src/share/vm/classfile/vmSymbols.cpp

*** 416,428 ****
--- 416,465 ----
    default:
      return 0;
    }
  }
  
+ bool vmIntrinsics::is_intrinsic_available(vmIntrinsics::ID id) {
+   return !vmIntrinsics::is_intrinsic_disabled(id) &&
+     !vmIntrinsics::is_disabled_by_flags(id);
+ }
+ 
+ bool vmIntrinsics::is_intrinsic_disabled(vmIntrinsics::ID id) {
+   assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+ 
+   ResourceMark rm;
+   ccstr DisableIntrinsicString = DirectiveSet::canonicalize_disableintrinsic(DisableIntrinsic);
+   // Create a copy of the string that contains the list of disabled
+   // intrinsics. The copy is created because the string
+   // will be modified by strtok(). Then, the list is tokenized with
+   // ',' as a separator.
+   size_t length = strlen(DisableIntrinsicString);
+   char* local_list = NEW_RESOURCE_ARRAY(char, length + 1);
+   strncpy(local_list, DisableIntrinsicString, length + 1);
+ 
+   char* token = strtok(local_list, ",");
+   while (token != NULL) {
+     if (strcmp(token, vmIntrinsics::name_at(id)) == 0) {
+       return true;
+     }
+     else {
+       token = strtok(NULL, ",");
+     }
+   }
+ 
+   return false;
+ }
+ 
+ 
  bool vmIntrinsics::is_disabled_by_flags(const methodHandle& method) {
    vmIntrinsics::ID id = method->intrinsic_id();
    assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
+   return is_disabled_by_flags(id);
+ }
+ 
+ bool vmIntrinsics::is_disabled_by_flags(vmIntrinsics::ID id) {
+   assert(id != vmIntrinsics::_none, "must be a VM intrinsic");
  
    // -XX:-InlineNatives disables nearly all intrinsics except the ones listed in
    // the following switch statement.
    if (!InlineNatives) {
      switch (id) {