[require]
GLSL >= 4.00
GL_ARB_gpu_shader_int64

[vertex shader passthrough]

[fragment shader]
#version 400
#extension GL_ARB_gpu_shader_int64: require

uniform int64_t src[2];

out vec4 piglit_fragcolor;

void main()
{
    if ((src[0] - src[1]) == -1l)
        piglit_fragcolor = vec4(0.0, 1.0, 0.0, 1.0);
    else
        piglit_fragcolor = vec4(1.0, 0.0, 0.0, 1.0);
}

[test]
uniform int64_t src[0] 0x8000000000000000
uniform int64_t src[1] 0x8000000000000001

draw rect -1 -1 2 2
probe all rgb 0.0 1.0 0.0