re PR target/18484 (mmix-knuth-mmixware testsuite failure: g++.dg/abi/empty6.C)

	PR target/18484
	* g++.dg/abi/empty6.C: Xfail warning for mmix-*-*.

From-SVN: r91434

gcc/testsuite/ChangeLog

 2004-11-28  Hans-Peter Nilsson  <hp@bitrange.com>
 
+	PR target/18484
+	* g++.dg/abi/empty6.C: Xfail warning for mmix-*-*.
+
 	PR target/18348
 	* gcc.dg/uninit-H.c (ASM): For unknown targets, define to "= 0".
 

gcc/testsuite/g++.dg/abi/empty6.C

@@ -3,11 +3,13 @@
 struct A {};
 
 struct B {
-  A a; // { dg-warning "empty" }
+  A a; // { dg-warning "empty" "" { xfail mmix-*-* } }
   virtual void f () {}
 } __attribute__((aligned(8)));
 /* The preceding attribute is necessary on targets with
    BIGGEST_ALIGNMENT <= 32 to trigger the warning, as otherwise a 32 bit
    offset is split into DECL_FIELD_OFFSET 4 and DECL_FIELD_BIT_OFFSET 0,
    and then there is no discrepancy between DECL_FIELD_OFFSET and
-   byte_position to warn about.  */
+   byte_position to warn about.
+   On the other hand 64-bit targets for example, generally need a larger
+   requested alignment to get the intended warning.  */