Fix -DLLVM_ENABLE_THREADS=OFF build after r302748

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302806 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/Parallel.cpp b/lib/Support/Parallel.cpp
index c140b13d7e0b82a6ceddf7dfc21cccd5f44863a2..ab2cfdebf07d4507d4464f0eba0b0670a7506a26 100644 (file)
--- a/lib/Support/Parallel.cpp
+++ b/lib/Support/Parallel.cpp
@@ -127,6 +127,7 @@ Executor *Executor::getDefaultExecutor() {
 #endif
 }
 
+#if LLVM_ENABLE_THREADS
 void parallel::detail::TaskGroup::spawn(std::function<void()> F) {
   L.inc();
   Executor::getDefaultExecutor()->add([&, F] {
@@ -134,3 +135,4 @@ void parallel::detail::TaskGroup::spawn(std::function<void()> F) {
     L.dec();
   });
 }
+#endif