Diagnostic messages output by the assembler can be identified by a tag in the form of {prefix}number, where the prefix is A. The --diag_warning option sets the diagnostic messages that have the specified tags to the warning severity.

You can specify more than one tag with these options by separating each tag using a comma.You can specify the optional assembler prefix A before the tag number. If any prefix other than A is included, the message number is ignored.

You can set the tag to error to downgrade the severity of all downgradeable errors to warnings.