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ac7efcb0ca
Updates #57410 Change-Id: Ibe1f5523a4635d2b844b9a5db94514e07eb0bc0f Reviewed-on: https://go-review.googlesource.com/c/go/+/463998 Reviewed-by: Keith Randall <khr@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// errorcheck -0 -m
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// Copyright 2010 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 the escape analysis is working.
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// Compiles but does not run. Inlining is enabled.
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package foo
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var p *int
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func alloc(x int) *int { // ERROR "can inline alloc" "moved to heap: x"
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return &x
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}
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var f func()
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func f1() {
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p = alloc(2) // ERROR "inlining call to alloc" "moved to heap: x"
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// Escape analysis used to miss inlined code in closures.
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func() { // ERROR "can inline f1.func1"
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p = alloc(3) // ERROR "inlining call to alloc"
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}() // ERROR "inlining call to f1.func1" "inlining call to alloc" "moved to heap: x"
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f = func() { // ERROR "func literal escapes to heap" "can inline f1.func2"
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p = alloc(3) // ERROR "inlining call to alloc" "moved to heap: x"
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}
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f()
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}
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func f2() {} // ERROR "can inline f2"
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// No inline for recover; panic now allowed to inline.
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func f3() { panic(1) } // ERROR "can inline f3" "1 escapes to heap"
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func f4() { recover() }
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func f5() *byte { // ERROR "can inline f5"
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type T struct {
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x [1]byte
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}
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t := new(T) // ERROR "new.T. escapes to heap"
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return &t.x[0]
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}
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func f6() *byte { // ERROR "can inline f6"
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type T struct {
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x struct {
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y byte
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}
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}
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t := new(T) // ERROR "new.T. escapes to heap"
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return &t.x.y
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}
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