https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81892
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
tail-merging is supposed to handle this I think but it gets defeated by
the removing the dead free(0) call.
We do preserve conditional free as conditional free (as it's faster).
So I think GCC works as designed on the testcase, transforming it to
if (p)
free (p);
at least at -Os we should change the above to free (p) I guess where we
have the duplicate bug for.
*** This bug has been marked as a duplicate of bug 80519 ***
