[Remarks] Refactor remark diagnostic emission in a RemarkStreamer

This allows us to store more info about where we're emitting the remarks
without cluttering LLVMContext. This is needed for future support for
the remark section.

Differential Revision: https://reviews.llvm.org/D58996

llvm-svn: 355507

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/LTO/LTO.cpp b/llvm/lib/LTO/LTO.cpp
index 8e0d532..f6e34c5 100644
--- a/llvm/lib/LTO/LTO.cpp
+++ b/llvm/lib/LTO/LTO.cpp
@@ -24,6 +24,7 @@
 #include "llvm/IR/LegacyPassManager.h"
 #include "llvm/IR/Mangler.h"
 #include "llvm/IR/Metadata.h"
+#include "llvm/IR/RemarkStreamer.h"
 #include "llvm/LTO/LTOBackend.h"
 #include "llvm/LTO/SummaryBasedOptimizations.h"
 #include "llvm/Linker/IRMover.h"
@@ -1326,8 +1327,8 @@ lto::setupOptimizationRemarks(LLVMContext &Context,
       llvm::make_unique<ToolOutputFile>(Filename, EC, sys::fs::F_None);
   if (EC)
     return errorCodeToError(EC);
-  Context.setDiagnosticsOutputFile(
-      llvm::make_unique<yaml::Output>(DiagnosticFile->os()));
+  Context.setRemarkStreamer(
+      llvm::make_unique<RemarkStreamer>(Filename, DiagnosticFile->os()));
   DiagnosticFile->keep();
   return std::move(DiagnosticFile);
 }