; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 1
; Bound: 37
; 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_e88938 "atomicCompareExchangeWeak_e88938"
               OpMemberName %__atomic_compare_exchange_result_i32 0 "old_value"
               OpMemberName %__atomic_compare_exchange_result_i32 1 "exchanged"
               OpName %__atomic_compare_exchange_result_i32 "__atomic_compare_exchange_result_i32"
               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_i32 0 Offset 0
               OpMemberDecorate %__atomic_compare_exchange_result_i32 1 Offset 4
        %int = OpTypeInt 32 1
%_ptr_Workgroup_int = OpTypePointer Workgroup %int
      %arg_0 = OpVariable %_ptr_Workgroup_int Workgroup
       %uint = OpTypeInt 32 0
%_ptr_Input_uint = OpTypePointer Input %uint
%compute_main_local_invocation_index_Input = OpVariable %_ptr_Input_uint Input
       %void = OpTypeVoid
          %9 = OpTypeFunction %void
     %uint_2 = OpConstant %uint 2
     %uint_0 = OpConstant %uint 0
      %int_1 = OpConstant %int 1
       %bool = OpTypeBool
%__atomic_compare_exchange_result_i32 = OpTypeStruct %int %bool
%_ptr_Function___atomic_compare_exchange_result_i32 = OpTypePointer Function %__atomic_compare_exchange_result_i32
         %23 = OpTypeFunction %void %uint
      %int_0 = OpConstant %int 0
   %uint_264 = OpConstant %uint 264
%atomicCompareExchangeWeak_e88938 = OpFunction %void None %9
         %10 = OpLabel
        %res = OpVariable %_ptr_Function___atomic_compare_exchange_result_i32 Function
         %11 = OpAtomicCompareExchange %int %arg_0 %uint_2 %uint_0 %uint_0 %int_1 %int_1
         %15 = OpIEqual %bool %11 %int_1
         %18 = OpCompositeConstruct %__atomic_compare_exchange_result_i32 %11 %15
               OpStore %res %18
               OpReturn
               OpFunctionEnd
%compute_main_inner = OpFunction %void None %23
%tint_local_index = OpFunctionParameter %uint
         %24 = OpLabel
         %25 = OpIEqual %bool %tint_local_index %uint_0
               OpSelectionMerge %26 None
               OpBranchConditional %25 %27 %26
         %27 = OpLabel
               OpAtomicStore %arg_0 %uint_2 %uint_0 %int_0
               OpBranch %26
         %26 = OpLabel
               OpControlBarrier %uint_2 %uint_2 %uint_264
         %32 = OpFunctionCall %void %atomicCompareExchangeWeak_e88938
               OpReturn
               OpFunctionEnd
%compute_main = OpFunction %void None %9
         %34 = OpLabel
         %35 = OpLoad %uint %compute_main_local_invocation_index_Input None
         %36 = OpFunctionCall %void %compute_main_inner %35
               OpReturn
               OpFunctionEnd