}

// arrayClear constructs a call to runtime.memclr for fast zeroing of slices and arrays.
func arrayClear(wbPos src.XPos, a ir.Node, nrange *ir.RangeStmt) ir.Node {
	elemsize := typecheck.RangeExprType(a.Type()).Elem().Size()
	if elemsize <= 0 {
		return nil
	}

	// Convert to
	// if len(a) != 0 {
	// 	hp = &a[0]
	// 	hn = len(a)*sizeof(elem(a))
	// 	memclr{NoHeap,Has}Pointers(hp, hn)

package typecheck

import (
	"cmd/compile/internal/base"
	"cmd/compile/internal/ir"
	"cmd/compile/internal/types"
	"cmd/internal/src"
	"internal/types/errors"
)

func RangeExprType(t *types.Type) *types.Type {
	if t.IsPtr() && t.Elem().IsArray() {
		return t.Elem()
	}
	return t
}

func typecheckrangeExpr(n *ir.RangeStmt) {
}

// type check assignment.

				fallthrough
			case ir.OSTR2BYTESTMP:
				x.MarkNonNil() // "range []byte(nil)" is fine
			}
		}

		t := o.markTemp()
		n.X = o.expr(n.X, nil)

		orderBody := true
		xt := typecheck.RangeExprType(n.X.Type())
		switch k := xt.Kind(); {
		default:
			base.Fatalf("order.stmt range %v", n.Type())

		case types.IsInt[k]:
			// Used only once, no need to copy.