[PATCH] D19209: [SCEV] Extract out a `isSCEVExprNeverPoison` helper; NFCI

[Sanjoy Das via llvm-commits]

sanjoy created this revision.
sanjoy added reviewers: bjarke.roune, broune.
sanjoy added a subscriber: llvm-commits.
Herald added subscribers: mzolotukhin, mcrosier, sanjoy.

Also adds a small comment blurb on control flow + no-wrap flags, since
that question came up a few days back on llvm-dev.

http://reviews.llvm.org/D19209

Files:
  include/llvm/Analysis/ScalarEvolution.h
  lib/Analysis/ScalarEvolution.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D19209.54025.patch
Type: text/x-patch
Size: 5884 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160418/de22a78b/attachment.bin>