; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 31
; Schema: 0
               OpCapability Shader
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %compute_main "compute_main" %local_invocation_index_1
               OpExecutionMode %compute_main LocalSize 1 1 1
               OpName %local_invocation_index_1 "local_invocation_index_1"
               OpName %arg_0 "arg_0"
               OpName %atomicAdd_d5db1d "atomicAdd_d5db1d"
               OpName %res "res"
               OpName %compute_main_inner "compute_main_inner"
               OpName %local_invocation_index "local_invocation_index"
               OpName %compute_main "compute_main"
               OpDecorate %local_invocation_index_1 BuiltIn LocalInvocationIndex
       %uint = OpTypeInt 32 0
%_ptr_Input_uint = OpTypePointer Input %uint
%local_invocation_index_1 = OpVariable %_ptr_Input_uint Input
%_ptr_Workgroup_uint = OpTypePointer Workgroup %uint
      %arg_0 = OpVariable %_ptr_Workgroup_uint Workgroup
       %void = OpTypeVoid
          %6 = OpTypeFunction %void
     %uint_2 = OpConstant %uint 2
     %uint_0 = OpConstant %uint 0
     %uint_1 = OpConstant %uint 1
%_ptr_Function_uint = OpTypePointer Function %uint
         %17 = OpConstantNull %uint
         %18 = OpTypeFunction %void %uint
   %uint_264 = OpConstant %uint 264
%atomicAdd_d5db1d = OpFunction %void None %6
          %9 = OpLabel
        %res = OpVariable %_ptr_Function_uint Function %17
         %10 = OpAtomicIDecrement %uint %arg_0 %uint_2 %uint_0
               OpStore %res %10
               OpReturn
               OpFunctionEnd
%compute_main_inner = OpFunction %void None %18
%local_invocation_index = OpFunctionParameter %uint
         %21 = OpLabel
               OpAtomicStore %arg_0 %uint_2 %uint_0 %17
               OpControlBarrier %uint_2 %uint_2 %uint_264
         %26 = OpFunctionCall %void %atomicAdd_d5db1d
               OpReturn
               OpFunctionEnd
%compute_main = OpFunction %void None %6
         %28 = OpLabel
         %30 = OpLoad %uint %local_invocation_index_1
         %29 = OpFunctionCall %void %compute_main_inner %30
               OpReturn
               OpFunctionEnd