[PATCH] D30653: [LV] Refactor Cost Model's selectVectorizationFactor(), driven by a LoopVectorizationPlanner

[Ayal Zaks via Phabricator via llvm-commits]

Ayal created this revision.
Herald added a subscriber: mzolotukhin.

Refactoring Cost Model's selectVectorizationFactor() so that it handles only the selection of the best VF from a pre-computed range of candidate VF's, extracting early-exit criteria and the computation of a MaxVF upper-bound to other methods, all driven by a LoopVectorizationPlanner.

Follows https://reviews.llvm.org/D28975 and its tentative breakdown starting with the 1st item "refactor Cost-Model to provide MaxVF and early-exit methods.". The refactoring and Planner proposed in this patch are independent of VPlan though.

No change in output intended.

Join work with Gil.


https://reviews.llvm.org/D30653

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D30653.90687.patch
Type: text/x-patch
Size: 12198 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20170306/178a1104/attachment.bin>