[PATCH] D52345: [PowerPC] optimize conditional branch on CRSET/CRUNSET
Nemanja Ivanovic via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 24 14:23:08 PDT 2018
nemanjai added inline comments.
================
Comment at: lib/Target/PowerPC/PPCPreEmitPeephole.cpp:109
+ auto RemoveMBB = [](MachineBasicBlock *MBB) {
+ for (auto Succ: MBB->successors())
+ MBB->removeSuccessor(Succ);
----------------
Any one of these successors now might have become unreachable, right? Should this just be a static recursive function?
Seems that it would be nice if we could just run a pass that eliminates unreachable blocks after this pass.
https://reviews.llvm.org/D52345
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