[llvm] ThinLTO: Add flag to print uselistorder in bitcode writer pass (PR #133230)

[Teresa Johnson via llvm-commits]

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@@ -487,9 +488,9 @@ void splitAndWriteThinLTOBitcode(
   // be used in the backends, and use that in the minimized bitcode
   // produced for the full link.
   ModuleHash ModHash = {{0}};
-  W.writeModule(M, /*ShouldPreserveUseListOrder=*/false, &Index,
+  W.writeModule(M, ShouldPreserveUseListOrder, &Index,
                 /*GenerateHash=*/true, &ModHash);
-  W.writeModule(*MergedM, /*ShouldPreserveUseListOrder=*/false, &MergedMIndex);
+  W.writeModule(*MergedM, ShouldPreserveUseListOrder, &MergedMIndex);
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teresajohnson wrote:

Still needs a split bitcode test, see my comment above for an example test that can be modified (split.ll).

https://github.com/llvm/llvm-project/pull/133230