"MOVBZ",
	"MOVH",
	"MOVHBR",
	"MOVHZ",
	"MOVW",
	"MOVWZ",
	"MOVD",
	"MOVDBR",
	"MOVDEQ",
	"MOVDGE",
	"MOVDGT",
	"MOVDLE",
	"MOVDLT",
	"MOVDNE",
	"LOCR",
	"LOCGR",
	"FLOGR",
	"POPCNT",
	"AND",
	"ANDW",
	"OR",
	"ORW",
	"XOR",
	"XORW",
	"SLW",
	"SLD",
	"SRW",
	"SRAW",
	"SRD",
	"SRAD",
	"RLL",
	"RLLG",
	"RNSBG",
	"RXSBG",
	"ROSBG",
	"RNSBGT",
	"RXSBGT",

		{Name: "erms", Feature: &X86.HasERMS},
		{Name: "fma", Feature: &X86.HasFMA},
		{Name: "osxsave", Feature: &X86.HasOSXSAVE},
		{Name: "pclmulqdq", Feature: &X86.HasPCLMULQDQ},
		{Name: "popcnt", Feature: &X86.HasPOPCNT},
		{Name: "rdrand", Feature: &X86.HasRDRAND},
		{Name: "rdseed", Feature: &X86.HasRDSEED},
		{Name: "sse3", Feature: &X86.HasSSE3},
		{Name: "sse41", Feature: &X86.HasSSE41},

	MOVB	c+16(FP), AL
	LEAQ	ret+24(FP), R8
	JMP	countbody<>(SB)

// input:
//   SI: data
//   BX: data len
//   AL: byte sought
//   R8: address to put result
// This function requires the POPCNT instruction.
TEXT countbody<>(SB),NOSPLIT,$0
	// Shuffle X0 around so that each byte contains
	// the character we're looking for.
	MOVD AX, X0
	PUNPCKLBW X0, X0
	PUNPCKLBW X0, X0
	PSHUFL $0, X0, X0

	}
	level := getGOAMD64level()
	if level < 2 {
		// These options are required at level 2. At lower levels
		// they can be turned off.
		options = append(options,
			option{Name: "popcnt", Feature: &X86.HasPOPCNT},
			option{Name: "sse3", Feature: &X86.HasSSE3},
			option{Name: "sse41", Feature: &X86.HasSSE41},
			option{Name: "sse42", Feature: &X86.HasSSE42},
			option{Name: "ssse3", Feature: &X86.HasSSSE3})