13 files changed, 21 insertions, 38 deletions
diff --git a/include/llvm/IR/GVMaterializer.h b/include/llvm/IR/GVMaterializer.h
index dbe52bc2a3..229048a3ba 100644
--- a/include/llvm/IR/GVMaterializer.h
+++ b/include/llvm/IR/GVMaterializer.h
@@ -18,10 +18,10 @@
 #ifndef LLVM_IR_GVMATERIALIZER_H
 #define LLVM_IR_GVMATERIALIZER_H
 
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
-
+using std::error_code;
 class Function;
 class GlobalValue;
 class Module;
diff --git a/include/llvm/IR/Module.h b/include/llvm/IR/Module.h
index 0c309e89c9..7e99158873 100644
--- a/include/llvm/IR/Module.h
+++ b/include/llvm/IR/Module.h
@@ -23,7 +23,7 @@
 #include "llvm/IR/Metadata.h"
 #include "llvm/Support/CBindingWrapping.h"
 #include "llvm/Support/DataTypes.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
 
diff --git a/include/llvm/Object/Error.h b/include/llvm/Object/Error.h
index 3db9fa45e3..4d969393db 100644
--- a/include/llvm/Object/Error.h
+++ b/include/llvm/Object/Error.h
@@ -14,9 +14,10 @@
 #ifndef LLVM_OBJECT_ERROR_H
 #define LLVM_OBJECT_ERROR_H
 
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
+using std::error_code;
 namespace object {
 
 const std::error_category &object_category();
diff --git a/include/llvm/ProfileData/InstrProf.h b/include/llvm/ProfileData/InstrProf.h
index b44b92ef62..a3413d7008 100644
--- a/include/llvm/ProfileData/InstrProf.h
+++ b/include/llvm/ProfileData/InstrProf.h
@@ -16,10 +16,10 @@
 #ifndef LLVM_PROFILEDATA_INSTRPROF_H_
 #define LLVM_PROFILEDATA_INSTRPROF_H_
 
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
-
+using std::error_code;
 const std::error_category &instrprof_category();
 
 enum class instrprof_error {
diff --git a/include/llvm/Support/ErrorOr.h b/include/llvm/Support/ErrorOr.h
index c59f86f1b9..8664ced657 100644
--- a/include/llvm/Support/ErrorOr.h
+++ b/include/llvm/Support/ErrorOr.h
@@ -18,11 +18,12 @@
 
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/Support/AlignOf.h"
-#include "llvm/Support/system_error.h"
 #include <cassert>
+#include <system_error>
 #include <type_traits>
 
 namespace llvm {
+using std::error_code;
 template<class T, class V>
 typename std::enable_if< std::is_constructible<T, V>::value
                        , typename std::remove_reference<V>::type>::type &&
diff --git a/include/llvm/Support/FileSystem.h b/include/llvm/Support/FileSystem.h
index b5dcc665c7..678a3c19ca 100644
--- a/include/llvm/Support/FileSystem.h
+++ b/include/llvm/Support/FileSystem.h
@@ -33,11 +33,11 @@
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/TimeValue.h"
-#include "llvm/Support/system_error.h"
 #include <ctime>
 #include <iterator>
 #include <stack>
 #include <string>
+#include <system_error>
 #include <tuple>
 #include <vector>
 
@@ -46,6 +46,7 @@
 #endif
 
 namespace llvm {
+using std::error_code;
 namespace sys {
 namespace fs {
 
diff --git a/include/llvm/Support/LockFileManager.h b/include/llvm/Support/LockFileManager.h
index 523a781b87..dca28fa878 100644
--- a/include/llvm/Support/LockFileManager.h
+++ b/include/llvm/Support/LockFileManager.h
@@ -12,11 +12,11 @@
 #include "llvm/ADT/Optional.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 #include <utility> // for std::pair
 
 namespace llvm {
-
+using std::error_code;
 /// \brief Class that manages the creation of a lock file to aid
 /// implicit coordination between different processes.
 ///
diff --git a/include/llvm/Support/Memory.h b/include/llvm/Support/Memory.h
index 0996adb23f..acd7a04080 100644
--- a/include/llvm/Support/Memory.h
+++ b/include/llvm/Support/Memory.h
@@ -15,10 +15,11 @@
 #define LLVM_SUPPORT_MEMORY_H
 
 #include "llvm/Support/DataTypes.h"
-#include "llvm/Support/system_error.h"
 #include <string>
+#include <system_error>
 
 namespace llvm {
+using std::error_code;
 namespace sys {
 
   /// This class encapsulates the notion of a memory block which has an address
diff --git a/include/llvm/Support/MemoryBuffer.h b/include/llvm/Support/MemoryBuffer.h
index ddb1a992d1..6d6a5da180 100644
--- a/include/llvm/Support/MemoryBuffer.h
+++ b/include/llvm/Support/MemoryBuffer.h
@@ -19,10 +19,11 @@
 #include "llvm/Support/CBindingWrapping.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/DataTypes.h"
-#include "llvm/Support/system_error.h"
 #include <memory>
+#include <system_error>
 
 namespace llvm {
+using std::error_code;
 /// MemoryBuffer - This interface provides simple read-only access to a block
 /// of memory, and provides simple methods for reading files and standard input
 /// into a memory buffer.  In addition to basic access to the characters in the
diff --git a/include/llvm/Support/Process.h b/include/llvm/Support/Process.h
index 7f6441ea20..3ca3372afd 100644
--- a/include/llvm/Support/Process.h
+++ b/include/llvm/Support/Process.h
@@ -31,7 +31,7 @@
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/TimeValue.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
 class StringRef;
diff --git a/include/llvm/Support/Program.h b/include/llvm/Support/Program.h
index 4cf90ab732..c1269508e0 100644
--- a/include/llvm/Support/Program.h
+++ b/include/llvm/Support/Program.h
@@ -16,9 +16,10 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/Support/Path.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
+using std::error_code;
 namespace sys {
 
   /// This is the OS-specific separator for PATH like environment variables:
diff --git a/include/llvm/Support/YAMLTraits.h b/include/llvm/Support/YAMLTraits.h
index b69169bc79..a23faf65bb 100644
--- a/include/llvm/Support/YAMLTraits.h
+++ b/include/llvm/Support/YAMLTraits.h
@@ -24,7 +24,7 @@
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/YAMLParser.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 
 namespace llvm {
 namespace yaml {
diff --git a/include/llvm/Support/system_error.h b/include/llvm/Support/system_error.h
deleted file mode 100644
index 1b48ba935e..0000000000
--- a/include/llvm/Support/system_error.h
+++ /dev/null
@@ -1,23 +0,0 @@
-//===---------------------------- system_error ------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This is a temporary file to help with the transition to std::error_code.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SUPPORT_SYSTEM_ERROR_H
-#define LLVM_SUPPORT_SYSTEM_ERROR_H
-
-#include <system_error>
-
-namespace llvm {
-using std::error_code;
-}
-
-#endif