|  | #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 tint_module_vars_struct { | 
|  | thread uint* local_invocation_index_1; | 
|  | threadgroup tint_array<atomic_uint, 4>* wg; | 
|  | }; | 
|  |  | 
|  | struct tint_symbol_1 { | 
|  | tint_array<atomic_uint, 4> tint_symbol; | 
|  | }; | 
|  |  | 
|  | void compute_main_inner(uint local_invocation_index_2, tint_module_vars_struct tint_module_vars) { | 
|  | uint idx = 0u; | 
|  | idx = local_invocation_index_2; | 
|  | { | 
|  | uint2 tint_loop_idx = 0u; | 
|  | while(true) { | 
|  | if (all((tint_loop_idx == uint2(4294967295u)))) { | 
|  | break; | 
|  | } | 
|  | if (!((idx < 4u))) { | 
|  | break; | 
|  | } | 
|  | uint const x_26 = idx; | 
|  | atomic_store_explicit((&(*tint_module_vars.wg)[min(x_26, 3u)]), 0u, memory_order_relaxed); | 
|  | { | 
|  | uint const tint_low_inc = (tint_loop_idx.x + 1u); | 
|  | tint_loop_idx.x = tint_low_inc; | 
|  | uint const tint_carry = uint((tint_low_inc == 0u)); | 
|  | tint_loop_idx.y = (tint_loop_idx.y + tint_carry); | 
|  | idx = (idx + 1u); | 
|  | } | 
|  | continue; | 
|  | } | 
|  | } | 
|  | threadgroup_barrier(mem_flags::mem_threadgroup); | 
|  | atomic_store_explicit((&(*tint_module_vars.wg)[1u]), 1u, memory_order_relaxed); | 
|  | } | 
|  |  | 
|  | void compute_main_1(tint_module_vars_struct tint_module_vars) { | 
|  | uint const x_47 = (*tint_module_vars.local_invocation_index_1); | 
|  | compute_main_inner(x_47, tint_module_vars); | 
|  | } | 
|  |  | 
|  | void compute_main_inner_1(uint local_invocation_index_1_param, tint_module_vars_struct tint_module_vars) { | 
|  | { | 
|  | uint v = 0u; | 
|  | v = local_invocation_index_1_param; | 
|  | while(true) { | 
|  | uint const v_1 = v; | 
|  | if ((v_1 >= 4u)) { | 
|  | break; | 
|  | } | 
|  | atomic_store_explicit((&(*tint_module_vars.wg)[v_1]), 0u, memory_order_relaxed); | 
|  | { | 
|  | v = (v_1 + 1u); | 
|  | } | 
|  | continue; | 
|  | } | 
|  | } | 
|  | threadgroup_barrier(mem_flags::mem_threadgroup); | 
|  | (*tint_module_vars.local_invocation_index_1) = local_invocation_index_1_param; | 
|  | compute_main_1(tint_module_vars); | 
|  | } | 
|  |  | 
|  | kernel void compute_main(uint local_invocation_index_1_param [[thread_index_in_threadgroup]], threadgroup tint_symbol_1* v_2 [[threadgroup(0)]]) { | 
|  | thread uint local_invocation_index_1 = 0u; | 
|  | tint_module_vars_struct const tint_module_vars = tint_module_vars_struct{.local_invocation_index_1=(&local_invocation_index_1), .wg=(&(*v_2).tint_symbol)}; | 
|  | compute_main_inner_1(local_invocation_index_1_param, tint_module_vars); | 
|  | } |