[Bug target/19490] New: PowerPC back end ignores SPE command-line options

["mmitchel at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

For PowerPC configurations (like powerpc-unknown-linux-gnu) which do not support
SPE, the SPE-related command-line options (like -misel) are silently ignored. 
That can result in users thinking that they are getting that functionality when
they are not.

David Edelsohn suggests moving those options into SUBTARGET_OPTIONS, so that the
options are only available with SPE-supporting configurations.

-- 
           Summary: PowerPC back end ignores SPE command-line options
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mmitchel at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: powerpc-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19490