[Bug lto/41638] New: Back-end builtins are mishandled

[pinskia at gcc dot gnu dot org]

lto_get_builtin_tree uses built_in_decls but that is only for the
built_in_class of BUILT_IN_NORMAL.  The back-ends have their own array with the
builtins in them for the class of BUILT_IN_MD.
So currently we translate all of the back-end builtins into "normal" builtins.

This is why gcc.dg/vmx/3a-03.c currently fails;  Most likely all of the vmx
testsuite in fact.
In that example __builtin_altivec_vrefp is changed when reading back the file
into __builtin_lgammal.


-- 
           Summary: Back-end builtins are mishandled
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: wrong-code, ice-on-valid-code, link-failure
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41638