[PATCH] D40117: [AMDGPU] Update test nullptr.ll to use amdgiz environment

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Changing the size of the other address spaces seems like a problem, but I'm not sure what they are for. If we actually care about them, they need to be added to the datalayout


https://reviews.llvm.org/D40117