Software versions:
    4.4.0-040400rc4-generic
    OpenGL version string: 3.0 Mesa 11.2.0-devel (git-4b9a79b)

GPU hardware:
    OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2) 
    00:02.0 VGA compatible controller [0300]: Intel Corporation Sky Lake Integrated Graphics [8086:1912] (rev 06)

CPU hardware:
    x86_64
    Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
-----------------
Software versions:
    4.3.0-rc3+
    OpenGL version string: 3.0 Mesa 11.2.0-devel (git-4b9a79b)

GPU hardware:
    OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5300 (Broadwell GT2) 
    00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:161e] (rev 06)

CPU hardware:
    x86_64
    Genuine Intel(R) CPU 0000 @ 0.60GHz
------------------
Software versions:
    4.4.0-040400rc4-generic
    OpenGL version string: 3.0 Mesa 11.2.0-devel (git-4b9a79b)

GPU hardware:
    OpenGL renderer string: Mesa DRI Intel(R) Haswell Desktop 
    00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)

CPU hardware:
    x86_64
    Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
-----------------
CTS version:
git@67ae88f31295

command: 
./glcts --deqp-case=ES31-CTS.compute_shader.*

Environment:
Ubuntu 15.10
Mesa built with: --enable-debug
export MESA_GLES_VERSION_OVERRIDE=3.1
export MESA_EXTENSION_OVERRIDE=GL_ARB_compute_shader
-----------------------------

Segfault when running all GLES 3.1 compute shader tests. It is not the same test that segfaults on consecutive runs. However, the most prominent test to segfault is:
ES31-CTS.compute_shader.work-group-size
It is also possible to segfault when only running:
ES31-CTS.compute_shader.work-group-size

The issue is bisected to:
commit 78b81be627734ea7fa50ea246c07b0d4a3a1638a
Author: Jason Ekstrand <jason.ekstrand@intel.com>
Date:   Wed Nov 25 14:14:05 2015 -0800

    nir: Get rid of *_indirect variants of input/output load/store intrinsics