mirror of
https://github.com/golang/go
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69 lines
1.1 KiB
Go
69 lines
1.1 KiB
Go
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// runoutput
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// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Check that {5,6,8,9}g/ggen.c:clearfat is zeroing the entire object.
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package main
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import (
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"bytes"
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"fmt"
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"strconv"
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"strings"
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)
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const ntest = 1100
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func main() {
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var decls, calls bytes.Buffer
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for i := 1; i <= ntest; i++ {
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s := strconv.Itoa(i)
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decls.WriteString(strings.Replace(decl, "$", s, -1))
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calls.WriteString(strings.Replace("poison$()\n\tclearfat$()\n\t", "$", s, -1))
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}
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program = strings.Replace(program, "$DECLS", decls.String(), 1)
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program = strings.Replace(program, "$CALLS", calls.String(), 1)
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fmt.Print(program)
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}
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var program = `package main
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var count int
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$DECLS
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func main() {
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$CALLS
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if count != 0 {
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println("failed", count, "case(s)")
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}
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}
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`
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const decl = `
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func poison$() {
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// Grow and poison the stack space that will be used by clearfat$
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var t [2*$]byte
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for i := range t {
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t[i] = 0xff
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}
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}
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func clearfat$() {
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var t [$]byte
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for _, x := range t {
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if x != 0 {
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// println("clearfat$: index", i, "expected 0, got", x)
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count++
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break
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}
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}
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}
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`
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