From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- test/escape_runtime_atomic.go | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 test/escape_runtime_atomic.go (limited to 'test/escape_runtime_atomic.go') diff --git a/test/escape_runtime_atomic.go b/test/escape_runtime_atomic.go new file mode 100644 index 0000000..30d1d0c --- /dev/null +++ b/test/escape_runtime_atomic.go @@ -0,0 +1,33 @@ +// errorcheck -0 -m -l + +// Copyright 2019 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. + +// Test escape analysis for runtime/internal/atomic. + +package escape + +import ( + "runtime/internal/atomic" + "unsafe" +) + +// BAD: should always be "leaking param: addr to result ~r0 level=1$". +func Loadp(addr unsafe.Pointer) unsafe.Pointer { // ERROR "leaking param: addr( to result ~r0 level=1)?$" + return atomic.Loadp(addr) +} + +var ptr unsafe.Pointer + +func Storep() { + var x int // ERROR "moved to heap: x" + atomic.StorepNoWB(unsafe.Pointer(&ptr), unsafe.Pointer(&x)) +} + +func Casp1() { + // BAD: should always be "does not escape" + x := new(int) // ERROR "escapes to heap|does not escape" + var y int // ERROR "moved to heap: y" + atomic.Casp1(&ptr, unsafe.Pointer(x), unsafe.Pointer(&y)) +} -- cgit v1.2.3