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# This test verifies that dead code elimination correctly accounts for
# the flow control effects of the "break" statement. In the while
# loop below, the first assignment to f is not dead code, even though
# it is followed by another assignment to f, because the intervening
# break causes the second assignment to be skipped.
[require]
GLSL >= 1.20
[vertex shader]
void main()
{
gl_Position = gl_Vertex;
}
[fragment shader]
void main()
{
float f = 0.0;
while (true) {
f = 1.0; // Should not be dead code eliminated
break;
f = 0.5;
}
gl_FragColor = vec4(1.0 - f, f, 0.0, 1.0);
}
[test]
clear color 0.0 0.0 0.0 0.0
clear
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
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