traceLockInit()
	// Enforce that this lock is always a leaf lock.
	// All of this lock's critical sections should be
	// extremely short.
	lockInit(&memstats.heapStats.noPLock, lockRankLeafRank)

	// raceinit must be the first call to race detector.
	// In particular, it must be done before mallocinit below calls racemapshadow.
	gp := getg()
	if raceenabled {

	// then this code is dead. Stop here.
	if s.curBlock == nil && n.Op() != ir.OLABEL {
		return
	}

	s.stmtList(n.Init())
	switch n.Op() {

	case ir.OBLOCK:
		n := n.(*ir.BlockStmt)
		s.stmtList(n.List)

	case ir.OFALL: // no-op

	// Expression statements
	case ir.OCALLFUNC:
		n := n.(*ir.CallExpr)
		if ir.IsIntrinsicCall(n) {

1F54B..1F54F  ; valid                  ;      ; NV8    # 8.0  KAABA..BOWL OF HYGIEIA
1F550..1F567  ; valid                  ;      ; NV8    # 6.0  CLOCK FACE ONE OCLOCK..CLOCK FACE TWELVE-THIRTY
1F568..1F579  ; valid                  ;      ; NV8    # 7.0  RIGHT SPEAKER..JOYSTICK
1F57A         ; valid                  ;      ; NV8    # 9.0  MAN DANCING