OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint GLCompute %main "main"
               OpExecutionMode %main LocalSize 16 16 1
               OpName %outX "outX"
               OpName %outY "outY"
               OpName %outZ "outZ"
               OpName %main "main"
               OpName %IndirectDispatchArgs "IndirectDispatchArgs"
               OpMemberName %IndirectDispatchArgs 0 "x"
               OpMemberName %IndirectDispatchArgs 1 "y"
               OpMemberName %IndirectDispatchArgs 2 "z"
               OpName %args "args"
               OpMemberDecorate %IndirectDispatchArgs 0 Offset 0
               OpMemberDecorate %IndirectDispatchArgs 1 Offset 4
               OpMemberDecorate %IndirectDispatchArgs 2 Offset 8
        %int = OpTypeInt 32 1
%_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
          %9 = 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
       %main = OpFunction %void None %9
         %10 = OpLabel
       %args = OpVariable %_ptr_Function_IndirectDispatchArgs Function
         %17 = OpCompositeConstruct %IndirectDispatchArgs %int_1 %int_2 %int_3
               OpStore %args %17
         %19 = OpAccessChain %_ptr_Function_int %args %int_0
         %21 = OpLoad %int %19
               OpStore %outX %21
         %22 = OpAccessChain %_ptr_Function_int %args %int_1
         %23 = OpLoad %int %22
               OpStore %outY %23
         %24 = OpAccessChain %_ptr_Function_int %args %int_2
         %25 = OpLoad %int %24
               OpStore %outZ %25
               OpReturn
               OpFunctionEnd