |
|
|
|
190885 |
| iterations | 3.93053e+08 | 4.35402e+08 |
|
|
|
190885 |
| max | 52.592 | 58.71 |
|
|
|
190885 |
| min | 7.98 | 7.22 |
|
|
|
190885 |
| mean | 9.55563 | 8.61535 |
|
|
|
190885 |
|
|
|
190885 |
* benchmark result after this commit
|
|
|
190885 |
| | roundeven | roundevenf |
|
|
|
190885 |
|------------|---------------|--------------|
|
|
|
190885 |
| duration | 3.73815e+09 | 3.73738e+09 |
|
|
|
190885 |
| iterations | 5.82692e+08 | 5.91498e+08 |
|
|
|
190885 |
| max | 56.468 | 51.642 |
|
|
|
190885 |
| min | 6.27 | 6.156 |
|
|
|
190885 |
| mean | 6.41532 | 6.3185 |
|
|
|
190885 |
|
|
|
190885 |
=Intel(R) Pentium(R) CPU D1508 @ 2.20GHz=
|
|
|
190885 |
|
|
|
190885 |
* benchmark result before this commit
|
|
|
190885 |
| | roundeven | roundevenf |
|
|
|
190885 |
|------------|--------------|--------------|
|
|
|
190885 |
| duration | 2.18208e+09 | 2.18258e+09 |
|
|
|
190885 |
| iterations | 2.39932e+08 | 2.46924e+08 |
|
|
|
190885 |
| max | 96.378 | 98.035 |
|
|
|
190885 |
| min | 6.776 | 5.94 |
|
|
|
190885 |
| mean | 9.09456 | 8.83907 |
|
|
|
190885 |
|
|
|
190885 |
* benchmark result after this commit
|
|
|
190885 |
| | roundeven | roundevenf |
|
|
|
190885 |
|------------|--------------|--------------|
|
|
|
190885 |
| duration | 2.17415e+09 | 2.17005e+09 |
|
|
|
190885 |
| iterations | 3.56193e+08 | 4.09824e+08 |
|
|
|
190885 |
| max | 51.693 | 97.192 |
|
|
|
190885 |
| min | 5.926 | 5.093 |
|
|
|
190885 |
| mean | 6.10385 | 5.29507 |
|
|
|
190885 |
|
|
|
190885 |
Signed-off-by: Shen-Ta Hsieh <ibmibmibm.tw@gmail.com>
|
|
|
190885 |
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
|
|
|
190885 |
(cherry picked from commit 1683249d17e14827b6579529742eb895027dfa84)
|
|
|
190885 |
---
|
|
|
190885 |
sysdeps/x86_64/fpu/multiarch/Makefile | 5 +--
|
|
|
190885 |
sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c | 2 ++
|
|
|
190885 |
.../x86_64/fpu/multiarch/s_roundeven-sse4_1.S | 24 ++++++++++++++
|
|
|
190885 |
sysdeps/x86_64/fpu/multiarch/s_roundeven.c | 31 +++++++++++++++++++
|
|
|
190885 |
sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c | 3 ++
|
|
|
190885 |
.../fpu/multiarch/s_roundevenf-sse4_1.S | 24 ++++++++++++++
|
|
|
190885 |
sysdeps/x86_64/fpu/multiarch/s_roundevenf.c | 31 +++++++++++++++++++
|
|
|
190885 |
7 files changed, 118 insertions(+), 2 deletions(-)
|
|
|
190885 |
create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c
|
|
|
190885 |
create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S
|
|
|
190885 |
create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundeven.c
|
|
|
190885 |
create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c
|
|
|
190885 |
create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S
|
|
|
190885 |
create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundevenf.c
|
|
|
190885 |
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
|
|
|
190885 |
index 9f387248..6ddd1c01 100644
|
|
|
190885 |
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
|
|
|
190885 |
@@ -1,11 +1,12 @@
|
|
|
190885 |
ifeq ($(subdir),math)
|
|
|
190885 |
libm-sysdep_routines += s_floor-c s_ceil-c s_floorf-c s_ceilf-c \
|
|
|
190885 |
s_rint-c s_rintf-c s_nearbyint-c s_nearbyintf-c \
