Nick Lewycky
53185e9016
Add support for tsan annotations (thread sanitizer, a valgrind-based tool).
...
These annotations are disabled entirely when either ENABLE_THREADS is off, or
building a release build. When enabled, they add calls to functions with no
statements to ManagedStatic's getters.
Use these annotations to inform tsan that the race used inside ManagedStatic
initialization is actually benign. Thanks to Kostya Serebryany for helping
write this patch!
llvm-svn: 144567
2011-11-14 20:50:16 +00:00
Michael J. Spencer
d5ec932c3a
Merge System into Support.
...
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
Owen Anderson
6c2af9f474
Remove dead code. ManagedCleanup is unused, and contained a serious bug in that
...
the provided cleanup function is never actually called.
llvm-svn: 113284
2010-09-07 20:53:39 +00:00
Alisdair Meredith
b74a1f546f
Resolve undefined behaviour when ManagedStatic is instantiated with a fixed-length array type.
...
llvm-svn: 75149
2009-07-09 17:26:16 +00:00
Owen Anderson
64a3af667e
Fences are expensive. Avoid doing them when we're not in multithreaded mode.
...
llvm-svn: 73777
2009-06-19 17:50:11 +00:00
Owen Anderson
a59f91c08d
Move Threading.[h|cpp] from Support to System.
...
llvm-svn: 73707
2009-06-18 16:54:52 +00:00
Owen Anderson
b7cdd1a395
Split the thread-related APIs out into their own file, and add a few more
...
calls for convenience.
llvm-svn: 73512
2009-06-16 17:33:51 +00:00
Owen Anderson
4f6709ebd6
Have llvm_start_multithreaded return a bool indicating whether multithreaded
...
initialization succeeded or not, rather than just asserting.
llvm-svn: 72182
2009-05-20 21:03:06 +00:00
Owen Anderson
47460293cf
Add llvm_start_multithreaded(), which starts up the LLVM internals in thread-safe mode. Provide double-check locking
...
initialization of ManagedStatic's when running in thread-safe mode.
llvm-svn: 72151
2009-05-20 00:39:20 +00:00
Owen Anderson
a5fc80c2c6
Back out the thread-safe ManagedStatic for now. Too many people have too many problems with it for the moment.
...
llvm-svn: 71931
2009-05-16 07:20:52 +00:00
Owen Anderson
f77567f7ac
Factor out some common code, fix more typoes, and add a memory fence that might be needed.
...
llvm-svn: 71853
2009-05-15 08:22:07 +00:00
Owen Anderson
c69f0d9a11
Fix an unfortunate typo.
...
llvm-svn: 71852
2009-05-15 08:07:23 +00:00
Owen Anderson
7ded7b9a62
Now with working on Leopard!
...
llvm-svn: 71819
2009-05-15 00:01:40 +00:00
Owen Anderson
3451ee22e8
Make ManagedStatic threadsafe by using atomic operations.
...
llvm-svn: 71796
2009-05-14 21:26:50 +00:00
Misha Brukman
7ee4196e74
Removed trailing whitespace.
...
llvm-svn: 65196
2009-02-20 22:51:36 +00:00
Chris Lattner
e0b1ee937a
Don't attribute in file headers anymore. See llvmdev for the
...
discussion of this change. Boy are my fingers tired. ;-)
llvm-svn: 45411
2007-12-29 19:59:42 +00:00
Chris Lattner
08e1470365
add a way to register an arbitrary cleanup function.
...
llvm-svn: 34442
2007-02-20 06:08:37 +00:00
Chris Lattner
e5eb7d79d3
add helper method.
...
llvm-svn: 34155
2007-02-10 19:54:24 +00:00
Chris Lattner
30bf130327
add a helper to call llvm_shutdown()
...
llvm-svn: 32249
2006-12-06 01:01:14 +00:00
Chris Lattner
30da1ba0a2
new helper class to provide more explicit management of static ctor/dtors.
...
llvm-svn: 30638
2006-09-28 00:31:55 +00:00
