https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83311
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic,
| |missed-optimization
CC| |msebor at gcc dot gnu.org
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Rather than focusing on optimizing such code it would be more useful to
diagnose it. The alloca case should be diagnosed with -Wreturn-local-addr as
suggested in bug 81811. The malloc/calloc (and perhaps even attribute
alloc_size) with some new warning designed to detect memory leaks.
Without a warning, the optimization will mask hard to reproduce bugs, some of
which will only be reproducible with optimization disabled, or with other
compilers, or with valgrind or similar tools.
