[Bug tree-optimization/81635] [8 Regression] nvptx SLP test cases regressions

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81635

--- Comment #12 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
In the end I agree using range info in split_constant_offset is the right way
to go -- sorry for the runaround.  Testing a patch for that.

I'll see if that triggers the same predcom problem I saw with the original
patch.