> On Mon, Aug 26, 2013 at 9:00 AM, Jan Hubicka <hubi...@ucw.cz> wrote: > >> On Mon, Aug 26, 2013 at 7:24 AM, Jan Hubicka <hubi...@ucw.cz> wrote: > >> > Hi, > >> > it seems to be couple weeks I am not able to compile big ltrans unit > >> > with -fdump-tree-all > >> > because the compiler eventually runs out of memory. I think it is one > >> > of your patches > >> > introducing serious memory leak. Can you, please, take a look on this? > >> > It makes my life > >> > harder - it is not fun to wait for 15 minutes for a dump and then see > >> > compiler to ICE... > >> > > >> > Thanks, > >> > Honza > >> > >> > >> The existing pretty printers have always had memory leaks, and > >> part of the work is to reduce that in fact :-( For example, instead > >> of printing directly to the output buffer, many of them construct > >> a string for a given formatter, then send that string to the stream, > >> and that string may or may not be reclaimed. Please give me > >> actionable instructions so I can reproduce your situation. > > > > I think it should be easiert to build with bootstrap-lto and then add > > -fdump-tree-all into > > the final link command line options. > > modify ALL_LINKERFLAGS or BUILD_LINKERFLAGS?
configure --with-build-config=bootstrap-lto . You need plugin enabled buinutils for that. I think there however should be a lot easier way to reproduce it by just dropping some really large source file. Here LTO only runs the backend on very many functions. Honza
