if len(base) != len(snapshot) {
		panic(fmt.Sprintf("the number of coverage bits changed: before=%d, after=%d", len(base), len(snapshot)))
	}
	found := false
	for i := range snapshot {
		if snapshot[i]&^base[i] != 0 {
			found = true
			break
		}
	}
	if !found {
		return nil
	}
	diff := make([]byte, len(snapshot))
	for i := range diff {
		diff[i] = snapshot[i] &^ base[i]
	}
	return diff
}

			T.AddMethod(m)
		}

		// check method order
		if i == 0 {
			// first round: collect methods in given order
			methods = make([]string, T.NumMethods())
			for j := range methods {
				methods[j] = T.Method(j).Name()
			}
		} else {
			// successive rounds: methods must appear in the same order
			if got := T.NumMethods(); got != len(methods) {

	var w [64]uint32
	h0, h1, h2, h3, h4, h5, h6, h7 := dig.h[0], dig.h[1], dig.h[2], dig.h[3], dig.h[4], dig.h[5], dig.h[6], dig.h[7]
	for len(p) >= chunk {
		// Can interlace the computation of w with the
		// rounds below if needed for speed.
		for i := 0; i < 16; i++ {
			j := i * 4
			w[i] = uint32(p[j])<<24 | uint32(p[j+1])<<16 | uint32(p[j+2])<<8 | uint32(p[j+3])
		}
		for i := 16; i < 64; i++ {
			v1 := w[i-2]

		return y
	}
	return x
}

// roundDown10 rounds a number down to the nearest power of 10.
func roundDown10(n int) int {
	var tens = 0
	// tens = floor(log_10(n))
	for n > 10 {
		n = n / 10
		tens++
	}
	// result = 10^tens
	result := 1
	for i := 0; i < tens; i++ {
		result *= 10
	}
	return result
}

// roundUp rounds x up to a number of the form [1eX, 2eX, 5eX].

			T.AddMethod(m)
		}

		// check method order
		if i == 0 {
			// first round: collect methods in given order
			methods = make([]string, T.NumMethods())
			for j := range methods {
				methods[j] = T.Method(j).Name()
			}
		} else {
			// successive rounds: methods must appear in the same order
			if got := T.NumMethods(); got != len(methods) {

	// 
	func max(x, y int) int

	// 
	func min(x, y int) int

	// 
	func parseCpuList()

	// roundDown10 rounds a number down to the nearest power of 10. 
	func roundDown10(n int) int

	// roundUp rounds x up to a number of the form [1eX, 2eX, 5eX]. 
	func roundUp(n int) int

	// startAlarm starts an alarm if requested. 
	func startAlarm()

	// stopAlarm turns off the alarm. 
	func stopAlarm()

	// 

  /**
   * Returns x rounded to either the greatest double less than or equal to the precise value of x,
   * or the least double greater than or equal to the precise value of x.
   */
  abstract double roundToDoubleArbitrarily(X x);

  /** Returns the sign of x: either -1, 0, or 1. */
  abstract int sign(X x);

  /** Returns d's value as an X, rounded with the specified mode. */

	if err != nil {
		fatalf("listing stdlib export files: %v", err)
	}

	// two rounds: once using normal objects, again using .a files (compile -pack).
	for round := 0; round < 2; round++ {
		pkg := "-pack=" + fmt.Sprint(round)

		// The compiler expects the files being read to have the right suffix.
		o := "o"
		if round == 1 {
			o = "a"
		}

  /**
   * Returns x rounded to either the greatest double less than or equal to the precise value of x,
   * or the least double greater than or equal to the precise value of x.
   */
  abstract double roundToDoubleArbitrarily(X x);

  /** Returns the sign of x: either -1, 0, or 1. */
  abstract int sign(X x);

  /** Returns d's value as an X, rounded with the specified mode. */

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include "textflag.h"

// QR is the ChaCha quarter-round on A, B, C, and D.
// V30 is used as a temporary, and V31 is assumed to
// hold the index table for rotate left 8.
#define QR(A, B, C, D) \
	VADD A.S4, B.S4, A.S4; VEOR D.B16, A.B16, D.B16;   VREV32 D.H8, D.H8; \