git.ipfire.org Git - thirdparty/glibc.git/commit

author	Noah Goldstein <goldstein.w.n@gmail.com>
	Fri, 18 Feb 2022 20:19:15 +0000 (14:19 -0600)
committer	H.J. Lu <hjl.tools@gmail.com>
	Fri, 18 Feb 2022 22:59:54 +0000 (14:59 -0800)
commit	d093b677c36ef4b360bf30483b68b95d9f0ad1d2
tree	c2c2e309e8f7808c126dee5f8ac88753dc42748a	tree
parent	38e0d2479413ccdbc02b4c9e9e246eca31e956c9	commit \| diff

x86: Test wcscmp RTM in the wcsncmp overflow case [BZ #28896]

In the overflow fallback strncmp-avx2-rtm and wcsncmp-avx2-rtm would
call strcmp-avx2 and wcscmp-avx2 respectively. This would have
not checks around vzeroupper and would trigger spurious
aborts. This commit fixes that.

test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass on
AVX2 machines with and without RTM.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
(cherry picked from commit 7835d611af0854e69a0c71e3806f8fe379282d6f)

sysdeps/x86/Makefile		diff \| blob \| blame \| history
sysdeps/x86/tst-strncmp-rtm.c		diff \| blob \| blame \| history
sysdeps/x86/tst-wcsncmp-rtm.c	[new file with mode: 0644]	blob