[Bug target/46092] Improve constant handling of thumb2 instructions

[ams at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46092

--- Comment #3 from Andrew Stubbs <ams at gcc dot gnu.org> 2010-12-10 17:27:04 UTC ---
Oh, I should say, what it actually does is this:

         subhi   r0, r0, #65280   ; 0xff00
         subhi   r0, r0, #241     ; 0x00f1