-fno-ipa-pure-const should be added to bench/security/CMakeLists.txt

[nishiken]

Could you please add -fno-ipa-pure-const to the compile options set by the add_security_test macro described in bench/security/CMakeLists.txt ?
Without this option, tests such as write_zero_size may omit code generation and not work as intended.

[jvoisin]

Feel free to send a pull-request :)