Hi,
the problem in PR 57084 is that late PRE devirtualization creates a
direct call to a decl fro which we only have an inlined call graph
mode in the given partition. I tried to find a most universal place
where to fix it because this problem is not special to type-based
devirtualization and in theory can be caused by any call to a decl
that is grabbed from a constructor. I think the best place is the
following one-liner, because all such decls should go through
canonicalize_constructor_val.
Bootstrapped and tested on x86_64-linux, fixes the testcase (at -m32)
and I have happened to also LTO build Mozilla Firefox with it. OK for
trunk?
Thanks,
Martin
2013-05-06 Martin Jambor <mjam...@suse.cz>
PR lto/57084
* gimple-fold.c (canonicalize_constructor_val): Call
cgraph_get_create_real_symbol_node instead of cgraph_get_create_node.
Index: src/gcc/gimple-fold.c
===================================================================
--- src.orig/gcc/gimple-fold.c
+++ src/gcc/gimple-fold.c
@@ -178,7 +178,7 @@ canonicalize_constructor_val (tree cval,
/* Make sure we create a cgraph node for functions we'll reference.
They can be non-existent if the reference comes from an entry
of an external vtable for example. */
- cgraph_get_create_node (base);
+ cgraph_get_create_real_symbol_node (base);
}
/* Fixup types in global initializers. */
if (TREE_TYPE (TREE_TYPE (cval)) != TREE_TYPE (TREE_OPERAND (cval, 0)))
