[Bug 87103] Compilation is *very* slow.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87103

--- Comment #7 from Gonz <gonzhauser at yahoo.de> ---
This one takes 13 seconds to compile. Change n to 70 or 80 and it gets worse.

[require]
GLSL >= 1.30

[fragment shader]
out vec4 fragColor;

const int n = 60;

vec4 a[n];
vec4 b[n];
vec4 c[4];

void init() {
    for(int i = 0; i < n; ++i) {
        a[i] = vec4(0.1, 0, 0, 0);
        b[i] = vec4(0.1, 0, 0, 0);
    }
}

void prod(in vec4 a[n], in vec4 b[n], out vec4 result[4]) {
    result[0] = vec4(0);
    for(int i = 0; i < n; ++i) {
        result[0] += a[i] * b[i];
    }
}

void main()
{
    init();
    prod(a, b, c);
    fragColor = c[0];
}

[test]

draw rect -1 -1 2 2
probe all rgba 0.6 0.0 0.0 0.0

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