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e509452727
Change-Id: I7fd9c0636cd00891f5cdf36c0f68f897772042f2 Reviewed-on: https://go-review.googlesource.com/c/go/+/429767 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
// errorcheck -0 -m
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//go:build !nacl && !386 && !wasm && !arm && !gcflags_noopt
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// Copyright 2019 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, using compiler diagnostic flags, that inlining of functions
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// imported from the sync package is working.
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// Compiles but does not run.
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// FIXME: This test is disabled on architectures where atomic operations
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// are function calls rather than intrinsics, since this prevents inlining
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// of the sync fast paths. This test should be re-enabled once the problem
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// is solved.
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package foo
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import (
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"sync"
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)
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var mutex *sync.Mutex
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func small5() { // ERROR "can inline small5"
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// the Unlock fast path should be inlined
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mutex.Unlock() // ERROR "inlining call to sync\.\(\*Mutex\)\.Unlock"
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}
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func small6() { // ERROR "can inline small6"
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// the Lock fast path should be inlined
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mutex.Lock() // ERROR "inlining call to sync\.\(\*Mutex\)\.Lock"
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}
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var once *sync.Once
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func small7() { // ERROR "can inline small7"
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// the Do fast path should be inlined
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once.Do(small5) // ERROR "inlining call to sync\.\(\*Once\)\.Do"
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}
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var rwmutex *sync.RWMutex
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func small8() {
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// the RUnlock fast path should be inlined
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rwmutex.RUnlock() // ERROR "inlining call to sync\.\(\*RWMutex\)\.RUnlock" "inlining call to atomic\.\(\*Int32\)\.Add"
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}
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func small9() {
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// the RLock fast path should be inlined
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rwmutex.RLock() // ERROR "inlining call to sync\.\(\*RWMutex\)\.RLock" "inlining call to atomic\.\(\*Int32\)\.Add"
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}
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