Update LLVM for rebase to r212749.

Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls

Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18

1 files changed, 6 insertions, 5 deletions

diff --git a/tools/llvm-mcmarkup/llvm-mcmarkup.cpp b/tools/llvm-mcmarkup/llvm-mcmarkup.cpp
index f3a3e45..a878f11 100644
--- a/tools/llvm-mcmarkup/llvm-mcmarkup.cpp
+++ b/tools/llvm-mcmarkup/llvm-mcmarkup.cpp
@@ -19,7 +19,7 @@
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
+#include <system_error>
 using namespace llvm;
 
 static cl::list<std::string>
@@ -135,12 +135,13 @@ MarkupTag MarkupParser::parseTag() {
 }
 
 static void parseMCMarkup(StringRef Filename) {
-  std::unique_ptr<MemoryBuffer> BufferPtr;
-  if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, BufferPtr)) {
-    errs() << ToolName << ": " << ec.message() << '\n';
+  ErrorOr<std::unique_ptr<MemoryBuffer>> BufferPtr =
+      MemoryBuffer::getFileOrSTDIN(Filename);
+  if (std::error_code EC = BufferPtr.getError()) {
+    errs() << ToolName << ": " << EC.message() << '\n';
     return;
   }
-  MemoryBuffer *Buffer = BufferPtr.release();
+  MemoryBuffer *Buffer = BufferPtr->release();
 
   SourceMgr SrcMgr;