#include <metal_stdlib>
using namespace metal;
struct S {
  float4 a;
};
struct tint_module_vars_struct {
  device S* v;
};

void foo(tint_module_vars_struct tint_module_vars) {
  (*tint_module_vars.v).a = ((*tint_module_vars.v).a * float4x4(float4(0.0f), float4(0.0f), float4(0.0f), float4(0.0f)));
}