https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84813
Bug ID: 84813
Summary: internal compiler error: Segmentation fault with
lambdas and constexpr variables
Product: gcc
Version: 7.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: wtt6 at cornell dot edu
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Build: x86_64-pc-linux-gnu
Created attachment 43619
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43619&action=edit
test.cpp
The attached source file causes segfaults in gcc 7.3.0 and 6.4.0 when compiling
with debug symbols. (The below output is from a Gentoo system but I have
verified that this occurs elsewhere as well.)
$ g++-7.3.0 -v -std=c++14 -g test.cpp
Using built-in specs.
COLLECT_GCC=g++-7.3.0
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/7.3.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /var/tmp/portage/sys-devel/gcc-7.3.0/work/gcc-7.3.0/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/7.3.0
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/7.3.0
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/7.3.0/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/7.3.0/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/7.3.0/python
--enable-languages=c,c++,fortran --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 7.3.0 p1.0' --disable-esp --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
--disable-libmpx --enable-vtable-verify --enable-libvtv --enable-lto
--without-isl --enable-libsanitizer --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 7.3.0 (Gentoo 7.3.0 p1.0)
COLLECT_GCC_OPTIONS='-v' '-std=c++14' '-g' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/usr/libexec/gcc/x86_64-pc-linux-gnu/7.3.0/cc1plus -quiet -v -D_GNU_SOURCE
test.cpp -quiet -dumpbase test.cpp -mtune=generic -march=x86-64 -auxbase test
-g -std=c++14 -version -o /tmp/ccwMTi4n.s
GNU C++14 (Gentoo 7.3.0 p1.0) version 7.3.0 (x86_64-pc-linux-gnu)
compiled by GNU C version 7.3.0, GMP version 6.1.2, MPFR version 3.1.6,
MPC version 1.0.3, isl version noneGGC heuristics: --param ggc-min-expand=100
--param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/../../../../x86_64-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/x86_64-pc-linux-gnu
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/backward
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include-fixed
/usr/include
End of search list.
GNU C++14 (Gentoo 7.3.0 p1.0) version 7.3.0 (x86_64-pc-linux-gnu)
compiled by GNU C version 7.3.0, GMP version 6.1.2, MPFR version 3.1.6,
MPC version 1.0.3, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 97a14d92d195bbf5fa3050d06d00adda
g++-7.3.0: internal compiler error: Segmentation fault (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
