* dwarf2out.c (gen_lexical_block_die): Initialize stmt_die.

From-SVN: r224189

gcc/ChangeLog

+2015-06-06  Aldy Hernandez  <aldyh@redhat.com>
+
+	* dwarf2out.c (gen_lexical_block_die): Initialize stmt_die.
+
 2015-06-06  Richard Sandiford  <richard.sandiford@arm.com>
 
 	* emit-rtl.c, expr.c, gcse.c, optabs.c, optabs.h, print-rtl.c,

gcc/dwarf2out.c

@@ -19818,7 +19818,7 @@ static void
 gen_lexical_block_die (tree stmt, dw_die_ref context_die)
 {
   dw_die_ref old_die = BLOCK_DIE (stmt);
-  dw_die_ref stmt_die;
+  dw_die_ref stmt_die = NULL;
   if (!old_die)
     {
       stmt_die = new_die (DW_TAG_lexical_block, context_die, stmt);
@@ -19859,12 +19859,12 @@ gen_lexical_block_die (tree stmt, dw_die_ref context_die)
   if (old_die)
     stmt_die = old_die;
 
-  if (!early_dwarf)
-    {
   /* A non abstract block whose blocks have already been reordered
      should have the instruction range for this block.  If so, set the
      high/low attributes.  */
-      if (! BLOCK_ABSTRACT (stmt) && TREE_ASM_WRITTEN (stmt))
+  if (!early_dwarf && !BLOCK_ABSTRACT (stmt) && TREE_ASM_WRITTEN (stmt))
+    {
+      gcc_assert (stmt_die);
       add_high_low_attributes (stmt, stmt_die);
     }