r230835 - in /trunk/gcc: ChangeLog alias.c lto-...

[hubicka@gcc.gnu.org]

Author: hubicka
Date: Tue Nov 24 19:35:38 2015
New Revision: 230835

URL: https://gcc.gnu.org/viewcvs?rev=230835&root=gcc&view=rev
Log:
	* lto-streamer-in.c (lto_read_body_or_constructor): Set TYPE_CANONICAL
	only for types where LTO sets them.
	* tree.c (build_array_type_1): Do ont set TYPE_CANONICAL for LTO.
	(make_vector_type): Likewise.
	(gimple_canonical_types_compatible_p): Use canonical_type_used_p.
	* tree.h (canonical_type_used_p): New inline.
	* alias.c (get_alias_set): Handle structural equality for all
	types that pass canonical_type_used_p.
	(record_component_aliases): Look through all types with
	record_component_aliases for possible pointers; sanity check that
	the alias sets match.

	* lto.c (iterative_hash_canonical_type): Recruse for all types
	which pass !canonical_type_used_p.
	(gimple_register_canonical_type_1): Sanity check we do not compute
	canonical type of anything with !canonical_type_used_p.
	(gimple_register_canonical_type): Skip all types that are
	!canonical_type_used_p

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/alias.c
    trunk/gcc/lto-streamer-in.c
    trunk/gcc/lto/ChangeLog
    trunk/gcc/lto/lto.c
    trunk/gcc/tree.c
    trunk/gcc/tree.h