[PATCH] D58874: [DAGCombiner] fold (add (add (xor a, -1), b), 1) -> (sub b, a)

[Amaury SECHET via Phabricator via llvm-commits]

deadalnix updated this revision to Diff 189846.
deadalnix added a comment.

Rebase and regenerate tests introduced in rL355400 <https://reviews.llvm.org/rL355400>


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58874/new/

https://reviews.llvm.org/D58874

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/add.ll
  test/CodeGen/X86/combine-add.ll

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