increase-default-stack-size.patch

diff --git a/llvm/lib/Support/Threading.cpp b/llvm/lib/Support/Threading.cpp
index 04a1a9e19428..4198142ff0c6 100644
--- a/llvm/lib/Support/Threading.cpp
+++ b/llvm/lib/Support/Threading.cpp
@@ -87,7 +87,7 @@ unsigned llvm::ThreadPoolStrategy::compute_thread_count() const {
   // which is not enough for some/many normal LLVM compilations. This implements
   // the same interface as std::thread but requests the same stack size as the
   // main thread (8MB) before creation.
-const llvm::Optional<unsigned> llvm::thread::DefaultStackSize = 8 * 1024 * 1024;
+const llvm::Optional<unsigned> llvm::thread::DefaultStackSize = 256 * 1024 * 1024;
 #else
 const llvm::Optional<unsigned> llvm::thread::DefaultStackSize = None;
 #endif