v_1 := v.Args[1]
	v_0 := v.Args[0]
	b := v.Block
	typ := &b.Func.Config.Types
	// match: (Add64 x y)
	// result: (Int64Make (Add32withcarry <typ.Int32> (Int64Hi x) (Int64Hi y) (Select1 <types.TypeFlags> (Add32carry (Int64Lo x) (Int64Lo y)))) (Select0 <typ.UInt32> (Add32carry (Int64Lo x) (Int64Lo y))))
	for {
		x := v_0
		y := v_1
		v.reset(OpInt64Make)
		v0 := b.NewValue0(v.Pos, OpAdd32withcarry, typ.Int32)

(SelectN [0] (MakeResult x ___)) => x
(SelectN [1] (MakeResult x y ___)) => y
(SelectN [2] (MakeResult x y z ___)) => z

// for late-expanded calls, recognize newobject and remove zeroing and nilchecks
(Zero (SelectN [0] call:(StaticLECall _ _)) mem:(SelectN [1] call))
	&& isSameCall(call.Aux, "runtime.newobject")
	=> mem

		return true
	}
	// match: (MOVBUreg x:(Select0 (LoweredAtomicLoad8 _ _)))
	// result: (MOVDreg x)
	for {
		x := v_0
		if x.Op != OpSelect0 {
			break
		}
		x_0 := x.Args[0]
		if x_0.Op != OpRISCV64LoweredAtomicLoad8 {
			break
		}
		v.reset(OpRISCV64MOVDreg)
		v.AddArg(x)
		return true
	}
	// match: (MOVBUreg x:(Select0 (LoweredAtomicCas32 _ _ _ _)))
	// result: (MOVDreg x)

	}
	// match: (Move [64] dst src mem)
	// result: (STP [48] dst (Select0 <typ.UInt64> (LDP [48] src mem)) (Select1 <typ.UInt64> (LDP [48] src mem)) (STP [32] dst (Select0 <typ.UInt64> (LDP [32] src mem)) (Select1 <typ.UInt64> (LDP [32] src mem)) (STP [16] dst (Select0 <typ.UInt64> (LDP [16] src mem)) (Select1 <typ.UInt64> (LDP [16] src mem)) (STP dst (Select0 <typ.UInt64> (LDP src mem)) (Select1 <typ.UInt64> (LDP src mem)) mem))))
	for {

	// pseudo-ops for breaking Tuple
	{name: "Select0", argLength: 1, zeroWidth: true},  // the first component of a tuple
	{name: "Select1", argLength: 1, zeroWidth: true},  // the second component of a tuple
	{name: "SelectN", argLength: 1, aux: "Int64"},     // arg0=result, auxint=field index.  Returns the auxint'th member.

	testBlock(always, func() {
		ch := make(chan int)
		<-ch
	})

	// empty selects always block
	testBlock(always, func() {
		select {}
	})

	// selects with only nil channels always block
	testBlock(always, func() {
		select {
		case <-nilch:
			unreachable()
		}
	})
	testBlock(always, func() {
		select {
		case nilch <- 7:
			unreachable()
		}
	})
	testBlock(always, func() {

	c <- 1
	select {
	default:
	case <-c:
		if a("1")("2")("3"); log != "a(1)a(2)a(3)" {
			println("in select4, expecting a(1)a(2)a(3) , got ", log)
			err++
		}
		log = ""

		if t.a("1").a(t.b("2")); log != "a(1)b(2)a(2)" {
			println("in select4, expecting a(1)b(2)a(2), got ", log)
			err++
		}
		log = ""
		if a("3")(b("4"))(b("5")); log != "a(3)b(4)a(4)b(5)a(5)" {

	order = 0
	c <- n
	{{if .Maybe}}
	{{/*  Outside of select, left-to-right rule applies. */}}
	{{/*  (Inside select, assignment waits until case is chosen, */}}
	{{/*  so right hand side happens before anything on left hand side. */}}
	*fp(&x, 1) = <-fc(c, 2)
	{{else}}{{if .Maybe}}
	m[fn(13, 1)] = <-fc(c, 2)
	x = m[13]
	{{else}}
	select {
	{{/*  Blocking or non-blocking, before the receive. */}}

// Test break statements in a select.
// Gccgo had a bug in handling this.
// Test 1,2,3-case selects, so it covers both the general
// code path and the specialized optimizations for one-
// and two-case selects.

package main

var ch = make(chan int)

func main() {
	go func() {
		for {
			ch <- 5
		}
	}()

	select {
	case <-ch:
		break
		panic("unreachable")
	}

// license that can be found in the LICENSE file.

// Test that selects do not consume undue memory.

package main

import "runtime"

func sender(c chan int, n int) {
	for i := 0; i < n; i++ {
		c <- 1
	}
}

func receiver(c, dummy chan int, n int) {
	for i := 0; i < n; i++ {
		select {
		case <-c:
			// nothing
		case <-dummy:
			panic("dummy")
		}
	}
}