http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50133
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-08-21
17:43:08 UTC ---
Insert before gsi_end_p should be fine, you just can't copy locus from it in
that case. So you could as well do something like:
si = *gsi;
if (gsi_end_p (si))
{
gsi_prev (&si);
gsi_prev_nondebug (&si);
}
else if (is_gimple_debug (gsi_stmt (si)))
{
gsi_next_nondebug (&si);
gcc_assert (!gsi_end_p (si));
}
where the first gsi_prev would move from the end to the newly inserted stmt and
gsi_prev_nondebug to the previous stmt (skipping any debug stmts).
This wouldn't work when inserting into a completely empty bb, but does the
vectorizer ever do something like that?
