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 %x "x" 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%uint = OpTypeInt 32 0 16%_ptr_Function_uint = OpTypePointer Function %uint 17%uint_1 = OpConstant %uint 1 18%main = OpFunction %void None %7 19%8 = OpLabel 20%x = OpVariable %_ptr_Function_uint Function 21%14 = OpLoad %uint %x 22%15 = OpIAdd %uint %14 %uint_1 23OpStore %x %15 24%12 = OpSNegate %uint %15 25OpReturn 26OpFunctionEnd 27