[PATCH] D42142: Adding Live-range reordering for Polly

[Alex Susu via Phabricator via llvm-commits]

alexsusu created this revision.
alexsusu added a reviewer: Meinersbur.
Herald added a reviewer: bollu.
Herald added a subscriber: llvm-commits.

  Added Live-Range Reordering (LRR) for Polly.
  To build this feature one needs to give (to build also PPCG with Polly):
      cmake -DPOLLY_ENABLE_GPGPU_CODEGEN=On ...
  
  I got inspired heavily from llvm/tools/polly/lib/CodeGen/PPCGCodeGeneration.cpp - I duplicated the code existing there.
  Basically what I did was to:
    - use from PPCGCodeGeneration.cpp method PPCGCodeGeneration::createPPCGScop() to initialize the maps containing the dependence analysis data;
    - implement in IslScheduleOptimizer::runOnScop(Scop &S) a good part of the construct_cpu_schedule_constraints() function from PPCG's cpu.c to compute the LRR constraints.


Repository:
  rPLO Polly

https://reviews.llvm.org/D42142

Files:
  lib/Transform/ScheduleOptimizer.cpp

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