|
|
|
190885 |
- s_trunc-c s_truncf-c
|
|
|
190885 |
+ s_roundeven-c s_roundevenf-c s_trunc-c s_truncf-c
|
|
|
190885 |
|
|
|
190885 |
libm-sysdep_routines += s_ceil-sse4_1 s_ceilf-sse4_1 s_floor-sse4_1 \
|
|
|
190885 |
s_floorf-sse4_1 s_nearbyint-sse4_1 \
|
|
|
190885 |
- s_nearbyintf-sse4_1 s_rint-sse4_1 s_rintf-sse4_1 \
|
|
|
190885 |
+ s_nearbyintf-sse4_1 s_roundeven-sse4_1 \
|
|
|
190885 |
+ s_roundevenf-sse4_1 s_rint-sse4_1 s_rintf-sse4_1 \
|
|
|
190885 |
s_trunc-sse4_1 s_truncf-sse4_1
|
|
|
190885 |
|
|
|
190885 |
libm-sysdep_routines += e_exp-fma e_log-fma e_pow-fma s_atan-fma \
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c b/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c
|
|
|
190885 |
new file mode 100644
|
|
|
190885 |
index 00000000..c7be43cb
|
|
|
190885 |
--- /dev/null
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c
|
|
|
190885 |
@@ -0,0 +1,2 @@
|
|
|
190885 |
+#define __roundeven __roundeven_c
|
|
|
190885 |
+#include <sysdeps/ieee754/dbl-64/s_roundeven.c>
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S
|
|
|
190885 |
new file mode 100644
|
|
|
190885 |
index 00000000..6ae8f6b1
|
|
|
190885 |
--- /dev/null
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S
|
|
|
190885 |
@@ -0,0 +1,24 @@
|
|
|
190885 |
+/* Copyright (C) 2021 Free Software Foundation, Inc.
|
|
|
190885 |
+ This file is part of the GNU C Library.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
190885 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
190885 |
+ License as published by the Free Software Foundation; either
|
|
|
190885 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
190885 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
190885 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
190885 |
+ Lesser General Public License for more details.
|
|
|
190885 |
+
|
|
|
190885 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
190885 |
+ License along with the GNU C Library; if not, see
|
|
|
190885 |
+ <https://www.gnu.org/licenses/>. */
|
|
|
190885 |
+
|
|
|
190885 |
+#include <sysdep.h>
|
|
|
190885 |
+
|
|
|
190885 |
+ .section .text.sse4.1,"ax",@progbits
|
|
|
190885 |
+ENTRY(__roundeven_sse41)
|
|
|
190885 |
+ roundsd $8, %xmm0, %xmm0
|
|
|
190885 |
+ ret
|
|
|
190885 |
+END(__roundeven_sse41)
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven.c b/sysdeps/x86_64/fpu/multiarch/s_roundeven.c
|
|
|
190885 |
new file mode 100644
|
|
|
190885 |
index 00000000..d92eda65
|
|
|
190885 |
--- /dev/null
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven.c
|
|
|
190885 |
@@ -0,0 +1,31 @@
|
|
|
190885 |
+/* Multiple versions of __roundeven.
|
|
|
190885 |
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
|
190885 |
+ This file is part of the GNU C Library.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
190885 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
190885 |
+ License as published by the Free Software Foundation; either
|
|
|
190885 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
190885 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
190885 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
190885 |
+ Lesser General Public License for more details.
