Symbol: PCB_NEED_UPDATE_FPU
usr/src/uts/i86pc/os/intr.c
1511
if (PCB_NEED_UPDATE_FPU(pcb)) {
usr/src/uts/intel/sys/pcb.h
88
(PCB_NEED_UPDATE_FPU(pcb) || PCB_NEED_UPDATE_SEGS(pcb))