1 // run 2 3 // Copyright 2017 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 package main 8 9 //go:noinline 10 func f(x int) { 11 } 12 13 //go:noinline 14 func val() int8 { 15 return -1 16 } 17 18 var ( 19 array = [257]int{} 20 slice = array[1:] 21 ) 22 23 func init() { 24 for i := range array { 25 array[i] = i - 1 26 } 27 } 28 29 func main() { 30 x := val() 31 y := int(uint8(x)) 32 f(y) // try and force y to be calculated and spilled 33 if slice[y] != 255 { 34 panic("incorrect value") 35 } 36 } 37
