[PATCH] D146637: [InstCombine] Try to recognize bswap pattern when calling fshl

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:1779
              "All funnel shifts by simple constants should go left");
 
       // fshl(X, 0, C) --> shl X, C
----------------
Why not use test matchBSwapOrBitReverse here?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D146637/new/

https://reviews.llvm.org/D146637