//    previous node group and there is an empty line before
				//    the current node
				// => associate comment with previous node group
				assoc = pg
			case p != nil &&
				(pend.Line == r.pos.Line ||
					pend.Line+1 == r.pos.Line && r.end.Line+1 < qpos.Line ||
					q == nil):
				// same rules apply as above for p rather than pg,
				// but also associate with p if we are at the end (q == nil)
				assoc = p

	if p+size > l.end {
		return nil
	}
	l.next = p + size
	if pEnd := alignUp(l.next-1, physPageSize); pEnd > l.mapped {
		if l.mapMemory {
			// Transition from Reserved to Prepared to Ready.
			n := pEnd - l.mapped
			sysMap(unsafe.Pointer(l.mapped), n, sysStat)
			sysUsed(unsafe.Pointer(l.mapped), n, n)
		}
		l.mapped = pEnd
	}
	return unsafe.Pointer(p)
}

	MOVOU	16(SI), X2
	MOVOU	16(DI), X3
	MOVOU	32(SI), X4
	MOVOU	32(DI), X5
	MOVOU	48(SI), X6
	MOVOU	48(DI), X7
	PCMPEQB	X1, X0
	PCMPEQB	X3, X2
	PCMPEQB	X5, X4
	PCMPEQB	X7, X6
	PAND	X2, X0
	PAND	X6, X4
	PAND	X4, X0
	PMOVMSKB X0, DX
	ADDQ	$64, SI
	ADDQ	$64, DI
	SUBQ	$64, BX
	CMPL	DX, $0xffff
	JEQ	hugeloop
	XORQ	AX, AX	// return 0
	RET
#endif

	// 64 bytes at a time using ymm registers

	MOVOU y1in(16*0), X11
	MOVOU y1in(16*1), X12
	MOVOU z1in(16*0), X13
	MOVOU z1in(16*1), X14

	PAND X15, X0
	PAND X15, X1
	PAND X15, X2
	PAND X15, X3
	PAND X15, X4
	PAND X15, X5

	PAND X6, X9
	PAND X6, X10
	PAND X6, X11
	PAND X6, X12
	PAND X6, X13
	PAND X6, X14

	PXOR X9, X0
	PXOR X10, X1
	PXOR X11, X2
	PXOR X12, X3
	PXOR X13, X4
	PXOR X14, X5

	MOVOU	16(SI), X2
	MOVOU	16(DI), X3
	MOVOU	32(SI), X4
	MOVOU	32(DI), X5
	MOVOU	48(SI), X6
	MOVOU	48(DI), X7
	PCMPEQB	X1, X0
	PCMPEQB	X3, X2
	PCMPEQB	X5, X4
	PCMPEQB	X7, X6
	PAND	X2, X0
	PAND	X6, X4
	PAND	X4, X0
	PMOVMSKB X0, DX
	ADDL	$64, SI
	ADDL	$64, DI
	SUBL	$64, BX
	CMPL	DX, $0xffff
	JEQ	hugeloop
	MOVB	$0, (AX)
	RET

	// 4 bytes at a time using 32-bit register
bigloop:

	/* Creates 32 bit mask. Note that we don't care about upper half. */
	PSRLQ       $32, X3

	PSRLDQ      $4, X2
	PAND        X3, X1
	PCLMULQDQ   $0, X0, X1
	PXOR        X2, X1

	MOVOA       rupoly<>+0(SB), X0

	MOVOA       X1, X2
	PAND        X3, X1
	PCLMULQDQ   $0x10, X0, X1
	PAND        X3, X1
	PCLMULQDQ   $0, X0, X1
	PXOR        X2, X1

	PEXTRD	$1, X1, AX
	MOVL        AX, ret+32(FP)

	MOVOU (16*13)(KS), T0
	AESENC T0, B0
	MOVOU (16*14)(KS), T0
initEncLast:
	AESENCLAST T0, B0

	PSHUFB BSWAP, B0
	// H * 2
	PSHUFD $0xff, B0, T0
	MOVOU B0, T1
	PSRAL $31, T0
	PAND POLY, T0
	PSRLL $31, T1
	PSLLDQ $4, T1
	PSLLL $1, B0
	PXOR T0, B0
	PXOR T1, B0
	// Karatsuba pre-computations
	MOVOU B0, (16*14)(dst)
	PSHUFD $78, B0, B1
	PXOR B0, B1
	MOVOU B1, (16*15)(dst)

	"PABSD",
	"PABSW",
	"PACKSSLW",
	"PACKSSWB",
	"PACKUSDW",
	"PACKUSWB",
	"PADDB",
	"PADDL",
	"PADDQ",
	"PADDSB",
	"PADDSW",
	"PADDUSB",
	"PADDUSW",
	"PADDW",
	"PALIGNR",
	"PAND",
	"PANDN",
	"PAUSE",
	"PAVGB",
	"PAVGW",
	"PBLENDVB",
	"PBLENDW",
	"PCLMULQDQ",
	"PCMPEQB",
	"PCMPEQL",
	"PCMPEQQ",
	"PCMPEQW",
	"PCMPESTRI",
	"PCMPESTRM",
	"PCMPGTB",

	DECQ          itr2
	JNE           openSSEPreparePolyKey

	// A0|B0 hold the Poly1305 32-byte key, C0,D0 can be discarded
	PADDL ·chacha20Constants<>(SB), A0; PADDL state1Store, B0

	// Clamp and store the key
	PAND ·polyClampMask<>(SB), A0
	MOVO A0, rStore; MOVO B0, sStore

	// Hash AAD
	MOVQ ad_len+80(FP), itr2
	CALL polyHashADInternal<>(SB)

openSSEMainLoop:
	CMPQ inl, $256
	JB   openSSEMainLoopDone

			"range in textarea",
			"<textarea>{{range .A}}{{.}}{{end}}</textarea>",
			"<textarea>&lt;a&gt;&lt;b&gt;</textarea>",
		},
		{
			"No tag injection",
			`{{"10$"}}<{{"script src,evil.org/pwnd.js"}}...`,
			`10$&lt;script src,evil.org/pwnd.js...`,
		},
		{
			"No comment injection",
			`<{{"!--"}}`,
			`&lt;!--`,
		},
		{
			"No RCDATA end tag injection",
			`<textarea><{{"/textarea "}}...</textarea>`,