src/hotspot/share/c1/c1_LinearScan.cpp

@@ -1086,11 +1086,13 @@
 
   // optimizations for second input operand of arithmehtic operations on Intel
   // this operand is allowed to be on the stack in some cases
   BasicType opr_type = opr->type_register();
   if (opr_type == T_FLOAT || opr_type == T_DOUBLE) {
-    if ((UseSSE == 1 && opr_type == T_FLOAT) || UseSSE >= 2 S390_ONLY(|| true)) {
+#ifdef X86
+    if ((UseSSE == 1 && opr_type == T_FLOAT) || UseSSE >= 2) {
+#endif
       // SSE float instruction (T_DOUBLE only supported with SSE2)
       switch (op->code()) {
         case lir_cmp:
         case lir_add:
         case lir_sub:

@@ -1105,10 +1107,11 @@
           }
         }
         default:
           break;
       }
+#ifdef X86
     } else {
       // FPU stack float instruction
       switch (op->code()) {
         case lir_add:
         case lir_sub:

@@ -1124,10 +1127,11 @@
         }
         default:
           break;
       }
     }
+#endif
     // We want to sometimes use logical operations on pointers, in particular in GC barriers.
     // Since 64bit logical operations do not current support operands on stack, we have to make sure
     // T_OBJECT doesn't get spilled along with T_LONG.
   } else if (opr_type != T_LONG LP64_ONLY(&& opr_type != T_OBJECT)) {
     // integer instruction (note: long operands must always be in register)