xref: /aosp_15_r20/external/skia/tests/sksl/shared/Optimizations.glsl (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17) 
1
2out vec4 sk_FragColor;
3uniform vec4 colorGreen;
4uniform vec4 colorRed;
5bool flatten_compound_constructor_b() {
6    ivec4 x = ivec4(ivec3(ivec2(1, 2), 3), 4);
7    ivec4 y = ivec4(1, ivec3(2, ivec2(3, 4)));
8    return x == y;
9}
10bool flatten_known_if_b() {
11    int value;
12    if (true) {
13        value = 1;
14    } else {
15        value = 2;
16    }
17    return value == 1;
18}
19bool eliminate_empty_if_else_b() {
20    bool check = false;
21    if (check = !check) {
22    } else {
23    }
24    return check;
25}
26bool eliminate_empty_else_b() {
27    bool check = true;
28    if (check) {
29        return true;
30    } else {
31    }
32    return false;
33}
34bool flatten_matching_ternary_b() {
35    bool check = true;
36    return check ? true : true;
37}
38bool flatten_expr_without_side_effects_b() {
39    bool check = true;
40    check;
41    return check;
42}
43bool eliminate_no_op_arithmetic_b() {
44    const int ONE = 1;
45    int a1[1];
46    int a2[1];
47    int x = ONE;
48    x = x + 0;
49    x *= 1;
50    return x == 1;
51}
52bool flatten_switch_b() {
53    switch (1) {
54        case 0:
55            return false;
56        case 1:
57            return true;
58        case 2:
59            return false;
60    }
61    return false;
62}
63vec4 main() {
64    return ((((((flatten_compound_constructor_b() && flatten_known_if_b()) && eliminate_empty_if_else_b()) && eliminate_empty_else_b()) && flatten_matching_ternary_b()) && flatten_expr_without_side_effects_b()) && eliminate_no_op_arithmetic_b()) && flatten_switch_b() ? colorGreen : colorRed;
65}
66