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Use generic memset/memcpy/memmove in benchtests
Use the generic C memset/memcpy/memmove in benchtests since comparing against a slow byte-oriented implementation makes no sense. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> 2019-08-29 Wilco Dijkstra <wdijkstr@arm.com> * benchtests/bench-memcpy.c (simple_memcpy): Remove. (generic_memcpy): Include generic C memcpy. * benchtests/bench-memmove.c (simple_memmove): Remove. (generic_memmove): Include generic C memmove. * benchtests/bench-memset.c (simple_memset): Remove. (generic_memset): Include generic C memset. * benchtests/bench-memset-large.c (simple_memset): Remove. (generic_memset): Include generic C memset. * benchtests/bench-memset-walk.c (simple_memset): Remove. (generic_memset): Include generic C memset. * string/memcpy.c (MEMCPY): Add defines to enable redirection. * string/memset.c (MEMSET): Likewise. * sysdeps/x86_64/memcopy.h: Remove empty file.
This commit is contained in:
Wilco Dijkstra
parent
9743c6272d
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3c05dd79d0
16
ChangeLog
16
ChangeLog
@ -1,3 +1,19 @@
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2019-08-30 Wilco Dijkstra <wdijkstr@arm.com>
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* benchtests/bench-memcpy.c (simple_memcpy): Remove.
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(generic_memcpy): Include generic C memcpy.
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* benchtests/bench-memmove.c (simple_memmove): Remove.
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(generic_memmove): Include generic C memmove.
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* benchtests/bench-memset.c (simple_memset): Remove.
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(generic_memset): Include generic C memset.
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* benchtests/bench-memset-large.c (simple_memset): Remove.
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(generic_memset): Include generic C memset.
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* benchtests/bench-memset-walk.c (simple_memset): Remove.
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(generic_memset): Include generic C memset.
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* string/memcpy.c (MEMCPY): Add defines to enable redirection.
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* string/memset.c (MEMSET): Likewise.
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* sysdeps/x86_64/memcopy.h: Remove empty file.
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2019-08-30 Florian Weimer <fweimer@redhat.com>
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nptl: Move pthread_attr_getinheritsched implementation into libc.
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@ -23,23 +23,16 @@
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# define TEST_NAME "memcpy"
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# include "bench-string.h"
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char *
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simple_memcpy (char *dst, const char *src, size_t n)
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{
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char *ret = dst;
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while (n--)
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*dst++ = *src++;
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return ret;
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}
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void *generic_memcpy (void *, const void *, size_t);
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IMPL (memcpy, 1)
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IMPL (simple_memcpy, 0)
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IMPL (generic_memcpy, 0)
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#endif
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# include "json-lib.h"
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typedef char *(*proto_t) (char *, const char *, size_t);
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typedef void *(*proto_t) (void *, const void *, size_t);
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static void
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do_one_test (json_ctx_t *json_ctx, impl_t *impl, char *dst, const char *src,
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@ -161,3 +154,9 @@ test_main (void)
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}
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#include <support/test-driver.c>
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#define libc_hidden_builtin_def(X)
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#undef MEMCPY
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#define MEMCPY generic_memcpy
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#include <string/memcpy.c>
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#include <string/wordcopy.c>
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@ -21,30 +21,12 @@
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#include "bench-string.h"
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#include "json-lib.h"
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char *simple_memmove (char *, const char *, size_t);
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void *generic_memmove (void *, const void *, size_t);
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typedef char *(*proto_t) (char *, const char *, size_t);
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typedef void *(*proto_t) (void *, const void *, size_t);
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IMPL (memmove, 1)
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IMPL (simple_memmove, 0)
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char *
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inhibit_loop_to_libcall
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simple_memmove (char *dst, const char *src, size_t n)
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{
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char *ret = dst;
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if (src < dst)
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{
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dst += n;
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src += n;
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while (n--)
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*--dst = *--src;
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}
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else
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while (n--)
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*dst++ = *src++;
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return ret;
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}
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IMPL (generic_memmove, 0)
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static void
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do_one_test (json_ctx_t *json_ctx, impl_t *impl, char *dst, char *src,
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@ -165,3 +147,9 @@ test_main (void)
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}
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#include <support/test-driver.c>
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#define libc_hidden_builtin_def(X)
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#undef MEMMOVE
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#define MEMMOVE generic_memmove
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#include <string/memmove.c>
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#include <string/wordcopy.c>
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@ -17,38 +17,20 @@
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<http://www.gnu.org/licenses/>. */
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#define TEST_MAIN
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#ifndef WIDE
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# define TEST_NAME "memset"
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#else
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# define TEST_NAME "wmemset"
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#endif /* WIDE */
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#define TEST_NAME "memset"
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#define START_SIZE (128 * 1024)
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#define MIN_PAGE_SIZE (getpagesize () + 64 * 1024 * 1024)
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#define TIMEOUT (20 * 60)
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#include "bench-string.h"
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#ifndef WIDE
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# define SIMPLE_MEMSET simple_memset
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#else
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# define SIMPLE_MEMSET simple_wmemset
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#endif /* WIDE */
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#include <assert.h>
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#include "json-lib.h"
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void *generic_memset (void *, int, size_t);
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typedef void *(*proto_t) (void *, int, size_t);
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IMPL (MEMSET, 1)
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typedef CHAR *(*proto_t) (CHAR *, int, size_t);
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CHAR *
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inhibit_loop_to_libcall
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SIMPLE_MEMSET (CHAR *s, int c, size_t n)
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{
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CHAR *r = s, *end = s + n;
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while (r < end)
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*r++ = c;
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return s;
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}
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IMPL (generic_memset, 0)
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static void
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do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s,
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@ -133,3 +115,11 @@ test_main (void)
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}
