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| author | Stefan Liebler <stli@linux.ibm.com> | 2018-07-26 17:09:44 +0200 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-07-26 17:09:44 +0200 |
| commit | c9dc4d5117afea7283d5fd80c80be8cc09cde84d (patch) | |
| tree | 915d2f3ac4ab5e720455f777a5fe378835095421 /math | |
| parent | cfba5dbb10cc3abde632b46c60c10b2843917035 (diff) | |
Fix string/tst-xbzero-opt if build with gcc head.
On s390x, the test string/tst-xbzero-opt is failing if build with gcc head:
FAIL: no clear/prepare: expected 32 got 0
FAIL: no clear/test: expected some got 0
FAIL: ordinary clear/prepare: expected 32 got 0
INFO: ordinary clear/test: found 0 patterns (memset not eliminated)
PASS: explicit clear/prepare: expected 32 got 32
PASS: explicit clear/test: expected 0 got 0
In setup_no_clear / setup_ordinary_clear, GCC is omitting the memcpy loop
in prepare_test_buffer. Thus count_test_patterns does not find any of the
test_pattern.
This patch calls use_test_buffer in order to force the compiler to really copy
the pattern to buf.
ChangeLog:
* string/tst-xbzero-opt.c (use_test_buffer): New function.
(prepare_test_buffer): Call use_test_buffer as compiler barrier.
Diffstat (limited to 'math')
0 files changed, 0 insertions, 0 deletions