[PATCH] D48489: [MemDep] Use PhiValuesAnalysis to improve alias analysis results

[John Brawn via Phabricator via llvm-commits]

john.brawn created this revision.
john.brawn added reviewers: wmi, reames, efriedma, nlopes, davide.
Herald added subscribers: steven_wu, eraman, mehdi_amini.
john.brawn added a dependency: D44564: [BasicAA] Use PhiValuesAnalysis if available when handling phi alias.

This is being done in order to make GVN able to better optimize certain inputs. MemDep doesn't use PhiValues directly, but does need to notifiy it when things get invalidated.


Repository:
  rL LLVM

https://reviews.llvm.org/D48489

Files:
  include/llvm/Analysis/MemoryDependenceAnalysis.h
  lib/Analysis/MemoryDependenceAnalysis.cpp
  test/Other/new-pm-defaults.ll
  test/Other/new-pm-lto-defaults.ll
  test/Other/new-pm-thinlto-defaults.ll
  test/Other/opt-O2-pipeline.ll
  test/Other/opt-O3-pipeline.ll
  test/Other/opt-Os-pipeline.ll
  test/Transforms/GVN/PRE/pre-after-rle.ll

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