{"runtime.selectnbsend", 1},
	{"runtime.selectnbrecv", 1},
	{"runtime.selectsetpc", 1},
	{"runtime.selectgo", 1},
	{"runtime.block", 1},
	{"runtime.makeslice", 1},
	{"runtime.makeslice64", 1},
	{"runtime.makeslicecopy", 1},
	{"runtime.growslice", 1},
	{"runtime.unsafeslicecheckptr", 1},
	{"runtime.panicunsafeslicelen", 1},
	{"runtime.panicunsafeslicenilptr", 1},
	{"runtime.unsafestringcheckptr", 1},

	shouldPanic("len out of range", func() { _ = make(T, uint64(n)) })
	shouldPanic("cap out of range", func() { _ = make(T, 0, uint64(n)) })
}

// Test make+copy panics since the gc compiler optimizes these
// to runtime.makeslicecopy calls.
func testMakeCopyInts(n uint64) {
	type T []int
	var c = make(T, 8)
	shouldPanic("len out of range", func() { x := make(T, int(n)); copy(x, c) })

	sink = new(embed3)      // ERROR "can't be allocated in Go"
	sink = new(embedAlias1) // ERROR "can't be allocated in Go"
	sink = new(embedAlias2) // ERROR "can't be allocated in Go"

	// Test for special case of OMAKESLICECOPY
	x := make([]nih, n) // ERROR "can't be allocated in Go"
	copy(x, z)
	z = x
}

// Writes don't produce write barriers.

var p *nih

//go:nowritebarrier
func h() {
	y.next = p.next

// type, and returns an expression that yields the *runtime._type
// value representing that slice type's element type.
func MakeSliceElemRType(pos src.XPos, n *ir.MakeExpr) ir.Node {
	assertOp2(n, ir.OMAKESLICE, ir.OMAKESLICECOPY)
	if hasRType(n, n.RType, "RType") {
		return n.RType
	}
	return sliceElemRType(pos, n.Type())
}

// RangeMapRType asserts that n is a "range" loop over a map value,