Compiler crash (icpc 2016 update 1 and 2017 beta update 2)

[Jorrit_F_]

The compiler crashes for me when trying to compile the following program:

#include <array>

void test_invert_solve(std::array< std::array<double,3>, 3 > A,
                       std::array<double,3> x,
                       std::array<double,3> b)
{
  for (std::size_t i=0; i<3; i++)
    for (std::size_t j=0; j<3; j++)
      b -= A * x;

  for (auto be : b) {}
}


int main()
{
}

The error message looks like this:

-*- mode: compilation; default-directory: "~/Projekte/EXA-DUNE/patches/dune-common/dune/common/test/" -*-
Compilation started at Tue Jun 14 18:47:34

set -ex; CXX=/usr/local/bin/icpc-2017; $CXX --version; $CXX -std=c++14 -O3 -o fmatrixtest.o -c fmatrixtest.cc
+ CXX=/usr/local/bin/icpc-2017
+ /usr/local/bin/icpc-2017 --version
icpc (ICC) 17.0.0 20160517
Copyright (C) 1985-2016 Intel Corporation.  All rights reserved.

+ /usr/local/bin/icpc-2017 -std=c++14 -O3 -o fmatrixtest.o -c fmatrixtest.cc
": internal error: ** The compiler has encountered an unexpected problem.
** Segmentation violation signal raised. **
Access violation or stack overflow. Please contact Intel Support for assistance.

compilation aborted for fmatrixtest.cc (code 4)

Compilation exited abnormally with code 4 at Tue Jun 14 18:47:34

This happens with "icpc (ICC) 16.0.1 20151021" too.

Operating system is Debian 8.5 "jessie", host compiler is "g++ (Debian 4.9.2-10) 4.9.2" in case that matters.

[Anoop_M_Intel]

Hi Jorrit,

Thanks for reporting this issue. I am able to reproduce this problem and I have escalated this to compiler engineering. Looks like the crash just happens in O3 optimization but not for O2.

Regards
Anoop

[Anoop_M_Intel]

This issue is fixed in 17.0 compiler which is available at Intel Registration Center.

Thanks and Regards
Anoop