#include <metal_stdlib>

using namespace metal;

template<typename T, size_t N>
struct tint_array {
    const constant T& operator[](size_t i) const constant { return elements[i]; }
    device T& operator[](size_t i) device { return elements[i]; }
    const device T& operator[](size_t i) const device { return elements[i]; }
    thread T& operator[](size_t i) thread { return elements[i]; }
    const thread T& operator[](size_t i) const thread { return elements[i]; }
    threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
    const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
    T elements[N];
};

struct Inner {
  bool b;
  int4 v;
  float3x3 m;
};

struct Outer {
  tint_array<Inner, 4> a;
};

Outer tint_workgroupUniformLoad(threadgroup Outer* const p) {
  threadgroup_barrier(mem_flags::mem_threadgroup);
  Outer const result = *(p);
  threadgroup_barrier(mem_flags::mem_threadgroup);
  return result;
}

Outer foo(threadgroup Outer* const tint_symbol) {
  return tint_workgroupUniformLoad(tint_symbol);
}