1OpCapability Shader 2%1 = OpExtInstImport "GLSL.std.450" 3OpMemoryModel Logical GLSL450 4OpEntryPoint Fragment %main "main" %sk_Clockwise 5OpExecutionMode %main OriginUpperLeft 6OpName %sk_Clockwise "sk_Clockwise" 7OpName %main "main" 8OpName %i "i" 9OpDecorate %sk_Clockwise BuiltIn FrontFacing 10%bool = OpTypeBool 11%_ptr_Input_bool = OpTypePointer Input %bool 12%sk_Clockwise = OpVariable %_ptr_Input_bool Input 13%void = OpTypeVoid 14%7 = OpTypeFunction %void 15%int = OpTypeInt 32 1 16%_ptr_Function_int = OpTypePointer Function %int 17%int_1 = OpConstant %int 1 18%v3int = OpTypeVector %int 3 19%main = OpFunction %void None %7 20%8 = OpLabel 21%i = OpVariable %_ptr_Function_int Function 22%12 = OpLoad %int %i 23%14 = OpISub %int %12 %int_1 24OpStore %i %14 25%15 = OpCompositeConstruct %v3int %12 %12 %12 26OpReturn 27OpFunctionEnd 28