[all-commits] [llvm/llvm-project] 3c39db: Revert "[LoopVectorizer] Inloop vector reductions"

[Jordan Rupprecht via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 3c39db0c4452218c967a8ac3ad48144fbf1159ff
      https://github.com/llvm/llvm-project/commit/3c39db0c4452218c967a8ac3ad48144fbf1159ff
  Author: Jordan Rupprecht <rupprecht at google.com>
  Date:   2020-08-05 (Wed, 05 Aug 2020)

  Changed paths:
    M llvm/include/llvm/Analysis/IVDescriptors.h
    M llvm/lib/Analysis/IVDescriptors.cpp
    M llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.cpp
    M llvm/lib/Transforms/Vectorize/VPlan.h
    M llvm/test/Transforms/LoopVectorize/reduction-inloop-uf4.ll
    M llvm/test/Transforms/LoopVectorize/reduction-inloop.ll

  Log Message:
  -----------
  Revert "[LoopVectorizer] Inloop vector reductions"

This reverts commit e9761688e41cb979a1fa6a79eb18145a75104933. It breaks the build:

```
~/src/llvm-project/llvm/lib/Analysis/IVDescriptors.cpp:868:10: error: no viable conversion from returned value of type 'SmallVector<[...], 8>' to function return type 'SmallVector<[...], 4>'
  return ReductionOperations;
```