df.h (struct df_ref): Replace 'insn' field with 'insn_info' field.

	* df.h (struct df_ref): Replace 'insn' field with 'insn_info' field.
	(DF_REF_INSN_INFO): New.
	(DF_REF_INSN, DF_REF_INSN_UID): Rewrite macros using DF_REF_INSN_INFO.
	(DF_REF_IS_ARTIFICIAL): Artificial refs are now identified as refs
	with a NULL DF_REF_INSN_INFO.
	(DF_INSN_INFO_GET, DF_INSN_INFO_SET): Renamed from DF_INSN_GET and
	DF_INSN_SET.
	(DF_INSN_INFO_LUID, DF_INSN_INFO_DEFS, DF_INSN_INFO_USES,
	DF_INSN_INFO_EQ_USES): New.
	(DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES, DF_INSN_EQ_USES,
	DF_INSN_UID_LUID, DF_INSN_UID_DEFS, DF_INSN_UID_USES,
	DF_INSN_UID_EQ_USES): Rewrite using DF_INSN_INFO_* macros.
	* df-core.c: Update comment for above changes.
	(df_insn_debug_regno): Use DF_INSN_INFO_GET instead of INSN_UID and
	DF_INSN_UID_* macros.
	(df_ref_debug): Check for NULL DF_REF_INSN_INFO.
	* df-scan.c (df_ref_record): Take a df_insn_info instead of an
	insn rtx.  Update all callers.
	(df_def_record_1, df_defs_record, df_uses_record, df_get_call_refs,
	df_ref_create_structure, df_insn_refs_collect): Likewise.
	(df_ref_equal_p): Compare DF_REF_INSN_INFO pointers for the refs.
	* df-problems.c (df_chain_dump): Test for non-NULL DF_REF_INSN_INFO.
	(df_live_bb_local_compute): Retrieve DF_INSN_INFO, use DF_INSN_INFO_*
	macros to access the insn refs.
	(df_chain_top_dump, df_chain_bottom_dump, df_byte_lr_alloc): Likewise.
	* fwprop.c (use_killed_between): Use DF_REF_INSN accessor macro.
	(all_uses_available): Retrieve DF_INSN_INFO for def_insn, and use it
	for accessing the refs.
	(try_fwprop_subst): Likewise.
	* ddg.c (add_cross_iteration_register_deps): Use DF_REF_INSN macro.
	* web.c (union_defs): Retrieve DF_INSN_INFO for def_insn, and use it
	for accessing the refs.
	* loop-invariant.c (invariant_for_use): Use DF_REF_BB macro.
	(check_dependencies): Use DF_INSN_INFO_GET, use DF_INSN_INFO_* macros
	to look at the insn refs.
	(record_uses): Likewise.
	* dce.c (deletable_insn_p): Don't tolerate artificial DEFs in this
	function anymore.
	(mark_artificial_uses): Don't mark_insn for artificial refs.
	(mark_reg_rependencies): Likewise.

	* doc/rtl.texi: Remove documentation of ADDRESSOF.

From-SVN: r136885

1 files changed, 9 insertions, 7 deletions

diff --git a/gcc/web.c b/gcc/web.c
index 84987df..d04e8a2 100644
--- a/gcc/web.c
+++ b/gcc/web.c
@@ -105,22 +105,24 @@ union_defs (struct df_ref *use, struct web_entry *def_entry,
  	    struct web_entry *use_entry,
  	    bool (*fun) (struct web_entry *, struct web_entry *))
 {
-  rtx insn = DF_REF_INSN (use);
+  struct df_insn_info *insn_info = DF_REF_INSN_INFO (use);
   struct df_link *link = DF_REF_CHAIN (use);
   struct df_ref **use_link;
   struct df_ref **eq_use_link;
   struct df_ref **def_link;
   rtx set;
 
-  if (insn)
+  if (insn_info)
     {
-      use_link = DF_INSN_USES (insn);
-      eq_use_link = DF_INSN_EQ_USES (insn);
-      def_link = DF_INSN_DEFS (insn);
+      rtx insn = insn_info->insn;
+      use_link = DF_INSN_INFO_USES (insn_info);
+      eq_use_link = DF_INSN_INFO_EQ_USES (insn_info);
+      def_link = DF_INSN_INFO_DEFS (insn_info);
       set = single_set (insn);
     }
   else
     {
+      /* An artificial use.  It links up with nothing.  */
       use_link = NULL;
       eq_use_link = NULL;
       def_link = NULL;
@@ -180,8 +182,8 @@ union_defs (struct df_ref *use, struct web_entry *def_entry,
     {
       struct df_ref **link;
 
-      if (DF_REF_INSN (use))
-	link = DF_INSN_DEFS (DF_REF_INSN (use));
+      if (insn_info)
+	link = DF_INSN_INFO_DEFS (insn_info);
       else
 	link = NULL;