http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47916
--- Comment #5 from Artem S. Tashkinov <t.artem at mailcity dot com> 2011-02-27 21:06:04 UTC --- Thanks for the explanation! I'm not sure if it's worth opening a new bug report, but GCC crashes when I try to use -fprofile-generate/-fprofile-use together with -flto: g++ -o unrar -O3 -march=core2 -fomit-frame-pointer -fprofile-use -flto rar.o strlist.o strfn.o pathfn.o savepos.o smallfn.o global.o file.o filefn.o filcreat.o archive.o arcread.o unicode.o system.o isnt.o crypt.o crc.o rawread.o encname.o resource.o match.o timefn.o rdwrfn.o consio.o options.o ulinks.o errhnd.o rarvm.o rijndael.o getbits.o sha1.o extinfo.o extract.o volume.o list.o find.o unpack.o cmddata.o filestr.o recvol.o rs.o scantree.o In file included from :43:0: unpack.cpp: In member function ‘Unpack29’: unpack.cpp:202:6: internal compiler error: in duplicate_loop_to_header_edge, at cfgloopmanip.c:1115 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. At first I built unrar using: CXXFLAGS=LDFLAGS=-O3 -march=core2 -fomit-frame-pointer -fprofile-generate -flto then I made a testrun of unrar, then erased object files, then tried to compile it again using: CXXFLAGS=LDFLAGS=-O3 -march=core2 -fomit-frame-pointer -fprofile-use -flto
