return i
				}
				continue
			}
		}
		for _, ch := range chars {
			if r == ch {
				return i
			}
		}
	}
	return -1
}

// Generic split: splits after each instance of sep,
// including sepSave bytes of sep in the subslices.
func genSplit(s, sep []byte, sepSave, n int) [][]byte {
	if n == 0 {
		return nil
	}
	if len(sep) == 0 {

	{"3-4", 3 - 4, true},
	{"2|5", 2 | 5, true},
	{"3^4", 3 ^ 4, true},
	{"3*4", 3 * 4, true},
	{"14/4", 14 / 4, true},
	{"3<<4", 3 << 4, true},
	{"48>>3", 48 >> 3, true},
	{"3&9", 3 & 9, true},
	// General
	{"3*2+3", 3*2 + 3, true},
	{"3+2*3", 3 + 2*3, true},
	{"3*(2+3)", 3 * (2 + 3), true},
	{"3*-(2+3)", 3 * -(2 + 3), true},
	{"3<<2+4", 3<<2 + 4, true},
	{"3<<2+4", 3<<2 + 4, true},
	{"3<<(2+4)", 3 << (2 + 4), true},

		return int8(s[0] - '0')
	}
	p.errorf("bad scale: %s", s)
	return 0
}

// operand parses a general operand and stores the result in *a.
func (p *Parser) operand(a *obj.Addr) {
	//fmt.Printf("Operand: %v\n", p.input)
	if len(p.input) == 0 {
		p.errorf("empty operand: cannot happen")
		return
	}
	// General address (with a few exceptions) looks like
	//	$sym±offset(SB)(reg)(index*scale)
	// Exceptions are:
	//

see https://golang.org/pkg/go/build/#hdr-Build_Constraints).

When cross-compiling, you must specify a C cross-compiler for cgo to
use. You can do this by setting the generic CC_FOR_TARGET or the
more specific CC_FOR_${GOOS}_${GOARCH} (for example, CC_FOR_linux_arm)
environment variable when building the toolchain using make.bash,
or you can set the CC environment variable any time you run the go tool.

			expr = &ast.CallExpr{
				Fun:  &ast.Ident{NamePos: (*r.Expr).Pos(), Name: "_Cgo_ptr"},
				Args: []ast.Expr{getNewIdent(name.Mangle)},
			}
		case "type":
			// Okay - might be new(T), T(x), Generic[T], etc.
			if r.Name.Type == nil {
				error_(r.Pos(), "expression C.%s: undefined C type '%s'", fixGo(r.Name.Go), r.Name.C)
			}
		case "var":
			expr = &ast.StarExpr{Star: (*r.Expr).Pos(), X: expr}

// DATA masks<>+0x00(SB)/4, $0x00000000
func (p *Parser) asmData(operands [][]lex.Token) {
	if len(operands) != 2 {
		p.errorf("expect two operands for DATA")
		return
	}

	// Operand 0 has the general form foo<>+0x04(SB)/4.
	op := operands[0]
	n := len(op)
	if n < 3 || op[n-2].ScanToken != '/' || op[n-1].ScanToken != scanner.Int {
		p.errorf("expect /size for DATA argument")
		return
	}

		lineno++

		// Ignore include of textflag.h.
		if strings.HasPrefix(line, "#include ") {
			continue
		}

		// Ignore GLOBL.
		if strings.HasPrefix(line, "GLOBL ") {
			continue
		}

		// The general form of a test input line is:
		//	// comment
		//	INST args [// printed form] [// hex encoding]
		parts := strings.Split(line, "//")
		printed := strings.TrimSpace(parts[0])

// to avoid misleading negative results.
// This makes all the references to os.FileInfo in go1.txt
// be read as if they said fs.FileInfo, since os.FileInfo is now an alias.
// If there are many of these, we could do a more general solution,
// but for now the replacer is fine.
var aliasReplacer = strings.NewReplacer(
	"os.FileInfo", "fs.FileInfo",
	"os.FileMode", "fs.FileMode",
	"os.PathError", "fs.PathError",
)