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629c0b3a6e
Go 1.19 introduce new append-like APIs in package encoding/binary, this change teaches the inliner to treat calls to these methods as cheap, so that code using them will be more inlineable. Updates #42958 Change-Id: Ie3dd4906e285430f435bdedbf8a11fdffce9302d Reviewed-on: https://go-review.googlesource.com/c/go/+/431015 Auto-Submit: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Jenny Rakoczy <jenny@golang.org> Reviewed-by: Jenny Rakoczy <jenny@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Jenny Rakoczy <jenny@golang.org> Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org> Reviewed-by: Keith Randall <khr@google.com>
36 lines
1.6 KiB
Go
36 lines
1.6 KiB
Go
// errorcheckwithauto -0 -m -d=inlfuncswithclosures=1
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//go:build (386 || amd64 || arm64 || ppc64le || s390x) && !gcflags_noopt
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// Copyright 2021 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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// Similar to inline.go, but only for architectures that can merge loads.
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package foo
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import (
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"encoding/binary"
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)
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// Ensure that simple encoding/binary functions are cheap enough
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// that functions using them can also be inlined (issue 42958).
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func endian(b []byte) uint64 { // ERROR "can inline endian" "b does not escape"
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return binary.LittleEndian.Uint64(b) + binary.BigEndian.Uint64(b) // ERROR "inlining call to binary.littleEndian.Uint64" "inlining call to binary.bigEndian.Uint64"
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}
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func appendLittleEndian(b []byte) []byte { // ERROR "can inline appendLittleEndian" "leaking param: b to result ~r0 level=0"
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b = binary.LittleEndian.AppendUint64(b, 64) // ERROR "inlining call to binary.littleEndian.AppendUint64"
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b = binary.LittleEndian.AppendUint32(b, 32) // ERROR "inlining call to binary.littleEndian.AppendUint32"
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b = binary.LittleEndian.AppendUint16(b, 16) // ERROR "inlining call to binary.littleEndian.AppendUint16"
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return b
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}
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func appendBigEndian(b []byte) []byte { // ERROR "can inline appendBigEndian" "leaking param: b to result ~r0 level=0"
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b = binary.BigEndian.AppendUint64(b, 64) // ERROR "inlining call to binary.bigEndian.AppendUint64"
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b = binary.BigEndian.AppendUint32(b, 32) // ERROR "inlining call to binary.bigEndian.AppendUint32"
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b = binary.BigEndian.AppendUint16(b, 16) // ERROR "inlining call to binary.bigEndian.AppendUint16"
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return b
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}
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