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55 lines
879 B
55 lines
879 B
4 months ago
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// Copyright 2016 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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package a
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import (
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"unsafe"
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)
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func recurse(i int, s []byte) byte {
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s[0] = byte(i)
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if i == 0 {
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return s[i]
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} else {
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var a [1024]byte
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r := recurse(i-1, a[:])
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return r + a[0]
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}
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}
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//go:uintptrescapes
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func F1(a uintptr) {
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var s [16]byte
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recurse(4096, s[:])
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*(*int)(unsafe.Pointer(a)) = 42
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}
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//go:uintptrescapes
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func F2(a ...uintptr) {
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var s [16]byte
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recurse(4096, s[:])
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*(*int)(unsafe.Pointer(a[0])) = 42
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}
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type t struct{}
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func GetT() *t {
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return &t{}
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}
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//go:uintptrescapes
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func (*t) M1(a uintptr) {
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var s [16]byte
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recurse(4096, s[:])
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*(*int)(unsafe.Pointer(a)) = 42
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}
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//go:uintptrescapes
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func (*t) M2(a ...uintptr) {
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var s [16]byte
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recurse(4096, s[:])
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*(*int)(unsafe.Pointer(a[0])) = 42
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}
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