; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 39
; 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 %atomicCompareExchangeWeak_89ea3b "atomicCompareExchangeWeak_89ea3b"
               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
        %int = OpTypeInt 32 1
%_ptr_Workgroup_int = OpTypePointer Workgroup %int
      %arg_0 = OpVariable %_ptr_Workgroup_int Workgroup
       %void = OpTypeVoid
          %7 = OpTypeFunction %void
      %v2int = OpTypeVector %int 2
     %uint_2 = OpConstant %uint 2
     %uint_0 = OpConstant %uint 0
      %int_1 = OpConstant %int 1
       %bool = OpTypeBool
      %int_0 = OpConstant %int 0
%_ptr_Function_v2int = OpTypePointer Function %v2int
         %24 = OpConstantNull %v2int
         %25 = OpTypeFunction %void %uint
         %31 = OpConstantNull %int
   %uint_264 = OpConstant %uint 264
%atomicCompareExchangeWeak_89ea3b = OpFunction %void None %7
         %10 = OpLabel
        %res = OpVariable %_ptr_Function_v2int Function %24
         %18 = OpAtomicCompareExchange %int %arg_0 %uint_2 %uint_0 %uint_0 %int_1 %int_1
         %19 = OpIEqual %bool %18 %int_1
         %21 = OpSelect %int %19 %int_1 %int_0
         %11 = OpCompositeConstruct %v2int %18 %21
               OpStore %res %11
               OpReturn
               OpFunctionEnd
%compute_main_inner = OpFunction %void None %25
%local_invocation_index = OpFunctionParameter %uint
         %28 = OpLabel
               OpAtomicStore %arg_0 %uint_2 %uint_0 %31
               OpControlBarrier %uint_2 %uint_2 %uint_264
         %34 = OpFunctionCall %void %atomicCompareExchangeWeak_89ea3b
               OpReturn
               OpFunctionEnd
%compute_main = OpFunction %void None %7
         %36 = OpLabel
         %38 = OpLoad %uint %local_invocation_index_1
         %37 = OpFunctionCall %void %compute_main_inner %38
               OpReturn
               OpFunctionEnd