Gecko [ 167.86.127.34 ]

Name	Size	Permission
README	5.15 KB	-rw-r--r--
alloc.go	902 B	-rw-r--r--
arithmetic.go	10.67 KB	-rw-r--r--
bitfield.go	5.54 KB	-rw-r--r--
bits.go	5.18 KB	-rw-r--r--
compare_and_branch.go	2.81 KB	-rw-r--r--
comparisons.go	5.04 KB	-rw-r--r--
condmove.go	3.14 KB	-rw-r--r--
copy.go	1.72 KB	-rw-r--r--
floats.go	3.06 KB	-rw-r--r--
issue22703.go	5.43 KB	-rw-r--r--
issue25378.go	433 B	-rw-r--r--
issue31618.go	504 B	-rw-r--r--
issue33580.go	459 B	-rw-r--r--
mapaccess.go	9.21 KB	-rw-r--r--
maps.go	2.77 KB	-rw-r--r--
math.go	4.54 KB	-rw-r--r--
mathbits.go	12.75 KB	-rw-r--r--
memcombine.go	22.58 KB	-rw-r--r--
memops.go	1.43 KB	-rw-r--r--
noextend.go	5.57 KB	-rw-r--r--
race.go	581 B	-rw-r--r--
rotate.go	2.51 KB	-rw-r--r--
shift.go	2.62 KB	-rw-r--r--
slices.go	3.36 KB	-rw-r--r--
stack.go	2.96 KB	-rw-r--r--
strings.go	2.03 KB	-rw-r--r--
structs.go	905 B	-rw-r--r--
switch.go	409 B	-rw-r--r--
zerosize.go	537 B	-rw-r--r--

Code Editor : maps.go

// asmcheck

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package codegen

// This file contains code generation tests related to the handling of
// map types.

// ------------------- //
//     Access Const    //
// ------------------- //

// Direct use of constants in fast map access calls (Issue #19015).

func AccessInt1(m map[int]int) int {
	// amd64:"MOVQ\t[$]5"
	return m[5]
}

func AccessInt2(m map[int]int) bool {
	// amd64:"MOVQ\t[$]5"
	_, ok := m[5]
	return ok
}

func AccessString1(m map[string]int) int {
	// amd64:`.*"abc"`
	return m["abc"]
}

func AccessString2(m map[string]int) bool {
	// amd64:`.*"abc"`
	_, ok := m["abc"]
	return ok
}

// ------------------- //
//  String Conversion  //
// ------------------- //

func LookupStringConversionSimple(m map[string]int, bytes []byte) int {
	// amd64:-`.*runtime\.slicebytetostring\(`
	return m[string(bytes)]
}

func LookupStringConversionStructLit(m map[struct{ string }]int, bytes []byte) int {
	// amd64:-`.*runtime\.slicebytetostring\(`
	return m[struct{ string }{string(bytes)}]
}

func LookupStringConversionArrayLit(m map[[2]string]int, bytes []byte) int {
	// amd64:-`.*runtime\.slicebytetostring\(`
	return m[[2]string{string(bytes), string(bytes)}]
}

func LookupStringConversionNestedLit(m map[[1]struct{ s [1]string }]int, bytes []byte) int {
	// amd64:-`.*runtime\.slicebytetostring\(`
	return m[[1]struct{ s [1]string }{struct{ s [1]string }{s: [1]string{string(bytes)}}}]
}

func LookupStringConversionKeyedArrayLit(m map[[2]string]int, bytes []byte) int {
	// amd64:-`.*runtime\.slicebytetostring\(`
	return m[[2]string{0: string(bytes)}]
}

// ------------------- //
//     Map Clear       //
// ------------------- //

// Optimization of map clear idiom (Issue #20138).

func MapClearReflexive(m map[int]int) {
	// amd64:`.*runtime\.mapclear`
	// amd64:-`.*runtime\.mapiterinit`
	for k := range m {
		delete(m, k)
	}
}

func MapClearIndirect(m map[int]int) {
	s := struct{ m map[int]int }{m: m}
	// amd64:`.*runtime\.mapclear`
	// amd64:-`.*runtime\.mapiterinit`
	for k := range s.m {
		delete(s.m, k)
	}
}

func MapClearPointer(m map[*byte]int) {
	// amd64:`.*runtime\.mapclear`
	// amd64:-`.*runtime\.mapiterinit`
	for k := range m {
		delete(m, k)
	}
}

func MapClearNotReflexive(m map[float64]int) {
	// amd64:`.*runtime\.mapiterinit`
	// amd64:-`.*runtime\.mapclear`
	for k := range m {
		delete(m, k)
	}
}

func MapClearInterface(m map[interface{}]int) {
	// amd64:`.*runtime\.mapiterinit`
	// amd64:-`.*runtime\.mapclear`
	for k := range m {
		delete(m, k)
	}
}

func MapClearSideEffect(m map[int]int) int {
	k := 0
	// amd64:`.*runtime\.mapiterinit`
	// amd64:-`.*runtime\.mapclear`
	for k = range m {
		delete(m, k)
	}
	return k
}

${this.title}

Code Editor : maps.go