[PATCH] D92557: [MachineLICM] delete dead flag if the duplicated def outside of loop is dead.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/CodeGen/MachineLICM.cpp:1470
+      // Clear Dup dead flag if any, we reuse it for Reg.
+      const_cast<MachineInstr *>(Dup)->getOperand(Idx).setIsDead(false);
     }
----------------
Really should not be using const_cast here


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Comment at: llvm/test/CodeGen/PowerPC/machinelicm-cse-dead-flag.mir:4
+# RUN:   -verify-machineinstrs %s -o - | FileCheck %s
+---
+name: deadFlagAfterCSE
----------------
Add a comment explaining the test


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92557/new/

https://reviews.llvm.org/D92557