Revert "[Remarks] Refactor optimization remarks setup"

This reverts commit 6e6e3af55bb97e1a4c97375c15a2b0099120c5a7.

This breaks greendragon.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@363343 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CodeGenAction.cpp

@@ -262,32 +262,35 @@ namespace clang {
           Ctx.getDiagnosticHandler();
       Ctx.setDiagnosticHandler(llvm::make_unique<ClangDiagnosticHandler>(
         CodeGenOpts, this));
+      Ctx.setDiagnosticsHotnessRequested(CodeGenOpts.DiagnosticsWithHotness);
+      if (CodeGenOpts.DiagnosticsHotnessThreshold != 0)
+        Ctx.setDiagnosticsHotnessThreshold(
+            CodeGenOpts.DiagnosticsHotnessThreshold);
+
+      std::unique_ptr<llvm::ToolOutputFile> OptRecordFile;
+      if (!CodeGenOpts.OptRecordFile.empty()) {
+        std::error_code EC;
+        OptRecordFile = llvm::make_unique<llvm::ToolOutputFile>(
+            CodeGenOpts.OptRecordFile, EC, sys::fs::F_None);
+        if (EC) {
+          Diags.Report(diag::err_cannot_open_file) <<
+            CodeGenOpts.OptRecordFile << EC.message();
+          return;
+        }
 
-      Expected<std::unique_ptr<llvm::ToolOutputFile>> OptRecordFileOrErr =
-          setupOptimizationRemarks(Ctx, CodeGenOpts.OptRecordFile,
-                                   CodeGenOpts.OptRecordPasses,
-                                   CodeGenOpts.DiagnosticsWithHotness,
-                                   CodeGenOpts.DiagnosticsHotnessThreshold);
-
-      if (Error E = OptRecordFileOrErr.takeError()) {
-        handleAllErrors(
-            std::move(E),
-            [&](const RemarkSetupFileError &E) {
-              Diags.Report(diag::err_cannot_open_file)
-                  << CodeGenOpts.OptRecordFile << E.message();
-            },
-            [&](const RemarkSetupPatternError &E) {
-              Diags.Report(diag::err_drv_optimization_remark_pattern)
-                  << E.message() << CodeGenOpts.OptRecordPasses;
-            });
-        return;
-      }
-      std::unique_ptr<llvm::ToolOutputFile> OptRecordFile =
-          std::move(*OptRecordFileOrErr);
+        Ctx.setRemarkStreamer(llvm::make_unique<RemarkStreamer>(
+            CodeGenOpts.OptRecordFile,
+            llvm::make_unique<remarks::YAMLSerializer>(OptRecordFile->os())));
 
-      if (OptRecordFile &&
-          CodeGenOpts.getProfileUse() != CodeGenOptions::ProfileNone)
-        Ctx.setDiagnosticsHotnessRequested(true);
+        if (!CodeGenOpts.OptRecordPasses.empty())
+          if (Error E = Ctx.getRemarkStreamer()->setFilter(
+                  CodeGenOpts.OptRecordPasses))
+            Diags.Report(diag::err_drv_optimization_remark_pattern)
+                << toString(std::move(E)) << CodeGenOpts.OptRecordPasses;
+
+        if (CodeGenOpts.getProfileUse() != CodeGenOptions::ProfileNone)
+          Ctx.setDiagnosticsHotnessRequested(true);
+      }
 
       // Link each LinkModule into our module.
       if (LinkInModules())