[Tooling] Expose ExecutorConcurrency option.

D65628 requires a flag to specify the number of threads for a clang-doc step. It would be good to use ExecutorConcurrency after exposing it instead of creating a new one that has the same purpose.

Differential Revision: https://reviews.llvm.org/D65833

llvm-svn: 368196

2 files changed, 2 insertions, 1 deletions

diff --git a/clang/include/clang/Tooling/AllTUsExecution.h b/clang/include/clang/Tooling/AllTUsExecution.h
index e670f54234a..f051119392f 100644
--- a/clang/include/clang/Tooling/AllTUsExecution.h
+++ b/clang/include/clang/Tooling/AllTUsExecution.h
@@ -71,6 +71,7 @@ private:
   unsigned ThreadCount;
 };
 
+extern llvm::cl::opt<unsigned> ExecutorConcurrency;
 extern llvm::cl::opt<std::string> Filter;
 
 } // end namespace tooling
diff --git a/clang/lib/Tooling/AllTUsExecution.cpp b/clang/lib/Tooling/AllTUsExecution.cpp
index ca9db7a561b..6bda195f697 100644
--- a/clang/lib/Tooling/AllTUsExecution.cpp
+++ b/clang/lib/Tooling/AllTUsExecution.cpp
@@ -147,7 +147,7 @@ llvm::Error AllTUsToolExecutor::execute(
   return llvm::Error::success();
 }
 
-static llvm::cl::opt<unsigned> ExecutorConcurrency(
+llvm::cl::opt<unsigned> ExecutorConcurrency(
     "execute-concurrency",
     llvm::cl::desc("The number of threads used to process all files in "
                    "parallel. Set to 0 for hardware concurrency. "