[Bug 103322] i965: dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.23 takes 3m22s to compile

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103322

            Bug ID: 103322
           Summary: i965:
                    dEQP-GLES31.functional.ssbo.layout.random.all_shared_b
                    uffer.23 takes 3m22s to compile
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: chadversary at chromium.org
        QA Contact: intel-3d-bugs at lists.freedesktop.org

This bug prevents the Android CTS from passing. I see two ways to make the CTS
happy: 1) convince the Android CTS team to increase the timeout for dEQP, or 2)
fix Mesa. I haven't yet discussed option #1 with the Android team.

Tested on dual-core Skylake machine on the following commits and build configs.
I built everything in release mode.

mesa master

  ./configure --disable-debug -DNDEBUG CFLAGS='-g -O2' CXXFLAGS=same ...

  commit fbf39fd7c33d56271d79bdbe039605588c8d84db
  CommitDate: Tue Oct 17 15:34:35 2017 -0700                                    
  Subject: meson: turn on pl111 not vc4 when pl111 driver specificed         

vk-gl-cts master

  cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DEQP_TARGET=Wayland ...

  commit f172e07bfefa71ca877674d0553011993ef3c887
  CommitDate: Fri Sep 29 03:39:25 2017 -0400
  Subject: Test BLOCK_INDEX of uniform inside block array

Similarly, dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.5 takes
11 seconds to compile.

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