MDLWP_FPACTIVE
if (md_flags & MDLWP_FPACTIVE) {
if ((curlwp->l_md.md_flags & MDLWP_FPACTIVE) == 0) {
l->l_md.md_flags & (MDLWP_FP_C|MDLWP_FPACTIVE));
if ((curlwp->l_md.md_flags & MDLWP_FPACTIVE) == 0) {
l->l_md.md_flags |= MDLWP_FPACTIVE;
l->l_md.md_flags |= MDLWP_FPACTIVE;
l->l_md.md_flags &= ~MDLWP_FPACTIVE;
(l->l_md.md_flags & ~(MDLWP_FP_C | MDLWP_FPACTIVE)) |
if ((l->l_md.md_flags & MDLWP_FPACTIVE) == 0) {