[PATCH] D34374: [AMDGPU] Combine add and adde, sub and sube

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, kzhuravl.

If one of the arguments of adde/sube is zero we can fold another add/sub into it.


Repository:
  rL LLVM

https://reviews.llvm.org/D34374

Files:
  lib/Target/AMDGPU/SIISelLowering.cpp
  lib/Target/AMDGPU/SIISelLowering.h
  test/CodeGen/AMDGPU/combine-cond-add-sub.ll

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