------- Comment #1 from pbrook at gcc dot gnu dot org 2009-03-12 13:45 ------- I'm not so sure documenting these is a good idea. Aren't these really internal implementation details that are accidentally exposed via asm()?
IMHO putting them in the user documentation is risky because it means users have a legitimate grievance when we break them. I suspect many of the modifiers also don't do what you expect, and only work in very limited circumstances for particular .md patterns. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39440
