[Bug tree-optimization/114779] __builtin_constant_p does not work in inline functions

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114779

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
I tried removing the TREE_SIDE_EFFECTS check at some point and it had quite
some fallout even in the testsuite.  Don't remember the PR I tried this for ...