[PATCH] D128820: [ConstExpr] Don't create div/rem expressions

[Nikita Popov via Phabricator via llvm-commits]

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This removes creation of udiv/sdiv/urem/srem constant expressions in a few places, in preparation for their removal. This only covers the cases where we're explicitly creating these expression types -- we also have quite a few uses of `ConstantExpr::get()` that could potentially be creating them and will need additional review.


https://reviews.llvm.org/D128820

Files:
  llvm/include/llvm/Analysis/TargetFolder.h
  llvm/include/llvm/IR/ConstantFolder.h
  llvm/lib/Analysis/ScalarEvolution.cpp
  llvm/lib/IR/ConstantFold.cpp
  llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp

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