| #version 310 es | 
 |  | 
 | struct S_atomic { | 
 |   int x; | 
 |   uint a; | 
 |   uint b; | 
 | }; | 
 |  | 
 | struct S { | 
 |   int x; | 
 |   uint a; | 
 |   uint b; | 
 | }; | 
 |  | 
 | uint local_invocation_index_1 = 0u; | 
 | shared S_atomic wg; | 
 | void compute_main_inner(uint local_invocation_index_2) { | 
 |   wg.x = 0; | 
 |   atomicExchange(wg.a, 0u); | 
 |   atomicExchange(wg.b, 0u); | 
 |   barrier(); | 
 |   atomicExchange(wg.a, 1u); | 
 |   atomicExchange(wg.b, 2u); | 
 |   return; | 
 | } | 
 |  | 
 | void compute_main_1() { | 
 |   uint x_39 = local_invocation_index_1; | 
 |   compute_main_inner(x_39); | 
 |   return; | 
 | } | 
 |  | 
 | void compute_main(uint local_invocation_index_1_param) { | 
 |   { | 
 |     wg.x = 0; | 
 |     atomicExchange(wg.a, 0u); | 
 |     atomicExchange(wg.b, 0u); | 
 |   } | 
 |   barrier(); | 
 |   local_invocation_index_1 = local_invocation_index_1_param; | 
 |   compute_main_1(); | 
 | } | 
 |  | 
 | layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in; | 
 | void main() { | 
 |   compute_main(gl_LocalInvocationIndex); | 
 |   return; | 
 | } |