Dump -fdbg-cnt limit reach also to stderr stream.

2019-03-29  Martin Liska  <mliska@suse.cz>

	* dbgcnt.c (print_limit_reach): New function.
	(dbg_cnt): Use it.
2019-03-29  Martin Liska  <mliska@suse.cz>

	* gcc.dg/ipa/ipa-icf-39.c: Prine '***dbgcnt' output.
	* gcc.dg/pr68766.c: Likewise.

From-SVN: r270015

gcc/ChangeLog

 2019-03-29  Martin Liska  <mliska@suse.cz>
 
+	* dbgcnt.c (print_limit_reach): New function.
+	(dbg_cnt): Use it.
+
+2019-03-29  Martin Liska  <mliska@suse.cz>
+
 	* dbgcnt.c (dbg_cnt_process_single_pair): Fix GNU coding style.
 	(dbg_cnt_process_opt): Parse first tokens aas
 	dbg_cnt_process_single_pair is also using strtok.

gcc/dbgcnt.c

@@ -58,21 +58,27 @@ dbg_cnt_is_enabled (enum debug_counter index)
   return v > limit_low[index] && v <= limit_high[index];
 }
 
+static void
+print_limit_reach (const char *counter, int limit, bool upper_p)
+{
+  char buffer[128];
+  sprintf (buffer, "***dbgcnt: %s limit %d reached for %s.***\n",
+	   upper_p ? "upper" : "lower", limit, counter);
+  fputs (buffer, stderr);
+  if (dump_file)
+    fputs (buffer, dump_file);
+}
+
 bool
 dbg_cnt (enum debug_counter index)
 {
   count[index]++;
 
-  if (dump_file)
-    {
-      /* Do not print the info for default lower limit.  */
-      if (count[index] == limit_low[index] && limit_low[index] > 0)
-	fprintf (dump_file, "***dbgcnt: lower limit %d reached for %s.***\n",
-		 limit_low[index], map[index].name);
-      else if (count[index] == limit_high[index])
-	fprintf (dump_file, "***dbgcnt: upper limit %d reached for %s.***\n",
-		 limit_high[index], map[index].name);
-    }
+  /* Do not print the info for default lower limit.  */
+  if (count[index] == limit_low[index] && limit_low[index] > 0)
+    print_limit_reach (map[index].name, limit_low[index], false);
+  else if (count[index] == limit_high[index])
+    print_limit_reach (map[index].name, limit_high[index], true);
 
   return dbg_cnt_is_enabled (index);
 }

gcc/testsuite/ChangeLog

+2019-03-29  Martin Liska  <mliska@suse.cz>
+
+	* gcc.dg/ipa/ipa-icf-39.c: Prine '***dbgcnt' output.
+	* gcc.dg/pr68766.c: Likewise.
+
 2019-03-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/87485

gcc/testsuite/gcc.dg/ipa/ipa-icf-39.c

@@ -2,6 +2,7 @@
 /* { dg-require-alias "" } */
 /* { dg-options "-O2 -fdump-ipa-icf -fmerge-all-constants -fdbg-cnt=merged_ipa_icf:1:3"  } */
 /* { dg-prune-output "dbg_cnt 'merged_ipa_icf' set to 1-3" } */
+/* { dg-prune-output "\\*\\*\\*dbgcnt:.*limit.*reached" } */
 
 static int a;
 static int b;

gcc/testsuite/gcc.dg/pr68766.c

@@ -2,6 +2,7 @@
 /* { dg-options "-O2 -ftree-vectorize -fdbg-cnt=vect_loop:1" } */
 /* { dg-additional-options "-mavx2" { target { i?86-*-* x86_64-*-* } } } */
 /* { dg-prune-output "dbg_cnt 'vect_loop' set to 0-1" } */
+/* { dg-prune-output "\\*\\*\\*dbgcnt:.*limit.*reached" } */
 
 int a, b, g, h;
 int c[58];