; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 1
; Bound: 42
; 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"
               OpName %arg_1 "arg_1"
               OpName %arg_2 "arg_2"
               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
%_ptr_Function_int = OpTypePointer Function %int
      %int_1 = OpConstant %int 1
     %uint_2 = OpConstant %uint 2
     %uint_0 = OpConstant %uint 0
       %bool = OpTypeBool
%__atomic_compare_exchange_result_i32 = OpTypeStruct %int %bool
%_ptr_Function___atomic_compare_exchange_result_i32 = OpTypePointer Function %__atomic_compare_exchange_result_i32
         %28 = OpTypeFunction %void %uint
      %int_0 = OpConstant %int 0
   %uint_264 = OpConstant %uint 264
%atomicCompareExchangeWeak_e88938 = OpFunction %void None %9
         %10 = OpLabel
      %arg_1 = OpVariable %_ptr_Function_int Function
      %arg_2 = OpVariable %_ptr_Function_int Function
        %res = OpVariable %_ptr_Function___atomic_compare_exchange_result_i32 Function
               OpStore %arg_1 %int_1
               OpStore %arg_2 %int_1
         %15 = OpLoad %int %arg_1 None
         %16 = OpLoad %int %arg_2 None
         %17 = OpAtomicCompareExchange %int %arg_0 %uint_2 %uint_0 %uint_0 %16 %15
         %20 = OpIEqual %bool %17 %15
         %23 = OpCompositeConstruct %__atomic_compare_exchange_result_i32 %17 %20
               OpStore %res %23
               OpReturn
               OpFunctionEnd
%compute_main_inner = OpFunction %void None %28
%tint_local_index = OpFunctionParameter %uint
         %29 = OpLabel
         %30 = OpIEqual %bool %tint_local_index %uint_0
               OpSelectionMerge %31 None
               OpBranchConditional %30 %32 %31
         %32 = OpLabel
               OpAtomicStore %arg_0 %uint_2 %uint_0 %int_0
               OpBranch %31
         %31 = OpLabel
               OpControlBarrier %uint_2 %uint_2 %uint_264
         %37 = OpFunctionCall %void %atomicCompareExchangeWeak_e88938
               OpReturn
               OpFunctionEnd
%compute_main = OpFunction %void None %9
         %39 = OpLabel
         %40 = OpLoad %uint %compute_main_local_invocation_index_Input None
         %41 = OpFunctionCall %void %compute_main_inner %40
               OpReturn
               OpFunctionEnd