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Alex Richardson 0f81598cc1 [libc++] Add a 'is-lockfree-runtime-function' lit feature 
On macOS 10.14 /usr/lib/system/libcompiler_rt.dylib contains all the
`__atomic_load*`, etc. functions but does not include the `__atomic_is_lock_free`
function. The lack of this function causes the non-lockfree-atomics feature
to be set to false even though large atomic operations are actually
supported, it's just the is_lock_free() function that is missing.

This is required so that the !non-lockfree-atomics feature can be used
to XFAIL tests that require runtime library support (D88818).

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D91911
 		2020-12-22 11:56:20 +00:00
..
benchmarks [runtimes] Revert the libc++ __config_site change 2020-10-23 09:41:48 -04:00
cmake [libc++] Clarify how we pick the typeinfo comparison 2020-11-18 16:58:45 -05:00
docs [libc++] [P1164] [C++20] Make fs::create_directory() error if there is already a non-directory. 2020-12-10 08:40:27 +01:00
include [libcxx] Convert paths to/from the right narrow code page for narrow strings on windows 2020-12-18 11:24:52 +02:00
lib [libc++] Use TARGET_FILE instead of TARGET_SONAME_FILE when generating ABI lists 2020-12-11 12:12:40 -05:00
src [libcxx] Fix the preexisting directory_iterator code for windows 2020-12-18 11:24:53 +02:00
test [libc++] Add a 'is-lockfree-runtime-function' lit feature 2020-12-22 11:56:20 +00:00
utils [libc++] Add a 'is-lockfree-runtime-function' lit feature 2020-12-22 11:56:20 +00:00
www [libc++] [docs] Migrate C++ status pages to RestructuredText (RST). 2020-11-26 10:01:09 +01:00
.clang-format
…
.gitignore [libcxx] Fix .gitignore to not exclude test directories 2020-03-25 17:52:23 -07:00
CMakeLists.txt [libc++] [libc++abi] Use C++20 standard. 2020-11-22 15:57:25 +01:00
CREDITS.TXT [libcxx] Adds [concept.same] 2020-04-08 18:00:13 -04:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
TODO.TXT [libc++][NFC] Remove outdated TODO item 2020-07-08 13:04:33 -04:00
appveyor-reqs-install.cmd Attempt to upgrade compiler used by appveyor builds 2019-04-03 20:40:01 +00:00
appveyor.yml disable appveyor config for MSVC 2015 2019-04-03 20:36:51 +00:00