[PATCH] D67339: [ConstantRange] add helper function addWithNoWrap

[ChenZheng via Phabricator via llvm-commits]

shchenz created this revision.
shchenz added reviewers: nikic, reames, sanjoy, hfinkel.
Herald added subscribers: llvm-commits, wuzish, hiraditya.
Herald added a project: LLVM.

Currently there is only an add function for constant range without considering wrap flag. It may produce a conservative range.
Add a helper function to consider wrap flag, so we can get a more accurate range.

This is splitted from https://reviews.llvm.org/D64869.


https://reviews.llvm.org/D67339

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

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