[PATCH] D52432: [PowerPC] Remove self-copies in pre-emit peephole

Hal Finkel via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Sep 25 07:15:53 PDT 2018


hfinkel accepted this revision.
hfinkel added a comment.
This revision is now accepted and ready to land.

LGTM



================
Comment at: lib/Target/PowerPC/PPCPreEmitPeephole.cpp:69
+          unsigned Opc = MI.getOpcode();
+          // Detect self copies.
+          if (Opc == PPC::OR || Opc == PPC::OR8 || Opc == PPC::FMR ||
----------------
Please add a comment here stating that these can come out of the AADB.


Repository:
  rL LLVM

https://reviews.llvm.org/D52432





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