57    if (swiz2->mask.num_components >= 1)  in visit_enter()
58       mask2[0] = swiz2->mask.x;  in visit_enter()
59    if (swiz2->mask.num_components >= 2)  in visit_enter()
60       mask2[1] = swiz2->mask.y;  in visit_enter()
61    if (swiz2->mask.num_components >= 3)  in visit_enter()
62       mask2[2] = swiz2->mask.z;  in visit_enter()
63    if (swiz2->mask.num_components >= 4)  in visit_enter()
64       mask2[3] = swiz2->mask.w;  in visit_enter()
66    if (ir->mask.num_components >= 1)  in visit_enter()
67       ir->mask.x = mask2[ir->mask.x];  in visit_enter()
68    if (ir->mask.num_components >= 2)  in visit_enter()
69       ir->mask.y = mask2[ir->mask.y];  in visit_enter()
70    if (ir->mask.num_components >= 3)  in visit_enter()
71       ir->mask.z = mask2[ir->mask.z];  in visit_enter()
72    if (ir->mask.num_components >= 4)  in visit_enter()
73       ir->mask.w = mask2[ir->mask.w];  in visit_enter()