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GNU C Library master sources branch master updated. glibc-2.26.9000-629-g80bb593
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 22 Oct 2017 15:08:17 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.26.9000-629-g80bb593
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=80bb5935632faf8a8e94daf976340e549be9d4c5
commit 80bb5935632faf8a8e94daf976340e549be9d4c5
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Oct 22 08:07:48 2017 -0700
x86-64: Add powf with FMA
For workload-spec2017.wrf, on Skylake, it improves performance by:
Before After Improvement
reciprocal-throughput 35.4713 27.3842 29%
latency 82.4537 66.3175 24%
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add e_powf-fma.
(CFLAGS-e_powf-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/e_powf-fma.c: New file.
* sysdeps/x86_64/fpu/multiarch/e_powf.c: Likewise.
diff --git a/ChangeLog b/ChangeLog
index 7e904db..28df1d2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,14 @@
2017-10-22 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
+ Add e_powf-fma.
+ (CFLAGS-e_powf-fma.c): New.
+ * sysdeps/x86_64/fpu/multiarch/e_powf-fma.c: New file.
+ * sysdeps/x86_64/fpu/multiarch/e_powf.c: Likewise.
+
+2017-10-22 H.J. Lu <hongjiu.lu@intel.com>
+
+ * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add e_log2f-fma.
(CFLAGS-e_log2f-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c: New file.
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index 5338a6b..c78624b 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -37,12 +37,14 @@ CFLAGS-slowpow-fma.c = -mfma -mavx2
CFLAGS-s_sin-fma.c = -mfma -mavx2
CFLAGS-s_tan-fma.c = -mfma -mavx2
-libm-sysdep_routines += e_exp2f-fma e_expf-fma e_log2f-fma e_logf-fma
+libm-sysdep_routines += e_exp2f-fma e_expf-fma e_log2f-fma e_logf-fma \
+ e_powf-fma
CFLAGS-e_exp2f-fma.c = -mfma -mavx2
CFLAGS-e_expf-fma.c = -mfma -mavx2
CFLAGS-e_log2f-fma.c = -mfma -mavx2
CFLAGS-e_logf-fma.c = -mfma -mavx2
+CFLAGS-e_powf-fma.c = -mfma -mavx2
libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \
e_asin-fma4 e_atan2-fma4 s_sin-fma4 s_tan-fma4 \
diff --git a/sysdeps/x86_64/fpu/multiarch/e_powf-fma.c b/sysdeps/x86_64/fpu/multiarch/e_powf-fma.c
new file mode 100644
index 0000000..fdf5dcc
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/e_powf-fma.c
@@ -0,0 +1,3 @@
+#define __powf __powf_fma
+
+#include <sysdeps/ieee754/flt-32/e_powf.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_powf.c b/sysdeps/x86_64/fpu/multiarch/e_powf.c
new file mode 100644
index 0000000..c110dba
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/e_powf.c
@@ -0,0 +1,43 @@
+/* Multiple versions of powf.
+ Copyright (C) 2017 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
+ <http://www.gnu.org/licenses/>. */
+
+#define powf __redirect_powf
+#define __DECL_SIMD___redirect_powf
+#include <math.h>
+#undef powf
+
+#define SYMBOL_NAME powf
+#include "ifunc-fma.h"
+
+libc_ifunc_redirected (__redirect_powf, __powf, IFUNC_SELECTOR ());
+
+#ifdef SHARED
+__hidden_ver1 (__powf, __GI___powf, __redirect_powf)
+ __attribute__ ((visibility ("hidden")));
+
+# include <shlib-compat.h>
+versioned_symbol (libm, __powf, powf, GLIBC_2_27);
+#else
+weak_alias (__powf, powf)
+#endif
+
+strong_alias (__powf, __ieee754_powf)
+strong_alias (__powf, __powf_finite)
+
+#define __powf __powf_sse2
+#include <sysdeps/ieee754/flt-32/e_powf.c>
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=5c7adbd8eded546eb6e17a82f5ab3b35def47f38
commit 5c7adbd8eded546eb6e17a82f5ab3b35def47f38
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Oct 22 08:06:46 2017 -0700
x86-64: Add log2f with FMA
For workload-spec2017.wrf, on Skylake, it improves performance by:
Before After Improvement
reciprocal-throughput 16.5937 14.0789 17%
latency 41.7755 35.3586 18%
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add e_log2f-fma.
