blob: f76b64ad96ff68833730658c0dede09be0bcb61a [file] [log] [blame]
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import "unsafe"
func init() {
register("CheckPtrAlignmentNoPtr", CheckPtrAlignmentNoPtr)
register("CheckPtrAlignmentPtr", CheckPtrAlignmentPtr)
register("CheckPtrArithmetic", CheckPtrArithmetic)
register("CheckPtrArithmetic2", CheckPtrArithmetic2)
register("CheckPtrSize", CheckPtrSize)
register("CheckPtrSmall", CheckPtrSmall)
register("CheckPtrSliceOK", CheckPtrSliceOK)
register("CheckPtrSliceFail", CheckPtrSliceFail)
}
func CheckPtrAlignmentNoPtr() {
var x [2]int64
p := unsafe.Pointer(&x[0])
sink2 = (*int64)(unsafe.Pointer(uintptr(p) + 1))
}
func CheckPtrAlignmentPtr() {
var x [2]int64
p := unsafe.Pointer(&x[0])
sink2 = (**int64)(unsafe.Pointer(uintptr(p) + 1))
}
func CheckPtrArithmetic() {
var x int
i := uintptr(unsafe.Pointer(&x))
sink2 = (*int)(unsafe.Pointer(i))
}
func CheckPtrArithmetic2() {
var x [2]int64
p := unsafe.Pointer(&x[1])
var one uintptr = 1
sink2 = unsafe.Pointer(uintptr(p) & ^one)
}
func CheckPtrSize() {
p := new(int64)
sink2 = p
sink2 = (*[100]int64)(unsafe.Pointer(p))
}
func CheckPtrSmall() {
sink2 = unsafe.Pointer(uintptr(1))
}
func CheckPtrSliceOK() {
p := new([4]int64)
sink2 = unsafe.Slice(&p[1], 3)
}
func CheckPtrSliceFail() {
p := new(int64)
sink2 = p
sink2 = unsafe.Slice(p, 100)
}