// asmcheck -gcflags=-clobberdead

//go:build amd64 || arm64

// Copyright 2021 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

type T [2]*int // contain pointer, not SSA-able (so locals are not registerized)

var p1, p2, p3 T

func F() {
	// 3735936685 is 0xdeaddead. On ARM64 R27 is REGTMP.

// asmcheck -gcflags=-clobberdeadreg

//go:build amd64

// Copyright 2021 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

type S struct {
	a, b, c, d, e, f int
}

func F(a, b, c int, d S) {
	// -2401018187971961171 is 0xdeaddeaddeaddead

// 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
// string types.

func CountRunes(s string) int { // Issue #24923
	// amd64:`.*countrunes`
	return len([]rune(s))
}

func CountBytes(s []byte) int {

// 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"

// Check small copies are replaced with moves.

func movesmall4() {
	x := [...]byte{1, 2, 3, 4}
	// 386:-".*memmove"
	// amd64:-".*memmove"
	// arm:-".*memmove"
	// arm64:-".*memmove"
	// ppc64x:-".*memmove"

// asmcheck

// Copyright 2019 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.

// These tests check code generation of switch statements.

package codegen

// see issue 33934
func f(x string) int {
	// amd64:-`cmpstring`
	switch x {
	case "":
		return -1
	case "1", "2", "3":
		return -2
	default:
		return -3
	}
}

// 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-"

// 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 codegen tests related to arithmetic
// simplifications and optimizations on float types.
// For codegen tests on integer types, see arithmetic.go.

// --------------------- //
//    Strength-reduce    //
// --------------------- //

// asmcheck

// Copyright 2019 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

//go:noinline
func dummy() {}

// Signed 64-bit compare-and-branch.
func si64(x, y chan int64) {
	// s390x:"CGRJ\t[$](2|4), R[0-9]+, R[0-9]+, "
	for <-x < <-y {
		dummy()
	}

	// s390x:"CL?GRJ\t[$]8, R[0-9]+, R[0-9]+, "
	for <-x == <-y {

	}
	return env
}

// asmChecks represents all the asmcheck checks present in a test file
// The outer map key is the build triplet in which the checks must be performed.
// The inner map key represent the source file line ("filename.go:1234") at which the
// checks must be performed.
type asmChecks map[buildEnv]map[string][]wantedAsmOpcode

against a set of regexps to be specified in comments that follow a
special syntax (described below). The test driver is implemented as
an action within the GOROOT/test test suite, called "asmcheck".

The codegen harness is part of the all.bash test suite, but for
performance reasons only the codegen tests for the host machine's
GOARCH are enabled by default, and only on GOOS=linux.