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benchtests: Add attribute_optimize

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Similar to tst-printf-bz18872.sh, add the attribute_optimize to avoid
build failures with compilers that do not support "GCC optimize" pragma.

Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
Adhemerval Zanella
2025-11-20 15:30:13 -03:00
parent 46be3e521c
commit 9849a61b34
3 changed files with 14 additions and 13 deletions
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11
benchtests/bench-pthread-lock-base.c
View File

@@ -28,6 +28,7 @@
#include <sys/time.h>
#include <sys/sysinfo.h>
#include "bench-timing.h"
#include "bench-util.h"
#include "json-lib.h"
static bench_lock_t lock;
@@ -36,10 +37,8 @@ static pthread_barrier_t barrier;
#define START_ITERS 1000
#pragma GCC push_options
#pragma GCC optimize(1)
static int __attribute__ ((noinline)) fibonacci (int i)
static int __attribute__ ((noinline)) attribute_optimize (1)
fibonacci (int i)
{
asm("");
if (i > 2)
@@ -48,6 +47,7 @@ static int __attribute__ ((noinline)) fibonacci (int i)
}
static void
attribute_optimize (1)
do_filler (void)
{
char buf1[512], buf2[512];
@@ -56,6 +56,7 @@ do_filler (void)
}
static void
attribute_optimize (1)
do_filler_shared (void)
{
static char buf1[512], buf2[512];
@@ -63,8 +64,6 @@ do_filler_shared (void)
memcpy (buf1, buf2, f);
}
#pragma GCC pop_options
#define UNIT_WORK_CRT do_filler_shared ()
#define UNIT_WORK_NON_CRT do_filler ()

10
benchtests/bench-pthread-locks.c
View File

@@ -29,6 +29,7 @@
#include <sys/time.h>
#include <math.h>
#include "bench-timing.h"
#include "bench-util.h"
#include "json-lib.h"
/* The point of this benchmark is to measure the overhead of an empty
@@ -61,10 +62,7 @@ typedef timing_t (*test_t)(long, int);
total time each test iteration takes, so as to not swamp the useful
timings. */
#pragma GCC push_options
#pragma GCC optimize(1)
static int __attribute__((noinline))
static int __attribute__((noinline)) attribute_optimize (1)
fibonacci (int i)
{
asm("");
@@ -73,7 +71,7 @@ fibonacci (int i)
return 10+i;
}
static void
static void attribute_optimize (1)
do_filler (void)
{
static char buf1[512], buf2[512];
@@ -81,8 +79,6 @@ do_filler (void)
memcpy (buf1, buf2, f);
}
#pragma GCC pop_options
static timing_t
test_mutex (long iters, int filler)
{

6
benchtests/bench-util.h
View File

@@ -24,6 +24,12 @@
__v; \
})
#if __GNUC_PREREQ (4, 4) || __glibc_has_attribute (__optimize__)
# define attribute_optimize(level) __attribute__ ((optimize (level)))
#else
# define attribute_optimize(level)
#endif
#ifndef START_ITER
# define START_ITER (100000000)
#endif