53 lines
1010 B
GLSL
53 lines
1010 B
GLSL
#version 310 es
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precision mediump float;
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layout(location = 0) out int FragColor;
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void main()
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{
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FragColor = 16;
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// Basic loop variable.
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for (int i = 0; i < 25; i++)
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FragColor += 10;
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// Multiple loop variables.
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for (int i = 1, j = 4; i < 30; i++, j += 4)
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FragColor += 11;
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// A potential loop variables, but we access it outside the loop,
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// so cannot be one.
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int k = 0;
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for (; k < 20; k++)
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FragColor += 12;
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k += 3;
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FragColor += k;
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// Potential loop variables, but the dominator is not trivial.
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int l;
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if (k == 40)
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{
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for (l = 0; l < 40; l++)
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FragColor += 13;
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return;
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}
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else
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{
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l = k;
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FragColor += l;
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}
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// Vectors cannot be loop variables
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for (ivec2 i = ivec2(0); i.x < 10; i.x += 4)
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{
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FragColor += i.y;
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}
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// Check that static expressions can be used before the loop header.
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int m = 0;
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m = k;
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int o = m;
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for (; m < 40; m++)
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FragColor += m;
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FragColor += o;
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}
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