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| author | Chris Bieneman <beanz@apple.com> | 2014-10-30 22:07:09 +0000 |
|---|---|---|
| committer | Chris Bieneman <beanz@apple.com> | 2014-10-30 22:07:09 +0000 |
| commit | 14e2bcccfb84bf6025051797a41d1d406c93e19d (patch) | |
| tree | 3ff5cced078c45c2cbb2515c201716ed3cfd81ee /llvm/lib/Support/Unix/Threading.inc | |
| parent | c375809781abafe55d7e969d82765c0c0588e6c3 (diff) | |
| download | bcm5719-llvm-14e2bcccfb84bf6025051797a41d1d406c93e19d.tar.gz bcm5719-llvm-14e2bcccfb84bf6025051797a41d1d406c93e19d.zip | |
Removing the static initializer in ManagedStatic.cpp by using llvm_call_once to initialize the ManagedStatic mutex.
Summary:
This patch adds an llvm_call_once which is a wrapper around std::call_once on platforms where it is available and devoid of bugs. The patch also migrates the ManagedStatic mutex to be allocated using llvm_call_once.
These changes are philosophically equivalent to the changes added in r219638, which were reverted due to a hang on Win32 which was the result of a bug in the Windows implementation of std::call_once.
Reviewers: aaron.ballman, chapuni, chandlerc, rnk
Reviewed By: rnk
Subscribers: majnemer, llvm-commits
Differential Revision: http://reviews.llvm.org/D5922
llvm-svn: 220932
Diffstat (limited to 'llvm/lib/Support/Unix/Threading.inc')
| -rw-r--r-- | llvm/lib/Support/Unix/Threading.inc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Support/Unix/Threading.inc b/llvm/lib/Support/Unix/Threading.inc new file mode 100644 index 00000000000..35ec876904a --- /dev/null +++ b/llvm/lib/Support/Unix/Threading.inc @@ -0,0 +1,5 @@ +#include <thread> + +void llvm::call_once(once_flag& flag, void (*fptr)(void)) { + std::call_once(flag, fptr); +} |
