* cgraphbuild.c (cgraph_rebuild_references): Rebuild only non-speculative

	refs.
	* cgraph.c (cgraph_update_edge_in_call_site_hash): New function.
	(cgraph_add_edge_to_call_site_hash): Deal with speculative calls.
	(cgraph_set_call_stmt): Likewise.
	(cgraph_create_edge_1): Fix release checking compilatoin;
	clear lto_stmt_uid.
	(cgraph_free_edge): Free indirect info.
	(cgraph_turn_edge_to_speculative): New function.
	(cgraph_speculative_call_info): New function.
	(cgraph_make_edge_direct): Return direct edge; handle speculation.
	(cgraph_redirect_edge_call_stmt_to_callee): Expand speculative
	edges.
	(dump_cgraph_node): Dump speculation.
	(verify_edge_count_and_frequency): Accept speculative edges.
	(verify_edge_corresponds_to_fndecl): Handle partitioned cgraph.
	(verify_cgraph_node): Handle speculation.
	* cgraph.h (cgraph_edge): Add SPECULATIVE flag.
	(cgraph_set_call_stmt): Update prototype.
	(cgraph_make_edge_direct): Update prototype.
	(cgraph_speculative_call_info): Declare.
	* ipa-cp.c (ipcp_discover_new_direct_edges): Be ready for edge
	to change; update call of ipa_find_references.
	* ipa-ref.c (ipa_record_reference): Fix return value; clear
	lto_stmt_uid and speculative flags.
	(ipa_dump_references): Dump speculation.
	(ipa_clone_references): Clone speculative flag.
	(ipa_clone_referring): Likewise.
	(ipa_clone_ref): New function.
	(ipa_find_reference): Look into lto_stmt_uids
	(ipa_clear_stmts_in_references): Do not clear speculative calls.
	* ipa-ref.h (ipa_ref): Add lto_stmt_uid and speculative flags.
	(ipa_find_reference): Update declaration.
	(ipa_clone_ref): Declare.
	* lto-cgraph.c (lto_output_edge): Make lto_stmt_uids start from 0;
	stream speculative flag.
	(lto_output_ref): Stream statements uids and speculation.
	(input_ref): Likewise.
	(input_edge): Stream speuclation.
	* cgraphclones.c (cgraph_clone_edge): Clone speculation.
	(cgraph_set_call_stmt_including_clones): Handle speculation.
	* ipa-inline.c (heap_edge_removal_hook): New function.
	(inline_small_functions): Register it.
	* lto-streamer-in.c (fixup_call_stmt_edges_1): Bounds checking;
	also initialize refs.
	* ipa-prop.c (ipa_make_edge_direct_to_target): Be ready for
	edge to change.
	(try_make_edge_direct_simple_call): Likewise.
	(try_make_edge_direct_simple_call): Likewise.
	(update_indirect_edges_after_inlining): Likewise.
	(remove_described_reference): Look proper lto_stmt_uid.
	(propagate_controlled_uses): Likewise.
	(propagate_controlled_uses): Liekwise.
	* tree-inline.c (copy_bb): Copy speculative edges.
	(redirect_all_calls): New function.
	(copy_cfg_body): Do redirection after loop info
	is updated.
	(delete_unreachable_blocks_update_callgraph): Updadte
	speculation.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201632 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 1 deletions

diff --git a/gcc/ipa-ref.h b/gcc/ipa-ref.h
index 0b37a14ee6e..e0553bb6609 100644
--- a/gcc/ipa-ref.h
+++ b/gcc/ipa-ref.h
@@ -40,8 +40,10 @@ struct GTY(()) ipa_ref
   symtab_node referring;
   symtab_node referred;
   gimple stmt;
+  unsigned int lto_stmt_uid;
   unsigned int referred_index;
   ENUM_BITFIELD (ipa_ref_use) use:2;
+  unsigned int speculative:1;
 };
 
 typedef struct ipa_ref ipa_ref_t;
@@ -71,8 +73,9 @@ void ipa_dump_references (FILE *, struct ipa_ref_list *);
 void ipa_dump_referring (FILE *, struct ipa_ref_list *);
 void ipa_clone_references (symtab_node, struct ipa_ref_list *);
 void ipa_clone_referring (symtab_node, struct ipa_ref_list *);
+struct ipa_ref * ipa_clone_ref (struct ipa_ref *, symtab_node, gimple);
 bool ipa_ref_cannot_lead_to_return (struct ipa_ref *);
 bool ipa_ref_has_aliases_p (struct ipa_ref_list *);
-struct ipa_ref * ipa_find_reference (symtab_node, symtab_node, gimple);
+struct ipa_ref * ipa_find_reference (symtab_node, symtab_node, gimple, unsigned int);
 void ipa_remove_stmt_references (symtab_node, gimple);
 void ipa_clear_stmts_in_references (symtab_node);