Dmitry Vyukov afdcc96d9f tsan: optimize memory access functions ... The optimization is two-fold: First, the algorithm now uses SSE instructions to handle all 4 shadow slots at once. This makes processing faster. Second, if shadow contains the same access, we do not store the event into trace. This increases effective trace size, that is, tsan can remember up to 10x more previous memory accesses. Perofrmance impact: Before: [ OK ] DISABLED_BENCH.Mop8Read (2461 ms) [ OK ] DISABLED_BENCH.Mop8Write (1836 ms) After: [ OK ] DISABLED_BENCH.Mop8Read (1204 ms) [ OK ] DISABLED_BENCH.Mop8Write (976 ms) But this measures only fast-path. On large real applications the speedup is ~20%. Trace size impact: On app1: Memory accesses : 1163265870 Including same : 791312905 (68%) on app2: Memory accesses : 166875345 Including same : 150449689 (90%) 90% of filtered events means that trace size is effectively 10x larger. llvm-svn: 209897		2014-05-30 13:36:29 +00:00
..
BlocksRuntime	Move tests for BlocksRuntime and builtins to corresponding directories under test/	2014-02-14 09:47:31 +00:00
asan	[Sanitizers Win] Move duplicate Windows-specific compiler flags to a common CMake variable	2014-05-30 12:42:57 +00:00
builtins	Implement __divtf3 for IEEE quad precision.	2014-05-30 11:08:18 +00:00
dfsan	The newest versions of CMake require outputs of custom commands be in	2014-04-30 23:31:45 +00:00
interception	[ASan/Win] Use the new function interception approach to handle function wrappers too; wrap strlen() in DLLs	2014-05-22 12:03:40 +00:00
lsan	light up sanitizers for ARM, take 2	2014-05-29 22:38:13 +00:00
msan	tsan: do not use 64-bit atomics in allocator code	2014-05-28 15:22:12 +00:00
msandr	[msandr] Access app TLS directly in native exec mode.	2014-01-20 13:09:29 +00:00
profile	Go via uintptr_t when casting away constness, otherwise GCC will warn	2014-05-20 16:37:07 +00:00
sanitizer_common	tsan: optimize memory access functions	2014-05-30 13:36:29 +00:00
tsan	tsan: optimize memory access functions	2014-05-30 13:36:29 +00:00
ubsan	[ubsan] handle long double in 32-bit mode; part of the patch by Marek Polacek	2014-05-23 14:45:13 +00:00
CMakeLists.txt	Enable building of sanitizers on FreeBSD	2014-04-09 18:45:12 +00:00
Makefile.mk	Move original compiler-rt functions (libgcc replacement) to lib/builtins directory	2014-02-14 09:20:33 +00:00