[PATCH] D67722: [PowerPC] Remove redundant CRSET/CRUNSET in custom lowering of known CR bit spills

[Amy Kwan via Phabricator via llvm-commits]

amyk added inline comments.


================
Comment at: llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp:759
       break;
+    if (Ins->readsRegister(SrcReg, TRI))
+      SeenUse = true;
----------------
Maybe we can add an extra comment here, like how there is a comment above the `modifiesRegister()` call?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67722/new/

https://reviews.llvm.org/D67722