Dump basic_block flags.

From-SVN: r176537

1 files changed, 20 insertions, 0 deletions

diff --git a/gcc/cfg.c b/gcc/cfg.c
index 5b1dc2649f1..00d1d5cb7d8 100644
--- a/gcc/cfg.c
+++ b/gcc/cfg.c
@@ -549,6 +549,26 @@ dump_bb_info (basic_block bb, bool header, bool footer, int flags,
 	fputs (", maybe hot", file);
       if (cfun && probably_never_executed_bb_p (bb))
 	fputs (", probably never executed", file);
+      if (bb->flags)
+	{
+	  static const char * const bits[] = {
+	    "new", "reachable", "irr_loop", "superblock", "disable_sched",
+	    "hot_partition", "cold_partition", "duplicated",
+	    "non_local_goto_target", "rtl", "forwarder", "nonthreadable",
+	    "modified"
+	  };
+	  unsigned int flags;
+
+	  fputs (", flags:", file);
+	  for (flags = bb->flags; flags ; flags &= flags - 1)
+	    {
+	      unsigned i = ctz_hwi (flags);
+	      if (i < ARRAY_SIZE (bits))
+		fprintf (file, " %s", bits[i]);
+	      else
+		fprintf (file, " <%d>", i);
+	    }
+	}
       fputs (".\n", file);
 
       fprintf (file, "%sPredecessors: ", prefix);