[PATCH] D60585: [CVP] Set NSW/NUW flags when simplifying with.overflow

[Nikita Popov via Phabricator via llvm-commits]

nikic created this revision.
nikic added reviewers: sanjoy, lebedev.ri, spatel.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

When CVP determines that a with.overflow intrinsic cannot overflow, it currently inserts a simple add/sub. As we already determined that there can be no overflow, we should add the appropriate NUW/NSW flag.


Repository:
  rL LLVM

https://reviews.llvm.org/D60585

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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D60585.194757.patch
Type: text/x-patch
Size: 8176 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20190411/5791d82d/attachment.bin>