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Use IFUNC memmove/memset in x86-64 bcopy/bzero

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Also add separate tests for bcopy and bzero.
This commit is contained in:
H.J. Lu
2012-10-11 13:58:16 -07:00
parent 54a417345e
commit 9a387d1f78
9 changed files with 152 additions and 49 deletions
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35
string/test-memmove.c
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@ -1,5 +1,5 @@
/* Test and measure memmove functions.
Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
Copyright (C) 1999-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Jakub Jelinek <jakub@redhat.com>, 1999.
@ -20,11 +20,26 @@
#define TEST_MAIN
#include "test-string.h"
typedef char *(*proto_t) (char *, const char *, size_t);
char *simple_memmove (char *, const char *, size_t);
#ifdef TEST_BCOPY
typedef void (*proto_t) (const char *, char *, size_t);
void simple_bcopy (const char *, char *, size_t);
IMPL (simple_bcopy, 0)
IMPL (bcopy, 1)
void
simple_bcopy (const char *src, char *dst, size_t n)
{
simple_memmove (dst, src, n);
}
#else
typedef char *(*proto_t) (char *, const char *, size_t);
IMPL (simple_memmove, 0)
IMPL (memmove, 1)
#endif
char *
simple_memmove (char *dst, const char *src, size_t n)
@ -47,9 +62,12 @@ static void
do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
size_t len)
{
memcpy (src, orig_src, len);
#ifdef TEST_BCOPY
CALL (impl, src, dst, len);
#else
char *res;
memcpy (src, orig_src, len);
res = CALL (impl, dst, src, len);
if (res != dst)
{
@ -58,6 +76,7 @@ do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
ret = 1;
return;
}
#endif
if (memcmp (dst, orig_src, len) != 0)
{
@ -77,7 +96,11 @@ do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
for (i = 0; i < 32; ++i)
{
HP_TIMING_NOW (start);
#ifdef TEST_BCOPY
CALL (impl, src, dst, len);
#else
CALL (impl, dst, src, len);
#endif
HP_TIMING_NOW (stop);
HP_TIMING_BEST (best_time, start, stop);
}
@ -123,7 +146,9 @@ do_random_tests (void)
size_t srcstart, srcend, dststart, dstend;
int c;
unsigned char *p1, *p2;
#ifndef TEST_BCOPY
unsigned char *res;
#endif
for (n = 0; n < ITERATIONS; n++)
{
@ -178,6 +203,9 @@ do_random_tests (void)
{
memset (p2 + dststart, c, dstend - dststart);
memcpy (p2 + srcstart, p1 + srcstart, srcend - srcstart);
#ifdef TEST_BCOPY
CALL (impl, (char *) (p2 + align1), (char *) (p2 + align2), len);
#else
res = (unsigned char *) CALL (impl,
(char *) (p2 + align2),
(char *) (p2 + align1), len);
@ -187,6 +215,7 @@ do_random_tests (void)
n, impl->name, align1, align2, len, res, p2 + align2);
ret = 1;
}
#endif
if (memcmp (p1 + align1, p2 + align2, len))
{
error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)",