8317257: RISC-V: llvm build broken

Reviewed-by: fyang

Author: Vladimir Kempik

src/hotspot/cpu/riscv/c1_LIRAssembler_riscv.cpp

@@ -1515,7 +1515,7 @@ void LIR_Assembler::emit_lock(LIR_OpLock* op) {
   if (LockingMode == LM_MONITOR) {
     if (op->info() != nullptr) {
       add_debug_info_for_null_check_here(op->info());
-      __ null_check(obj);
+      __ null_check(obj, -1);
     }
     __ j(*op->stub()->entry());
   } else if (op->code() == lir_lock) {

src/hotspot/os/linux/os_linux.cpp

@@ -2840,7 +2840,7 @@ void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec,
   #define MAP_FIXED_NOREPLACE MAP_FIXED_NOREPLACE_value
 #else
   // Sanity-check our assumed default value if we build with a new enough libc.
-  static_assert(MAP_FIXED_NOREPLACE == MAP_FIXED_NOREPLACE_value);
+  static_assert(MAP_FIXED_NOREPLACE == MAP_FIXED_NOREPLACE_value, "MAP_FIXED_NOREPLACE != MAP_FIXED_NOREPLACE_value");
 #endif
 
 int os::Linux::commit_memory_impl(char* addr, size_t size,