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// Test struct member access with array members on function call returns
// RUN: %{ispc} --target=host --nowrap --nostdlib %s --emit-asm -o - | FileCheck %s --allow-empty
// CHECK-NOT: Error
struct Matrix3x3 {
float data[9];
};
struct Vertex {
float position[3];
float normal[3];
float texCoord[2];
};
Matrix3x3 makeIdentityMatrix() {
Matrix3x3 m;
for (uniform int i = 0; i < 9; i++) {
m.data[i] = (i % 4 == 0) ? 1.0 : 0.0;
}
return m;
}
Vertex makeVertex(float px, float py, float pz, float nx, float ny, float nz, float u, float v) {
Vertex vert;
vert.position[0] = px;
vert.position[1] = py;
vert.position[2] = pz;
vert.normal[0] = nx;
vert.normal[1] = ny;
vert.normal[2] = nz;
vert.texCoord[0] = u;
vert.texCoord[1] = v;
return vert;
}
void test_array_member_access() {
// Test accessing array members from function call returns
float first_element = makeIdentityMatrix().data[0];
float diagonal_element = makeIdentityMatrix().data[4];
float last_element = makeIdentityMatrix().data[8];
}
void test_vertex_array_members() {
// Test accessing different array members
float pos_x = makeVertex(1.0, 2.0, 3.0, 0.0, 1.0, 0.0, 0.5, 0.5).position[0];
float pos_y = makeVertex(4.0, 5.0, 6.0, 0.0, 0.0, 1.0, 0.2, 0.8).position[1];
float pos_z = makeVertex(7.0, 8.0, 9.0, 1.0, 0.0, 0.0, 0.9, 0.1).position[2];
float norm_x = makeVertex(10.0, 11.0, 12.0, 0.707, 0.707, 0.0, 0.0, 1.0).normal[0];
float norm_y = makeVertex(13.0, 14.0, 15.0, 0.0, 0.707, 0.707, 1.0, 0.0).normal[1];
float norm_z = makeVertex(16.0, 17.0, 18.0, 0.707, 0.0, 0.707, 0.3, 0.7).normal[2];
float tex_u = makeVertex(19.0, 20.0, 21.0, -1.0, 0.0, 0.0, 0.25, 0.75).texCoord[0];
float tex_v = makeVertex(22.0, 23.0, 24.0, 0.0, -1.0, 0.0, 0.6, 0.4).texCoord[1];
}
void test_array_in_expressions() {
// Test array member access in arithmetic expressions
float dot_product = makeVertex(1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0).position[0] *
makeVertex(1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0).normal[0] +
makeVertex(0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0).position[1] *
makeVertex(0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0).normal[1] +
makeVertex(0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0).position[2] *
makeVertex(0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0).normal[2];
// Test array indexing with computed indices
float matrix_trace = makeIdentityMatrix().data[0] + makeIdentityMatrix().data[4] + makeIdentityMatrix().data[8];
}
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