panic(boundsError{x: int64(x), signed: true, y: y, code: boundsSlice3Acap})
}
func goPanicSlice3AcapU(x uint, y int) {
	panicCheck1(getcallerpc(), "slice bounds out of range")
	panic(boundsError{x: int64(x), signed: false, y: y, code: boundsSlice3Acap})
}

// failures in the comparisons for s[:x:y], 0 <= x <= y
func goPanicSlice3B(x int, y int) {

			// type et. See the comment on bulkBarrierPreWrite.
			bulkBarrierPreWriteSrcOnly(uintptr(to), uintptr(from), copymem, et)
		}
	}

	if raceenabled {
		callerpc := getcallerpc()
		pc := abi.FuncPCABIInternal(makeslicecopy)
		racereadrangepc(from, copymem, callerpc, pc)
	}
	if msanenabled {
		msanread(from, copymem)
	}
	if asanenabled {
		asanread(from, copymem)
	}

func publicationBarrier()

// getcallerpc returns the program counter (PC) of its caller's caller.
// getcallersp returns the stack pointer (SP) of its caller's caller.
// The implementation may be a compiler intrinsic; there is not
// necessarily code implementing this on every platform.
//
// For example:
//
//	func f(arg1, arg2, arg3 int) {
//		pc := getcallerpc()
//		sp := getcallersp()
//	}
//

//
//go:linkname reflect_typedmemmove reflect.typedmemmove
func reflect_typedmemmove(typ *_type, dst, src unsafe.Pointer) {
	if raceenabled {
		raceWriteObjectPC(typ, dst, getcallerpc(), abi.FuncPCABIInternal(reflect_typedmemmove))
		raceReadObjectPC(typ, src, getcallerpc(), abi.FuncPCABIInternal(reflect_typedmemmove))
	}
	if msanenabled {
		msanwrite(dst, typ.Size_)
		msanread(src, typ.Size_)
	}
	if asanenabled {

// NOTE: The returned pointer may keep the whole map live, so don't
// hold onto it for very long.
func mapaccess1(t *maptype, h *hmap, key unsafe.Pointer) unsafe.Pointer {
	if raceenabled && h != nil {
		callerpc := getcallerpc()
		pc := abi.FuncPCABIInternal(mapaccess1)
		racereadpc(unsafe.Pointer(h), callerpc, pc)
		raceReadObjectPC(t.Key, key, callerpc, pc)
	}
	if msanenabled && h != nil {
		msanread(key, t.Key.Size_)
	}

		prof.stack[1] = abi.FuncPCABIInternal(_LostContendedRuntimeLock) + sys.PCQuantum
		prof.stack[2] = 0
		return
	}

	var nstk int
	gp := getg()
	sp := getcallersp()
	pc := getcallerpc()
	systemstack(func() {
		var u unwinder
		u.initAt(pc, sp, 0, gp, unwindSilentErrors|unwindJumpStack)
		nstk = 1 + tracebackPCs(&u, skip, prof.stack[1:])
	})
	if nstk < len(prof.stack) {

}

//go:linkname newcoro

// newcoro creates a new coro containing a
// goroutine blocked waiting to run f
// and returns that coro.
func newcoro(f func(*coro)) *coro {
	c := new(coro)
	c.f = f
	pc := getcallerpc()
	gp := getg()
	systemstack(func() {
		mp := gp.m
		start := corostart
		startfv := *(**funcval)(unsafe.Pointer(&start))
		gp = newproc1(startfv, gp, pc, true, waitReasonCoroutine)

// be used as the second word of an interface value.
func convT(t *_type, v unsafe.Pointer) unsafe.Pointer {
	if raceenabled {
		raceReadObjectPC(t, v, getcallerpc(), abi.FuncPCABIInternal(convT))
	}
	if msanenabled {
		msanread(v, t.Size_)
	}
	if asanenabled {
		asanread(v, t.Size_)
	}
	x := mallocgc(t.Size_, t, true)
	typedmemmove(t, x, v)
	return x

	traceback1(pc, sp, lr, gp, 0)
}

// tracebacktrap is like traceback but expects that the PC and SP were obtained
// from a trap, not from gp->sched or gp->syscallpc/gp->syscallsp or getcallerpc/getcallersp.
// Because they are from a trap instead of from a saved pair,
// the initial PC must not be rewound to the previous instruction.
// (All the saved pairs record a PC that is a return address, so we

		// the stack, but put it in gp.stack before mstart,
		// so the logic above hasn't set osStack yet.
		osStack = true
	}
	mexit(osStack)
}

// The go:noinline is to guarantee the getcallerpc/getcallersp below are safe,
// so that we can set up g0.sched to return to the call of mstart1 above.
//
//go:noinline
func mstart1() {
	gp := getg()

	if gp != gp.m.g0 {