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41 lines
1.1 KiB
41 lines
1.1 KiB
4 months ago
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// errorcheck -0 -m -live
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// +build !windows,!js
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// Copyright 2015 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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// Test escape analysis and liveness inferred for syscall.Syscall-like functions.
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package p
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import (
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"syscall"
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"unsafe"
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)
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func f(uintptr) // ERROR "assuming arg#1 is unsafe uintptr"
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func g() { // ERROR "can inline g"
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var t int
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f(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to f: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
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}
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func h() { // ERROR "can inline h"
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var v int
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syscall.Syscall(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to Syscall: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
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}
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func i() { // ERROR "can inline i"
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var t int
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p := unsafe.Pointer(&t)
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f(uintptr(p)) // ERROR "live at call to f: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
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}
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func j() { // ERROR "can inline j"
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var v int
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p := unsafe.Pointer(&v)
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syscall.Syscall(0, 1, uintptr(p), 2) // ERROR "live at call to Syscall: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
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}
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