1 OpCapability Shader 2 %1 = OpExtInstImport "GLSL.std.450" 3 OpMemoryModel Logical GLSL450 4 OpEntryPoint Vertex %main "main" %sk_InstanceID %id 5 OpName %sk_InstanceID "sk_InstanceID" 6 OpName %id "id" 7 OpName %main "main" 8 OpDecorate %sk_InstanceID BuiltIn InstanceIndex 9 OpDecorate %id Location 1 10 %int = OpTypeInt 32 1 11%_ptr_Input_int = OpTypePointer Input %int 12%sk_InstanceID = OpVariable %_ptr_Input_int Input 13%_ptr_Output_int = OpTypePointer Output %int 14 %id = OpVariable %_ptr_Output_int Output 15 %void = OpTypeVoid 16 %9 = OpTypeFunction %void 17 %main = OpFunction %void None %9 18 %10 = OpLabel 19 %11 = OpLoad %int %sk_InstanceID 20 OpStore %id %11 21 OpReturn 22 OpFunctionEnd 23