[Bug c++/70486] New: Constexpr array captured in lambda function (used via std::function)

[krzyk240 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70486

            Bug ID: 70486
           Summary: Constexpr array captured in lambda function (used via
                    std::function)
           Product: gcc
           Version: 5.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: krzyk240 at gmail dot com
  Target Milestone: ---

Created attachment 38150
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38150&action=edit
The *.i* file

////////////////////////////////////////////////////////////////////

#include <iostream>
#include <functional>

int main() {
    constexpr int t[2] = { 1, 2 };
        std::function<void()> foo = [&] {
                for (int i = 0; i < 2; ++i)
                        std::cout << t[i] << ' ';
        };

        foo();
        return 0;
}

////////////////////////////////////////////////////////////////////

$ g++-5.1 -std=c++11 -Wall -Wextra main.cpp -v -save-temps

Using built-in specs.
COLLECT_GCC=g++-5.1
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.1.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-5.1.0/configure --prefix=/usr/local --disable-multilib
--without-mpc --without-mpfr --without-gmp --without-cloog --without-isl
--enable-languages=c,c++
Thread model: posix
gcc version 5.1.0 (GCC) 
COLLECT_GCC_OPTIONS='-std=c++11' '-Wall' '-Wextra' '-v' '-save-temps'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.1.0/cc1plus -E -quiet -v
-imultiarch x86_64-linux-gnu -D_GNU_SOURCE main.cpp -mtune=generic
-march=x86-64 -std=c++11 -Wall -Wextra -fpch-preprocess -o main.ii
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:

/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../include/c++/5.1.0

/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../include/c++/5.1.0/x86_64-unknown-linux-gnu

/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../include/c++/5.1.0/backward
 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/include
 /usr/local/include
 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/include-fixed
 /usr/include/x86_64-linux-gnu
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-std=c++11' '-Wall' '-Wextra' '-v' '-save-temps'
'-shared-libgcc' '-mtune=generic' '-march=x86-64'
 /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.1.0/cc1plus -fpreprocessed
main.ii -quiet -dumpbase main.cpp -mtune=generic -march=x86-64 -auxbase main
-Wall -Wextra -std=c++11 -version -o main.s
GNU C++11 (GCC) version 5.1.0 (x86_64-unknown-linux-gnu)
        compiled by GNU C version 5.1.0, GMP version 5.0.2, MPFR version
3.1.0-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++11 (GCC) version 5.1.0 (x86_64-unknown-linux-gnu)
        compiled by GNU C version 5.1.0, GMP version 5.0.2, MPFR version
3.1.0-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 03db94ff6398330bffd2a80db4ec6941
main.cpp: In lambda function:
main.cpp:8:20: internal compiler error: in make_decl_rtl, at varasm.c:1313
    std::cout << t[i] << ' ';
                    ^
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

////////////////////////////////////////////////////////////////////

$ uname -a

Linux stacked-crooked 3.2.0-74-virtual #109-Ubuntu SMP Tue Dec 9 17:04:48 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux