[all-commits] [llvm/llvm-project] 14b2ec: [ARM] Enable UpperBound unrolling for all loops

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 14b2ec934ed88642b11319704ea9b7465c4234ad
      https://github.com/llvm/llvm-project/commit/14b2ec934ed88642b11319704ea9b7465c4234ad
  Author: David Green <david.green at arm.com>
  Date:   2021-03-24 (Wed, 24 Mar 2021)

  Changed paths:
    M llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
    M llvm/test/Transforms/LoopUnroll/ARM/upperbound.ll

  Log Message:
  -----------
  [ARM] Enable UpperBound unrolling for all loops

This UpperBound unrolling was already enabled so long as a series of
conditions in ARMTTIImpl::getUnrollingPreferences pass. This just always
enables it as it can help fully unroll loops that would not otherwise
pass those tests.

Differential Revision: https://reviews.llvm.org/D99174