https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66801
Bug ID: 66801 Summary: [6 Regression] gcc miscompiled during PGO/LTO bootstrap Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap Assignee: unassigned at gcc dot gnu.org Reporter: trippels at gcc dot gnu.org Target Milestone: --- On ppc64le gcc gets miscompiled during stagefeedback phase: % /home/trippels/gcc_build_dir_/./gcc/xgcc --version [1] 53644 segmentation fault (core dumped) /home/trippels/gcc_build_dir_/./gcc/xgcc --version % ../gcc/configure --with-cpu=power8 --disable-libstdcxx-pch --disable-libvtv --disable-libitm --disable-libcilkrts --disable-libssp --disable-libgomp --disable-werror --disable-multilib --enable-languages=c,c++ --enable-checking=release --with-build-config=bootstrap-lto % make -j120 BOOT_CFLAGS="-mcpu=power8 -O3 -pipe" STAGE1_CFLAGS="-mcpu=power8 -O3 -pipe" CFLAGS_FOR_TARGET="-mcpu=power8 -O3 -pipe" CXXFLAGS_FOR_TARGET="-mcpu=power8 -O3 -pipe" profiledbootstrap