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02b78ff749
glibc/sysdeps
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H.J. Lu 02b78ff749 Add VZEROUPPER to memset-vec-unaligned-erms.S [BZ #21081] 
Since memset-vec-unaligned-erms.S has VDUP_TO_VEC0_AND_SET_RETURN at
function entry, memset optimized for AVX2 and AVX512 will always use
ymm/zmm register. VZEROUPPER should be placed before ret in

L(stosb):
        movq    %rdx, %rcx
        movzbl  %sil, %eax
        movq    %rdi, %rdx
        rep stosb
        movq    %rdx, %rax
        ret

since it can be reached from

L(stosb_more_2x_vec):
        cmpq    $REP_STOSB_THRESHOLD, %rdx
        ja      L(stosb)

	[BZ #21081]
	* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
	(L(stosb)): Add VZEROUPPER before ret.
2017-01-30 10:59:31 -08:00
..
aarch64 New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
alpha Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
arm Fix ARM fpu_control.h for assemblers requiring VFP insn names (bug 21047). 2017-01-19 00:05:34 +00:00
generic Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gnu Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hppa Remove very old libm-test-ulps entries. 2017-01-20 23:58:49 +00:00
i386 Move wrappers to libm-compat-calls-auto 2017-01-04 16:25:04 -02:00
ia64 Remove very old libm-test-ulps entries. 2017-01-20 23:58:49 +00:00
ieee754 Move wrappers to libm-compat-calls-auto 2017-01-04 16:25:04 -02:00
init_array Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
m68k Remove very old libm-test-ulps entries. 2017-01-20 23:58:49 +00:00
mach Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
microblaze Remove very old libm-test-ulps entries. 2017-01-20 23:58:49 +00:00
mips New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
nacl Bug 20116: Fix use after free in pthread_create() 2017-01-28 19:21:44 -05:00
nios2 New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
nptl Clear list of acquired robust mutexes in the child process after forking. 2017-01-13 17:17:38 +01:00
posix Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
powerpc powerpc: Regenerate ULPs 2017-01-13 09:36:46 -02:00
pthread Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
s390 New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
sh Remove very old libm-test-ulps entries. 2017-01-20 23:58:49 +00:00
sparc New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
tile tile: Check for pointer add overflow in memchr 2017-01-16 15:44:48 -05:00
unix Bug 20116: Fix use after free in pthread_create() 2017-01-28 19:21:44 -05:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
x86 New pthread rwlock that is more scalable. 2017-01-10 11:50:17 +01:00
x86_64 Add VZEROUPPER to memset-vec-unaligned-erms.S [BZ #21081] 2017-01-30 10:59:31 -08:00