const (
	H0 = 2166136261
	Hp = 16777619
)

const (
	EscFuncUnknown = 0 + iota
	EscFuncPlanned
	EscFuncStarted
	EscFuncTagged
)

const (
	EscUnknown = iota
	EscNone    // Does not escape to heap, result, or parameters.
	EscHeap    // Reachable from the heap
	EscNever   // By construction will not escape.
)

const (
	FErr fmtMode = iota
	FDbg
	FTypeId
	FTypeIdName // same as FTypeId, but use package name instead of prefix
)

const (
	InitNotStarted = iota
	InitDone
	InitPending
)

const (
	FuncPragmas = Nointerface |
		Noescape |
		Norace |
		Nosplit |
		Noinline |
		NoCheckPtr |
		CgoUnsafeArgs |
		UintptrEscapes |
		Systemstack |
		Nowritebarrier |
		Nowritebarrierrec |
		Yeswritebarrierrec

	TypePragmas = NotInHeap
)

const (
	// Maximum size in bits for Mpints before signalling
	// overflow and also mantissa precision for Mpflts.
	Mpprec = 512
	// Turn on for constant arithmetic debugging output.
	Mpdebug = false
)

const (
	BUCKETSIZE  = 8
	MAXKEYSIZE  = 128
	MAXELEMSIZE = 128
)

const (
	Txxx = types.Txxx

	TINT8    = types.TINT8
	TUINT8   = types.TUINT8
	TINT16   = types.TINT16
	TUINT16  = types.TUINT16
	TINT32   = types.TINT32
	TUINT32  = types.TUINT32
	TINT64   = types.TINT64
	TUINT64  = types.TUINT64
	TINT     = types.TINT
	TUINT    = types.TUINT
	TUINTPTR = types.TUINTPTR

	TCOMPLEX64  = types.TCOMPLEX64
	TCOMPLEX128 = types.TCOMPLEX128

	TFLOAT32 = types.TFLOAT32
	TFLOAT64 = types.TFLOAT64

	TBOOL = types.TBOOL

	TPTR       = types.TPTR
	TFUNC      = types.TFUNC
	TSLICE     = types.TSLICE
	TARRAY     = types.TARRAY
	TSTRUCT    = types.TSTRUCT
	TCHAN      = types.TCHAN
	TMAP       = types.TMAP
	TINTER     = types.TINTER
	TFORW      = types.TFORW
	TANY       = types.TANY
	TSTRING    = types.TSTRING
	TUNSAFEPTR = types.TUNSAFEPTR

	// pseudo-types for literals
	TIDEAL = types.TIDEAL
	TNIL   = types.TNIL
	TBLANK = types.TBLANK

	// pseudo-types for frame layout
	TFUNCARGS = types.TFUNCARGS
	TCHANARGS = types.TCHANARGS

	NTYPE = types.NTYPE
)

const ArhdrSize = 60

const (
	BADWIDTH = types.BADWIDTH
)

const StackMapDontCare = -1000

var (
	Deferreturn,
	Duffcopy,
	Duffzero,

	Udiv *obj.LSym

	BoundsCheckFunc [ssa.BoundsKindCount]*obj.LSym
	ExtendCheckFunc [ssa.BoundsKindCount]*obj.LSym

	// Wasm
	WasmMove,
	WasmZero,
	WasmDiv,
	WasmTruncS,
	WasmTruncU,
	SigPanic *obj.LSym
)

var (
	Debug_append       int
	Debug_checkptr     int
	Debug_closure      int
	Debug_compilelater int

	Debug_dumpptrs     int
	Debug_libfuzzer    int
	Debug_panic        int
	Debug_slice        int
	Debug_vlog         bool
	Debug_wb           int
	Debug_pctab        string
	Debug_locationlist int
	Debug_typecheckinl int
	Debug_gendwarfinl  int
	Debug_softfloat    int
	Debug_defer        int
)

var Ctxt *obj.Link

var Debug_checknil int

var (
	Debug_export int // if set, print debugging information about export data
)

var Debug_gcprog int // set by -d gcprog

var Debug_typeassert int

var GCWriteBarrierReg map[int16]*obj.LSym

var LivenessDontCare = LivenessIndex{StackMapDontCare, true}

var Runtimepkg *types.Pkg // fake package runtime

var Widthptr int

var Widthreg int

type AlgKind int

const (
	// These values are known by runtime.
	ANOEQ AlgKind = iota
	AMEM0
	AMEM8
	AMEM16
	AMEM32
	AMEM64
	AMEM128
	ASTRING
	AINTER
	ANILINTER
	AFLOAT32
	AFLOAT64
	ACPLX64
	ACPLX128

	// Type can be compared/hashed as regular memory.
	AMEM AlgKind = 100

	// Type needs special comparison/hashing functions.
	ASPECIAL AlgKind = -1
)

type Arch struct {
	LinkArch *obj.LinkArch

	REGSP     int
	MAXWIDTH  int64
	SoftFloat bool

	PadFrame func(int64) int64

	// ZeroRange zeroes a range of memory on stack. It is only inserted
	// at function entry, and it is ok to clobber registers.
	ZeroRange func(*Progs, *obj.Prog, int64, int64, *uint32) *obj.Prog

	Ginsnop      func(*Progs) *obj.Prog
	Ginsnopdefer func(*Progs) *obj.Prog // special ginsnop for deferreturn

