Gecko [ waterstats.dev.bestseocompanymiami.com ]

Name	Size	Permission
README	5.21 KB	-rw-r--r--
addrcalc.go	324 B	-rw-r--r--
alloc.go	902 B	-rw-r--r--
arithmetic.go	15.2 KB	-rw-r--r--
atomics.go	728 B	-rw-r--r--
bitfield.go	9.64 KB	-rw-r--r--
bits.go	7.83 KB	-rw-r--r--
bmi.go	4.21 KB	-rw-r--r--
bool.go	6.73 KB	-rw-r--r--
clobberdead.go	1.31 KB	-rw-r--r--
clobberdeadreg.go	1.29 KB	-rw-r--r--
compare_and_branch.go	4.5 KB	-rw-r--r--
comparisons.go	15.24 KB	-rw-r--r--
condmove.go	6.24 KB	-rw-r--r--
constants.go	1.11 KB	-rw-r--r--
copy.go	3.14 KB	-rw-r--r--
floats.go	4.89 KB	-rw-r--r--
fuse.go	4.79 KB	-rw-r--r--
ifaces.go	621 B	-rw-r--r--
issue22703.go	5.43 KB	-rw-r--r--
issue25378.go	445 B	-rw-r--r--
issue31618.go	504 B	-rw-r--r--
issue33580.go	459 B	-rw-r--r--
issue38554.go	355 B	-rw-r--r--
issue42610.go	623 B	-rw-r--r--
issue48054.go	464 B	-rw-r--r--
issue52635.go	816 B	-rw-r--r--
issue54467.go	949 B	-rw-r--r--
issue56440.go	689 B	-rw-r--r--
issue58166.go	554 B	-rw-r--r--
issue60324.go	805 B	-rw-r--r--
issue60673.go	360 B	-rw-r--r--
issue61356.go	1.1 KB	-rw-r--r--
issue63332.go	264 B	-rw-r--r--
issue66585.go	336 B	-rw-r--r--
logic.go	1.06 KB	-rw-r--r--
mapaccess.go	9.11 KB	-rw-r--r--
maps.go	3.64 KB	-rw-r--r--
math.go	6.25 KB	-rw-r--r--
mathbits.go	19.6 KB	-rw-r--r--
memcombine.go	29.66 KB	-rw-r--r--
memops.go	12.48 KB	-rw-r--r--
memops_bigoffset.go	2.5 KB	-rw-r--r--
noextend.go	5.39 KB	-rw-r--r--
race.go	651 B	-rw-r--r--
regabi_regalloc.go	494 B	-rw-r--r--
retpoline.go	580 B	-rw-r--r--
rotate.go	5.99 KB	-rw-r--r--
select.go	373 B	-rw-r--r--
shift.go	12.72 KB	-rw-r--r--
shortcircuit.go	368 B	-rw-r--r--
slices.go	9.81 KB	-rw-r--r--
smallintiface.go	500 B	-rw-r--r--
spectre.go	734 B	-rw-r--r--
stack.go	3.36 KB	-rw-r--r--
strings.go	2.4 KB	-rw-r--r--
structs.go	923 B	-rw-r--r--
switch.go	3.6 KB	-rw-r--r--
writebarrier.go	1.5 KB	-rw-r--r--
zerosize.go	650 B	-rw-r--r--

Code Editor : stack.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

import "runtime"

// This file contains code generation tests related to the use of the
// stack.

// Check that stack stores are optimized away.

// 386:"TEXT\t.*, [$]0-"
// amd64:"TEXT\t.*, [$]0-"
// arm:"TEXT\t.*, [$]-4-"
// arm64:"TEXT\t.*, [$]0-"
// mips:"TEXT\t.*, [$]-4-"
// ppc64x:"TEXT\t.*, [$]0-"
// s390x:"TEXT\t.*, [$]0-"
func StackStore() int {
	var x int
	return *(&x)
}

type T struct {
	A, B, C, D int // keep exported fields
	x, y, z    int // reset unexported fields
}

// Check that large structs are cleared directly (issue #24416).

// 386:"TEXT\t.*, [$]0-"
// amd64:"TEXT\t.*, [$]0-"
// arm:"TEXT\t.*, [$]0-" (spills return address)
// arm64:"TEXT\t.*, [$]0-"
// mips:"TEXT\t.*, [$]-4-"
// ppc64x:"TEXT\t.*, [$]0-"
// s390x:"TEXT\t.*, [$]0-"
func ZeroLargeStruct(x *T) {
	t := T{}
	*x = t
}

// Check that structs are partially initialised directly (issue #24386).

// Notes:
// - 386 fails due to spilling a register
// amd64:"TEXT\t.*, [$]0-"
// arm:"TEXT\t.*, [$]0-" (spills return address)
// arm64:"TEXT\t.*, [$]0-"
// ppc64x:"TEXT\t.*, [$]0-"
// s390x:"TEXT\t.*, [$]0-"
// Note: that 386 currently has to spill a register.
func KeepWanted(t *T) {
	*t = T{A: t.A, B: t.B, C: t.C, D: t.D}
}

// Check that small array operations avoid using the stack (issue #15925).

// Notes:
// - 386 fails due to spilling a register
// - arm & mips fail due to softfloat calls
// amd64:"TEXT\t.*, [$]0-"
// arm64:"TEXT\t.*, [$]0-"
// ppc64x:"TEXT\t.*, [$]0-"
// s390x:"TEXT\t.*, [$]0-"
func ArrayAdd64(a, b [4]float64) [4]float64 {
	return [4]float64{a[0] + b[0], a[1] + b[1], a[2] + b[2], a[3] + b[3]}
}

// Check that small array initialization avoids using the stack.

// Check that assembly output has matching offset and base register
// (issue #21064).

func check_asmout(b [2]int) int {
	runtime.GC() // use some frame
	// amd64:`.*b\+24$SP$`
	// arm:`.*b\+4$FP$`
	return b[1]
}

// Check that simple functions get promoted to nosplit, even when
// they might panic in various ways. See issue 31219.
// amd64:"TEXT\t.*NOSPLIT.*"
func MightPanic(a []int, i, j, k, s int) {
	_ = a[i]     // panicIndex
	_ = a[i:j]   // panicSlice
	_ = a[i:j:k] // also panicSlice
	_ = i << s   // panicShift
	_ = i / j    // panicDivide
}

// Put a defer in a loop, so second defer is not open-coded
func Defer() {
	for i := 0; i < 2; i++ {
		defer func() {}()
	}
	// amd64:`CALL\truntime\.deferprocStack`
	defer func() {}()
}

// Check that stack slots are shared among values of the same
// type, but not pointer-identical types. See issue 65783.

func spillSlotReuse() {
	// The return values of getp1 and getp2 need to be
	// spilled around the calls to nopInt. Make sure that
	// spill slot gets reused.

//arm64:`.*autotmp_2-8$SP$`
	getp1()[nopInt()] = 0
	//arm64:`.*autotmp_2-8$SP$`
	getp2()[nopInt()] = 0
}

//go:noinline
func nopInt() int {
	return 0
}

//go:noinline
func getp1() *[4]int {
	return nil
}

//go:noinline
func getp2() *[4]int {
	return nil
}

${this.title}

Code Editor : stack.go