From 71d5a2540a98c81f5bcaeb48805e0e2881f530ef Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 16 Apr 2017 16:01:22 +0000
Subject: Vendor import of llvm trunk r300422:
 https://llvm.org/svn/llvm-project/llvm/trunk@300422

---
 lib/Support/RWMutex.cpp | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

(limited to 'lib/Support/RWMutex.cpp')

diff --git a/lib/Support/RWMutex.cpp b/lib/Support/RWMutex.cpp
index 3b6309cef21a..6c9781c4e2d6 100644
--- a/lib/Support/RWMutex.cpp
+++ b/lib/Support/RWMutex.cpp
@@ -13,7 +13,6 @@
 
 #include "llvm/Config/config.h"
 #include "llvm/Support/RWMutex.h"
-#include <cstring>
 
 //===----------------------------------------------------------------------===//
 //=== WARNING: Implementation here must contain only TRULY operating system
@@ -22,29 +21,31 @@
 
 #if !defined(LLVM_ENABLE_THREADS) || LLVM_ENABLE_THREADS == 0
 // Define all methods as no-ops if threading is explicitly disabled
-namespace llvm {
+
+using namespace llvm;
 using namespace sys;
-RWMutexImpl::RWMutexImpl() { }
-RWMutexImpl::~RWMutexImpl() { }
+
+RWMutexImpl::RWMutexImpl() = default;
+RWMutexImpl::~RWMutexImpl() = default;
+
 bool RWMutexImpl::reader_acquire() { return true; }
 bool RWMutexImpl::reader_release() { return true; }
 bool RWMutexImpl::writer_acquire() { return true; }
 bool RWMutexImpl::writer_release() { return true; }
-}
+
 #else
 
 #if defined(HAVE_PTHREAD_H) && defined(HAVE_PTHREAD_RWLOCK_INIT)
 
 #include <cassert>
+#include <cstdlib>
 #include <pthread.h>
-#include <stdlib.h>
 
-namespace llvm {
+using namespace llvm;
 using namespace sys;
 
 // Construct a RWMutex using pthread calls
 RWMutexImpl::RWMutexImpl()
-  : data_(nullptr)
 {
   // Declare the pthread_rwlock data structures
   pthread_rwlock_t* rwlock =
@@ -113,8 +114,6 @@ RWMutexImpl::writer_release()
   return errorcode == 0;
 }
 
-}
-
 #elif defined(LLVM_ON_UNIX)
 #include "Unix/RWMutex.inc"
 #elif defined( LLVM_ON_WIN32)
-- 
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