[PATCH] D48815: [VPlan] Introduce VPlan-based dominator analysis.

[Diego Caballero via Phabricator via llvm-commits]

dcaballe created this revision.
dcaballe added reviewers: fhahn, rengolin, mkuper, hfinkel, mssimpso.
Herald added subscribers: llvm-commits, rogfer01, rkruppe, tschuett, bollu, kuhar, mgorny.

Context: Patch Series #1 for outer loop vectorization support in LV
using VPlan. (RFC: http://lists.llvm.org/pipermail/llvm-dev/2017-December/119523.html).

The patch introduces dominator analysis for VPBlockBases and extend
VPlan's GraphTraits specialization with the required interfaces. Dominator
analysis will be necessary to perform some H-CFG transformations and
to introduce VPLoopInfo (LoopInfo analysis on top of the VPlan representation).


Repository:
  rL LLVM

https://reviews.llvm.org/D48815

Files:
  lib/Transforms/Vectorize/LoopVectorize.cpp
  lib/Transforms/Vectorize/VPlan.cpp
  lib/Transforms/Vectorize/VPlan.h
  lib/Transforms/Vectorize/VPlanDominatorTree.h
  lib/Transforms/Vectorize/VPlanHCFGBuilder.cpp
  lib/Transforms/Vectorize/VPlanHCFGBuilder.h
  lib/Transforms/Vectorize/VPlanVerifier.cpp
  unittests/Transforms/Vectorize/CMakeLists.txt
  unittests/Transforms/Vectorize/VPlanDominatorTreeTest.cpp
  unittests/Transforms/Vectorize/VPlanHCFGTest.cpp

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