Source file test/inline_endian.go

     1  // errorcheckwithauto -0 -m -d=inlfuncswithclosures=1
     2  
     3  //go:build (386 || amd64 || arm64 || ppc64le || s390x) && !gcflags_noopt
     4  
     5  // Copyright 2021 The Go Authors. All rights reserved.
     6  // Use of this source code is governed by a BSD-style
     7  // license that can be found in the LICENSE file.
     8  
     9  // Similar to inline.go, but only for architectures that can merge loads.
    10  
    11  package foo
    12  
    13  import (
    14  	"encoding/binary"
    15  )
    16  
    17  // Ensure that simple encoding/binary functions are cheap enough
    18  // that functions using them can also be inlined (issue 42958).
    19  func endian(b []byte) uint64 { // ERROR "can inline endian" "b does not escape"
    20  	return binary.LittleEndian.Uint64(b) + binary.BigEndian.Uint64(b) // ERROR "inlining call to binary.littleEndian.Uint64" "inlining call to binary.bigEndian.Uint64"
    21  }
    22  
    23  func appendLittleEndian(b []byte) []byte { // ERROR "can inline appendLittleEndian" "leaking param: b to result ~r0 level=0"
    24  	b = binary.LittleEndian.AppendUint64(b, 64) // ERROR "inlining call to binary.littleEndian.AppendUint64"
    25  	b = binary.LittleEndian.AppendUint32(b, 32) // ERROR "inlining call to binary.littleEndian.AppendUint32"
    26  	b = binary.LittleEndian.AppendUint16(b, 16) // ERROR "inlining call to binary.littleEndian.AppendUint16"
    27  	return b
    28  }
    29  
    30  func appendBigEndian(b []byte) []byte { // ERROR "can inline appendBigEndian" "leaking param: b to result ~r0 level=0"
    31  	b = binary.BigEndian.AppendUint64(b, 64) // ERROR "inlining call to binary.bigEndian.AppendUint64"
    32  	b = binary.BigEndian.AppendUint32(b, 32) // ERROR "inlining call to binary.bigEndian.AppendUint32"
    33  	b = binary.BigEndian.AppendUint16(b, 16) // ERROR "inlining call to binary.bigEndian.AppendUint16"
    34  	return b
    35  }
    36  

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