Eric Fiselier c6e466911f [libcxx] Add atomic_support.h header to src that handles needed atomic operations. ... Summary: In some places in libc++ we need to use the `__atomic_*` builtins. This patch adds a header that provides access to those builtins in a uniform way from within the dylib source. If the compiler building the dylib does not support these builtins then a warning is issued. Only relaxed loads are needed within the headers. A singe function to do these relaxed loads has been added to `<memory>`. This patch applies the new atomic builtins to `__shared_count` and `call_once`. Reviewers: mclow.lists Subscribers: majnemer, jroelofs, cfe-commits Differential Revision: http://reviews.llvm.org/D10406 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@241532 91177308-0d34-0410-b5e6-96231b3b80d8		2015-07-07 00:27:16 +00:00
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libcxx	[libcxx] Add atomic_support.h header to src that handles needed atomic operations.	2015-07-07 00:27:16 +00:00
std	Automatically detect and use clang verify in failure tests.	2015-07-06 19:56:45 +00:00
support	Forgot the support include file in r241091	2015-06-30 18:16:12 +00:00
CMakeLists.txt	Make support for thread-unsafe C functions optional.	2015-06-24 08:44:38 +00:00
lit.cfg	[libcxx] Allow use of ShTest in libc++ tests along with other changes.	2015-01-22 18:05:58 +00:00
lit.site.cfg.in	Make support for thread-unsafe C functions optional.	2015-06-24 08:44:38 +00:00
nothing_to_do.pass.cpp	Test commit: Reverting whitespace changes	2014-07-17 05:10:03 +00:00
testit	Apply patch for Albert Wong: 'Modify testit to allow filtering tests by prefixes'.	2014-01-15 16:28:42 +00:00