[PATCH] D51630: [DAGCombiner] try to convert pow(x, 0.25) to sqrt(sqrt(x))

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 164049.
spatel added a comment.

Patch updated:
Added ARM (Thumb) tests. No changes otherwise.


https://reviews.llvm.org/D51630

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AArch64/pow.ll
  test/CodeGen/ARM/pow.ll
  test/CodeGen/X86/pow.ll

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