[all-commits] [llvm/llvm-project] fa284e: [VPlan] Clean up tryToCreate(Widen)Recipe. (NFC)

[Florian Hahn via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: fa284e136e1b67e233f445fcf643eeaa10d6835c
      https://github.com/llvm/llvm-project/commit/fa284e136e1b67e233f445fcf643eeaa10d6835c
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2020-04-20 (Mon, 20 Apr 2020)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h

  Log Message:
  -----------
  [VPlan] Clean up tryToCreate(Widen)Recipe. (NFC)

This patch includes some clean-ups to tryToCreateRecipe, suggested in
D77973.

It includes:
  * Renaming tryToCreateRecipe to tryToCreateWidenRecipe.
  * Move VPBB insertion logic to caller of tryToCreateWidenRecipe.
  * Hoists instruction checks to tryToCreateWidenRecipe, making it
    clearer which instructions are handled by which recipe, simplifying
    the checks by using early exits.
  * Split up handling of induction PHIs and truncates using inductions.

Reviewers: gilr, rengolin, Ayal, hsaito

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D78287