[Bug 103972] GL_ARB_gpu_shader_int64. Compute shader. Shared storage.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103972

            Bug ID: 103972
           Summary: GL_ARB_gpu_shader_int64. Compute shader. Shared
                    storage.
           Product: Mesa
           Version: 17.3
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: kampeador at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 135802
  --> https://bugs.freedesktop.org/attachment.cgi?id=135802&action=edit
main.cpp and shader.

Hello.
I can't assign a variable with the data from shared storage. Before 17.2.5 this
bug affected all storage types, when using loops. It was fixed. Now its with
shared storage only. Some algorithms are impossible to implement efficiently.
I've created a test app to reproduce this bug.
Output should be:
OUTPUT: 2101479989,1917184202,4191109983,1779160146
Currently it is:
0,0,4191109983,1779160146

It was also tested with AMD proprietary driver(GL_AMD_gpu_shader_int64) on
Windows 10 and worked correct.
Note 1: If you remove a "shared" qualifier inside shader, you will see a
correct output.
Note 2: Sometimes an app freezes my OS on Shader Program execution.

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