aboutsummaryrefslogtreecommitdiff
path: root/string
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2005-11-17 21:19:33 +0000
committerUlrich Drepper <drepper@redhat.com>2005-11-17 21:19:33 +0000
commit8ce9ea74cc2a6ce6fdafac0e0829b1bc93788143 (patch)
tree0ff362f555105a0d52a00c358bf192d20d6e9141 /string
parent52d979bb0d55911b4f60ae87588bede557082aaa (diff)
downloadglibc-8ce9ea74cc2a6ce6fdafac0e0829b1bc93788143.zip
glibc-8ce9ea74cc2a6ce6fdafac0e0829b1bc93788143.tar.gz
glibc-8ce9ea74cc2a6ce6fdafac0e0829b1bc93788143.tar.bz2
[BZ #1877]
2005-11-17 Steven Munroe <sjmunroe@us.ibm.com> [BZ #1877] * string/test-strncmp.c (do_test_limit): New function. (do_test) Add cast to eliminate compiler warnings. (do_random_tests) Add cast to eliminate compiler warnings. (test_main) Add do_test_limit tests. * sysdeps/powerpc/powerpc32/strncmp.S: Test length before unaligned load. * sysdeps/powerpc/powerpc64/strncmp.S: Likewise.
Diffstat (limited to 'string')
-rw-r--r--string/test-strncmp.c60
1 files changed, 56 insertions, 4 deletions
diff --git a/string/test-strncmp.c b/string/test-strncmp.c
index 431b64d..4726f87 100644
--- a/string/test-strncmp.c
+++ b/string/test-strncmp.c
@@ -86,6 +86,46 @@ do_one_test (impl_t *impl, const char *s1, const char *s2, size_t n,
}
static void
+do_test_limit (size_t align1, size_t align2, size_t len, size_t n, int max_char,
+ int exp_result)
+{
+ size_t i;
+ char *s1, *s2;
+
+ if (n == 0)
+ return;
+
+ align1 &= 7;
+
+ align2 &= 7;
+
+ s1 = (char*)(buf1 + page_size - n);
+ s2 = (char*)(buf2 + page_size - n);
+
+ for (i = 0; i < n; i++)
+ s1[i] = s2[i] = 1 + 23 * i % max_char;
+
+ if (len < n)
+ {
+ s1[len] = 0;
+ s2[len] = 0;
+ if (exp_result < 0)
+ s2[len] = 32;
+ else if (exp_result > 0)
+ s1[len] = 64;
+ }
+
+ if (HP_TIMING_AVAIL)
+ printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len, n, align1, align2);
+
+ FOR_EACH_IMPL (impl, 0)
+ do_one_test (impl, s1, s2, n, exp_result);
+
+ if (HP_TIMING_AVAIL)
+ putchar ('\n');
+}
+
+static void
do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
int exp_result)
{
@@ -103,8 +143,8 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
if (align2 + n + 1 >= page_size)
return;
- s1 = buf1 + align1;
- s2 = buf2 + align2;
+ s1 = (char*)(buf1 + align1);
+ s2 = (char*)(buf2 + align2);
for (i = 0; i < n; i++)
s1[i] = s2[i] = 1 + 23 * i % max_char;
@@ -124,7 +164,7 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len, n, align1, align2);
FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s1, s2, n, exp_result);
+ do_one_test (impl, (char*)s1, (char*)s2, n, exp_result);
if (HP_TIMING_AVAIL)
putchar ('\n');
@@ -208,7 +248,7 @@ do_random_tests (void)
FOR_EACH_IMPL (impl, 1)
{
- r = CALL (impl, p1 + align1, p2 + align2, size);
+ r = CALL (impl, (char*)(p1 + align1), (char*)(p2 + align2), size);
/* Test whether on 64-bit architectures where ABI requires
callee to promote has the promotion been done. */
asm ("" : "=g" (r) : "0" (r));
@@ -272,6 +312,18 @@ test_main (void)
do_test (2 * i, i, 8 << i, 16 << i, 255, 1);
}
+ for (i = 1; i < 8; ++i)
+ {
+ do_test_limit (0, 0, 17 - i, 16 - i, 127, 0);
+ do_test_limit (0, 0, 17 - i, 16 - i, 255, 0);
+ do_test_limit (0, 0, 15 - i, 16 - i, 127, 0);
+ do_test_limit (0, 0, 15 - i, 16 - i, 127, 1);
+ do_test_limit (0, 0, 15 - i, 16 - i, 127, -1);
+ do_test_limit (0, 0, 15 - i, 16 - i, 255, 0);
+ do_test_limit (0, 0, 15 - i, 16 - i, 255, 1);
+ do_test_limit (0, 0, 15 - i, 16 - i, 255, -1);
+ }
+
do_random_tests ();
return ret;
}