; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 1
; Bound: 35
; Schema: 0
               OpCapability Shader
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %compute_main "compute_main" %compute_main_local_invocation_index_Input
               OpExecutionMode %compute_main LocalSize 1 1 1
               OpName %arg_0 "arg_0"
               OpName %compute_main_local_invocation_index_Input "compute_main_local_invocation_index_Input"
               OpName %atomicCompareExchangeWeak_83580d "atomicCompareExchangeWeak_83580d"
               OpMemberName %__atomic_compare_exchange_result_u32 0 "old_value"
               OpMemberName %__atomic_compare_exchange_result_u32 1 "exchanged"
               OpName %__atomic_compare_exchange_result_u32 "__atomic_compare_exchange_result_u32"
               OpName %res "res"
               OpName %compute_main_inner "compute_main_inner"
               OpName %tint_local_index "tint_local_index"
               OpName %compute_main "compute_main"
               OpDecorate %compute_main_local_invocation_index_Input BuiltIn LocalInvocationIndex
               OpMemberDecorate %__atomic_compare_exchange_result_u32 0 Offset 0
               OpMemberDecorate %__atomic_compare_exchange_result_u32 1 Offset 4
       %uint = OpTypeInt 32 0
%_ptr_Workgroup_uint = OpTypePointer Workgroup %uint
      %arg_0 = OpVariable %_ptr_Workgroup_uint Workgroup
%_ptr_Input_uint = OpTypePointer Input %uint
%compute_main_local_invocation_index_Input = OpVariable %_ptr_Input_uint Input
       %void = OpTypeVoid
          %8 = OpTypeFunction %void
     %uint_2 = OpConstant %uint 2
     %uint_0 = OpConstant %uint 0
     %uint_1 = OpConstant %uint 1
       %bool = OpTypeBool
%__atomic_compare_exchange_result_u32 = OpTypeStruct %uint %bool
%_ptr_Function___atomic_compare_exchange_result_u32 = OpTypePointer Function %__atomic_compare_exchange_result_u32
         %22 = OpTypeFunction %void %uint
   %uint_264 = OpConstant %uint 264
%atomicCompareExchangeWeak_83580d = OpFunction %void None %8
          %9 = OpLabel
        %res = OpVariable %_ptr_Function___atomic_compare_exchange_result_u32 Function
         %10 = OpAtomicCompareExchange %uint %arg_0 %uint_2 %uint_0 %uint_0 %uint_1 %uint_1
         %14 = OpIEqual %bool %10 %uint_1
         %17 = OpCompositeConstruct %__atomic_compare_exchange_result_u32 %10 %14
               OpStore %res %17
               OpReturn
               OpFunctionEnd
%compute_main_inner = OpFunction %void None %22
%tint_local_index = OpFunctionParameter %uint
         %23 = OpLabel
         %24 = OpIEqual %bool %tint_local_index %uint_0
               OpSelectionMerge %25 None
               OpBranchConditional %24 %26 %25
         %26 = OpLabel
               OpAtomicStore %arg_0 %uint_2 %uint_0 %uint_0
               OpBranch %25
         %25 = OpLabel
               OpControlBarrier %uint_2 %uint_2 %uint_264
         %30 = OpFunctionCall %void %atomicCompareExchangeWeak_83580d
               OpReturn
               OpFunctionEnd
%compute_main = OpFunction %void None %8
         %32 = OpLabel
         %33 = OpLoad %uint %compute_main_local_invocation_index_Input None
         %34 = OpFunctionCall %void %compute_main_inner %33
               OpReturn
               OpFunctionEnd