3rd input of Math.fma() is processed as a temp not as an input:

diff --git a/src/share/vm/c1/c1_LIR.cpp b/src/share/vm/c1/c1_LIR.cpp
--- a/src/share/vm/c1/c1_LIR.cpp
+++ b/src/share/vm/c1/c1_LIR.cpp
@@ -677,9 +677,7 @@
 
 // LIR_Op3
     case lir_idiv:
- case lir_irem:
- case lir_fmad:
- case lir_fmaf: {
+ case lir_irem: {
       assert(op->as_Op3() != NULL, "must be");
       LIR_Op3* op3= (LIR_Op3*)op;
 
@@ -697,6 +695,17 @@
       break;
     }
 
+ case lir_fmad:
+ case lir_fmaf: {
+ assert(op->as_Op3() != NULL, "must be");
+ LIR_Op3* op3= (LIR_Op3*)op;
+ assert(op3->_info == NULL, "no info");
+ do_input(op3->_opr1);
+ do_input(op3->_opr2);
+ do_input(op3->_opr3);
+ do_output(op3->_result);
+ break;
+ }
 
 // LIR_OpJavaCall
     case lir_static_call: