[Bug preprocessor/53525] Performance regression due to enabling track-macro-expansion

[jimis at gmx dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53525

--- Comment #8 from jimis <jimis at gmx dot net> 2012-05-30 06:06:16 UTC ---
Created attachment 27522
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27522
Introduce obstack_{mark,release} functions.