[Bug middle-end/27095] [4.1/4.2 Regression] O2 produces duplicate code

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2006-04-10 09:00 -------
We go via expand_builtin_memset which expands strlen at

      len_rtx = expand_normal (len);

but then, expand via setmem fails, so we bail out

          else if (!set_storage_via_setmem(dest_mem, len_rtx, val_rtx,
                                           dest_align))
            return 0;

and end up doing regular

      return expand_call (exp, target, ignore);

which then expands strlen again.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27095