commit 13cfd61cf58d7b1e6feff34b0c4778bdb9a46050
author Dimitry Andric <dimitry@andric.com> Mon Mar 25 18:37:14 2019 +0000
committer Dimitry Andric <dimitry@andric.com> Mon Mar 25 18:37:14 2019 +0000
tree 8381d8b0d78ca836850969fbc88fa5fdcfed5d4b
parent 5696c2b695b46645a964c0465f8ec274f2b3852e

Fix gettid warnings on FreeBSD

Summary:
[Split off from D59451 to get this fix in separately]

While building the 8.0 releases on FreeBSD, I encountered the following
warnings in openmp quite a few times:

```
In file included from projects/openmp/runtime/src/kmp_settings.cpp:27:
projects/openmp/runtime/src/kmp_wrapper_getpid.h:35:2: warning: #warning is a language extension [-Wpedantic]
#warning No gettid found, use getpid instead
 ^
projects/openmp/runtime/src/kmp_wrapper_getpid.h:35:2: warning: No gettid found, use getpid instead [-W#warnings]
2 warnings generated.
```

I added a gettid wrapper that uses FreeBSD's pthread_getthreadid_np(3)
function for this.

Reviewers: emaste, jlpeyton, krytarowski, mgorny, protze.joachim

Reviewed By: jlpeyton

Subscribers: jfb, jdoerfert, openmp-commits

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D59735

git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@356934 91177308-0d34-0410-b5e6-96231b3b80d8