[Bug c/20277] New: -mcpu=power4 vs. -maltivec

["benh at kernel dot crashing dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Since 3.4.x, you can't use both -mcpu=power4 and -maltivec on ppc targets. This
is critical that it's fixed before 4.0 as the linux kernel will rely on this.
It's currently using -mcpu=970 as a workaround since it has one file using
-maltivec (the RAID6 code), but this workaround isn't suitable for 4.0 due to
implicit generation of vector code.

-- 
           Summary: -mcpu=power4 vs. -maltivec
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: benh at kernel dot crashing dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: powerpc64-linux-gcc
GCC target triplet: powerpc64-linux-gcc


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20277