------- Comment #2 from janis at gcc dot gnu dot org 2009-02-28 00:25 ------- The GCC testsuite supports effective-target keywords which can be used anywhere that target lists are used; see the internals manual about Test Directives.
Define an effective-target keyword xxx via check_effective_target_xxx in gcc/testsuite/lib/target-supports.exp. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37578
