1 // runoutput 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 // Check that {5,6,8,9}g/ggen.c:clearfat is zeroing the entire object. 8 9 package main 10 11 import ( 12 "bytes" 13 "fmt" 14 "strconv" 15 "strings" 16 ) 17 18 const ntest = 1100 19 20 func main() { 21 var decls, calls bytes.Buffer 22 23 for i := 1; i <= ntest; i++ { 24 s := strconv.Itoa(i) 25 decls.WriteString(strings.Replace(decl, "$", s, -1)) 26 calls.WriteString(strings.Replace("poison$()\n\tclearfat$()\n\t", "$", s, -1)) 27 } 28 29 program = strings.Replace(program, "$DECLS", decls.String(), 1) 30 program = strings.Replace(program, "$CALLS", calls.String(), 1) 31 fmt.Print(program) 32 } 33 34 var program = `package main 35 36 var count int 37 38 $DECLS 39 40 func main() { 41 $CALLS 42 if count != 0 { 43 println("failed", count, "case(s)") 44 } 45 } 46 ` 47 48 const decl = ` 49 func poison$() { 50 // Grow and poison the stack space that will be used by clearfat$ 51 var t [2*$]byte 52 for i := range t { 53 t[i] = 0xff 54 } 55 } 56 57 func clearfat$() { 58 var t [$]byte 59 60 for _, x := range t { 61 if x != 0 { 62 // println("clearfat$: index", i, "expected 0, got", x) 63 count++ 64 break 65 } 66 } 67 } 68 ` 69
