[Bug tree-optimization/110519] Optimize loop that only assigns to a local variable

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110519

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
It is already done when compiling with c++ frontend ...

For C, it can only done for for loops. Which makes it hard to do with the way
gcc handles loops at this point.