1/*#pragma settings NoInline*/ 2 3uniform half4 colorGreen, colorRed; 4 5half4 dead_fn(half4 a, half4 b) { 6 return a * b; 7} 8 9half4 live_fn(half4 a, half4 b) { 10 return a + b; 11} 12 13half4 main(float2 coords) { 14 const bool TRUE = true, FALSE = false; 15 half4 a, b; 16 17 if (FALSE) { 18 // Dead stripping a user function. 19 half4 unused = dead_fn(half4(0.5), half4(2)); 20 } else { 21 // A live user function. 22 a = live_fn(half4(3), half4(-5)); 23 } 24 25 if (TRUE) { 26 // A live built-in function. 27 b = unpremul(half4(1)); 28 } else { 29 // Dead stripping a built-in function. (This is a separate overload of `unpremul`.) 30 float4 unused = unpremul(float4(-1)); 31 } 32 33 return (a != half4(0) && b != half4(0)) ? colorGreen : colorRed; 34} 35