[PR 78140] Reuse same IPA bits and VR info

2017-03-01  Martin Jambor  <mjambor@suse.cz>

	PR lto/78140
	* ipa-prop.h (ipa_bits): Removed field known.
	(ipa_jump_func): Removed field vr_known.  Changed fields bits and m_vr
	to pointers.  Adjusted their comments to warn about their sharing.
	(ipcp_transformation_summary): Change bits to a vector of pointers.
	(ipa_check_create_edge_args): Moved to ipa-prop.c, declare.
	(ipa_get_ipa_bits_for_value): Declare.
	* tree-vrp.h (value_range): Mark as GTY((for_user)).
	* ipa-prop.c (ipa_bit_ggc_hash_traits): New.
	(ipa_bits_hash_table): Likewise.
	(ipa_vr_ggc_hash_traits): Likewise.
	(ipa_vr_hash_table): Likewise.
	(ipa_print_node_jump_functions_for_edge): Adjust for bits and m_vr
	being pointers and vr_known being removed.
	(ipa_set_jf_unknown): Likewise.
	(ipa_get_ipa_bits_for_value): New function.
	(ipa_set_jfunc_bits): Likewise.
	(ipa_get_value_range): New overloaded functions.
	(ipa_set_jfunc_vr): Likewise.
	(ipa_compute_jump_functions_for_edge): Use the above functions to
	construct bits and vr parts of jump functions.
	(ipa_check_create_edge_args): Move here from ipa-prop.h, also allocate
	ipa_bits_hash_table and ipa_vr_hash_table if they do not already
	exist.
	(ipcp_grow_transformations_if_necessary): Also allocate
	ipa_bits_hash_table and ipa_vr_hash_table if they do not already
	exist.
	(ipa_node_params_t::duplicate): Do not copy bits, just pointers to
	them.  Fix too long lines.
	(ipa_write_jump_function): Adjust for bits and m_vr being pointers and
	vr_known being removed.
	(ipa_read_jump_function): Use new setter functions to construct bits
	and vr parts of jump functions or set them to NULL.
	(write_ipcp_transformation_info): Adjust for bits being pointers.
	(read_ipcp_transformation_info): Likewise.
	(ipcp_update_bits): Likewise.  Fix excessively long lines a trailing
	space.
	Include gt-ipa-prop.h.
	* ipa-cp.c (propagate_bits_across_jump_function): Adjust for bits
	being pointers.
	(ipcp_store_bits_results): Likewise.
	(propagate_vr_across_jump_function): Adjust for m_vr being a pointer.
	Do not write to existing jump functions but use a temporary instead.

From-SVN: r245805

1 files changed, 1 insertions, 1 deletions

diff --git a/gcc/tree-vrp.h b/gcc/tree-vrp.h
index 4fed978..ef2c68a 100644
--- a/gcc/tree-vrp.h
+++ b/gcc/tree-vrp.h
@@ -24,7 +24,7 @@ enum value_range_type { VR_UNDEFINED, VR_RANGE,
 
 /* Range of values that can be associated with an SSA_NAME after VRP
    has executed.  */
-struct GTY(()) value_range
+struct GTY((for_user)) value_range
 {
   /* Lattice value represented by this range.  */
   enum value_range_type type;