f.Offset = offset
	return f
}

// ifaceData loads the data field from an interface.
// The concrete type must be known to have type t.
// It follows the pointer if !IsDirectIface(t).
func ifaceData(pos src.XPos, n ir.Node, t *types.Type) ir.Node {
	if t.IsInterface() {
		base.Fatalf("ifaceData interface: %v", t)
	}
	ptr := ir.NewUnaryExpr(pos, ir.OIDATA, n)

	v := reflect.ValueOf(x)
	return v.Pointer()
}

func unsafeaddr(x *int) uintptr { // ERROR "leaking param: x$"
	v := reflect.ValueOf(x).Elem()
	return v.UnsafeAddr()
}

func ifacedata(x any) [2]uintptr { // ERROR "moved to heap: x"
	v := reflect.ValueOf(&x).Elem()
	return v.InterfaceData()
}

func can(x int) bool {
	v := reflect.ValueOf(x) // ERROR "x does not escape"

			match := ir.NewBinaryExpr(base.Pos, eq, itabType(tab), rtyp)
			eqtype = ir.NewLogicalExpr(base.Pos, andor, nonnil, match)
		}
		// Check for data equal.
		eqdata := ir.NewBinaryExpr(base.Pos, eq, ifaceData(n.Pos(), l, r.Type()), r)
		// Put it all together.
		expr := ir.NewLogicalExpr(base.Pos, andor, eqtype, eqdata)
		return finishCompare(n, expr, init)
	}

	// Must be comparison of array or struct.

							val = ir.NewBinaryExpr(ncase.Pos(), ir.OMAKEFACE, s.itabName, srcData)
						}
					} else {
						// This case is a concrete type, just read its value out of the interface.
						val = ifaceData(ncase.Pos(), s.srcName, t)
					}
				} else if ncase.List[0].Op() == ir.ODYNAMICTYPE { // single runtime known type
					dt := ncase.List[0].(*ir.DynamicType)

	MOVD	runtime·racearenaend(SB), R0
	CMPUBLT	R3, R0, call			// Before racearena end?
data:
	MOVD	runtime·racedatastart(SB), R0
	CMPUBLT	R3, R0, ret			// Before racedata start?
	MOVD	runtime·racedataend(SB), R0
	CMPUBGE	R3, R0, ret			// At or after racedata end?
call:
	MOVD	g_racectx(g), R2
	JMP	racecall<>(SB)
ret:
	RET

// func runtime·racefuncenter(pc uintptr)
// Called from instrumented code.