// Keep in sync with crypto/aes/cipher_s390x.go.
	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)

	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
		runtime.GOARCH == "s390x" && hasGCMAsmS390X
)

var aesgcmCiphers = map[uint16]bool{
	// TLS 1.2

	_        CacheLinePad
}

// S390X contains the supported CPU features of the current IBM Z
// (s390x) platform. If the current platform is not IBM Z then all
// feature flags are false.
//
// S390X is padded to avoid false sharing. Further HasVX is only set
// if the OS supports vector registers in addition to the STFLE
// feature bit being set.
var S390X struct {
	_         CacheLinePad

.file "gcc_s390x.S"

/*
 * void crosscall_s390x(void (*fn)(void), void *g)
 *
 * Calling into the go tool chain, where all registers are caller save.
 * Called from standard s390x C ABI, where r6-r13, r15, and f8-f15 are
 * callee-save, so they must be saved explicitly.
 */
.globl crosscall_s390x
crosscall_s390x:
	/* save r6-r15 in the register save area of the calling function */

// errorcheckwithauto -0 -m -d=inlfuncswithclosures=1

//go:build (386 || amd64 || arm64 || ppc64le || s390x) && !gcflags_noopt

// 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.

// Similar to inline.go, but only for architectures that can merge loads.

package foo

import (
	"encoding/binary"
)

// Platforms that have fast unaligned 32-bit little endian accesses.
const unaligned = runtime.GOARCH == "386" ||
	runtime.GOARCH == "amd64" ||
	runtime.GOARCH == "arm64" ||
	runtime.GOARCH == "ppc64le" ||
	runtime.GOARCH == "s390x"

// addXor reads a little endian uint32 from src, XORs it with (a + b) and
// places the result in little endian byte order in dst.
func addXor(dst, src []byte, a, b uint32) {

// Code generated by stringer -i a.out.go -o anames.go -p s390x; DO NOT EDIT.

package s390x

import "cmd/internal/obj"

var Anames = []string{
	obj.A_ARCHSPECIFIC: "ADD",
	"ADDC",
	"ADDE",
	"ADDW",
	"DIVW",
	"DIVWU",
	"DIVD",
	"DIVDU",
	"MODW",
	"MODWU",
	"MODD",
	"MODDU",
	"MULLW",
	"MULLD",
	"MULHD",
	"MULHDU",
	"MLGR",
	"SUB",
	"SUBC",
	"SUBV",
	"SUBE",
	"SUBW",
	"NEG",

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Make sure floating point operations that generate flags
// are scheduled correctly on s390x.

package p

func f1(x, y float64, z int) float64 {
	a := x + y  // generate flags
	if z == 0 { // create basic block that does not clobber flags
		return a
	}
	if a > 0 { // use flags in different basic block

// cgo -godefs -objdir=/tmp/s390x/cgo -- -Wall -Werror -static -I/tmp/s390x/include -fsigned-char linux/types.go | go run mkpost.go
// Code generated by the command above; see README.md. DO NOT EDIT.

//go:build s390x && linux

package unix

const (
	SizeofPtr  = 0x8
	SizeofLong = 0x8
)

type (
	_C_long int64
)

type Timespec struct {
	Sec  int64
	Nsec int64
}

type Timeval struct {
	Sec  int64
	Usec int64

				gohostarch = "mipsle"
			}
		case strings.Contains(out, "loongarch64"):
			gohostarch = "loong64"
		case strings.Contains(out, "riscv64"):
			gohostarch = "riscv64"
		case strings.Contains(out, "s390x"):
			gohostarch = "s390x"
		case gohostos == "darwin", gohostos == "ios":
			if strings.Contains(run("", CheckExit, "uname", "-v"), "RELEASE_ARM64_") {
				gohostarch = "arm64"
			}
		case gohostos == "freebsd":

)

const wordSize = unsafe.Sizeof(uintptr(0))

const supportsUnaligned = runtime.GOARCH == "386" ||
	runtime.GOARCH == "amd64" ||
	runtime.GOARCH == "ppc64" ||
	runtime.GOARCH == "ppc64le" ||
	runtime.GOARCH == "s390x"

func xorBytes(dstb, xb, yb *byte, n int) {
	// xorBytes assembly is written using pointers and n. Back to slices.
	dst := unsafe.Slice(dstb, n)
	x := unsafe.Slice(xb, n)
	y := unsafe.Slice(yb, n)