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

/*
Asm, typically invoked as “go tool asm”, assembles the source file into an object
file named for the basename of the argument source file with a .o suffix. The
object file can then be combined with other objects into a package archive.

# Command Line

Usage:

	go tool asm [flags] file

The specified file must be a Go assembly file.

}

const minReadBufferSize = 16
const maxConsecutiveEmptyReads = 100

// NewReaderSize returns a new [Reader] whose buffer has at least the specified
// size. If the argument io.Reader is already a [Reader] with large enough
// size, it returns the underlying [Reader].
func NewReaderSize(rd io.Reader, size int) *Reader {
	// Is it already a Reader?
	b, ok := rd.(*Reader)

// [Writer.CreateHeader], [Writer.CreateRaw], or [Writer.Close].
//
// In contrast to [Writer.CreateHeader], the bytes passed to Writer are not compressed.
//
// CreateRaw's argument is stored in w. If the argument is a pointer to the embedded
// [FileHeader] in a [File] obtained from a [Reader] created from in-memory data,
// then w will refer to all of that memory.

//
// This script supports an extra flag, -lldb, that pauses execution
// just before the main program begins and allows the user to control
// the remote lldb session. This flag is appended to the end of the
// script's arguments and is not passed through to the underlying
// binary.
//
// This script requires that three environment variables be set:
//
//	GOIOS_DEV_ID: The codesigning developer id or certificate identifier

// It is a comma-separated string; the first part is dir, the rest tags.
// The satisfied tags are derived from context but only those that
// matter (the ones listed in the tags argument plus GOOS and GOARCH) are used.
// The tags list, which came from go/build's Package.AllTags,
// is known to be sorted.
func tagKey(dir string, context *build.Context, tags []string) string {
	ctags := map[string]bool{

		case sys.PPC64:
			if arch.IsPPC64CMP(op) {
				// CMPW etc.; third argument is a CR register that goes into prog.Reg.
				prog.From = a[0]
				prog.Reg = p.getRegister(prog, op, &a[2])
				prog.To = a[1]
				break
			}

			prog.From = a[0]
			prog.To = a[2]

			// If the second argument is not a register argument, it must be
			// passed RestArgs/AddRestSource
			switch a[1].Type {

			hexByLine[fmt.Sprintf("%s:%d", input, lineno)] = hexes
		}

		// Canonicalize spacing in printed form.
		// First field is opcode, then tab, then arguments separated by spaces.
		// Canonicalize spaces after commas first.
		// Comma to separate argument gets a space; comma within does not.
		var buf []byte
		nest := 0
		for i := 0; i < len(printed); i++ {
			c := printed[i]
			switch c {
			case '{', '[':

		"#define A",
		"",
	},
	{
		"macro without arguments",
		"#define A() 1234\n" + "A()\n",
		"1234.\n",
	},
	{
		"macro with just parens as body",
		"#define A () \n" + "A\n",
		"(.).\n",
	},
	{
		"macro with parens but no arguments",
		"#define A (x) \n" + "A\n",
		"(.x.).\n",
	},
	{
		"macro with arguments",
		"#define A(x, y, z) x+z+y\n" + "A(1, 2, 3)\n",
		"1.+.3.+.2.\n",
	},

        CGO_CPPFLAGS=""
        CGO_CXXFLAGS="-O2 -g"
        CGO_FFLAGS="-O2 -g"
        CGO_LDFLAGS="-O2 -g"
        PKG_CONFIG="pkg-config"
        GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/44/nbbyll_10jd0z8rj_qxm43740000gn/T/go-build2331607515=/tmp/go-build -gno-record-gcc-switches -fno-common"
      render: shell
    validations:
      required: true

	DC	PLDL1KEEP                                        // ERROR "illegal argument"
	DC	VMALLE1IS                                        // ERROR "illegal argument"
	DC	VAE1IS                                           // ERROR "illegal argument"
	DC	VAE1IS, R0                                       // ERROR "illegal argument"
	DC	IVAC                                             // ERROR "missing register at operand 2"