Commit Graph

11 Commits

Author SHA1 Message Date
Dimitry Andric
d8a3f46e15 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

llvm-svn: 264335
2016-03-24 20:39:17 +00:00
Reid Kleckner
ba7cf44fda Wrap include of <future> in some warning suppression pragmas
Eventually we may need to sink this include to the .cpp file or
something to suport LLVM_ENABLE_THREADS=OFF, but this solves my
immediate problem of fixing the build.

llvm-svn: 255682
2015-12-15 22:10:30 +00:00
Reid Kleckner
f034b3c900 Fix clang-cl self-host with MSVC 2013 STL std::bind implementation
llvm-svn: 255678
2015-12-15 21:41:58 +00:00
Teresa Johnson
ff38b7b132 Fix template parameter pack handling in ThreadPool
Fixes passing of template parameter pack via std::forward and add
unittest.

llvm-svn: 255617
2015-12-15 04:44:02 +00:00
Nico Weber
630645d32a Try to let r255604 have an effect.
llvm-svn: 255611
2015-12-15 03:14:19 +00:00
Mehdi Amini
02dd190506 Add specific header for MSVC to be able to build with LLVM_ENABLE_THREADS=OFF
Follow-up to the ThreadPool library

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 255604
2015-12-15 02:32:03 +00:00
Mehdi Amini
54fc055738 Add a C++11 ThreadPool implementation in LLVM
This is a very simple implementation of a thread pool using C++11
thread. It accepts any std::function<void()> for asynchronous
execution. Individual task can be synchronize using the returned
future, or the client can block on the full queue completion.

In case LLVM is configured with Threading disabled, it falls back
to sequential execution using std::async with launch:deferred.

This is intended to support parallelism for ThinLTO processing in
linker plugin, but is generic enough for any other uses.

This is a recommit of r255444 ; trying to workaround a bug in the
MSVC 2013 standard library. I think I was hit by:

 http://connect.microsoft.com/VisualStudio/feedbackdetail/view/791185/std-packaged-task-t-where-t-is-void-or-a-reference-class-are-not-movable

Recommit of r255589, trying to please g++ as well.

Differential Revision: http://reviews.llvm.org/D15464

From: mehdi_amini <mehdi_amini@91177308-0d34-0410-b5e6-96231b3b80d8>
llvm-svn: 255593
2015-12-15 00:59:19 +00:00
Mehdi Amini
5acecbc1ec Revert "Add a C++11 ThreadPool implementation in LLVM"
This reverts commit r255589. Breaks g++

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 255591
2015-12-15 00:42:44 +00:00
Mehdi Amini
dbdd929681 Add a C++11 ThreadPool implementation in LLVM
This is a very simple implementation of a thread pool using C++11
thread. It accepts any std::function<void()> for asynchronous
execution. Individual task can be synchronize using the returned
future, or the client can block on the full queue completion.

In case LLVM is configured with Threading disabled, it falls back
to sequential execution using std::async with launch:deferred.

This is intended to support parallelism for ThinLTO processing in
linker plugin, but is generic enough for any other uses.

This is a recommit of r255444 ; trying to workaround a bug in the
MSVC 2013 standard library. I think I was hit by:

 http://connect.microsoft.com/VisualStudio/feedbackdetail/view/791185/std-packaged-task-t-where-t-is-void-or-a-reference-class-are-not-movable

Differential Revision: http://reviews.llvm.org/D15464

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 255589
2015-12-15 00:38:05 +00:00
Nico Weber
c244167f92 Revert r255444.
It doesn't build on Windows and broke the Windows LLD and LLDB bots:
http://lab.llvm.org:8011/builders/lld-x86_64-win7/builds/27693/steps/build_Lld/logs/stdio
http://lab.llvm.org:8011/builders/lldb-x86-windows-msvc/builds/13468/steps/build/logs/stdio

llvm-svn: 255446
2015-12-13 04:14:39 +00:00
Mehdi Amini
865fad06c6 Add a C++11 ThreadPool implementation in LLVM
This is a very simple implementation of a thread pool using C++11
thread. It accepts any std::function<void()> for asynchronous
execution. Individual task can be synchronize using the returned
future, or the client can block on the full queue completion.

In case LLVM is configured with Threading disabled, it falls back
to sequential execution using std::async with launch:deferred.

This is intended to support parallelism for ThinLTO processing in
linker plugin, but is generic enough for any other uses.

Differential Revision: http://reviews.llvm.org/D15464

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 255444
2015-12-12 22:55:25 +00:00