PR debug/49827

        * dwarf2cfi.c (create_trace_edges): Handle sequences properly.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@176728 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog

+2011-07-24  Richard Henderson  <rth@redhat.com>
+
+	PR debug/49827
+	* dwarf2cfi.c (create_trace_edges): Handle sequences properly.
+
 2011-07-24  Richard Henderson  <rth@redhat.com>
 	* dwarf2cfi.c (maybe_record_trace_start): Add abnormal parameter.

gcc/dwarf2cfi.c

@@ -2507,6 +2507,14 @@ create_trace_edges (rtx insn)
 	for (lab = nonlocal_goto_handler_labels; lab; lab = XEXP (lab, 1))
 	  maybe_record_trace_start (XEXP (lab, 0), insn, true);
     }
+  else if (GET_CODE (PATTERN (insn)) == SEQUENCE)
+    {
+      rtx seq = PATTERN (insn);
+      int i, n = XVECLEN (seq, 0);
+      for (i = 0; i < n; ++i)
+	create_trace_edges (XVECEXP (seq, 0, i));
+      return;
+    }
 
   /* Process EH edges.  */
   if (CALL_P (insn) || cfun->can_throw_non_call_exceptions)