2008-09-04 Vladimir Makarov <vmakarov@redhat.com>

	* ira-conflicts.c (process_regs_for_copy): Check insn to check
	that the cost is already taken into account in ira-costs.c

	* ira-int.h (ira_debug_copy, ira_debug_copies): New.

	* ira-build.c (print_copy, print_copies, ira_debug_copy,
	ira_debug_copies): New.
	(ira_bulid): Call print_copies.
	
	* doc/tm.texi (IRA_COVER_CLASSES): Fix the description.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@140014 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 36 insertions, 0 deletions

diff --git a/gcc/ira-build.c b/gcc/ira-build.c
index 6bd49c0cd1b..b1f496c41df 100644
--- a/gcc/ira-build.c
+++ b/gcc/ira-build.c
@@ -1097,6 +1097,40 @@ ira_add_allocno_copy (ira_allocno_t first, ira_allocno_t second, int freq,
   return cp;
 }
 
+/* Print info about copy CP into file F.  */
+static void
+print_copy (FILE *f, ira_copy_t cp)
+{
+  fprintf (f, "  cp%d:a%d(r%d)<->a%d(r%d)@%d\n", cp->num,
+	   ALLOCNO_NUM (cp->first), ALLOCNO_REGNO (cp->first),
+	   ALLOCNO_NUM (cp->second), ALLOCNO_REGNO (cp->second), cp->freq);
+}
+
+/* Print info about copy CP into stderr.  */
+void
+ira_debug_copy (ira_copy_t cp)
+{
+  print_copy (stderr, cp);
+}
+
+/* Print info about all copies into file F.  */
+static void
+print_copies (FILE *f)
+{
+  ira_copy_t cp;
+  ira_copy_iterator ci;
+
+  FOR_EACH_COPY (cp, ci)
+    print_copy (f, cp);
+}
+
+/* Print info about all copies into stderr.  */
+void
+ira_debug_copies (void)
+{
+  print_copies (stderr);
+}
+
 /* Print info about copies involving allocno A into file F.  */
 static void
 print_allocno_copies (FILE *f, ira_allocno_t a)
@@ -2409,6 +2443,8 @@ ira_build (bool loops_p)
   sort_conflict_id_allocno_map ();
   setup_min_max_conflict_allocno_ids ();
   ira_build_conflicts ();
+  if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL)
+    print_copies (ira_dump_file);
   if (internal_flag_ira_verbose > 0 && ira_dump_file != NULL)
     {
       int n, nr;