diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 02e048f0c88..a6214b1adbf 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-03-28  Peter Bergner  <bergner@vnet.ibm.com>
+
+	* gcc.dg/stack-usage-1.c (SIZE): Provide proper values for __PPC64__
+	and __PPC__ && __ALTIVEC__.
+
 2011-03-28  Dominique d'Humieres  <dominiq@lps.ens.fr>
 
 	PR testsuite/48238
diff --git a/gcc/testsuite/gcc.dg/stack-usage-1.c b/gcc/testsuite/gcc.dg/stack-usage-1.c
index 1d03a8dc994..f4c4c114b02 100644
--- a/gcc/testsuite/gcc.dg/stack-usage-1.c
+++ b/gcc/testsuite/gcc.dg/stack-usage-1.c
@@ -30,9 +30,15 @@
 #  else
 #    define SIZE 248
 #  endif
+#elif defined (__powerpc64__) || defined (__PPC64__)
+#  define SIZE 180
 #elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) \
       || defined (__POWERPC__) || defined (PPC) || defined (_IBMR2)
-#  define SIZE 240
+#  if defined (__ALTIVEC__)
+#    define SIZE 220
+#  else
+#    define SIZE 240
+#  endif
 #elif defined (__AVR__)
 #  define SIZE 254
 #elif defined (__s390x__)