x := make([]int64, 1024)
	y := make([]int64, 1024)
	for i := 0; i < b.N; i++ {
		var s int64
		for i := range x {
			s ^= x[i] + y[i]
		}
		globl = s
	}
}

// Added for ppc64 extswsli on power9
func BenchmarkExtShift(b *testing.B) {
	x := make([]int32, 1024)
	for i := 0; i < b.N; i++ {
		var s int64
		for i := range x {
			s ^= int64(x[i]+32) * 8
		}
		globl = s
	}
}

	"RLDICCC",
	"CLRLSLDI",
	"ROTL",
	"ROTLW",
	"SLBIA",
	"SLBIE",
	"SLBMFEE",
	"SLBMFEV",
	"SLBMTE",
	"SLD",
	"SLDCC",
	"SRD",
	"SRAD",
	"SRADCC",
	"SRDCC",
	"EXTSWSLI",
	"EXTSWSLICC",
	"STDCCC",
	"TD",
	"SETB",
	"DWORD",
	"REMD",
	"REMDU",
	"HRFID",
	"POPCNTD",
	"POPCNTW",
	"POPCNTB",
	"CNTTZW",
	"CNTTZWCC",
	"CNTTZD",
	"CNTTZDCC",

	// ppc64x:"CLRLSLDI"
	i := (v64 & 0xFFFFFFFF) << 5
	// ppc64x:-"CLRLSLDI"
	i += (v64 & 0xFFFFFFF) << 38
	// ppc64x/power9:-"CLRLSLDI"
	i += (v64 & 0xFFFF00) << 10
	// ppc64x/power9:-"SLD","EXTSWSLI"
	j := int64(x32+32) * 8
	return f, g, h, i, j
}

func checkWidenAfterShift(v int64, u uint64) (int64, uint64) {

	// ppc64x:-".*MOVW"
	f := int32(v >> 32)
	// ppc64x:".*MOVW"

	CNTTZWCC:       "cnttzw.",
	COPY:           "copy",
	CPABORT:        "cpabort",
	DARN:           "darn",
	DTSTSFI:        "dtstsfi",
	DTSTSFIQ:       "dtstsfiq",
	EXTSWSLI:       "extswsli",
	EXTSWSLICC:     "extswsli.",
	LDAT:           "ldat",
	LWAT:           "lwat",
	LXSD:           "lxsd",
	LXSIBZX:        "lxsibzx",
	LXSIHZX:        "lxsihzx",
	LXSSP:          "lxssp",

	SRDCC R3, R4                    // 7c841c37
	ROTLW $16, R3, R4               // 5464803e
	ROTLW R3, R4, R5                // 5c85183e
	ROTL $16, R3, R4                // 78648000
	EXTSWSLI $3, R4, R5             // 7c851ef4
	EXTSWSLICC $16, R3, R4          // 7c6486f5
	EXTSB R3, R4                    // 7c640774
	EXTSBCC R3, R4                  // 7c640775
	EXTSH R3, R4                    // 7c640734

		{name: "ROTLWconst", argLength: 1, reg: gp11, asm: "ROTLW", aux: "Int64"}, // uint32(arg0) rotate left by auxInt bits
		{name: "EXTSWSLconst", argLength: 1, reg: gp11, asm: "EXTSWSLI", aux: "Int64"},

		{name: "RLWINM", argLength: 1, reg: gp11, asm: "RLWNM", aux: "Int64"},                           // Rotate and mask by immediate "rlwinm". encodePPC64RotateMask describes aux