61    ir_swizzle *swiz = (*rvalue)->as_swizzle();  in handle_rvalue()  local
63    if (!swiz)  in handle_rvalue()
68    while ((swiz2 = swiz->val->as_swizzle()) != NULL) {  in handle_rvalue()
81       if (swiz->mask.num_components >= 1)  in handle_rvalue()
82          swiz->mask.x = mask2[swiz->mask.x];  in handle_rvalue()
83       if (swiz->mask.num_components >= 2)  in handle_rvalue()
84          swiz->mask.y = mask2[swiz->mask.y];  in handle_rvalue()
85       if (swiz->mask.num_components >= 3)  in handle_rvalue()
86          swiz->mask.z = mask2[swiz->mask.z];  in handle_rvalue()
87       if (swiz->mask.num_components >= 4)  in handle_rvalue()
88          swiz->mask.w = mask2[swiz->mask.w];  in handle_rvalue()
90       swiz->val = swiz2->val;  in handle_rvalue()
95    if (swiz->type != swiz->val->type)  in handle_rvalue()
98    int elems = swiz->val->type->vector_elements;  in handle_rvalue()
99    if (swiz->mask.x != 0)  in handle_rvalue()
101    if (elems >= 2 && swiz->mask.y != 1)  in handle_rvalue()
103    if (elems >= 3 && swiz->mask.z != 2)  in handle_rvalue()
105    if (elems >= 4 && swiz->mask.w != 3)  in handle_rvalue()
109    *rvalue = swiz->val;  in handle_rvalue()