[Bug c++/56746] [4.8 regression] increased memory usage when compiling C++

[mathias at gaunard dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56746

--- Comment #7 from Mathias Gaunard <mathias at gaunard dot com> 2013-03-28 10:39:53 UTC ---
Using either -save-temps or -ftrack-macro-expansion=0-ftrack-macro-expansion=0
removes the memory hog.
Compiling the preprocessed source does not cause increased memory usage.

So it seems the macro expansion tracking is what's causing a lot of extra
memory usage here.