|  | OpCapability Shader | 
|  | %1 = OpExtInstImport "GLSL.std.450" | 
|  | OpMemoryModel Logical GLSL450 | 
|  | OpEntryPoint Fragment %main "main" %sk_FragColor %sk_Clockwise | 
|  | OpExecutionMode %main OriginUpperLeft | 
|  | OpName %testBlock "testBlock" | 
|  | OpMemberName %testBlock 0 "x" | 
|  | OpName %sk_FragColor "sk_FragColor" | 
|  | OpName %sk_Clockwise "sk_Clockwise" | 
|  | OpName %main "main" | 
|  | OpMemberDecorate %testBlock 0 Offset 0 | 
|  | OpDecorate %testBlock Block | 
|  | OpDecorate %3 Binding 456 | 
|  | OpDecorate %3 DescriptorSet 0 | 
|  | OpDecorate %sk_FragColor RelaxedPrecision | 
|  | OpDecorate %sk_FragColor Location 0 | 
|  | OpDecorate %sk_FragColor Index 0 | 
|  | OpDecorate %sk_Clockwise RelaxedPrecision | 
|  | OpDecorate %sk_Clockwise BuiltIn FrontFacing | 
|  | %float = OpTypeFloat 32 | 
|  | %testBlock = OpTypeStruct %float | 
|  | %_ptr_Uniform_testBlock = OpTypePointer Uniform %testBlock | 
|  | %3 = OpVariable %_ptr_Uniform_testBlock Uniform | 
|  | %v4float = OpTypeVector %float 4 | 
|  | %_ptr_Output_v4float = OpTypePointer Output %v4float | 
|  | %sk_FragColor = OpVariable %_ptr_Output_v4float Output | 
|  | %bool = OpTypeBool | 
|  | %_ptr_Input_bool = OpTypePointer Input %bool | 
|  | %sk_Clockwise = OpVariable %_ptr_Input_bool Input | 
|  | %void = OpTypeVoid | 
|  | %14 = OpTypeFunction %void | 
|  | %int = OpTypeInt 32 1 | 
|  | %int_0 = OpConstant %int 0 | 
|  | %_ptr_Uniform_float = OpTypePointer Uniform %float | 
|  | %main = OpFunction %void None %14 | 
|  | %15 = OpLabel | 
|  | %18 = OpAccessChain %_ptr_Uniform_float %3 %int_0 | 
|  | %20 = OpLoad %float %18 | 
|  | %21 = OpCompositeConstruct %v4float %20 %20 %20 %20 | 
|  | OpStore %sk_FragColor %21 | 
|  | OpReturn | 
|  | OpFunctionEnd |