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1baea0ddb3
This is the last failed test in Unified IR, since it can inline f5 and f6 but the old frontend can not. So marking them as //go:noinline, with a TODO for re-enable once GOEXPERIMENT=nounified is gone. Fixes #53058 Change-Id: Ifbbc49c87997a53e1b323048f0067f0257655fad Reviewed-on: https://go-review.googlesource.com/c/go/+/437217 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
63 lines
1.5 KiB
Go
63 lines
1.5 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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// TODO(cuonglm): remove f5, f6 //go:noinline and update the error message
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// once GOEXPERIMENT=nounified is gone.
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//go:noinline
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func f5() *byte {
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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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//go:noinline
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func f6() *byte {
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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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