[PATCH] D80516: [ConstantFolding] Constant folding for integer vector reduce intrinsics

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: spatel, fhahn, Ayal, nikic, efriedma.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

This add constant folding for all the integer vector reduce intrinsics, providing that the argument is a constant vector. zeroinitializer always produces 0 for all intrinsics, and other values can be handled with APInt operators.


https://reviews.llvm.org/D80516

Files:
  llvm/lib/Analysis/ConstantFolding.cpp
  llvm/test/Analysis/ConstantFolding/vecreduce.ll
  llvm/test/Transforms/LoopVectorize/reduction-inloop.ll

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