[PATCH] D78493: [ARM] Don't shrink STM if it would cause an unknown base register store

[John Brawn via Phabricator via llvm-commits]

john.brawn updated this revision to Diff 259051.
john.brawn retitled this revision from "[ARM] Don't shrink STM.W to unpredictable STM.N with writeback" to "[ARM] Don't shrink STM if it would cause an unknown base register store".
john.brawn edited the summary of this revision.
john.brawn added a comment.

Adjust comments. Also, after double-checking the 8-A and 8-M ARMARMs it's OK if the base register being stored is the lowest one so adjusted to allow that.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D78493/new/

https://reviews.llvm.org/D78493

Files:
  llvm/lib/Target/ARM/Thumb2SizeReduction.cpp
  llvm/test/CodeGen/Thumb/stm-deprecated.ll

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