On Mon, Jul 2, 2012 at 8:39 PM, Roland McGrath <mcgra...@google.com> wrote: > On Sun, Jul 1, 2012 at 1:08 AM, Uros Bizjak <ubiz...@gmail.com> wrote: >> Based on the observation above, the patch is OK for mainline, but >> please also handle "rep nop" case. > > Here's the new version of the patch that does that. Note that someone > needs to commit this for me, since I am not empowered to do it myself. > > gcc/ > 2012-07-02 Roland McGrath <mcgra...@google.com> > > * configure.ac (HAVE_AS_IX86_REP_LOCK_PREFIX): Also require that the > assembler accept 'rep bsf ...', 'rep bsr ...', 'rep ret', and 'rep > nop'. > * configure: Regenerated. > * config/i386/i386.md (simple_return_internal_long): Use %; > (ctz<mode>2): Likewise. > (*pause): Likewise.
The patch is OK. I have committed it to the mainline SVN. Thanks, Uros.