[PATCH] D34723: [AMDGPU] truncate left shift

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec updated this revision to Diff 104329.
rampitec marked 4 inline comments as done.
rampitec edited the summary of this revision.
rampitec added a comment.

Moved implementation into DAGCombiner and replaced existing DAGCombiner's optimization which was only capable of dealing with constant shift amounts.


https://reviews.llvm.org/D34723

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AMDGPU/alignbit-pat.ll
  test/CodeGen/AMDGPU/shift-i64-opts.ll

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