[PATCH] D136445: [TwoAddressInstruction] Fix stale LiveVariables info in processStatepoint

[Jay Foad via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG33f78d0903eb: [TwoAddressInstruction] Fix stale LiveVariables info in processStatepoint (authored by foad).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136445/new/

https://reviews.llvm.org/D136445

Files:
  llvm/lib/CodeGen/TwoAddressInstructionPass.cpp


Index: llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
===================================================================
--- llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -1706,6 +1706,7 @@
       LiveVariables::VarInfo &SrcInfo = LV->getVarInfo(RegB);
       LiveVariables::VarInfo &DstInfo = LV->getVarInfo(RegA);
       SrcInfo.AliveBlocks |= DstInfo.AliveBlocks;
+      DstInfo.AliveBlocks.clear();
       for (auto *KillMI : DstInfo.Kills)
         LV->addVirtualRegisterKilled(RegB, *KillMI, false);
     }


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