Update the non-pthreads fallback for RWMutex on Unix

Tested this by #if 0'ing out the pthreads implementation, which
indicated that this fallback was not currently compiling successfully
and applying this patch resolves that.

Patch by Andy Chien.

llvm-svn: 220969

diff --git a/llvm/lib/Support/Unix/RWMutex.inc b/llvm/lib/Support/Unix/RWMutex.inc
index edcbd52..85a1043 100644 (file)
--- a/llvm/lib/Support/Unix/RWMutex.inc
+++ b/llvm/lib/Support/Unix/RWMutex.inc
@@ -26,26 +26,26 @@ using namespace sys;
 // will therefore deadlock if a thread tries to acquire a read lock
 // multiple times.
 
-RWMutexImpl::RWMutexImpl() : data_(new Mutex(false)) { }
+RWMutexImpl::RWMutexImpl() : data_(new MutexImpl(false)) { }
 
 RWMutexImpl::~RWMutexImpl() {
-  delete static_cast<Mutex *>(data_);
+  delete static_cast<MutexImpl *>(data_);
 }
 
 bool RWMutexImpl::reader_acquire() {
-  return static_cast<Mutex *>(data_)->acquire();
+  return static_cast<MutexImpl *>(data_)->acquire();
 }
 
 bool RWMutexImpl::reader_release() {
-  return static_cast<Mutex *>(data_)->release();
+  return static_cast<MutexImpl *>(data_)->release();
 }
 
 bool RWMutexImpl::writer_acquire() {
-  return static_cast<Mutex *>(data_)->acquire();
+  return static_cast<MutexImpl *>(data_)->acquire();
 }
 
 bool RWMutexImpl::writer_release() {
-  return static_cast<Mutex *>(data_)->release();
+  return static_cast<MutexImpl *>(data_)->release();
 }
 
 }