RISC-V: Missing acquire in JNI_FastGetField::generate_fast_get_int_field0

src/hotspot/cpu/riscv/jniFastGetField_riscv.cpp

@@ -76,6 +76,7 @@ address JNI_FastGetField::generate_fast_get_int_field0(BasicType type) {
   ExternalAddress counter(SafepointSynchronize::safepoint_counter_addr());
   __ la(rcounter_addr, counter);
   __ lwu(rcounter, Address(rcounter_addr));
+  __ membar(MacroAssembler::LoadLoad | MacroAssembler::LoadStore);
   // An even value means there are no ongoing safepoint operations
   __ test_bit(t0, rcounter, 0);
   __ bnez(t0, slow);
@@ -134,6 +135,7 @@ address JNI_FastGetField::generate_fast_get_int_field0(BasicType type) {
   __ membar(MacroAssembler::LoadLoad | MacroAssembler::LoadStore);
 
   __ lw(t0, Address(rcounter_addr));
+  __ membar(MacroAssembler::LoadLoad | MacroAssembler::LoadStore);
   __ bne(rcounter, t0, slow);
 
   switch (type) {