------- Comment #8 from rguenth at gcc dot gnu dot org 2010-09-18 09:53 -------
We run into
/* With return slot optimization we can end up with
non-gimple (foo *)&this->m, fix that here. */
if (TREE_CODE (new_arg) != SSA_NAME
&& TREE_CODE (new_arg) != FUNCTION_DECL
&& !is_gimple_val (new_arg))
{
gimple_seq stmts = NULL;
new_arg = force_gimple_operand (new_arg, &stmts, true, NULL);
gsi_insert_seq_on_edge_immediate (new_edge, stmts);
but inserting on an edge that needs splitting, which wrecks new_edge.
Index: tree-inline.c
===================================================================
--- tree-inline.c (revision 164388)
+++ tree-inline.c (working copy)
@@ -2021,8 +2021,11 @@ copy_phis_for_bb (basic_block bb, copy_b
&& !is_gimple_val (new_arg))
{
gimple_seq stmts = NULL;
+ basic_block tem;
new_arg = force_gimple_operand (new_arg, &stmts, true, NULL);
- gsi_insert_seq_on_edge_immediate (new_edge, stmts);
+ tem = gsi_insert_seq_on_edge_immediate (new_edge, stmts);
+ if (tem)
+ new_edge = find_edge (tem, new_bb);
}
add_phi_arg (new_phi, new_arg, new_edge,
gimple_phi_arg_location_from_edge (phi, old_edge));
fixes that.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45709
