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Author SHA1 Message Date
Dmitry Vyukov abb825725e tsan: optimize __tsan_read/write16 
These callbacks are used for SSE vector accesses.
In some computational programs these accesses dominate.
Currently we do 2 uninlined 8-byte accesses to handle them.
Inline and optimize them similarly to unaligned accesses.
This reduces the vector access benchmark time from 8 to 3 seconds.

Depends on D112603.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D114594
 2021-12-21 11:33:28 +01:00
Dmitry Vyukov 2ddaffdc74 tsan: introduce kAccessExternalPC 
Add kAccessExternal memory access flag that denotes
memory accesses with PCs that may have kExternalPCBit set.
In preparation for MemoryAccess refactoring.
Currently unused, but will allow to skip a branch.

Depends on D107464.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D107465
 2021-08-04 18:03:49 +02:00
Vitaly Buka 6538aa8ce9 [NFC][tsan] Rename _inl.h to .inc 
Differential Revision: https://reviews.llvm.org/D107319
 2021-08-03 09:35:33 -07:00