[PATCH] D64174: [DAGCombine] Do several rounds of combine for addcarry nodes.

[Amaury SECHET via Phabricator via llvm-commits]

deadalnix updated this revision to Diff 214577.
deadalnix added a comment.

Rebase and ping


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64174/new/

https://reviews.llvm.org/D64174

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/addcarry.ll
  test/CodeGen/X86/subcarry.ll

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