On 10/13/2015 02:02 PM, Dominik Vogt wrote:
When "#pragma GCC pop_options" is used on a platform without support for "#pragma GCC target", Gcc emits a warning. As pop_options is useful on targets without the target pragma to restore optimizations flags, the warning should be removed.The attached patch does that rather inelegantly by checking if the pragma_parse hook points to the default implementation. I could't think of a similarly terse but less clumsy way. Suggestions for a better test are very welcome. gcc/ChangeLog: * c-pragma.c: Include targhooks.h. (handle_pragma_pop_options): Do not call default_target_option_pragma_parse to prevent its warning when using "#pragma GCC pop_options" on platforms that do not support "#pragma GCC target".
Why not just remove the code that emits the warning message? Are there situations where the warning is justified?
A testcase would be good. Bernd
