// See the License for the specific language governing permissions and
// limitations under the License.

package slices

import (
	"cmp"
	"fmt"
	"math/rand"
	"reflect"
	"strconv"
	"testing"

	cmp2 "github.com/google/go-cmp/cmp"

	"istio.io/istio/pkg/test/util/assert"
	"istio.io/istio/tests/util/leak"
)

type s struct {
	Junk string
}

func TestEqual(t *testing.T) {

//go:build !purego

// func addMulVVW1024(z *uint, x *uint, y uint) (c uint)
// Requires: ADX, BMI2
TEXT ·addMulVVW1024(SB), $0-32
	CMPB ·supportADX+0(SB), $0x01
	JEQ  adx
	MOVQ z+0(FP), CX
	MOVQ x+8(FP), BX
	MOVQ y+16(FP), SI
	XORQ DI, DI

	// Iteration 0
	MOVQ (BX), AX
	MULQ SI
	ADDQ (CX), AX
	ADCQ $0x00, DX
	ADDQ DI, AX

	ACELFBR
	ACDLFBR
	ACELGBR
	ACDLGBR

	// convert from float/float64 to uint32/uint64
	ACLFEBR
	ACLFDBR
	ACLGEBR
	ACLGDBR

	// compare
	ACMP
	ACMPU
	ACMPW
	ACMPWU

	// test under mask
	ATMHH
	ATMHL
	ATMLH
	ATMLL

	// insert program mask
	AIPM

	// set program mask
	ASPM

	// compare and swap
	ACS
	ACSG

	ACMOVWMI
	ACMOVWNE
	ACMOVWOC
	ACMOVWOS
	ACMOVWPC
	ACMOVWPL
	ACMOVWPS
	ACMPB
	ACMPL
	ACMPPD
	ACMPPS
	ACMPQ
	ACMPSB
	ACMPSD
	ACMPSL
	ACMPSQ
	ACMPSS
	ACMPSW
	ACMPW
	ACMPXCHG16B
	ACMPXCHG8B
	ACMPXCHGB
	ACMPXCHGL
	ACMPXCHGQ
	ACMPXCHGW
	ACOMISD
	ACOMISS
	ACPUID
	ACQO
	ACRC32B
	ACRC32L
	ACRC32Q
	ACRC32W
	ACVTPD2PL
	ACVTPD2PS

// one of the comparison instructions that require special handling.
func IsARM64CMP(op obj.As) bool {
	switch op {
	case arm64.ACMN, arm64.ACMP, arm64.ATST,
		arm64.ACMNW, arm64.ACMPW, arm64.ATSTW,
		arm64.AFCMPS, arm64.AFCMPD,
		arm64.AFCMPES, arm64.AFCMPED:
		return true
	}
	return false
}

// IsARM64STLXR reports whether the op (as defined by an arm64.A*

	AFRIPCC
	AFRIZ
	AFRIZCC
	AFRIN
	AFRINCC
	AFRSQRTE
	AFRSQRTECC
	AFSEL
	AFSELCC
	AFSQRT
	AFSQRTCC
	AFSQRTS
	AFSQRTSCC

	/* 64-bit */

	ACNTLZD
	ACNTLZDCC
	ACMPW /* CMP with L=0 */
	ACMPWU
	ACMPB
	AFTDIV
	AFTSQRT
	ADIVD
	ADIVDCC
	ADIVDE
	ADIVDECC
	ADIVDEU
	ADIVDEUCC
	ADIVDVCC
	ADIVDV
	ADIVDU
	ADIVDUCC
	ADIVDUVCC
	ADIVDUV

				// but not the two instructions that led to them being combined here.  For example
				// (CMPBconstload c (ADDQ x y)) -> (CMPBconstloadidx1 c x y) -> (CMPB c (MOVBloadidx1 x y))
				// The final pair of instructions turns out to be notably faster, at least in some benchmarks.
				f.Config.splitLoad(v)
			}
		}
	}
}

	ORR.P	R2, R3, R4         // ERROR "invalid .P suffix"
	CMP.S	R1, R2	           // ERROR "invalid .S suffix"
	BIC.P	$124, R1, R2       // ERROR "invalid .P suffix"
	MOVW.S	$124, R1           // ERROR "invalid .S suffix"
	MVN.S	$123, g            // ERROR "invalid .S suffix"
	RSB.U	$0, R9             // ERROR "invalid .U suffix"
	CMP.S	$29, g             // ERROR "invalid .S suffix"

	// Clear the upper bits to get to a clean state. See issue #37174.
	// It is safe here as Go code don't use the upper bits of Y registers.
	p("#ifdef GOOS_darwin")
	p("#ifndef hasAVX")
	p("CMPB internal∕cpu·X86+const_offsetX86HasAVX(SB), $0")
	p("JE 2(PC)")
	p("#endif")
	p("VZEROUPPER")
	p("#endif")

	lSSE.save()
	p("CALL ·asyncPreempt2(SB)")
	lSSE.restore()
	l.restore()

	ACBNZ
	ACBNZW
	ACBZ
	ACBZW
	ACCMN
	ACCMNW
	ACCMP
	ACCMPW
	ACINC
	ACINCW
	ACINV
	ACINVW
	ACLREX
	ACLS
	ACLSW
	ACLZ
	ACLZW
	ACMN
	ACMNW
	ACMP
	ACMPW
	ACNEG
	ACNEGW
	ACRC32B
	ACRC32CB
	ACRC32CH
	ACRC32CW
	ACRC32CX
	ACRC32H
	ACRC32W
	ACRC32X
	ACSEL
	ACSELW
	ACSET
	ACSETM
	ACSETMW
	ACSETW
	ACSINC
	ACSINCW