; SPIR-V
; Version: 1.3
; Generator: Google Tint Compiler; 0
; Bound: 24
; Schema: 0
               OpCapability Shader
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main"
               OpExecutionMode %main LocalSize 16 1 1
               OpName %a_block "a_block"
               OpMemberName %a_block 0 "inner"
               OpName %a "a"
               OpName %main "main"
               OpName %value "value"
               OpName %__atomic_compare_exchange_resultu32 "__atomic_compare_exchange_resultu32"
               OpMemberName %__atomic_compare_exchange_resultu32 0 "old_value"
               OpMemberName %__atomic_compare_exchange_resultu32 1 "exchanged"
               OpDecorate %a_block Block
               OpMemberDecorate %a_block 0 Offset 0
               OpDecorate %a DescriptorSet 0
               OpDecorate %a Binding 0
               OpMemberDecorate %__atomic_compare_exchange_resultu32 0 Offset 0
               OpMemberDecorate %__atomic_compare_exchange_resultu32 1 Offset 4
       %uint = OpTypeInt 32 0
    %a_block = OpTypeStruct %uint
%_ptr_StorageBuffer_a_block = OpTypePointer StorageBuffer %a_block
          %a = OpVariable %_ptr_StorageBuffer_a_block StorageBuffer
       %void = OpTypeVoid
          %5 = OpTypeFunction %void
    %uint_42 = OpConstant %uint 42
%_ptr_Function_uint = OpTypePointer Function %uint
         %12 = OpConstantNull %uint
       %bool = OpTypeBool
%__atomic_compare_exchange_resultu32 = OpTypeStruct %uint %bool
     %uint_1 = OpConstant %uint 1
     %uint_0 = OpConstant %uint 0
%_ptr_StorageBuffer_uint = OpTypePointer StorageBuffer %uint
       %main = OpFunction %void None %5
          %8 = OpLabel
      %value = OpVariable %_ptr_Function_uint Function %12
               OpStore %value %uint_42
         %20 = OpAccessChain %_ptr_StorageBuffer_uint %a %uint_0
         %21 = OpLoad %uint %value
         %22 = OpAtomicCompareExchange %uint %20 %uint_1 %uint_0 %uint_0 %21 %12
         %23 = OpIEqual %bool %22 %12
         %13 = OpCompositeConstruct %__atomic_compare_exchange_resultu32 %22 %23
               OpReturn
               OpFunctionEnd