6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-15 05:24:01 +00:00
Code Issues Projects Releases Wiki Activity

Users of the llvm global mutex must now acquire it manually.

Browse Source 
This allows the mutex to be acquired in a guarded, RAII fashion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211066 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zachary Turner
2014-06-16 22:39:38 +00:00
parent 8b3a8d6343
commit 9be5c8ca6b
5 changed files with 16 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
lib/Support/Threading.cpp
View File

@ -21,13 +21,15 @@ using namespace llvm;
static bool multithreaded_mode = false;
static sys::Mutex* global_lock = nullptr;
sys::Mutex& llvm::llvm_get_global_lock() {
static sys::Mutex global_lock;
return global_lock;
}
bool llvm::llvm_start_multithreaded() {
#if LLVM_ENABLE_THREADS != 0
assert(!multithreaded_mode && "Already multithreaded!");
multithreaded_mode = true;
global_lock = new sys::Mutex(true);
// We fence here to ensure that all initialization is complete BEFORE we
// return from llvm_start_multithreaded().
@ -47,7 +49,6 @@ void llvm::llvm_stop_multithreaded() {
sys::MemoryFence();
multithreaded_mode = false;
delete global_lock;
#endif
}
@ -55,14 +56,6 @@ bool llvm::llvm_is_multithreaded() {
return multithreaded_mode;
}
void llvm::llvm_acquire_global_lock() {
if (multithreaded_mode) global_lock->acquire();
}
void llvm::llvm_release_global_lock() {
if (multithreaded_mode) global_lock->release();
}
#if LLVM_ENABLE_THREADS != 0 && defined(HAVE_PTHREAD_H)
#include <pthread.h>