Commit Graph

8 Commits

Author SHA1 Message Date
Chandler Carruth aaeada6c75 Fix another ordering constraint with windows.h and comment about
a revers constraint that we got right (by chance).

llvm-svn: 304792
2017-06-06 12:43:20 +00:00
Chandler Carruth 49471dfb31 Remove all of the legacy home-grown atomic operations LLVM provided
except for CompareAndSwap. That is the only one still being used
anywhere now that statistics have been moved onto std::atomic.

Also, add a warning to the header that we shouldn't introduce more uses
of these old style atomics and instead should be using C++11's
std::atomic facilities.

Really hoping that we can hammer out the last couple of users here and
replace them with something more localized and/or principled, but
figured this was a pretty good start. =]

Note that this patch will need to be reverted if r271504 needs to be
reverted as that removes the last user of these. However, the biggest
risk for that patch was MSVC 2013 and at least one bot has already
passed where it would have failed there. I've tested MSVC 2015 using
their web interfaces and other platforms seem fine, so I'm optimistic.

Differential Revision: http://reviews.llvm.org/D20901

llvm-svn: 271540
2016-06-02 17:11:11 +00:00
Hans Wennborg cfe341f5d0 Fix .cpp files claiming to be header files
llvm-svn: 211334
2014-06-20 01:36:00 +00:00
Reid Kleckner 64c75a59c9 Include intrin.h before windows.h as a workaround for the x64 self-host
On x64, windows.h doesn't include intrin.h for intrinsics.  It just
declares them in the global namespace and uses them, expecting the
compiler to lower it as a builtin.  We basically need to do this in
clang, eventually.

llvm-svn: 208023
2014-05-06 00:57:33 +00:00
Rafael Espindola 2f92f61098 XLC supports the same atomic functions as GCC, use them.
Patch by Kai.

llvm-svn: 167309
2012-11-02 20:54:45 +00:00
Dylan Noblesmith 9e5b178ecc drop unneeded config.h includes
llvm-svn: 147197
2011-12-22 23:04:07 +00:00
Eric Christopher 4418a60272 Rename LLVM_MULTITHREADED define and fix build without threads.
Patch by Arrowdodger.

llvm-svn: 140064
2011-09-19 20:43:23 +00:00
Michael J. Spencer 447762da85 Merge System into Support.
llvm-svn: 120298
2010-11-29 18:16:10 +00:00