stor-layout.c (update_alignment_for_field): New function.

	* stor-layout.c (update_alignment_for_field): New function.
	(place_union_field): Use it.
	(place_field): Likewise.
	* gcc.dg/empty1.C: New test.

From-SVN: r57697

gcc/ChangeLog

+2002-10-01  Mark Mitchell  <mark@codesourcery.com>
+
+	* stor-layout.c (update_alignment_for_field): New function.
+	(place_union_field): Use it.
+	(place_field): Likewise.
+	
 2002-10-01  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* gcc.c (cc1_options): Add space on -auxbase-strip.

gcc/testsuite/ChangeLog

 2002-10-01  Mark Mitchell  <mark@codesourcery.com>
 
+	* gcc.dg/empty1.C: New test.
+
 	* g++.dg/tls/init-2.C: Tweak error messages.
 
 2002-10-01  Richard Sandiford  <rsandifo@redhat.com>

gcc/testsuite/gcc.dg/empty1.c

+/* { dg-do run } */
+/* { dg-options "" } */
+
+struct S { int : 0; };
+union U { int : 0; };
+
+int main () {
+  if (__alignof__ (struct S) != __alignof__ (union U))
+    return 1;
+}