[Bug 91857] Mesa 10.6.3 linker is slow

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91857

--- Comment #10 from Clive McCarthy <CliveMcCarthy at gmail.com> ---
Just for grins I did this bananas and pears comparison: I ran my code on an
Atom 330 1.6GHz with an Nvidia ION GPU. This was once my main target platform
before the Intel NUCs arrived and effectively killed off Nvidia's low-end
graphics.

    OpenGL version:        2.1.2 NVIDIA 331.38
    OpenGL renderer:    ION/integrated/SSE2
    GLSL version:        1.20 NVIDIA via Cg compiler
    GLSL vertex         =   461.687 ms
    GLSL fragment       =   105.462 ms
    GLSL linking        = 14350.100 ms

As you can see it took the Nvidia linker 14 seconds to link my shader but an
Atom 330 at 1.6GHz isn't much of a processor. An i5-5250U 1.6GHz is taking 59
seconds with Mesa 10.6.3 to link the same shader.

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