https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80089
Bug ID: 80089
Summary: ICE: Segfault with openMP and a string
Product: gcc
Version: 5.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: agadethrowaway at gmail dot com
Target Milestone: ---
Created attachment 40998
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40998&action=edit
Code to reproduce + .ii file
Version:
g++ (Ubuntu 5.4.1-2ubuntu1~16.04) 5.4.1 20160904
System:
Linux mint 18.1
Minimal code:
#include <iostream>
int main(){
std::string s="";
#pragma omp parallel
while(true){}
}
Compile line:
g++ ICE.cpp -O3 -fopenmp
Output:
ICE.cpp: In function ‘int main()’:
ICE.cpp:6:1: internal compiler error: Segmentation fault
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions.
Makefile:2: recipe for target 'all' failed
make: *** [all] Error 1
I believe these are the compilation options ubuntu uses:
Configured with: -v
--with-pkgversion='Ubuntu 5.4.1-8ubuntu1'
--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
--enable-default-pie
--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
--disable-werror
--with-arch-32=i686
--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
It seems to be a regression in gcc 5 through to gcc 6.2 and gone in gcc 6.3.
Included are the .cpp and .ii files in a .tar.gz.
