diff -r 8f972594effc -r 6759698e3140 src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
--- a/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Mon May 14 09:36:00 2012 -0700
+++ b/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Tue May 15 10:10:23 2012 +0200
@@ -2446,6 +2446,12 @@
         // Should consider not saving rbx, if not necessary
         __ trigfunc('t', op->as_Op2()->fpu_stack_size());
         break;
+      case lir_exp :
+        __ exp_with_fallback(op->as_Op2()->fpu_stack_size());
+        break;
+      case lir_pow :
+        __ pow_with_fallback(op->as_Op2()->fpu_stack_size());
+        break;
       default      : ShouldNotReachHere();
     }
   } else {