[PATCH] D17201: [SCEV] Introduce a guarded backedge taken count and use it in LAA and LV

[silviu.baranga@arm.com via llvm-commits]

sbaranga updated this revision to Diff 51564.
sbaranga added a comment.

Replaced the <SCEV*, BasicBlock*, SCEVUnionPredicate> tuple with a new "EdgeInfo" struct.
We now consistently use AllowPredicates eveywhere (defaults to false).

I've left ExitNotTakenInfo as is for now, until we decide how (and if) we should change it.


http://reviews.llvm.org/D17201

Files:
  include/llvm/Analysis/ScalarEvolution.h
  lib/Analysis/LoopAccessAnalysis.cpp
  lib/Analysis/ScalarEvolution.cpp
  lib/Analysis/ScalarEvolutionExpander.cpp
  lib/Transforms/Vectorize/LoopVectorize.cpp
  test/Analysis/ScalarEvolution/predicated-trip-count.ll
  test/Transforms/LoopVectorize/AArch64/backedge-overflow.ll
  test/Transforms/LoopVectorize/X86/vectorization-remarks-missed.ll

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