               OpCapability Shader
          %1 = OpExtInstImport "GLSL.std.450"
               OpMemoryModel Logical GLSL450
               OpEntryPoint Vertex %main "main" %_ %position
               OpSource GLSL 430
               OpName %main "main"
               OpName %gl_PerVertex "gl_PerVertex"
               OpMemberName %gl_PerVertex 0 "gl_Position"
               OpMemberName %gl_PerVertex 1 "gl_PointSize"
               OpMemberName %gl_PerVertex 2 "gl_ClipDistance"
               OpName %_ ""
               OpName %position "position"
               OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
               OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
               OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
               OpDecorate %gl_PerVertex Block
               OpDecorate %position Location 0
       %void = OpTypeVoid
          %7 = OpTypeFunction %void
      %float = OpTypeFloat 32
    %v4float = OpTypeVector %float 4
       %uint = OpTypeInt 32 0
     %uint_1 = OpConstant %uint 1
%_arr_float_uint_1 = OpTypeArray %float %uint_1
%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1
%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
          %_ = OpVariable %_ptr_Output_gl_PerVertex Output
        %int = OpTypeInt 32 1
      %int_0 = OpConstant %int 0
    %v3float = OpTypeVector %float 3
%_ptr_Input_v3float = OpTypePointer Input %v3float
   %position = OpVariable %_ptr_Input_v3float Input
    %float_1 = OpConstant %float 1
%_ptr_Output_v4float = OpTypePointer Output %v4float
       %main = OpFunction %void None %7
         %20 = OpLabel
         %21 = OpLoad %v3float %position
         %22 = OpCompositeExtract %float %21 0
         %23 = OpCompositeExtract %float %21 1
         %24 = OpCompositeExtract %float %21 2
         %25 = OpCompositeConstruct %v4float %22 %23 %24 %float_1
         %26 = OpAccessChain %_ptr_Output_v4float %_ %int_0
               OpStore %26 %25
               OpReturn
               OpFunctionEnd