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gimple-fold.c (gimple_fold_obj_type_ref_known_binfo): Check that function is still available to fold into. 

* gimple-fold.c (gimple_fold_obj_type_ref_known_binfo): Check that
	function is still available to fold into.

From-SVN: r161866
This commit is contained in:
Jan Hubicka 2010-07-06 13:44:34 +02:00 committed by Jan Hubicka
parent ebeb2c24db
commit 6e4da08400
2 changed files with 15 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2010-07-05 Jan Hubicka <jh@suse.cz>
* gimple-fold.c (gimple_fold_obj_type_ref_known_binfo): Check that
function is still available to fold into.
2010-07-05 Nathan Froyd <froydnj@codesourcery.com>
* vec.h (FOR_EACH_VEC_ELT_REVERSE): New macro.

11
gcc/gimple-fold.c
View File

@ -1156,7 +1156,7 @@ gimple_fold_builtin (gimple stmt)
fold_convert (TREE_TYPE (gimple_call_lhs (stmt)), val[0]);
/* If the result is not a valid gimple value, or not a cast
of a valid gimple value, then we can not use the result. */
of a valid gimple value, then we cannot use the result. */
if (is_gimple_val (new_val)
|| (is_gimple_cast (new_val)
&& is_gimple_val (TREE_OPERAND (new_val, 0))))
@ -1351,6 +1351,7 @@ gimple_fold_obj_type_ref_known_binfo (HOST_WIDE_INT token, tree known_binfo)
{
HOST_WIDE_INT i;
tree v, fndecl;
struct cgraph_node *node;
v = BINFO_VIRTUALS (known_binfo);
i = 0;
@ -1362,6 +1363,14 @@ gimple_fold_obj_type_ref_known_binfo (HOST_WIDE_INT token, tree known_binfo)
}
fndecl = TREE_VALUE (v);
node = cgraph_get_node (fndecl);
/* When cgraph node is missing and function is not public, we cannot
devirtualize. This can happen in WHOPR when the actual method
ends up in other partition, because we found devirtualization
possibility too late. */
if ((!node || !node->analyzed)
&& (!TREE_PUBLIC (fndecl) || DECL_COMDAT (fndecl)))
return NULL;
return build_fold_addr_expr (fndecl);
}