package syntax

import (
	"strconv"
	"strings"
	"unicode"
	"unicode/utf8"
)

// Compiled program.
// May not belong in this package, but convenient for now.

// A Prog is a compiled regular expression program.
type Prog struct {
	Inst   []Inst
	Start  int // index of start instruction
	NumCap int // number of InstCapture insts in re
}

// An InstOp is an instruction opcode.
type InstOp uint8

// Copyright 2022 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

import (
	"os"
	"prog/dep"
)

//go:noinline
func fifth() {
	println("hubba")
}

//go:noinline
func sixth() {
	println("wha?")
}

func main() {
	println(dep.Dep1())
	if len(os.Args) > 1 {
		fifth()
	} else {
		sixth()
	}

// Copyright 2022 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

import (
	"os"
	"prog/dep"
)

//go:noinline
func first() {
	println("whee")
}

//go:noinline
func second() {
	println("oy")
}

//go:noinline
func third(x int) int {
	if x != 0 {
		return 42
	}
	println("blarg")
	return 0

	ZeroRange func(*objw.Progs, *obj.Prog, int64, int64, *uint32) *obj.Prog

	Ginsnop func(*objw.Progs) *obj.Prog

	// SSAMarkMoves marks any MOVXconst ops that need to avoid clobbering flags.
	SSAMarkMoves func(*State, *ssa.Block)

	// SSAGenValue emits Prog(s) for the Value.
	SSAGenValue func(*State, *ssa.Value)

	// SSAGenBlock emits end-of-block Progs. SSAGenValue should be called

// multiple instructions (i.e. loop unrolling).
// Must be between 256 and 4096.
const clearLoopCutoff = 1024

// zerorange clears the stack in the given range.
func zerorange(pp *objw.Progs, p *obj.Prog, off, cnt int64, _ *uint32) *obj.Prog {
	if cnt == 0 {
		return p
	}

	// Adjust the frame to account for LR.
	off += base.Ctxt.Arch.FixedFrameSize
	reg := int16(s390x.REGSP)

			break
		}
	}
	if addr == 0 || eaddr < addr {
		return nil
	}
	size := eaddr - addr
	data := make([]byte, size)
	for _, prog := range f.elf.Progs {
		if prog.Vaddr <= addr && addr+size-1 <= prog.Vaddr+prog.Filesz-1 {
			if _, err := prog.ReadAt(data, int64(addr-prog.Vaddr)); err != nil {
				return nil
			}
			return data
		}
	}
	return nil

	"cmd/compile/internal/base"
	"cmd/compile/internal/ir"
	"cmd/compile/internal/objw"
	"cmd/compile/internal/types"
	"cmd/internal/obj"
	"cmd/internal/obj/riscv"
)

func zeroRange(pp *objw.Progs, p *obj.Prog, off, cnt int64, _ *uint32) *obj.Prog {
	if cnt == 0 {
		return p
	}

	// Adjust the frame to account for LR.
	off += base.Ctxt.Arch.FixedFrameSize

	if cnt < int64(4*types.PtrSize) {

// header. The caller has already opened filename, to get f, and read
// at least 4 kB out, in data.
func readELF(name string, f *os.File, data []byte) (buildid string, err error) {
	// Assume the note content is in the data, already read.
	// Rewrite the ELF header to set shoff and shnum to 0, so that we can pass
	// the data to elf.NewFile and it will decode the Prog list but not

	"float64",
}

func main() {
	var prog bytes.Buffer
	fmt.Fprintf(&prog, "package main\n\n")
	fmt.Fprintf(&prog, "import ( \"fmt\"; \"math\" )\n")
	for _, t1 := range types {
		for _, t2 := range types {
			fmt.Fprintf(&prog, "func %[1]s_to_%[2]s(x %[1]s) %[2]s { return %[2]s(x) }\n", t1, t2)
		}
	}

	var outputs []string
	var exprs []string

	fmt.Fprintf(&prog, "var (\n")
	for _, t1 := range types {

// the backtracker using prog.
func maxBitStateLen(prog *syntax.Prog) int {
	if !shouldBacktrack(prog) {
		return 0
	}
	return maxBacktrackVector / len(prog.Inst)
}

// shouldBacktrack reports whether the program is too
// long for the backtracker to run.
func shouldBacktrack(prog *syntax.Prog) bool {
	return len(prog.Inst) <= maxBacktrackProg
}