From patchwork Tue Oct 30 21:01:28 2012
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Subject: Handle NULL in slim RTL dumps of patterns
Date: Tue, 30 Oct 2012 11:01:28 -0000
From: Steven Bosscher <stevenb.gcc@gmail.com>
X-Patchwork-Id: 195624
Message-Id: <CABu31nPJszYrgm7cd5rXdGJP_2ApyS2cwVFn6+WPShxdo0PCWg@mail.gmail.com>
To: GCC Patches <gcc-patches@gcc.gnu.org>

Hello,

NULL patterns happen in some REG_NOTEs.
Will commit as obvious in a bit...

Ciao!
Steven



        * sched-vis.c (print_pattern): Handle NULL patterns.


Index: gcc/sched-vis.c
===================================================================
--- gcc/sched-vis.c     (revision 192992)
+++ gcc/sched-vis.c     (working copy)
@@ -568,6 +568,11 @@ print_pattern (char *buf, const_rtx x, int verbose
 {
   char t1[BUF_LEN], t2[BUF_LEN], t3[BUF_LEN];

+  if (! x)
+    {
+      sprintf (buf, "(nil)");
+      return;
+    }
   switch (GET_CODE (x))
     {
     case SET: