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re PR lto/46525 (Failed to bootstrap-lto)

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2010-11-18  Richard Guenther  <rguenther@suse.de>

	PR lto/46525
	* gimple.c (gimple_register_type): Update TYPE_MAIN_VARIANT of
	type leaders.
	(gimple_register_canonical_type): Also cache the canoncial type
	for non type leaders.

From-SVN: r166902
This commit is contained in:
Richard Guenther 2010-11-18 13:10:40 +00:00 committed by Richard Biener
parent e36b937416
commit 1d85701e5c
2 changed files with 30 additions and 1 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2010-11-18 Richard Guenther <rguenther@suse.de>
PR lto/46525
* gimple.c (gimple_register_type): Update TYPE_MAIN_VARIANT of
type leaders.
(gimple_register_canonical_type): Also cache the canoncial type
for non type leaders.
2010-11-18 Richard Guenther <rguenther@suse.de>
* lto-wrapper.c (run_gcc): Fix -flto=N parsing.

23
gcc/gimple.c
View File

@ -4283,6 +4283,7 @@ gimple_register_type (tree t)
{
void **slot;
gimple_type_leader_entry *leader;
tree mv_leader = NULL_TREE;
gcc_assert (TYPE_P (t));
@ -4298,7 +4299,7 @@ gimple_register_type (tree t)
pick up the non-typedef variants as canonical, otherwise we'll end
up taking typedef ids for structure tags during comparison. */
if (TYPE_MAIN_VARIANT (t) != t)
gimple_register_type (TYPE_MAIN_VARIANT (t));
mv_leader = gimple_register_type (TYPE_MAIN_VARIANT (t));
if (gimple_types == NULL)
gimple_types = htab_create_ggc (16381, gimple_type_hash, gimple_type_eq, 0);
@ -4365,6 +4366,22 @@ gimple_register_type (tree t)
{
leader->type = t;
leader->leader = t;
/* We're the type leader. Make our TYPE_MAIN_VARIANT valid. */
if (TYPE_MAIN_VARIANT (t) != t
&& TYPE_MAIN_VARIANT (t) != mv_leader)
{
/* Remove us from our main variant list as we are not the variant
leader and the variant leader will change. */
tree tem = TYPE_MAIN_VARIANT (t);
while (tem && TYPE_NEXT_VARIANT (tem) != t)
tem = TYPE_NEXT_VARIANT (tem);
if (tem)
TYPE_NEXT_VARIANT (tem) = TYPE_NEXT_VARIANT (t);
TYPE_NEXT_VARIANT (t) = NULL_TREE;
/* Adjust our main variant. Linking us into its variant list
will happen at fixup time. */
TYPE_MAIN_VARIANT (t) = mv_leader;
}
*slot = (void *) t;
}
@ -4392,6 +4409,7 @@ tree
gimple_register_canonical_type (tree t)
{
void **slot;
tree orig_t = t;
gcc_assert (TYPE_P (t));
@ -4427,6 +4445,9 @@ gimple_register_canonical_type (tree t)
*slot = (void *) t;
}
/* Also cache the canonical type in the non-leaders. */
TYPE_CANONICAL (orig_t) = t;
return t;
}