51 commits

Author	SHA1	Message	Date
Jim Huang	1966db91b7	Implement appropriate atomic_yield for Armv7+ ... Spin-wait often involves active sleep (better known as "pause"). x86 has a direct assembly instruction named "PAUSE" which has two roles: one is to hint at the operating systme that it might be ready to be swapped out, and the other is to create a small delay. That delay is useful as backoff from attempting to capture spinlocks, which improves the behavior of the system and allows more efficient lock acquisition. However, the "yield" instruction is not a good fit because it is effectively a nop on most Arm cores and does not cause enough delay to help backoff. The "isb" instruction is a barrier that, especially inside a loop, creates a small delay without consuming ALU resources.	2021-04-23 22:42:58 +00:00
Daan Leijen	71ac98ab08	rename <Windows.h> include to <windows.h> for mingw compatibility (see pr #367)	2021-02-22 13:04:11 -08:00
Daan Leijen	8d4444ef00	remove spurious parenthesis (#350)	2021-01-28 17:36:35 -08:00
Michael R. Crusoe	fb66ebea1d	add/improve atomic yields for SSE2, ARM*, PowerPC	2021-01-23 16:45:47 +01:00
David Carlier	33a10b4860	Restricts cpu yield instructions a little. ... adding clobber for ARM and preventing older 32 bits chips not supporting this instruction.	2020-12-12 12:19:04 +00:00
daan	4355ab7d20	add i64 atomics	2020-09-06 13:21:02 -07:00
daan	83bd352f37	roll back previous commit (use standard C++ atomics on msvc	2020-09-05 11:29:38 -07:00
daan	102a85937e	experiment with using non-c++ atomics on msvc	2020-09-05 11:27:06 -07:00
daan	2e311f341b	fix msvc compilation in C mode	2020-09-05 09:37:09 -07:00
daan	50de0d2358	fix C++ compilation with new atomics	2020-09-05 09:17:42 -07:00
daan	900c97664a	merge from dev-atomic	2020-09-03 09:47:01 -07:00
daan	76a68cd7af	bump version to 1.6.6 with new atomics	2020-09-03 09:45:53 -07:00
daan	b4825372ab	small compilation warning fixes (extra semicolon etc)	2020-08-29 19:30:38 -07:00
daan	5805c39916	enable --std=c99 compilation; fix mingw compilation	2020-08-09 17:55:17 -07:00
daan	ef8e5d18a6	replace atomics with C11/C++ atomics with explicit memory order; passes tsan. Issue #130	2020-07-26 18:01:33 -07:00
daan	a468430772	strengthen memory order of bit operations; insert memory fences	2020-07-26 14:19:30 -07:00
daan	a9f46dc86f	reduce memory order constraints for better efficiency on ARM etc	2020-07-26 11:58:02 -07:00
daan	ebf951e851	extra checks for atomic ptr exchange; extend mi_atomic_yield for win32	2020-07-26 00:15:57 -07:00
daan	09ade02429	bring inline with C11 atomics; no volatile and cas order of expected/desired	2020-07-25 22:52:27 -07:00
daan	e27422adca	switch to using C++ atomics in MSVC as well	2020-07-25 20:55:45 -07:00
daan	a9a21f39d8	fix memory order for CAS failure, issue #130	2020-07-23 15:52:02 -07:00
daan	b74caddcc1	fix memory order to acq_rel for atomic and/or, issue #130, thanks @mpoeter!	2020-07-23 15:00:49 -07:00
daan	8aa18d3661	fix TSAN warning for statistics maximum, issue #130	2020-07-22 14:16:18 -07:00
daan	444afa934f	fix memory order for weak CAS, issue #130, thanks @mary3000!	2020-07-22 13:58:00 -07:00
daan	2e1b4f512d	make max update in the stats atomic	2020-07-22 13:45:04 -07:00
daan	e3b16fe4ef	reduce type casts in atomic operations	2020-01-22 19:44:54 -08:00
daan	9d7ac76d93	fix compilation under Intel C compiler (icc)	2020-01-19 18:35:45 -08:00
daan	17ade3fca5	merge from dev	2019-11-13 17:52:20 -08:00
Marco Wang	29919a938d	Avoid the use of variable argument list function	2019-11-13 13:19:21 +08:00
daan	00e19cad9a	refactor region code, split out atomic bitmap	2019-11-06 21:37:23 -08:00
daan	fdfa6ed260	fix warnings at high warning level in msvc	2019-10-17 16:56:57 -07:00
daan	f0a12699c2	remove atomic_iread	2019-08-26 12:42:25 -07:00
daan	a654732d99	merge from dev new atomics	2019-08-26 12:30:03 -07:00
daan	7ce9c02fd4	make cas weak use release memory order; improve free assembly	2019-08-26 08:20:26 -07:00
daan	5c7c106d62	strengthen some atomic operations for weak memory models	2019-08-26 08:11:58 -07:00
daan	e8664001f7	Use standard _Atomic declarations and clean up atomic operations	2019-08-25 22:59:12 -07:00
daan	42dedb00ec	initial implementation of mi_os_reserve_huge_pages	2019-08-19 11:10:06 -07:00
daan	72d8608333	avoid thread over-allocation on initial region allocations	2019-07-15 17:35:43 -07:00
Frank Denis	9129ab0f64	Port to WebAssembly	2019-07-15 02:22:41 +02:00
daan	35b590de21	Merge branch 'dev' into dev-exp	2019-07-09 15:12:18 -07:00
daan	8ef37e6c0b	update atomic exchange memory model annotations for unix	2019-07-09 14:56:43 -07:00
daan	493dfc4b82	merge with dev	2019-07-08 15:42:42 -07:00
daan	7f0137a617	Fix compilation error with MSVC C++	2019-07-07 21:59:53 -07:00
daan	06bcea1761	Initial commit of separate memory region layer and improved large OS pages support, see 'memory.c'	2019-07-02 07:23:24 -07:00
Julian Fang	c19d3a27a8	Remove underscore prefixes to match c lanuguage standard	2019-06-26 12:57:13 +08:00
Frank Denis	236cd2e65c	fn() is not a valid C prototype	2019-06-25 12:16:36 +02:00
daan	a16d95375f	remove lock code from atomics (as it is unused)	2019-06-24 17:54:41 -07:00
Daan	fab7329c7a	Merge pull request #24 from jserv/clarify-license ... Clarify top-level license file	2019-06-23 10:47:38 -07:00
Jim Huang	b1d299b35b	Clarify top-level license file ... To be consistent with other Microsoft open source projects, each source file points to the file "LICENSE" in top-level directory.	2019-06-23 19:53:34 +08:00
Jim Huang	77991fccee	Implement ARM/Aarch64 atomic_yield fastpath	2019-06-23 16:53:49 +08:00