               OpCapability Shader
          %5 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main"
               OpExecutionMode %main LocalSize 16 16 1

               ; Debug Information
               OpName %outX "outX"                  ; id %7
               OpName %outY "outY"                  ; id %9
               OpName %outZ "outZ"                  ; id %10
               OpName %main "main"                  ; id %6
               OpName %IndirectDispatchArgs "IndirectDispatchArgs"  ; id %15
               OpMemberName %IndirectDispatchArgs 0 "x"
               OpMemberName %IndirectDispatchArgs 1 "y"
               OpMemberName %IndirectDispatchArgs 2 "z"
               OpName %args "args"                  ; id %14

               ; Annotations
               OpMemberDecorate %IndirectDispatchArgs 0 Offset 0
               OpMemberDecorate %IndirectDispatchArgs 1 Offset 4
               OpMemberDecorate %IndirectDispatchArgs 2 Offset 8

               ; Types, variables and constants
        %int = OpTypeInt 32 1
%_ptr_Input_int = OpTypePointer Input %int
%_ptr_Workgroup_int = OpTypePointer Workgroup %int
       %outX = OpVariable %_ptr_Workgroup_int Workgroup
       %outY = OpVariable %_ptr_Workgroup_int Workgroup
       %outZ = OpVariable %_ptr_Workgroup_int Workgroup
       %void = OpTypeVoid
         %12 = OpTypeFunction %void
%IndirectDispatchArgs = OpTypeStruct %int %int %int
%_ptr_Function_IndirectDispatchArgs = OpTypePointer Function %IndirectDispatchArgs
      %int_1 = OpConstant %int 1
      %int_2 = OpConstant %int 2
      %int_3 = OpConstant %int 3
      %int_0 = OpConstant %int 0
%_ptr_Function_int = OpTypePointer Function %int


               ; Function main
       %main = OpFunction %void None %12

         %13 = OpLabel
       %args =   OpVariable %_ptr_Function_IndirectDispatchArgs Function
         %20 =   OpCompositeConstruct %IndirectDispatchArgs %int_1 %int_2 %int_3
                 OpStore %args %20
         %22 =   OpAccessChain %_ptr_Function_int %args %int_0
         %24 =   OpLoad %int %22
                 OpStore %outX %24
         %25 =   OpAccessChain %_ptr_Function_int %args %int_1
         %26 =   OpLoad %int %25
                 OpStore %outY %26
         %27 =   OpAccessChain %_ptr_Function_int %args %int_2
         %28 =   OpLoad %int %27
                 OpStore %outZ %28
                 OpReturn
               OpFunctionEnd