{12, "ENOMEM", "not enough space"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device busy"},
	{17, "EEXIST", "file exists"},
	{18, "EXDEV", "cross-device link"},
	{19, "ENODEV", "no such device"},
	{20, "ENOTDIR", "not a directory"},
	{21, "EISDIR", "is a directory"},
	{22, "EINVAL", "invalid argument"},

	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device busy"},
	{17, "EEXIST", "file exists"},
	{18, "EXDEV", "cross-device link"},
	{19, "ENODEV", "operation not supported by device"},
	{20, "ENOTDIR", "not a directory"},
	{21, "EISDIR", "is a directory"},
	{22, "EINVAL", "invalid argument"},

	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device busy"},
	{17, "EEXIST", "file exists"},
	{18, "EXDEV", "cross-device link"},
	{19, "ENODEV", "operation not supported by device"},
	{20, "ENOTDIR", "not a directory"},
	{21, "EISDIR", "is a directory"},
	{22, "EINVAL", "invalid argument"},

	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},
	{16, "EBUSY", "device busy"},
	{17, "EEXIST", "file exists"},
	{18, "EXDEV", "cross-device link"},
	{19, "ENODEV", "operation not supported by device"},
	{20, "ENOTDIR", "not a directory"},
	{21, "EISDIR", "is a directory"},
	{22, "EINVAL", "invalid argument"},

	}

	return 0
}

// immrot2a returns bits encoding the immediate constant fields of two instructions,
// such that the encoded constants x, y satisfy x|y==v, x&y==0.
// Returns 0,0 if no such decomposition of v exists.
func immrot2a(v uint32) (uint32, uint32) {
	for i := uint(1); i < 32; i++ {
		m := uint32(1<<i - 1)
		if x, y := immrot(v&m), immrot(v&^m); x != 0 && y != 0 {
			return uint32(x), uint32(y)
		}
	}

		toolchain = append(toolchain, "cmd/buildid")
	}

	if isdir(pathf("%s/src/pkg", goroot)) {
		fatalf("\n\n"+
			"The Go package sources have moved to $GOROOT/src.\n"+
			"*** %s still exists. ***\n"+
			"It probably contains stale files that may confuse the build.\n"+
			"Please (check what's there and) remove it and try again.\n"+
			"See https://golang.org/s/go14nopkg\n",
			pathf("%s/src/pkg", goroot))

			// path because that path could plausibly be provided by some other
			// module.
			//
			// Any other error indicates that the package “exists” (at least in the
			// sense that it cannot exist in any other module), but has some other
			// problem (such as a syntax error).
			return "", err
		}
	}

	for _, mod := range MainModules.Versions() {

		{"type ( E1[P any] struct{ f P }; E2[P any] struct{}; x struct{ E1[int]; *E2[int] }); func (E2[P]) f() {}", false, []int{1, 0}, false},

		// outside methodset
		// (*T).f method exists, but value of type T is not addressable
		{"var x T; type T struct{}; func (*T) f() {}", false, nil, true},

		// outside method set of a generic type

	if hex.DecodedLen(len(val)) > maxLen {
		Exitf("-B option too long (max %d digits): %s", maxLen, ov)
	}

	b, err := hex.DecodeString(val)
	if err != nil {
		if err == hex.ErrLength {
			Exitf("-B argument must have even number of digits: %s", ov)
		}
		if inv, ok := err.(hex.InvalidByteError); ok {
			Exitf("-B argument contains invalid hex digit %c: %s", byte(inv), ov)
		}
		Exitf("-B argument contains invalid hex: %s", ov)

// will be missing completely. To achieve consistent failing behaviour on
// legacy systems, we first test the function pointer via a safeloading
// mechanism to see if the function exists on a given system. Then execution
// is branched to either continue the function call, or return an error.

package unix

import (
	"bytes"
	"fmt"
	"os"
	"reflect"
	"regexp"
	"runtime"
	"sort"