[PATCH] D39669: DAG: Preserve nuw when reassociating adds

[Davide Italiano via Phabricator via llvm-commits]

davide added a comment.

In https://reviews.llvm.org/D39669#916774, @arsenm wrote:

> In https://reviews.llvm.org/D39669#916383, @davide wrote:
>
> > testcase?
>
>
> Test is hard for this short of testing debug info, which is fragile. This prevents some regressions in a future AMDGPU commit


CC:ing Adrian for thoughts.


https://reviews.llvm.org/D39669