[PATCH] D54546: [ARM] Don't expand sdiv when optimising for minsize

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer updated this revision to Diff 174747.
SjoerdMeijer retitled this revision from "[DAGCombiner] Don't expand sdiv when optimising for minsize" to "[ARM] Don't expand sdiv when optimising for minsize".
SjoerdMeijer added a comment.

While looking what X86 as doing (and why it was doing the right thing), I noticed that I should just implement `TargetLowering::BuildSDIVPow2`. So that's what I am doing now, and thus it's no longer a DAGCombine change but just an ARM one.
Different tests and targets have been added, and a check for larger constants.


https://reviews.llvm.org/D54546

Files:
  lib/Target/ARM/ARMISelLowering.cpp
  lib/Target/ARM/ARMISelLowering.h
  test/CodeGen/ARM/sdiv-opt-size.ll

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