[all-commits] [llvm/llvm-project] 4b33b2: Reapply "[LV] Vectorize (some) early and multiple ...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4b33b2387787aef5020450cdcc8dde231eb0a5fc
      https://github.com/llvm/llvm-project/commit/4b33b2387787aef5020450cdcc8dde231eb0a5fc
  Author: Philip Reames <listmail at philipreames.com>
  Date:   2020-12-28 (Mon, 28 Dec 2020)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/control-flow.ll
    M llvm/test/Transforms/LoopVectorize/loop-form.ll
    M llvm/test/Transforms/LoopVectorize/loop-legality-checks.ll

  Log Message:
  -----------
  Reapply "[LV] Vectorize (some) early and multiple exit loops"" w/fix for builder

This reverts commit 4ffcd4fe9ac2ee948948f732baa16663eb63f1c7 thus restoring e4df6a40dad.

The only change from the original patch is to add "llvm::" before the call to empty(iterator_range).  This is a speculative fix for the ambiguity reported on some builders.