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Fix ICE when call is optimized out during clone materialization
- From: Jan Hubicka <hubicka at ucw dot cz>
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 19 Feb 2014 08:36:02 +0100
- Subject: Fix ICE when call is optimized out during clone materialization
- Authentication-results: sourceware.org; auth=none
Hi,
this patch fixes ICE while building Qt 5 with LTO. When call is optimized out
and removed by cgraph_update_edges_for_call_stmt_node, we must also eliminate
inline clones, or the verifier will complain.
Bootstrapped/regtested x86_64-linux, comitted.
2014-02-18 Jan Hubicka <hubicka@ucw.cz>
* cgraph.c (cgraph_update_edges_for_call_stmt_node): Also remove
inline clones when edge disappears.
Index: cgraph.c
===================================================================
--- cgraph.c (revision 207870)
+++ cgraph.c (working copy)
@@ -1529,7 +1529,10 @@ cgraph_update_edges_for_call_stmt_node (
attached to edge is invalid. */
count = e->count;
frequency = e->frequency;
- cgraph_remove_edge (e);
+ if (e->indirect_unknown_callee || e->inline_failed)
+ cgraph_remove_edge (e);
+ else
+ cgraph_remove_node_and_inline_clones (e->callee, NULL);
}
else if (new_call)
{