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

[Teresa Johnson via llvm-commits]

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@@ -426,6 +460,7 @@ class LTO {
     // The bitcode modules to compile, if specified by the LTO Config.
     std::optional<ModuleMapType> ModulesToCompile;
     DenseMap<GlobalValue::GUID, StringRef> PrevailingModuleForGUID;
+    DenseMap<StringRef, std::string> ModuleTriples;
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teresajohnson wrote:

Why is this needed? It seems to be set from the input file, so won't the distributed backend clang invocation already deduce this from the input bitcode file by default? If it must be added, maybe only populate it when dtlto is being used?

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