http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54638
Bug #: 54638 Summary: [4.8 Regression] bootstraping 4.7.2 with 4.8 broken: cc1: malloc(): memory corruption Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassig...@gcc.gnu.org ReportedBy: mar...@trippelsdorf.de With: ~/gcc/configure --disable-werror --disable-multilib --enable-checking=release --enable-languages=c,c++ and: make BOOT_CFLAGS="-march=native -O2 -pipe" STAGE1_CFLAGS="-march=native -O2 -pipe" CFLAGS_FOR_TARGET="-march=native -O2 -pipe" CXXFLAGS_FOR_TARGET="-march=native -O2 -pipe" bootstrap I get: ... /var/tmp/gcc_build_dir/./gcc/xgcc -B/var/tmp/gcc_build_dir/./gcc/ -B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-unknown-linux-gnu/include -isystem /usr/local/x86_64-unknown-linux-gnu/sys-include -march=native -O2 -pipe -O2 -march=native -O2 -pipe -DIN_GCC -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fpic -I. -I. -I../.././gcc -I/home/markus/gcc/libgcc -I/home/markus/gcc/libgcc/. -I/home/markus/gcc/libgcc/../gcc -I/home/markus/gcc/libgcc/../include -I/home/markus/gcc/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS -DUSE_TLS -o _cmpdi2.o -MT _cmpdi2.o -MD -MP -MF _cmpdi2.dep -DL_cmpdi2 -c /home/markus/gcc/libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS *** glibc detected *** /var/tmp/gcc_build_dir/./gcc/cc1: malloc(): memory corruption: 0x00000000014e8e10 *** That happens with r191468 of trunk.