lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Remove HP_TIMING_DIFF_INIT and dl_hp_timing_overhead

Browse Source 
Without HP_TIMING_ACCUM, dl_hp_timing_overhead is write-only.
If we remove it, there's no point in HP_TIMING_DIFF_INIT either.
This commit is contained in:
Richard Henderson
2014-06-25 12:27:16 -07:00
parent c39323e9d2
commit 428dd03f5a
25 changed files with 1 additions and 310 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
sysdeps/sparc/sparc32/sparcv9/Makefile
View File

@ -1,10 +1,5 @@
sysdep-CFLAGS += -mcpu=ultrasparc -Wa,-Av9a
ifeq ($(subdir),csu)
sysdep_routines += hp-timing
elide-routines.os += hp-timing
endif
ifeq ($(have-as-vis3),yes)
ASFLAGS-.o += -Wa,-Av9d
ASFLAGS-.os += -Wa,-Av9d

23
sysdeps/sparc/sparc32/sparcv9/hp-timing.c
View File

@ -1,23 +0,0 @@
/* Support for high precision, low overhead timing functions. sparcv9 version.
Copyright (C) 2001-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David S. Miller <davem@redhat.com>, 2001.
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/>. */
#include <hp-timing.h>
/* We have to define the variable for the overhead. */
hp_timing_t _dl_hp_timing_overhead;

15
sysdeps/sparc/sparc32/sparcv9/hp-timing.h
View File

@ -34,21 +34,6 @@ typedef unsigned long long int hp_timing_t;
"srlx %L0, 32, %H0" \
: "=r" (Var))
#define HP_TIMING_DIFF_INIT() \
do { \
int __cnt = 5; \
GLRO(dl_hp_timing_overhead) = ~0ull; \
do \
{ \
hp_timing_t __t1, __t2; \
HP_TIMING_NOW (__t1); \
HP_TIMING_NOW (__t2); \
if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \
GLRO(dl_hp_timing_overhead) = __t2 - __t1; \
} \
while (--__cnt > 0); \
} while (0)
#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start))
#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff)

5
sysdeps/sparc/sparc64/Makefile
View File

@ -1,8 +1,3 @@
ifeq ($(subdir),csu)
sysdep_routines += hp-timing
elide-routines.os += hp-timing
endif
ifeq ($(subdir),string)
sysdep_routines += align-cpy
endif

23
sysdeps/sparc/sparc64/hp-timing.c
View File

@ -1,23 +0,0 @@
/* Support for high precision, low overhead timing functions. sparc64 version.
Copyright (C) 2001-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David S. Miller <davem@redhat.com>, 2001.
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/>. */
#include <hp-timing.h>
/* We have to define the variable for the overhead. */
hp_timing_t _dl_hp_timing_overhead;

15
sysdeps/sparc/sparc64/hp-timing.h
View File

@ -31,21 +31,6 @@ typedef unsigned long int hp_timing_t;
#define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rd %%tick, %0" : "=r" (Var))
#define HP_TIMING_DIFF_INIT() \
do { \
int __cnt = 5; \
GLRO(dl_hp_timing_overhead) = ~0ull; \
do \
{ \
hp_timing_t __t1, __t2; \
HP_TIMING_NOW (__t1); \
HP_TIMING_NOW (__t2); \
if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \
GLRO(dl_hp_timing_overhead) = __t2 - __t1; \
} \
while (--__cnt > 0); \
} while (0)
#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start))
#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff)