[PATCH] D71011: [ConstantRange] Add `shlWithNoWrap()` method

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 232121.
lebedev.ri added a comment.

Simplify `nsw` all-wrap detection - we only need to check the `.back()` value
returned by `getClosestToZero()` - either there was a single value to begin with
and we are good either way, or there were two values and we are looking at the negative one.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71011/new/

https://reviews.llvm.org/D71011

Files:
  llvm/include/llvm/IR/ConstantRange.h
  llvm/lib/IR/ConstantRange.cpp
  llvm/unittests/IR/ConstantRangeTest.cpp

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