[Bug target/23983] New: the altivec builtins should be marked as pure/const

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

#   TMT.5_729 = V_MAY_DEF <TMT.5_727>;
  #   TMT.6_730 = V_MAY_DEF <TMT.6_728>;
  y0_351 = __builtin_altivec_vrsqrtefp (B_350);

Almost all of the altivec builtins could be marked as pure/const and should cause less VOPS to be 
added for altivec code.

-- 
           Summary: the altivec builtins should be marked as pure/const
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23983