|
|
|
190885 |
+
|
|
|
190885 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
190885 |
+ License along with the GNU C Library; if not, see
|
|
|
190885 |
+ <https://www.gnu.org/licenses/>. */
|
|
|
190885 |
+
|
|
|
190885 |
+#include <libm-alias-double.h>
|
|
|
190885 |
+
|
|
|
190885 |
+#define roundeven __redirect_roundeven
|
|
|
190885 |
+#define __roundeven __redirect___roundeven
|
|
|
190885 |
+#include <math.h>
|
|
|
190885 |
+#undef roundeven
|
|
|
190885 |
+#undef __roundeven
|
|
|
190885 |
+
|
|
|
190885 |
+#define SYMBOL_NAME roundeven
|
|
|
190885 |
+#include "ifunc-sse4_1.h"
|
|
|
190885 |
+
|
|
|
190885 |
+libc_ifunc_redirected (__redirect_roundeven, __roundeven, IFUNC_SELECTOR ());
|
|
|
190885 |
+libm_alias_double (__roundeven, roundeven)
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c
|
|
|
190885 |
new file mode 100644
|
|
|
190885 |
index 00000000..72a6e7d1
|
|
|
190885 |
--- /dev/null
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c
|
|
|
190885 |
@@ -0,0 +1,3 @@
|
|
|
190885 |
+#undef __roundevenf
|
|
|
190885 |
+#define __roundevenf __roundevenf_c
|
|
|
190885 |
+#include <sysdeps/ieee754/flt-32/s_roundevenf.c>
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S
|
|
|
190885 |
new file mode 100644
|
|
|
190885 |
index 00000000..a76e1080
|
|
|
190885 |
--- /dev/null
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S
|
|
|
190885 |
@@ -0,0 +1,24 @@
|
|
|
190885 |
+/* Copyright (C) 2021 Free Software Foundation, Inc.
|
|
|
190885 |
+ This file is part of the GNU C Library.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
190885 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
190885 |
+ License as published by the Free Software Foundation; either
|
|
|
190885 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
190885 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
190885 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
190885 |
+ Lesser General Public License for more details.
|
|
|
190885 |
+
|
|
|
190885 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
190885 |
+ License along with the GNU C Library; if not, see
|
|
|
190885 |
+ <https://www.gnu.org/licenses/>. */
|
|
|
190885 |
+
|
|
|
190885 |
+#include <sysdep.h>
|
|
|
190885 |
+
|
|
|
190885 |
+ .section .text.sse4.1,"ax",@progbits
|
|
|
190885 |
+ENTRY(__roundevenf_sse41)
|
|
|
190885 |
+ roundss $8, %xmm0, %xmm0
|
|
|
190885 |
+ ret
|
|
|
190885 |
+END(__roundevenf_sse41)
|
|
|
190885 |
diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c b/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c
|
|
|
190885 |
new file mode 100644
|
|
|
190885 |
index 00000000..2ee196e6
|
|
|
190885 |
--- /dev/null
|
|
|
190885 |
+++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c
|
|
|
190885 |
@@ -0,0 +1,31 @@
|
|
|
190885 |
+/* Multiple versions of __roundevenf.
|
|
|
190885 |
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
|
190885 |
+ This file is part of the GNU C Library.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
190885 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
190885 |
+ License as published by the Free Software Foundation; either
|
|
|
190885 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
190885 |
+
|
|
|
190885 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
190885 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
190885 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
190885 |
+ Lesser General Public License for more details.
|
|
|
190885 |
+
|
|
|
190885 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
190885 |
+ License along with the GNU C Library; if not, see
|
|
|
190885 |
+ <https://www.gnu.org/licenses/>. */
|
|
|
190885 |
+
|
|
|
190885 |
+#include <libm-alias-float.h>
|
|
|
190885 |
+
|
|
|
190885 |
+#define roundevenf __redirect_roundevenf
|
|
|
190885 |
+#define __roundevenf __redirect___roundevenf
|
|
|
190885 |
+#include <math.h>
|
|
|
190885 |
+#undef roundevenf
|
|
|
190885 |
+#undef __roundevenf
|
|
|
190885 |
+
|
|
|
190885 |
+#define SYMBOL_NAME roundevenf
|
|
|
190885 |
+#include "ifunc-sse4_1.h"
|
|
|
190885 |
+
|
|
|
190885 |
+libc_ifunc_redirected (__redirect_roundevenf, __roundevenf, IFUNC_SELECTOR ());
|
|
|
190885 |
+libm_alias_float (__roundeven, roundeven)
|
|
|
190885 |
--
|
|
|
190885 |
GitLab
|
|
|
190885 |
|