[Bug tree-optimization/115447] GCC fails to tail call unless variable wrapped in a block

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115447

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note if you don't do the assignment (to extend the lifetime of the temp), GCC
does tail calls bar unlike clang/LLVM.