[Bug c/51840] asm goto enhancement request

rth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Jul 10 16:41:00 GMT 2014


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51840

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |rth at gcc dot gnu.org

--- Comment #7 from Richard Henderson <rth at gcc dot gnu.org> ---
(In reply to Kai Tietz from comment #6)
> +         lbl = gimple_label_label (stmt);
> +         if (DECL_NONLOCAL (lbl))
>             return false;
> +         /* If PHI_WANTED is true, we can't operate on user-labels.
> +            See PR 51840.  */
> +         if (phi_wanted
> +             && !DECL_ARTIFICIAL (lbl) && FORCED_LABEL (lbl))
> +           return false;

Why the check for PHI_WANTED?  I must say the comment is less than
enlightening.  Is there any drawback to just

  if (DECL_NONLOCAL (lbl) || FORCED_LABEL (lbl))

?



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