MOVD    $·byteswapcons(SB),R3
	LVX	(R3),byteswap
#endif

	CMPU	R5,$256		// length of bytes
	BLT	short

	RLDICR	$0,R5,$56,R6 // chunk to process

	// First step for larger sizes
l1:	MOVD	$32768,R7
	MOVD	R7,R9
	CMP	R6,R7   // compare R6, R7 (MAX SIZE)
	BGT	top	// less than MAX, just do remainder
	MOVD	R6,R7
top:
	SUB	R7,R6,R6

	// mainloop does 128 bytes at a time
	SRD	$7,R7

		// when SS_DISABLE is set, it doesn't. sigaltstack returns ENOMEM
		// if we don't give it a reasonable size.
		// ref: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20140421/214296.html
		new.ss_size = 32768
	}
	libcCall(unsafe.Pointer(abi.FuncPCABI0(sigaltstack_trampoline)), unsafe.Pointer(&new))
	KeepAlive(new)
	KeepAlive(old)
}
func sigaltstack_trampoline()

//go:nosplit
//go:cgo_unsafe_args

	// Setup defaults
	runtimeFlags := map[string]any{
		"overload.global_downstream_max_connections": "2147483647",
		"re2.max_program_size.error_level":           "32768",
		"envoy.deprecated_features:envoy.config.listener.v3.Listener.hidden_envoy_deprecated_use_original_dst": true,
		"envoy.reloadable_features.http_reject_path_with_fragment":                                             false,
	}

			//     ADD   $int64(int16(x)), rY, rY
			// The range is slightly asymmetric as 0x7FFF8000 and above overflow the sign bit, whereas for
			// negative values, this would happen with constant values between -1 and -32768 which can
			// assemble into a single addi.
			is := p.From.Offset>>16 + (p.From.Offset>>15)&1
			i := int64(int16(p.From.Offset))
			p.As = AADDIS
			p.From.Offset = is
			q := obj.Appendp(p, c.newprog)