[PATCH] D129200: [MachineVerifier] Try harder to verify LiveStacks

[Jay Foad via Phabricator via llvm-commits]

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Verify the LiveStacks analysis after a pass that claims to preserve it,
even if there are no further passes (apart from the verifier itself)
that would use the analysis.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D129200

Files:
  llvm/lib/CodeGen/MachineVerifier.cpp


Index: llvm/lib/CodeGen/MachineVerifier.cpp
===================================================================
--- llvm/lib/CodeGen/MachineVerifier.cpp
+++ llvm/lib/CodeGen/MachineVerifier.cpp
@@ -293,6 +293,7 @@
       }
 
     void getAnalysisUsage(AnalysisUsage &AU) const override {
+      AU.addUsedIfAvailable<LiveStacks>();
       AU.setPreservesAll();
       MachineFunctionPass::getAnalysisUsage(AU);
     }


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