[Bug 102941] shader storage buffer failed to write when buffer variables > 1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102941

            Bug ID: 102941
           Summary: shader storage buffer failed to write when buffer
                    variables > 1
           Product: Mesa
           Version: 17.0
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: jiajia.qin at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

If we have a compute shader like below:
    const std::string &csSource =
        "#version 450\n"
        "layout(local_size_x=1, local_size_y=1, local_size_z=1) in;\n"
        "layout(shared, binding = 1) buffer blockName {\n"
        "    uint data[2];\n"
        "} instanceName;\n"
        "void main()\n"
        "{\n"
        "    instanceName.data[0] = 3u;\n"
        "    instanceName.data[1] = 4u;\n"
        "}\n";

When we check the buffer data in api side, data[0] is 3u as expected, but
data[1] is always 0u.

The error is found in ANGLE angle_end2end_tests. See
https://chromium-review.googlesource.com/c/angle/angle/+/618132/14/src/tests/gl_tests/ShaderStorageBufferTest.cpp#86

Note: The NVDIA driver works well for it. And Intel Win10 OpenGL driver also
works well.

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