[Bug tree-optimization/80519] if(p)free(p) with -Os

[egall at gwmail dot gwu.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80519

Eric Gallager <egall at gwmail dot gwu.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |egall at gwmail dot gwu.edu

--- Comment #2 from Eric Gallager <egall at gwmail dot gwu.edu> ---
It'd be nice if the compiler could emit a warning when removing such a check,
that way gnulib wouldn't need to keep around the "useless-if-before-free"
script any more if the compiler could just do it instead