[Bug inline-asm/42214] gcc generates broken code with -O>=1 for x86_64 after an asm call

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-11-29 13:03 -------
well,

        asm("bswap %0" : "=q"(i) : "q"(i));

is wrong.  You probably want

        asm("bswap %0" : "=q"(i) : "0"(i));


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42214