b.Run(" 00|X0 ", func(b *testing.B) { benchmarkErasureEncode(2, 2, 0, 1, size, b) })
	b.Run(" X0|00 ", func(b *testing.B) { benchmarkErasureEncode(2, 2, 1, 0, size, b) })
}

func BenchmarkErasureEncode_4_64KB(b *testing.B) {
	const size = 64 * 1024
	b.Run(" 00|00 ", func(b *testing.B) { benchmarkErasureEncode(2, 2, 0, 0, size, b) })

	RET
TEXT ·a28(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	PEXTRD $0, X0, R15
	ADDQ $1, R15
	RET
TEXT ·a29(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	VPEXTRD $0, X0, R15
	ADDQ $1, R15
	RET
TEXT ·a30(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0

// license that can be found in the LICENSE file.

TEXT errors(SB),$0
	CSRRC	(X10), CYCLE, X5		// ERROR "integer register or immediate expected for 1st operand"
	CSRRC	X0, TU, X5			// ERROR "unknown CSR"
	CSRRC	X0, CYCLE			// ERROR "missing CSR name"
	CSRRC	X0, CYCLE, (X10)		// ERROR "needs an integer register output"
	CSRRC	$-1, TIME, X15			// ERROR "immediate out of range 0 to 31"
	CSRRCI	$32, TIME, X15			// ERROR "immediate out of range 0 to 31"

      h ^= fingerprint(buf, bufLen);
      h = remix(h);
      buf[bufLen++] = getChar(h);

      int x0 = buf[bufLen - 1] & 0xff;
      int x1 = buf[bufLen - 2] & 0xff;
      int x2 = buf[bufLen - 3] & 0xff;
      int x3 = buf[bufLen / 2] & 0xff;
      buf[((x0 << 16) + (x1 << 8) + x2) % bufLen] ^= x3;
      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }

			"#define LOAD(off, reg) \\",
			"\tMOVBLZX	(off*4)(R12),	reg \\",
			"\tADDB	reg,		DX",
			"KEYROUND(X0, LOAD, 8, AX, BX, 0)",
		),
		"\n.MOVBLZX.(.BP.).(.DX.*.4.).,.R8.\n.\n.MOVBLZX.(.(.8.+.1.).*.4.).(.R12.).,.BX.\n.ADDB.BX.,.DX.\n.MOVB.R8.,.(.8.*.4.).(.R12.).\n.PINSRW.$.0.,.(.BP.).(.R8.*.4.).,.X0.\n",
	},
	{
		"taken #ifdef",
		lines(
			"#define A",
			"#ifdef A",
			"#define B 1234",
			"#endif",

func ARMMRCOffset(op obj.As, cond string, x0, x1, x2, x3, x4, x5 int64) (offset int64, op0 obj.As, ok bool) {
	op1 := int64(0)
	if op == arm.AMRC {
		op1 = 1
	}
	bits, ok := ParseARMCondition(cond)
	if !ok {
		return
	}
	offset = (0xe << 24) | // opcode
		(op1 << 20) | // MCR/MRC
		((int64(bits) ^ arm.C_SCOND_XOR) << 28) | // scond
		((x0 & 15) << 8) | //coprocessor number

	private    *int
	PublicTime Time
}

// Deprecated: use URI.
type URL struct{}

type EmbedURLPtr struct {
	*URL
}

type S2 struct {
	// Deprecated: use T.
	S
	Extra bool
}

var X0 int64

var (
	Y int
	X I
)

type Namer interface {
	Name() string
}

type I interface {
	Namer
	ptwo.Twoer
	Set(name string, balance int64)
	// Deprecated: use GetNamed.

	// 7.1: CSR Instructions
	CSRRC	X0, CYCLE, X5				// f33200c0
	CSRRC	X0, CYCLE, X0				// 733000c0
	CSRRC	X10, CYCLE, X5				// f33205c0
	CSRRC	$2, TIME, X5				// f37211c0
	CSRRCI	$2, TIME, X5				// f37211c0
	CSRRS	X0, CYCLE, X5				// f32200c0
	CSRRS	X0, CYCLE, X0				// 732000c0
	CSRRS	X10, CYCLE, X5				// f32205c0
	CSRRS	$2, TIME, X5				// f36211c0
	CSRRS	X0, VLENB, X5				// f32220c2

pkg p1, var SIVal SI
pkg p1, var StrConv string
pkg p1, var V string
pkg p1, var V1 uint64
pkg p1, var V2 p2.Twoer
pkg p1, var VError //deprecated
pkg p1, var VError Error
pkg p1, var X I
pkg p1, var X0 int64

	VMOVQ		-12(R4), V2.W4	// 82f42f30
	VMOVQ		(R4), V3.V2	// 83001030
	VMOVQ		24(R4), V3.V2	// 830c1030
	VMOVQ		-16(R4), V3.V2	// 83f81730
	XVMOVQ		(R4), X0.B32	// 80008032
	XVMOVQ		1(R4), X0.B32	// 80048032
	XVMOVQ		-5(R4), X0.B32	// 80ecbf32
	XVMOVQ		(R4), X1.H16	// 81004032
	XVMOVQ		2(R4), X1.H16	// 81044032
	XVMOVQ		-10(R4), X1.H16	// 81ec5f32
	XVMOVQ		(R4), X2.W8	// 82002032