| layout(key) in half one; // always equals 1.0 |
| layout(key, when=one != 1.0f) in half unused; // never used |
| layout(key) float alsoUnused = one + one; // also never used |
| |
| half4 main() { |
| half4 color = half4(0); |
| |
| // Basic if statement. (00 == 00: true --> color=0001) |
| if (color.rg == color.ba) color.a = one; |
| |
| // Basic if statement with Block. (00 == 01: false) |
| if (color.rg == color.ba) { |
| color.r = color.a; |
| } |
| |
| // TODO(skia:11872): Add test for If statement with comma-expression statement instead of Block. |
| |
| // Basic if-else statement. (0 == 0: true --> color=1011) |
| if (color.r == color.g) color = color.araa; else color = color.rrra; |
| |
| // Chained if-else statements. |
| if (color.r + color.g + color.b + color.a == one) { // (3 == 1: false) |
| color = half4(-1); |
| } else if (color.r + color.g + color.b + color.a == 2) { // (3 == 2: false) |
| color = half4(-2); |
| } else { |
| color = color.ggaa; // (color=0011) |
| } |
| |
| // Nested if-else statements. |
| if (color.r == one) { // (0 == 1: false) |
| if (color.r == 2) { |
| color = color.rrrr; |
| } else { |
| color = color.gggg; |
| } |
| } else { |
| if (color.b * color.a == one) { // (1*1 == 1: true) |
| color = color.rbga; // (color = 0101) |
| } else { |
| color = color.aaaa; |
| } |
| } |
| |
| @if (one != 1.0) { |
| color.r = 1; |
| } |
| |
| return color; |
| } |