glibc/sysdeps
Aurelien Jarno b9cbb8dd48 x86-64: Require BMI2 for AVX2 strncmp implementation
The AVX2 strncmp implementations uses the 'bzhi' instruction, which
belongs to the BMI2 CPU feature.

NB: It also uses the 'tzcnt' BMI1 instruction, but it is executed as BSF
as BSF if the CPU doesn't support TZCNT, and produces the same result
for non-zero input.

Partially fixes: b77b06e0e2 ("x86: Optimize strcmp-avx2.S")
Partially resolves: BZ #29611

Reviewed-by: Noah Goldstein  <goldstein.w.n@gmail.com>
(cherry picked from commit fc7de1d9b9)
2022-10-04 00:00:59 +02:00
..
aarch64 elf: Fix runtime linker auditing on aarch64 (BZ #26643) 2022-04-12 13:33:10 -04:00
alpha elf: Add _dl_audit_pltexit 2022-04-08 14:18:12 -04:00
arc elf: Fix dynamic-link.h usage on rtld.c 2022-04-08 14:18:11 -04:00
arm elf: Add _dl_audit_pltexit 2022-04-08 14:18:12 -04:00
csky elf: Fix dynamic-link.h usage on rtld.c 2022-04-08 14:18:11 -04:00
generic sysdeps: Add 'get_fast_jitter' interace in fast-jitter.h 2022-09-28 07:34:31 -07:00
gnu hurd: Fix glob lstat compatibility 2021-07-22 20:31:52 +02:00
hppa hppa: Remove _dl_skip_args usage (BZ# 29165) 2022-06-10 09:13:54 -03:00
htl htl: Do not expose pthread hidden proto outside libpthread 2021-07-18 20:25:33 +00:00
hurd
i386 i386: Regenerate ulps 2022-04-27 21:20:43 -04:00
ia64 elf: Issue la_symbind for bind-now (BZ #23734) 2022-04-12 13:32:59 -04:00
ieee754 Update math: redirect roundeven function 2021-06-27 07:56:57 -07:00
m68k elf: Add _dl_audit_pltexit 2022-04-08 14:18:12 -04:00
mach socket: Check lengths before advancing pointer in CMSG_NXTHDR 2022-08-22 18:59:26 +02:00
microblaze elf: Fix dynamic-link.h usage on rtld.c 2022-04-08 14:18:11 -04:00
mips elf: Add _dl_audit_pltexit 2022-04-08 14:18:12 -04:00
nios2 nios2: Remove _dl_skip_args usage (BZ# 29187) 2022-06-10 09:15:00 -03:00
nptl nptl: Add backoff mechanism to spinlock loop 2022-09-28 07:34:53 -07:00
posix socket: Use 64 bit stat for isfdtype (BZ# 29209) 2022-06-01 13:34:51 -03:00
powerpc powerpc: Fix VSX register number on __strncpy_power9 [BZ #29197] 2022-06-07 15:34:20 -03:00
pthread nptl: Fix __libc_cleanup_pop_restore asynchronous restore (BZ#29214) 2022-06-08 17:15:08 -03:00
riscv elf: Fix dynamic-link.h usage on rtld.c 2022-04-08 14:18:11 -04:00
s390 S390: Enable static PIE 2022-05-19 17:15:57 +02:00
sh elf: Add _dl_audit_pltexit 2022-04-08 14:18:12 -04:00
sparc elf: Add _dl_audit_pltexit 2022-04-08 14:18:12 -04:00
unix socket: Check lengths before advancing pointer in CMSG_NXTHDR 2022-08-22 18:59:26 +02:00
wordsize-32
wordsize-64
x86 x86: include BMI1 and BMI2 in x86-64-v3 level 2022-10-04 00:00:58 +02:00
x86_64 x86-64: Require BMI2 for AVX2 strncmp implementation 2022-10-04 00:00:59 +02:00