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#include <support/test-driver.c>
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#define libc_hidden_builtin_def(X)
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#define libc_hidden_def(X)
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#define libc_hidden_weak(X)
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#define weak_alias(X,Y)
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#undef MEMSET
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#define MEMSET generic_memset
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#include <string/memset.c>
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@ -17,39 +17,20 @@
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<http://www.gnu.org/licenses/>. */
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#define TEST_MAIN
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#ifndef WIDE
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# define TEST_NAME "memset"
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#else
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# define TEST_NAME "wmemset"
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#endif /* WIDE */
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#define TEST_NAME "memset"
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#define START_SIZE 128
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#define MIN_PAGE_SIZE (getpagesize () + 32 * 1024 * 1024)
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#define TIMEOUT (20 * 60)
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#include "bench-string.h"
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#ifndef WIDE
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# define SIMPLE_MEMSET simple_memset
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#else
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# define SIMPLE_MEMSET simple_wmemset
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#endif /* WIDE */
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#include <assert.h>
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#include "json-lib.h"
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void *generic_memset (void *, int, size_t);
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typedef void *(*proto_t) (void *, int, size_t);
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typedef CHAR *(*proto_t) (CHAR *, int, size_t);
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CHAR *
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inhibit_loop_to_libcall
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SIMPLE_MEMSET (CHAR *s, int c, size_t n)
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{
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CHAR *r = s, *end = s + n;
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while (r < end)
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*r++ = c;
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return s;
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}
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IMPL (SIMPLE_MEMSET, 1)
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IMPL (MEMSET, 1)
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IMPL (generic_memset, 0)
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static void
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do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s, CHAR *s_end,
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@ -132,3 +113,11 @@ test_main (void)
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}
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#include <support/test-driver.c>
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#define libc_hidden_builtin_def(X)
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#define libc_hidden_def(X)
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#define libc_hidden_weak(X)
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#define weak_alias(X,Y)
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#undef MEMSET
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#define MEMSET generic_memset
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#include <string/memset.c>
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@ -21,28 +21,23 @@
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# define TEST_NAME "memset"
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#else
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# define TEST_NAME "wmemset"
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# define generic_memset generic_wmemset
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#endif /* WIDE */
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#define MIN_PAGE_SIZE 131072
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#include "bench-string.h"
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#include "json-lib.h"
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CHAR *SIMPLE_MEMSET (CHAR *, int, size_t);
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#ifdef WIDE
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CHAR *generic_wmemset (CHAR *, CHAR, size_t);
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#else
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void *generic_memset (void *, int, size_t);
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#endif
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typedef CHAR *(*proto_t) (CHAR *, int, size_t);
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typedef void *(*proto_t) (void *, int, size_t);
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IMPL (MEMSET, 1)
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IMPL (SIMPLE_MEMSET, 0)
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CHAR *
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inhibit_loop_to_libcall
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SIMPLE_MEMSET (CHAR *s, int c, size_t n)
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{
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CHAR *r = s, *end = s + n;
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while (r < end)
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*r++ = c;
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return s;
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}
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IMPL (generic_memset, 0)
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static void
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do_one_test (json_ctx_t *json_ctx, impl_t *impl, CHAR *s,
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@ -146,3 +141,16 @@ test_main (void)
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}
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#include <support/test-driver.c>
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#define libc_hidden_builtin_def(X)
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#define libc_hidden_def(X)
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#define libc_hidden_weak(X)
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#define weak_alias(X,Y)
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#ifndef WIDE
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# undef MEMSET
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# define MEMSET generic_memset
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# include <string/memset.c>
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#else
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# define WMEMSET generic_wmemset
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# include <wcsmbs/wmemset.c>
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#endif
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@ -21,10 +21,12 @@
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#include <string.h>
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#include <memcopy.h>
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#undef memcpy
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#ifndef MEMCPY
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# define MEMCPY memcpy
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#endif
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void *
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memcpy (void *dstpp, const void *srcpp, size_t len)
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MEMCPY (void *dstpp, const void *srcpp, size_t len)
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{
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unsigned long int dstp = (long int) dstpp;
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unsigned long int srcp = (long int) srcpp;
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@ -57,4 +59,4 @@ memcpy (void *dstpp, const void *srcpp, size_t len)
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return dstpp;
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}
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libc_hidden_builtin_def (memcpy)
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libc_hidden_builtin_def (MEMCPY)
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@ -18,11 +18,13 @@
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#include <string.h>
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#include <memcopy.h>
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#undef memset
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#ifndef MEMSET
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# define MEMSET memset
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#endif
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void *
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inhibit_loop_to_libcall
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memset (void *dstpp, int c, size_t len)
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MEMSET (void *dstpp, int c, size_t len)
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{
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long int dstp = (long int) dstpp;
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@ -85,4 +87,4 @@ memset (void *dstpp, int c, size_t len)
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return dstpp;
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}
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libc_hidden_builtin_def (memset)
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libc_hidden_builtin_def (MEMSET)
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@ -1 +0,0 @@
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/* X86-64 doesn't use memory copy functions. */
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