[llvm] r264335 - Add <atomic> to ThreadPool.h, since std::atomic is used

[Dimitry Andric via llvm-commits]

Tom, I'd like to merge this pretty trivial change to the 3.8 branch.  Is that OK with you?

-Dimitry

> On 24 Mar 2016, at 21:39, Dimitry Andric via llvm-commits <llvm-commits at lists.llvm.org> wrote:
> 
> Author: dim
> Date: Thu Mar 24 15:39:17 2016
> New Revision: 264335
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=264335&view=rev
> Log:
> Add <atomic> to ThreadPool.h, since std::atomic is used
> 
> Summary:
> Apparently, when compiling with gcc 5.3.2 for powerpc64, the order of
> headers is such that it gets an error about std::atomic<> use in
> ThreadPool.h, since this header is not included explicitly.  See also:
> 
> https://llvm.org/bugs/show_bug.cgi?id=27058
> 
> Fix this by including <atomic>.  Patch by Bryan Drewery.
> 
> Reviewers: chandlerc, joker.eph
> 
> Subscribers: bdrewery, llvm-commits
> 
> Differential Revision: http://reviews.llvm.org/D18460
> 
> Modified:
>    llvm/trunk/include/llvm/Support/ThreadPool.h
> 
> Modified: llvm/trunk/include/llvm/Support/ThreadPool.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/ThreadPool.h?rev=264335&r1=264334&r2=264335&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/Support/ThreadPool.h (original)
> +++ llvm/trunk/include/llvm/Support/ThreadPool.h Thu Mar 24 15:39:17 2016
> @@ -33,6 +33,7 @@
> #pragma warning(pop)
> #endif
> 
> +#include <atomic>
> #include <condition_variable>
> #include <functional>
> #include <memory>
> 
> 
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