https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65678
Bug ID: 65678 Summary: internal compiler error: in gen_rtx_SUBREG, at emit-rtl.c:909 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: nheghathivhistha at gmail dot com Created attachment 35236 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35236&action=edit Preprocessed source file I can't compile debug enabled Gentoo Mozilla Firefox 37.0.1 package with Gcc-5.0 trunk revision 221871: srv5 mfbt # x86_64-pc-linux-gnu-g++ -o Unified_cpp_mfbt0.o -c -I../dist/system_wrappers -include /var/tmp/portage/www-client/firefox-37.0.1/work/mozilla-release/config/gcc_hidden.h -DIMPL_MFBT -DMOZ_GLUE_IN_PROGRAM -DAB_CD=en-US -DNO_NSPR_10_SUPPORT -I/var/tmp/portage/www-client/firefox-37.0.1/work/mozilla-release/mfbt -I. -I../dist/include -I/usr/include/nspr -I/usr/include/nss -I/usr/include/pixman-1 -fPIC -DMOZILLA_CLIENT -include ../mozilla-config.h -MD -MP -MF .deps/Unified_cpp_mfbt0.o.pp -Wall -Wempty-body -Woverloaded-virtual -Wsign-compare -Wwrite-strings -Wno-invalid-offsetof -Wcast-align -ggdb -pipe -march=core2 -mtune=core2 -mno-avx -fno-exceptions -fno-strict-aliasing -fno-rtti -fno-exceptions -fno-math-errno -std=gnu++0x -pthread -pipe -DDEBUG -DTRACING -g -freorder-blocks -Os -fno-omit-frame-pointer /var/tmp/portage/www-client/firefox-37.0.1/work/mozilla-release/ff/mfbt/Unified_cpp_mfbt0.cpp --save-temps x86_64-pc-linux-gnu-g++: warning: -pipe ignored because -save-temps specified In file included from /var/tmp/portage/www-client/firefox-37.0.1/work/mozilla-release/ff/mfbt/Unified_cpp_mfbt0.cpp:110:0: /var/tmp/portage/www-client/firefox-37.0.1/work/mozilla-release/mfbt/double-conversion/fixed-dtoa.cc: In function ‘bool double_conversion::FastFixedDtoa(double, int, double_conversion::Vector<char>, int*, int*)’: /var/tmp/portage/www-client/firefox-37.0.1/work/mozilla-release/mfbt/double-conversion/fixed-dtoa.cc:400:1: internal compiler error: in gen_rtx_SUBREG, at emit-rtl.c:909 } ^ Please submit a full bug report, with preprocessed source if appropriate. See <https://bugs.gentoo.org/> for instructions. gcc -v Using built-in specs. COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/5.0.0/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/5.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-5.0.0/work/gcc-5.0.0/configure --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/5.0.0 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/5.0.0/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/5.0.0 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/5.0.0/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/5.0.0/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/5.0.0/include/g++-v5 --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/5.0.0/python --enable-languages=c,c++,fortran,ada --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 5.0.0' --enable-libstdcxx-time --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib --with-multilib-list=m32,m64 --disable-altivec --disable-fixed-point --enable-targets=all --disable-libgcj --enable-libgomp --disable-libmudflap --disable-libssp --disable-libcilkrts --enable-lto --with-isl --disable-isl-version-check --enable-libsanitizer Thread model: posix gcc version 5.0.0 20150405 (experimental) [trunk revision 221871] (Gentoo 5.0.0) Attaching ii file now and will try to reduce it.