Re: Partial registers in asm constraints/clobber lists

[Ian Lance Taylor <iant@xxxxxxxxxx>]

Jeremy Hall <gcc.hall@xxxxxxxxx> writes:

> Is it safe to mention part of a register only in a constraint or clobber list?

Yes.

> Does gcc treat registers as a whole so that a mention of any part of a
> register refers to all of it (e.g. register "a").

Yes.

Ian