[require]
GLSL >= 1.40

[vertex shader]
/* Looking at the IR dump, the compiler frontend generates
 *
 * (expression bvec2 ubo_load (constant uint (0)) (constant uint (8)))
 *
 * to load s2.bv.x.  However, the GL API (correctly) believes that
 * s2.bv is at offset 16.  Deleting any field from S1 or S2 (or
 * putting the contents of S2 directly in the UBO) masks the problem.
 * It seems that some part of the compiler stack is not putting
 * padding after s1 to align bv to a vec4 boundary.
 */
struct S1 {
    int   i;
};

struct S2 {
    S1    s1;
    bvec2 bv;
};

layout(std140) uniform UB1 {
    S2    s2;
};

flat out int vertex_pass;
in vec4 piglit_vertex;

void main()
{
    vertex_pass = int(s2.bv.x);

    gl_Position = piglit_vertex;
}

[fragment shader]
out vec4 piglit_fragcolor;
flat in int vertex_pass;

void main()
{
    piglit_fragcolor = bool(vertex_pass) ? vec4(0, 1, 0, 1) : vec4(1, 0, 0, 1);
}

[test]
link success

active uniform s2.bv GL_UNIFORM_TYPE GL_BOOL_VEC2
#active uniform s2.bv GL_UNIFORM_OFFSET 16

uniform int s2.bv 1 1

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