[Bug pch/53880] [4.8 Regression] compile time regression when generating precompiled headers for boost

[stevenb.gcc at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53880

--- Comment #11 from stevenb.gcc at gmail dot com <stevenb.gcc at gmail dot 
com> 2012-07-24 09:41:18 UTC ---
> Err, isn't the GTY annotation in
>
>      as y1.  x0 is the spelling location for the argument token "1",
>      and x2 is the spelling location for the argument token "2".  */
>   source_location * GTY((length ("2 * %h.n_tokens"))) macro_locations;
>
> simply pointless?

I don't think so. You still want to pointer-rewrite it if you output a PCH.