[PATCH] D48706: [X86] Suppress load folding into and/or/xor if it will prevent matching btr/bts/btc.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, spatel, lebedev.ri.

This is a follow up to r335753. At the time I forgot about isProfitableToFold which makes this pretty easy.


Repository:
  rL LLVM

https://reviews.llvm.org/D48706

Files:
  lib/Target/X86/X86ISelDAGToDAG.cpp
  test/CodeGen/X86/btc_bts_btr.ll

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