[PATCH] D92104: [RegisterScavenging] Fix assert in scavengeRegisterBackwards

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/CodeGen/RegisterScavenging.cpp:578-579
   if (SpillBefore == MBB.end()) {
     LLVM_DEBUG(dbgs() << "Scavenged free register: " << printReg(Reg, TRI)
                << '\n');
     return Reg;
----------------
This debug message is going to be misleading since the scavenging failed


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92104/new/

https://reviews.llvm.org/D92104