                    OpCapability Shader
               %1 = OpExtInstImport "GLSL.std.450"
                    OpMemoryModel Logical GLSL450
                    OpEntryPoint GLCompute %main "main"
                    OpExecutionMode %main LocalSize 1 1 1
                    OpSource GLSL 450
                    OpName %main "main"
                    OpName %S "S"
                    OpMemberName %S 0 "i"
                    OpName %V "V"
                    OpDecorate %gl_WorkGroupSize BuiltIn WorkgroupSize
            %void = OpTypeVoid
               %3 = OpTypeFunction %void
             %int = OpTypeInt 32 1
               %S = OpTypeStruct %int
  %_ptr_Private_S = OpTypePointer Private %S
               %V = OpVariable %_ptr_Private_S Private
           %int_0 = OpConstant %int 0
           %int_5 = OpConstant %int 5
%_ptr_Private_int = OpTypePointer Private %int
            %uint = OpTypeInt 32 0
          %v3uint = OpTypeVector %uint 3
          %uint_1 = OpConstant %uint 1
%gl_WorkGroupSize = OpConstantComposite %v3uint %uint_1 %uint_1 %uint_1
            %main = OpFunction %void None %3
               %5 = OpLabel
              %13 = OpAccessChain %_ptr_Private_int %V %int_0
                    OpStore %13 %int_5
                    OpReturn
                    OpFunctionEnd