cherry-pick test modififcation from conda-forge
cherry-pick test modififcation from conda-forge

In order to fix the test failure reported at:

https://github.com/numba/llvmlite/pull/715#issuecomment-818794571

We adapt the changes to the `numba-3016.ll` introduced on conda-forge
with the following commit.

https://github.com/conda-forge/llvmdev-feedstock/commit/2792fd7eebcbe01816d588939f738c3237f0c425

numba/llvmlite,numba/llvmlite,numba/llvmlite,numba/llvmlite