re PR c/6809 (GCC 3.1 cc1 crashes if -fverbose-asm is specified)

	PR c/6809
	* print-rtl.c (print_mem_expr): Don't crash on unnamed fields.

	* gcc.dg/20020530-1.c: New test.

From-SVN: r54463

gcc/ChangeLog

 2002-06-10  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c/6809
+	* print-rtl.c (print_mem_expr): Don't crash on unnamed fields.
+
+2002-06-10  Jakub Jelinek  <jakub@redhat.com>
+
 	PR optimization/6842
 	* combine.c (combine_simplify_rtx) [SUBREG]: Don't ICE if VOIDmode
 	operand subreg cannot be simplified.

gcc/print-rtl.c

@@ -88,8 +88,9 @@ print_mem_expr (outfile, expr)
 	print_mem_expr (outfile, TREE_OPERAND (expr, 0));
       else
 	fputs (" <variable>", outfile);
-      fprintf (outfile, ".%s",
-	       IDENTIFIER_POINTER (DECL_NAME (TREE_OPERAND (expr, 1))));
+      if (DECL_NAME (TREE_OPERAND (expr, 1)))
+	fprintf (outfile, ".%s",
+		 IDENTIFIER_POINTER (DECL_NAME (TREE_OPERAND (expr, 1))));
     }
   else if (DECL_NAME (expr))
     fprintf (outfile, " %s", IDENTIFIER_POINTER (DECL_NAME (expr)));

gcc/testsuite/ChangeLog

@@ -6,6 +6,8 @@
 
 	* gcc.dg/20020531-1.c: New test.
 
+	* gcc.dg/20020530-1.c: New test.
+
 2002-06-07  Roger Sayle  <roger@eyesopen.com>
 
 	* gcc.dg/20020607-2.c: New test case.

gcc/testsuite/gcc.dg/20020530-1.c

+/* PR c/6809
+   Test -fverbose-asm with unnamed fields.  */
+/* { dg-do compile } */
+/* { dg-options "-fverbose-asm" } */
+
+typedef union U
+{
+  struct
+  {
+    unsigned int a;
+    int b;
+  };
+  long long c;
+} *T;
+
+int foo (T x)
+{
+  int r = x->a + x->b;
+  return r;
+}