#version 310 es

struct S {
  mat4 a;
};

S v;
void foo() {
  v.a = (v.a * mat4(vec4(0.0f), vec4(0.0f), vec4(0.0f), vec4(0.0f)));
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
}