Hi,
tidy_fallthru_edges contains RTL-specific bits:
if (! (s->flags & EDGE_COMPLEX)
&& s->dest == c
&& !find_reg_note (BB_END (b), REG_CROSSING_JUMP, NULL_RTX))
tidy_fallthru_edge (s);
so it is disabled at the GIMPLE level. That's why I don't think that calling
it from tree-inline.c makes much sense.
Tested on i586-suse-linux, OK for mainline?
2011-04-04 Eric Botcazou <ebotca...@adacore.com>
* cfghooks.c (tidy_fallthru_edges): Add ??? comment.
* tree-inline.c (delete_unreachable_blocks_update_callgraph): Remove
call to tidy_fallthru_edges.
--
Eric Botcazou
Index: cfghooks.c
===================================================================
--- cfghooks.c (revision 171818)
+++ cfghooks.c (working copy)
@@ -830,7 +830,9 @@ tidy_fallthru_edge (edge e)
/* Fix up edges that now fall through, or rather should now fall through
but previously required a jump around now deleted blocks. Simplify
the search by only examining blocks numerically adjacent, since this
- is how they were created. */
+ is how they were created.
+
+ ??? This routine is currently RTL specific. */
void
tidy_fallthru_edges (void)
Index: tree-inline.c
===================================================================
--- tree-inline.c (revision 171818)
+++ tree-inline.c (working copy)
@@ -4964,8 +4964,6 @@ delete_unreachable_blocks_update_callgra
}
}
- if (changed)
- tidy_fallthru_edges ();
return changed;
}
