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-rw-r--r--ChangeLog9
-rw-r--r--benchtests/bench-memcpy.c4
-rw-r--r--benchtests/bench-memmove.c1
-rw-r--r--string/test-memcpy.c6
-rw-r--r--string/test-memmove.c1
5 files changed, 21 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index ce605c1e38..5249fbecfa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2016-05-18 H.J. Lu <hongjiu.lu@intel.com>
+
+ [BZ #19907]
+ * benchtests/bench-memcpy.c (do_one_test): Clear the destination
+ buffer updated by the previous run.
+ * string/test-memcpy.c (do_one_test): Likewise.
+ * benchtests/bench-memmove.c (do_one_test): Add a comment.
+ * string/test-memmove.c (do_one_test): Likewise.
+
2016-05-17 Joseph Myers <joseph@codesourcery.com>
[BZ #20094]
diff --git a/benchtests/bench-memcpy.c b/benchtests/bench-memcpy.c
index c5a71925be..9d9e7b6879 100644
--- a/benchtests/bench-memcpy.c
+++ b/benchtests/bench-memcpy.c
@@ -55,6 +55,10 @@ do_one_test (impl_t *impl, char *dst, const char *src,
size_t i, iters = INNER_LOOP_ITERS;
timing_t start, stop, cur;
+ /* Must clear the destination buffer set by the previous run. */
+ for (i = 0; i < len; i++)
+ dst[i] = 0;
+
if (CALL (impl, dst, src, len) != MEMCPY_RESULT (dst, len))
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,
diff --git a/benchtests/bench-memmove.c b/benchtests/bench-memmove.c
index c38596b41e..3858f2ac52 100644
--- a/benchtests/bench-memmove.c
+++ b/benchtests/bench-memmove.c
@@ -70,6 +70,7 @@ do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
size_t i, iters = INNER_LOOP_ITERS;
timing_t start, stop, cur;
+ /* This also clears the destination buffer set by the previous run. */
memcpy (src, orig_src, len);
#ifdef TEST_BCOPY
CALL (impl, src, dst, len);
diff --git a/string/test-memcpy.c b/string/test-memcpy.c
index 2a0994ca98..cb072f8674 100644
--- a/string/test-memcpy.c
+++ b/string/test-memcpy.c
@@ -53,6 +53,12 @@ static void
do_one_test (impl_t *impl, char *dst, const char *src,
size_t len)
{
+ size_t i;
+
+ /* Must clear the destination buffer set by the previous run. */
+ for (i = 0; i < len; i++)
+ dst[i] = 0;
+
if (CALL (impl, dst, src, len) != MEMCPY_RESULT (dst, len))
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,
diff --git a/string/test-memmove.c b/string/test-memmove.c
index d2ab3f3c8d..43433297e5 100644
--- a/string/test-memmove.c
+++ b/string/test-memmove.c
@@ -68,6 +68,7 @@ static void
do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
size_t len)
{
+ /* This also clears the destination buffer set by the previous run. */
memcpy (src, orig_src, len);
#ifdef TEST_BCOPY
CALL (impl, src, dst, len);