[PATCH] D34619: [ARM] Enable partial and runtime unrolling

[Sam Parker via Phabricator via llvm-commits]

samparker created this revision.
Herald added subscribers: kristof.beyls, javed.absar, aemerson.

Enable runtime and partial loop unrolling of simple loops without calls, on Thumb2 M-Class cores. The thresholds are calculated based on the Subtarget's capabilities and the instruction types within the loop. Runtime loops are generally given a lower threshold too.


https://reviews.llvm.org/D34619

Files:
  lib/Target/ARM/ARMTargetTransformInfo.cpp
  lib/Target/ARM/ARMTargetTransformInfo.h

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