[PATCH] D44102: Teach CorrelatedValuePropagation to reduce the width of udiv/urem instructions.

[Justin Lebar via Phabricator via llvm-commits]

jlebar created this revision.
jlebar added reviewers: spatel, sanjoy.
Herald added a subscriber: hiraditya.

If the operands of a udiv/urem can be proved to fit within a smaller
power-of-two-sized type, reduce the width of the udiv/urem.


https://reviews.llvm.org/D44102

Files:
  llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
  llvm/test/Transforms/CorrelatedValuePropagation/udiv.ll
  llvm/test/Transforms/CorrelatedValuePropagation/urem.ll

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