[PATCH] D32245: Add an IR expansion pass for the experimental reductions

[Amara Emerson via Phabricator via llvm-commits]

aemerson created this revision.
Herald added a subscriber: mgorny.

This is an IR expansion pass intended to allow targets to opt-in to using the experimental reduction intrinsics introduced in https://reviews.llvm.org/D30086.

Its purpose is to see the effects of switching to the intrinsics in the IR, so this pass should be added to a target's pass config late, just before codegen. The expansion should result in the same shufflevector sequence form that targets currently expect reductions to be in.


Repository:
  rL LLVM

https://reviews.llvm.org/D32245

Files:
  include/llvm/CodeGen/ExpandReductions.h
  include/llvm/CodeGen/Passes.h
  include/llvm/InitializePasses.h
  include/llvm/Transforms/Utils/LoopUtils.h
  lib/CodeGen/CMakeLists.txt
  lib/CodeGen/ExpandReductions.cpp
  lib/Transforms/Utils/LoopUtils.cpp
  test/CodeGen/Generic/expand-experimental-reductions.ll
  tools/llc/llc.cpp
  tools/opt/opt.cpp

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