[llvm] [DTLTO][LLVM] Integrated Distributed ThinLTO (DTLTO) (PR #127749)

[Fangrui Song via llvm-commits]

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@@ -1412,29 +1437,34 @@ Error ThinBackendProc::emitFiles(
     if (ImportFilesError)
       return ImportFilesError;
   }
+
+  // Optionally, store the imports files.
+  if (ImportsFiles)
+    processImportsFiles(
+        ModulePath, ModuleToSummariesForIndex,
+        [&](StringRef M) { ImportsFiles->get().push_back(M.str()); });
+
   return Error::success();
 }
 
 namespace {
-class InProcessThinBackend : public ThinBackendProc {
+class CGThinBackend : public ThinBackendProc {
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MaskRay wrote:

The base class needs a comment 

https://github.com/llvm/llvm-project/pull/127749