--- a/hotspot/src/cpu/ppc/vm/ppc.ad	Mon Feb 16 14:07:36 2015 +0100
+++ b/hotspot/src/cpu/ppc/vm/ppc.ad	Sat Mar 14 11:21:04 2015 +0100
@@ -4416,11 +4416,11 @@
   interface(CONST_INTER);
 %}
 
-// constant 'float +0.0'.
+// Float Immediate: +0.0f.
 operand immF_0() %{
-  predicate((n->getf() == 0) &&
-            (fpclassify(n->getf()) == FP_ZERO) && (signbit(n->getf()) == 0));
+  predicate(jint_cast(n->getf()) == 0);
   match(ConF);
+
   op_cost(0);
   format %{ %}
   interface(CONST_INTER);