Only remove load IDs of variables actually assigned in a loop

[libs/gl.git] / tests / glsl / use_parameter_in_loop.glsl

diff --git a/tests/glsl/use_parameter_in_loop.glsl b/tests/glsl/use_parameter_in_loop.glsl
new file mode 100644 (file)
index 0000000..a0bbc5c
--- /dev/null
+++ b/tests/glsl/use_parameter_in_loop.glsl
@@ -0,0 +1,67 @@
+uniform Lighting
+{
+       vec3 light_dir[3];
+};
+uniform mat4 model_matrix;
+uniform mat4 view_matrix;
+uniform mat4 proj_matrix;
+
+#pragma MSP stage(vertex)
+layout(location=0) in vec4 vertex;
+void main()
+{
+       out vec4 world_vertex = model_matrix*vertex;
+       vec3 eye_pos = inverse(view_matrix)[3].xyz;
+       out vec3 world_look_dir = normalize(world_vertex.xyz-eye_pos);
+       gl_Position = proj_matrix*view_matrix*world_vertex;
+}
+
+#pragma MSP stage(fragment)
+layout(location=0) out vec4 frag_color;
+float calculate_lighting(vec3 look_dir)
+{
+       float intensity = 0.0;
+       for(int i=0; i<3; ++i)
+               intensity += max(dot(look_dir, light_dir[i]), 0.0);
+       return intensity;
+}
+void main()
+{
+       float light_intensity = calculate_lighting(world_look_dir);
+       frag_color = vec4(vec3(light_intensity), 1.0);
+}
+
+/* Expected output: vertex
+layout(location=0) uniform mat4 model_matrix;
+layout(location=4) uniform mat4 view_matrix;
+layout(location=8) uniform mat4 proj_matrix;
+layout(location=0) in vec4 vertex;
+layout(location=0) out vec4 world_vertex;
+layout(location=1) out vec3 world_look_dir;
+void main()
+{
+       world_vertex = model_matrix*vertex;
+       world_look_dir = normalize(world_vertex.xyz-inverse(view_matrix)[3].xyz);
+       gl_Position = proj_matrix*view_matrix*world_vertex;
+}
+*/
+
+/* Expected output: fragment
+layout(binding=5) uniform Lighting
+{
+       vec3 light_dir[3];
+};
+layout(location=0) out vec4 frag_color;
+float calculate_lighting(vec3 look_dir)
+{
+       float intensity = 0.0;
+       for(int i = 0; i<3; ++i)
+               intensity += max(dot(look_dir, light_dir[i]), 0.0);
+       return intensity;
+}
+layout(location=1) in vec3 world_look_dir;
+void main()
+{
+       frag_color = vec4(vec3(calculate_lighting(world_look_dir)), 1.0);
+}
+*/