> On i386-unknown-freebsd6.3 (instead of 8.0) I am getting the following > for SVN revision 139789 and since 2008-08-25 21:00 UTC at least: > > /files/pfeifer/gcc/i386-unknown-freebsd6.3/sys-include -g -O2 -O2 -g -O2 > -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes > -Wmissing-prototypes -Wcast-qual -Wold-style-definition -isystem ./include > -fPIC -pthread -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 > -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../.././gcc > -I/sw/test/GCC/trunk/libgcc -I/sw/test/GCC/trunk/libgcc/. > -I/sw/test/GCC/trunk/libgcc/../gcc -I/sw/test/GCC/trunk/libgcc/../include > -o _muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c > /sw/test/GCC/trunk/libgcc/../gcc/libgcc2.c \ > /sw/test/GCC/trunk/libgcc/../gcc/libgcc2.c: In function '__muldi3': > /sw/test/GCC/trunk/libgcc/../gcc/libgcc2.c:566: internal compiler error: > Segmentation fault: 11 > Please submit a full bug report, > with preprocessed source if appropriate. > See <http://gcc.gnu.org/bugs.html> for instructions. > gmake[3]: *** [_muldi3.o] Error 1 > gmake[3]: Leaving directory
i586-linux is broken in exactly the same way. gimple.c:gimple_build_asm_vec is miscompiled at -O2 -fomit-frame-pointer by regalloc/reload because of inconsistent elimination offsets at a block boundary. It's the IRA merge. I'd suggest opening a PR, I'll attach a reduced testcase and the analysis. -- Eric Botcazou
