// in their rank order.  0 is default, more positive
	// is less likely. It's possible to assign a negative
	// unlikeliness (though not currently the case).
	certain := f.Cache.allocInt8Slice(f.NumBlocks()) // In the long run, all outcomes are at least this bad. Mainly for Exit
	defer f.Cache.freeInt8Slice(certain)
	local := f.Cache.allocInt8Slice(f.NumBlocks()) // for our immediate predecessors.
	defer f.Cache.freeInt8Slice(local)

				return err
			}
			tw.curr = &sparseFileWriter{tw.curr, spd, 0}
		}
	*/
	return nil
}

func (tw *Writer) writeGNUHeader(hdr *Header) error {
	// Use long-link files if Name or Linkname exceeds the field size.
	const longName = "././@LongLink"
	if len(hdr.Name) > nameSize {
		data := hdr.Name + "\x00"

			readBytes, _ := buf.Read(tmp)
			yBytes := Repeat(y, growLen)
			allocs := testing.AllocsPerRun(100, func() {
				buf.Grow(growLen)
				buf.Write(yBytes)
			})
			// Check no allocation occurs in write, as long as we're single-threaded.
			if allocs != 0 {
				t.Errorf("allocation occurred during write")
			}
			// Check that buffer has correct data.
			if !Equal(buf.Bytes()[0:startLen-readBytes], xBytes[readBytes:]) {

// [Reader.ReadBytes]('\n') or [Reader.ReadString]('\n') instead or use a [Scanner].
//
// ReadLine tries to return a single line, not including the end-of-line bytes.
// If the line was too long for the buffer then isPrefix is set and the
// beginning of the line is returned. The rest of the line will be returned
// from future calls. isPrefix will be false when returning the last fragment

//    filled by sign-extending the used portion.  Users of AuxInt which interpret
//    AuxInt as unsigned (e.g. shifts) must be careful.

// Suffixes encode the bit width of various instructions.
// L (long word) = 32 bit
// W (word)      = 16 bit
// B (byte)      = 8 bit

// copied from ../../x86/reg.go
var regNames386 = []string{
	"AX",
	"CX",
	"DX",
	"BX",
	"SP",
	"BP",
	"SI",
	"DI",
	"X0",

//    AuxInt as unsigned (e.g. shifts) must be careful.
//  - All SymOff opcodes require their offset to fit in an int32.

// Suffixes encode the bit width of various instructions.
// Q (quad word) = 64 bit
// L (long word) = 32 bit
// W (word)      = 16 bit
// B (byte)      = 8 bit
// D (double)    = 64 bit float
// S (single)    = 32 bit float

// copied from ../../amd64/reg.go
var regNamesAMD64 = []string{
	"AX",
	"CX",

// Copyright 2017 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.

package main

/*
long double x = 0;
*/
import "C"

func main() {
	_ = C.x // ERROR HERE
	_ = C.x

// Because the registers are msan-undefined, the signal handler will
// be invoked with all registers msan-undefined.
__attribute__((noinline))
void msanGoWait(unsigned long a1, unsigned long a2, unsigned long a3, unsigned long a4, unsigned long a5, unsigned long a6) {
	sigset_t mask;

	sigemptyset(&mask);
        sigsuspend(&mask);
}

// msanGoSignalThread is the thread ID of the msanGoLoop thread.

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build ignore

package main

/*
struct tt {
	long long a;
	long long b;
};

struct s {
	struct tt ts[3];
};
*/
import "C"

type TT C.struct_tt

		// It was verified to work with GNU tar 1.27.1 and BSD tar 3.1.2.
		//  dd if=/dev/zero bs=1G count=16 >> writer-big-long.tar
		//  gnutar -xvf writer-big-long.tar
		//  bsdtar -xvf writer-big-long.tar
		//
		// This file is in PAX format.
		file: "testdata/writer-big-long.tar",
		tests: []testFnc{
			testHeader{Header{
				Typeflag: TypeReg,
				Name:     strings.Repeat("longname/", 15) + "16gig.txt",