https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69977
Bug ID: 69977
Summary: internal compiler error: Segmentation fault when using
generic lambdas
Product: gcc
Version: 5.3.1
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub.gocol at gmail dot com
Target Milestone: ---
Created attachment 37802
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37802&action=edit
compiler output, preprocessed input that causes crash
class A {
private:
void method(int i) {
(void) i;
}
public:
void publicMethod() {
auto lambda = [&] (const auto k) {
method(k);
};
lambda(42);
}
};
int main()
{
A a;
a.publicMethod();
return 0;
}
===
Following code causes g++ to crash:
test.cpp: In lambda function:
test.cpp:10:13: internal compiler error: Segmentation fault
method(k);
^
I'm compiling with command: g++ -std=c++14 file.cpp
output of g++ -v:
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 5.3.1-8'
--with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-5 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib
--disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --with-arch-32=i586 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 5.3.1 20160205 (Debian 5.3.1-8)
In attachment I provided:
- full compiler output (with backtrace)
- preprocessed input that causes crash
- preprocessed, slightly modified input, that works as expected
