b := v.Block
	// match: (MOVBUreg x:(FLES _ _))
	// result: x
	for {
		x := v_0
		if x.Op != OpRISCV64FLES {
			break
		}
		v.copyOf(x)
		return true
	}
	// match: (MOVBUreg x:(FLTS _ _))
	// result: x
	for {
		x := v_0
		if x.Op != OpRISCV64FLTS {
			break
		}
		v.copyOf(x)
		return true
	}
	// match: (MOVBUreg x:(FEQS _ _))
	// result: x
	for {

	semacquire(&worldsema)
	gp := getg()
	gp.m.preemptoff = reason.String()
	systemstack(func() {
		// Mark the goroutine which called stopTheWorld preemptible so its
		// stack may be scanned.
		// This lets a mark worker scan us while we try to stop the world
		// since otherwise we could get in a mutual preemption deadlock.
		// We must not modify anything on the G stack because a stack shrink