http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55935
--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-11
14:30:29 UTC ---
Index: gcc/tree-cfgcleanup.c
===================================================================
--- gcc/tree-cfgcleanup.c (revision 195103)
+++ gcc/tree-cfgcleanup.c (working copy)
@@ -412,7 +412,8 @@ remove_forwarder_block (basic_block bb)
{
gimple phi = gsi_stmt (gsi);
source_location l = gimple_phi_arg_location_from_edge (phi,
succ);
- add_phi_arg (phi, gimple_phi_arg_def (phi, succ->dest_idx), s,
l);
+ tree def = gimple_phi_arg_def (phi, succ->dest_idx);
+ add_phi_arg (phi, unshare_expr (def), s, l);
}
}
}
is the only other that triggers in tree-ssa.exp with
Index: gcc/tree-cfg.c
===================================================================
--- gcc/tree-cfg.c (revision 195103)
+++ gcc/tree-cfg.c (working copy)
@@ -4440,8 +4460,8 @@ bool
tree_node_can_be_shared (tree t)
{
if (IS_TYPE_OR_DECL_P (t)
- || is_gimple_min_invariant (t)
|| TREE_CODE (t) == SSA_NAME
+ || CONSTANT_CLASS_P (t)
|| t == error_mark_node
|| TREE_CODE (t) == IDENTIFIER_NODE)
return true;
execute.exp has more issue it seems.
removal of the handled_component_p block from tree_node_can_be_shared
has bootstrapped all languages ok, testing is still in progress.
