yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Jay KwakConstant-fold for the type-casting in switch-case labels (#5436)1487a1f98

master
branchesmasterall refs →
1.1 KiB45 linesraw
1//TEST:SIMPLE(filecheck=SPV): -allow-glsl -target spirv-asm -entry vertexMain -stage vertex
2
3// This test is to make sure the constant-folding works for the switch-case label.
4// The shader code is from VK-CTS but modified,
5//   dEQP-VK.glsl.switch.const_expr_in_label_dynamic_fragment
6
7layout(location = 0) in highp vec4 a_position;
8layout(location = 1) in highp vec4 a_coords;
9
10layout(location = 0) out mediump vec4 v_color;
11layout (std140, set=0, binding=0) uniform buffer0 { highp int ui_two; };
12
13void vertexMain(void)
14{
15    gl_Position = a_position;
16    highp vec4 coords = a_coords;
17    mediump vec3 res = vec3(0.0);
18
19    const int t = 2;
20    switch (ui_two)
21    {
22        //SPV-NOT:([[# @LINE+1]]): error
23        case int(0.0):
24            res = coords.xyz;
25            break;
26
27        //SPV-NOT:([[# @LINE+1]]): error
28        case 2-1:
29            res = coords.wzy;
30            break;
31
32        //SPV-NOT:([[# @LINE+1]]): error
33        case 3&(1<<1):
34            res = coords.yzw;
35            break;
36
37        //SPV-NOT:([[# @LINE+1]]): error
38        case t+1:
39            res = coords.zyx;
40            break;
41    }
42
43    v_color = vec4(res, 1.0);
44}
45