diff options
Diffstat (limited to 'lib/Support/Threading.cpp')
-rw-r--r-- | lib/Support/Threading.cpp | 29 |
1 files changed, 3 insertions, 26 deletions
diff --git a/lib/Support/Threading.cpp b/lib/Support/Threading.cpp index 33943efcd6..ff591aaa1d 100644 --- a/lib/Support/Threading.cpp +++ b/lib/Support/Threading.cpp @@ -7,7 +7,8 @@ // //===----------------------------------------------------------------------===// // -// This file implements llvm_start_multithreaded() and friends. +// This file implements helper functions for running LLVM in a multi-threaded +// environment. // //===----------------------------------------------------------------------===// @@ -19,43 +20,19 @@ using namespace llvm; -static bool multithreaded_mode = false; - sys::Mutex& llvm::llvm_get_global_lock() { static sys::Mutex global_lock; return global_lock; } -bool llvm::llvm_start_multithreaded() { +bool llvm::llvm_is_multithreaded() { #if LLVM_ENABLE_THREADS != 0 - assert(!multithreaded_mode && "Already multithreaded!"); - multithreaded_mode = true; - - // We fence here to ensure that all initialization is complete BEFORE we - // return from llvm_start_multithreaded(). - sys::MemoryFence(); return true; #else return false; #endif } -void llvm::llvm_stop_multithreaded() { -#if LLVM_ENABLE_THREADS != 0 - assert(multithreaded_mode && "Not currently multithreaded!"); - - // We fence here to insure that all threaded operations are complete BEFORE we - // return from llvm_stop_multithreaded(). - sys::MemoryFence(); - - multithreaded_mode = false; -#endif -} - -bool llvm::llvm_is_multithreaded() { - return multithreaded_mode; -} - #if LLVM_ENABLE_THREADS != 0 && defined(HAVE_PTHREAD_H) #include <pthread.h> |