diff --git a/src/cpu/ppc/vm/ppc.ad b/src/cpu/ppc/vm/ppc.ad
index b3ca8ad9c7fbd11b4b1fe9f0da138d8852449b99..54c236101e6d720f638f7977c43cce31d3794a1e 100644
--- a/src/cpu/ppc/vm/ppc.ad
+++ b/src/cpu/ppc/vm/ppc.ad
@@ -5469,7 +5469,7 @@ instruct loadUI2L(iRegLdst dst, memory mem, immL_32bits mask) %{
 %}
 
 // Match loading integer and casting it to long.
-instruct loadI2L(iRegLdst dst, memory mem) %{
+instruct loadI2L(iRegLdst dst, memoryAlg4 mem) %{
   match(Set dst (ConvI2L (LoadI mem)));
   predicate(_kids[0]->_leaf->as_Load()->is_unordered());
   ins_cost(MEMORY_REF_COST);
@@ -5485,7 +5485,7 @@ instruct loadI2L(iRegLdst dst, memory mem) %{
 %}
 
 // Match loading integer and casting it to long - acquire.
-instruct loadI2L_ac(iRegLdst dst, memory mem) %{
+instruct loadI2L_ac(iRegLdst dst, memoryAlg4 mem) %{
   match(Set dst (ConvI2L (LoadI mem)));
   ins_cost(3*MEMORY_REF_COST);