(CFLAGS-e_log2f-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c: New file.
* sysdeps/x86_64/fpu/multiarch/e_log2f.c: Likewise.
diff --git a/ChangeLog b/ChangeLog
index 603cdae..7e904db 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,14 @@
2017-10-22 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
+ Add e_log2f-fma.
+ (CFLAGS-e_log2f-fma.c): New.
+ * sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c: New file.
+ * sysdeps/x86_64/fpu/multiarch/e_log2f.c: Likewise.
+
+2017-10-22 H.J. Lu <hongjiu.lu@intel.com>
+
+ * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines):
Add e_logf-fma.
(CFLAGS-e_logf-fma.c): New.
* sysdeps/x86_64/fpu/multiarch/e_logf-fma.c: New file.
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index 97d886a..5338a6b 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -37,10 +37,11 @@ CFLAGS-slowpow-fma.c = -mfma -mavx2
CFLAGS-s_sin-fma.c = -mfma -mavx2
CFLAGS-s_tan-fma.c = -mfma -mavx2
-libm-sysdep_routines += e_exp2f-fma e_expf-fma e_logf-fma
+libm-sysdep_routines += e_exp2f-fma e_expf-fma e_log2f-fma e_logf-fma
CFLAGS-e_exp2f-fma.c = -mfma -mavx2
CFLAGS-e_expf-fma.c = -mfma -mavx2
+CFLAGS-e_log2f-fma.c = -mfma -mavx2
CFLAGS-e_logf-fma.c = -mfma -mavx2
libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \
diff --git a/sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c b/sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c
new file mode 100644
index 0000000..8a76b83
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c
@@ -0,0 +1,3 @@
+#define __log2f __log2f_fma
+
+#include <sysdeps/ieee754/flt-32/e_log2f.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_log2f.c b/sysdeps/x86_64/fpu/multiarch/e_log2f.c
new file mode 100644
index 0000000..be12c45
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/e_log2f.c
@@ -0,0 +1,40 @@
+/* Multiple versions of log2f.
+ Copyright (C) 2017 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
+ <http://www.gnu.org/licenses/>. */
+
+extern float __redirect_log2f (float);
+
+#define SYMBOL_NAME log2f
+#include "ifunc-fma.h"
+
+libc_ifunc_redirected (__redirect_log2f, __log2f, IFUNC_SELECTOR ());
+
+#ifdef SHARED
+__hidden_ver1 (__log2f, __GI___log2f, __redirect_log2f)
+ __attribute__ ((visibility ("hidden")));
+
+# include <shlib-compat.h>
+versioned_symbol (libm, __log2f, log2f, GLIBC_2_27);
+#else
+weak_alias (__log2f, log2f)
+#endif
+
+strong_alias (__log2f, __ieee754_log2f)
+strong_alias (__log2f, __log2f_finite)
+
+#define __log2f __log2f_sse2
+#include <sysdeps/ieee754/flt-32/e_log2f.c>
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 16 ++++++++++
sysdeps/x86_64/fpu/multiarch/Makefile | 5 ++-
sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c | 3 ++
sysdeps/x86_64/fpu/multiarch/e_log2f.c | 40 ++++++++++++++++++++++++++
sysdeps/x86_64/fpu/multiarch/e_powf-fma.c | 3 ++
sysdeps/x86_64/fpu/multiarch/e_powf.c | 43 ++++++++++++++++++++++++++++
6 files changed, 109 insertions(+), 1 deletions(-)
create mode 100644 sysdeps/x86_64/fpu/multiarch/e_log2f-fma.c
create mode 100644 sysdeps/x86_64/fpu/multiarch/e_log2f.c
create mode 100644 sysdeps/x86_64/fpu/multiarch/e_powf-fma.c
create mode 100644 sysdeps/x86_64/fpu/multiarch/e_powf.c
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