Restore LTO PGO bootstrap after ea0b1252.

	* value-prof.c (stream_out_histogram_value): Restore LTO PGO
	bootstrap by missing removal of invalid sanity check.

gcc/ChangeLog

 2020-02-18  Martin Liska  <mliska@suse.cz>
 
+	* value-prof.c (stream_out_histogram_value): Restore LTO PGO
+	bootstrap by missing removal of invalid sanity check.
+
+2020-02-18  Martin Liska  <mliska@suse.cz>
+
 	PR ipa/92518
 	* ipa-icf-gimple.c (func_checker::compare_gimple_assign):
 	Always compare LHS of gimple_assign.

gcc/value-prof.c

@@ -332,7 +332,7 @@ stream_out_histogram_value (struct output_block *ob, histogram_value hist)
       /* When user uses an unsigned type with a big value, constant converted
 	 to gcov_type (a signed type) can be negative.  */
       gcov_type value = hist->hvalue.counters[i];
-      if (hist->type == HIST_TYPE_TOPN_VALUES && i > 0)
+      if (hist->type == HIST_TYPE_TOPN_VALUES)
 	;
       else
 	gcc_assert (value >= 0);