8305227: [s390x] build broken after JDK-8231349

Reviewed-by: shade, lucy, kvn

Author: offamitkumar

src/hotspot/cpu/s390/stubGenerator_s390.cpp

@@ -3152,6 +3152,13 @@ class StubGenerator: public StubCodeGenerator {
 
     // Arraycopy stubs used by compilers.
     generate_arraycopy_stubs();
+
+    // nmethod entry barriers for concurrent class unloading
+    BarrierSetNMethod* bs_nm = BarrierSet::barrier_set()->barrier_set_nmethod();
+    if (bs_nm != NULL) {
+      StubRoutines::zarch::_nmethod_entry_barrier = generate_nmethod_entry_barrier();
+    }
+
   }
 
   void generate_compiler_stubs() {
@@ -3199,12 +3206,6 @@ class StubGenerator: public StubCodeGenerator {
       StubRoutines::_sha512_implCompressMB = generate_SHA512_stub(true,  "SHA512_multiBlock");
     }
 
-    // nmethod entry barriers for concurrent class unloading
-    BarrierSetNMethod* bs_nm = BarrierSet::barrier_set()->barrier_set_nmethod();
-    if (bs_nm != NULL) {
-      StubRoutines::zarch::_nmethod_entry_barrier = generate_nmethod_entry_barrier();
-    }
-
 #ifdef COMPILER2
     if (UseMultiplyToLenIntrinsic) {
       StubRoutines::_multiplyToLen = generate_multiplyToLen();