Torvald Riegel ca6e601a9d Use C11-like atomics instead of plain memory accesses in x86 lock elision. ... This uses atomic operations to access lock elision metadata that is accessed concurrently (ie, adapt_count fields). The size of the data is less than a word but accessed only with atomic loads and stores; therefore, we add support for shorter-size atomic load and stores too. * include/atomic.h (__atomic_check_size_ls): New. (atomic_load_relaxed, atomic_load_acquire, atomic_store_relaxed, atomic_store_release): Use it. * sysdeps/x86/elide.h (ACCESS_ONCE): Remove. (elision_adapt, ELIDE_LOCK): Use atomics. * sysdeps/unix/sysv/linux/x86/elision-lock.c (__lll_lock_elision): Use atomics and improve code comments. * sysdeps/unix/sysv/linux/x86/elision-trylock.c (__lll_trylock_elision): Likewise.		2016-12-05 16:19:43 +01:00
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bits	Refactor FP_ILOGB* out of bits/mathdef.h.	2016-12-01 02:56:55 +00:00
fpu	Fix x86_64 -mfpmath=387 float_t, double_t (bug 20787).	2016-11-23 17:56:31 +00:00
cacheinfo.c	X86: Don't assert on older Intel CPUs [BZ #20647]	2016-10-12 08:22:52 -07:00
cpu-features-offsets.sym
cpu-features.c	Bug 20689: Fix FMA and AVX2 detection on Intel	2016-10-17 19:39:54 -04:00
cpu-features.h	X86-64: Add _dl_runtime_resolve_avx[512]_{opt|slow} [BZ #20508]	2016-09-06 08:51:07 -07:00
dl-get-cpu-features.c
elide.h	Use C11-like atomics instead of plain memory accesses in x86 lock elision.	2016-12-05 16:19:43 +01:00
fpu_control.h
init-arch.h
libc-start.c
linkmap.h
Makefile
string_private.h
tininess.h
tst-get-cpu-features-static.c
tst-get-cpu-features.c
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