re PR target/65803 (blackfin: internal compiler error: segment fault linux kernel)

	PR target/65803
	* config/bfin/bfin.c (hwloop_optimize): Initialize
	JUMP_LABEL for newly created jump.

        PR target/65803
	* gcc.c-torture/pr65803.c: New test.

From-SVN: r224866

gcc/ChangeLog

+2015-06-23  Chen Gang  <gang.chen.5i5j@gmail.com>
+
+	PR target/65803
+	* config/bfin/bfin.c (hwloop_optimize): Initialize
+	JUMP_LABEL for newly created jump.
+
 2015-06-23  Tristan Gingold  <gingold@adacore.com>
 
 	* collect-utils.c (collect_wait): Unlink the response file here

gcc/config/bfin/bfin.c

@@ -3775,7 +3775,9 @@ hwloop_optimize (hwloop_info loop)
 	}
       else
 	{
-	  emit_jump_insn (gen_jump (label));
+	  rtx_insn *ret = emit_jump_insn (gen_jump (label));
+	  JUMP_LABEL (ret) = label;
+	  LABEL_NUSES (label)++;
 	  seq_end = emit_barrier ();
 	}
     }

gcc/testsuite/ChangeLog

+2015-06-23  Chen Gang  <gang.chen.5i5j@gmail.com>
+
+        PR target/65803
+	* gcc.c-torture/pr65803.c: New test.
+
 2015-06-23  Patrick Palka  <ppalka@gcc.gnu.org>
 
 	PR c++/30044

gcc/testsuite/gcc.c-torture/compile/pr65803.c

+/* { dg-options "-fno-strict-overflow" } */
+typedef unsigned char __uint8_t;
+typedef __uint8_t uint8_t;
+typedef uint8_t u8_t;
+typedef struct ip_addr ip_addr_t;
+char *
+ipaddr_ntoa_r (const ip_addr_t * addr, char *buf, int buflen)
+{
+  char inv[3];
+  char *rp;
+  u8_t *ap;
+  u8_t n;
+  u8_t i;
+  int len = 0;
+  for (n = 0; n < 4; n++)
+    {
+      while (*ap);
+      while (i--)
+	{
+	  if (len++ >= buflen)
+	    return ((void *) 0);
+	  *rp++ = inv[i];
+	} ap++;
+    }
+}