[PATCH] D73242: [WPD/LowerTypeTests] Delay lowering/removal of type tests until after ICP

[Eugene Leviant via Phabricator via cfe-commits]

evgeny777 added a comment.

This needs to be rebased



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Comment at: llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp:1784
+          ImportSummary->getTypeIdSummary(cast<MDString>(TypeId)->getString());
+      if (!TidSummary)
+        RemoveTypeTestAssumes();
----------------
tejohnson wrote:
> Here is the fix for the issue with the multi-stage clang bootstrap test failures described in D75201. I also restructured this code to try to make it clearer (rather than an early continue when we don't need to remove type test assumes, make it an explicit removal when needed).
> 
> Added new test llvm/test/ThinLTO/X86/type_test_noindircall.ll for this.
Can you please also test the case when LTO unit is split?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D73242/new/

https://reviews.llvm.org/D73242