1 // run 2 3 // Copyright 2014 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 // Issue 8155. 8 // Alignment of stack prologue zeroing was wrong on 64-bit Native Client 9 // (because of 32-bit pointers). 10 11 package main 12 13 import "runtime" 14 15 func bad(b bool) uintptr { 16 var p **int 17 var x1 uintptr 18 x1 = 1 19 if b { 20 var x [11]*int 21 p = &x[0] 22 } 23 if b { 24 var x [1]*int 25 p = &x[0] 26 } 27 runtime.GC() 28 if p != nil { 29 x1 = uintptr(**p) 30 } 31 return x1 32 } 33 34 func poison() uintptr { 35 runtime.GC() 36 var x [20]uintptr 37 var s uintptr 38 for i := range x { 39 x[i] = uintptr(i+1) 40 s += x[i] 41 } 42 return s 43 } 44 45 func main() { 46 poison() 47 bad(false) 48 } 49
