https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30527
David <gccbugzilla at limegreensocks dot com> changed:
What |Removed |Added
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CC| |gccbugzilla@limegreensocks.
| |com
--- Comment #5 from David <gccbugzilla at limegreensocks dot com> ---
These modifiers are intended primarily for use by Machine Descriptions. As a
result, some of them aren't going to be meaningful/usable by inline asm code.
And it makes sense to leave open the option to change their meaning should
future MD work require it, something that documenting them all would prevent.
On the other hand, some of these values are indeed quite useful for inline asm.
The compromise, as evidenced by 6.43.2.7 (added in v5.x), is to document
certain commonly needed/used modifiers (such as the %k0 referenced above).
If there is some additional modifier that you need, I'd recommend opening a new
bug and making an explicit case for it.
In the meantime, I recommend closing this bug (as fixed).