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

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

	// SSAGenBlock emits end-of-block Progs. SSAGenValue should be called
	// for all values in the block before SSAGenBlock.
	SSAGenBlock func(s *SSAGenState, b, next *ssa.Block)
}

type BlockEffects struct {
	// contains filtered or unexported fields
}

type Branch struct {
	P *obj.Prog  // branch instruction
	B *ssa.Block // target
}

type Class uint8

const (
	Pxxx      Class = iota // no class; used during ssa conversion to indicate pseudo-variables
	PEXTERN                // global variables
	PAUTO                  // local variables
	PAUTOHEAP              // local variables or parameters moved to heap
	PPARAM                 // input arguments
	PPARAMOUT              // output results
	PFUNC                  // global functions

)

type Ctype uint8

const (
	CTxxx Ctype = iota

	CTINT
	CTRUNE
	CTFLT
	CTCPLX
	CTSTR
	CTBOOL
	CTNIL
)

type DebugFlags struct {
	P, B, C, E,
	K, L, N, S,
	W int
	// contains filtered or unexported fields
}

var Debug DebugFlags

type Dlist struct {
	// contains filtered or unexported fields
}

type Error struct {
	// contains filtered or unexported fields
}

type EscEdge struct {
	// contains filtered or unexported fields
}

type EscHole struct {
	// contains filtered or unexported fields
}

type EscLeaks [1 + numEscResults]uint8

type EscLocation struct {
	// contains filtered or unexported fields
}

type EscNote struct {
	// contains filtered or unexported fields
}

type Escape struct {
	// contains filtered or unexported fields
}

type FmtFlag int

const (
	FmtLeft     FmtFlag = 1 << iota // '-'
	FmtSharp                        // '#'
	FmtSign                         // '+'
	FmtUnsigned                     // internal use only (historic: u flag)
	FmtShort                        // verb == 'S'       (historic: h flag)
	FmtLong                         // verb == 'L'       (historic: l flag)
	FmtComma                        // '.' (== hasPrec)  (historic: , flag)
	FmtByte                         // '0'               (historic: hh flag)
)

type Func struct {
	Shortname *types.Sym
	// Extra entry code for the function. For example, allocate and initialize
	// memory for escaping parameters. However, just for OCLOSURE, Enter is a
	// list of ONAME nodes of captured variables
	Enter Nodes
	Exit  Nodes
	// ONAME nodes for closure params, each should have closurevar set
	Cvars Nodes
	// ONAME nodes for all params/locals for this func/closure, does NOT
	// include closurevars until transformclosure runs.
	Dcl []*Node

	// Parents records the parent scope of each scope within a
	// function. The root scope (0) has no parent, so the i'th
	// scope's parent is stored at Parents[i-1].
	Parents []ScopeID

	// Marks records scope boundary changes.
	Marks []Mark

	// Closgen tracks how many closures have been generated within
	// this function. Used by closurename for creating unique
	// function names.
	Closgen int

	FieldTrack map[*types.Sym]struct{}
	DebugInfo  *ssa.FuncDebug
	Ntype      *Node // signature
	Top        int   // top context (ctxCallee, etc)
	Closure    *Node // OCLOSURE <-> ODCLFUNC (see header comment above)
	Nname      *Node // The ONAME node associated with an ODCLFUNC (both have same Type)

	Inl *Inline

	Label int32 // largest auto-generated label in this function

	Endlineno src.XPos
	WBPos     src.XPos // position of first write barrier; see SetWBPos

	Pragma PragmaFlag // go:xxx function annotations
	// contains filtered or unexported fields
}

type GCProg struct {
	// contains filtered or unexported fields
}

type IndexJump struct {
	Jump  obj.As
	Index int
}

type InitEntry struct {
	Xoffset int64 // struct, array only
	Expr    *Node // bytes of run-time computed expressions
}

type InitOrder struct {
	// contains filtered or unexported fields
}

type InitPlan struct {
	E []InitEntry
}

type InitSchedule struct {
	// contains filtered or unexported fields
}

type Inline struct {
	Cost int32 // heuristic cost of inlining this function

	// Copies of Func.Dcl and Nbody for use during inlining.
	Dcl  []*Node
	Body []*Node
}

type Liveness struct {
	// contains filtered or unexported fields
}

type LivenessIndex struct {
	// contains filtered or unexported fields
}

type LivenessMap struct {
	// contains filtered or unexported fields
}

type Mark struct {
	// Pos is the position of the token that marks the scope
	// change.
	Pos src.XPos

	// Scope identifies the innermost scope to the right of Pos.
	Scope ScopeID
}

type Mpcplx struct {
	Real Mpflt
	Imag Mpflt
}

type Mpflt struct {
	Val big.Float
}

type Mpint struct {
	Val  big.Int
	Ovf  bool // set if Val overflowed compiler limit (sticky)
	Rune bool // set if syntax indicates default type rune
}

type Name struct {
	Pack *Node      // real package for import . names
	Pkg  *types.Pkg // pkg for OPACK nodes
	// For a local variable (not param) or extern, the initializing assignment (OAS or OAS2).
	// For a closure var, the ONAME node of the outer captured variable
	Defn *Node
	// The ODCLFUNC node (for a static function/method or a closure) in which
	// local variable or param is declared.
	Curfn     *Node
	Param     *Param // additional fields for ONAME, OTYPE
	Decldepth int32  // declaration loop depth, increased for every loop or label
	// Unique number for ONAME nodes within a function. Function outputs
	// (results) are numbered starting at one, followed by function inputs
	// (parameters), and then local variables. Vargen is used to distinguish
	// local variables/params with the same name.
	Vargen int32
	// contains filtered or unexported fields
}

type NilVal struct{}

type Node struct {
	// Tree structure.
	// Generic recursive walks should follow these fields.
	Left  *Node
	Right *Node
	Ninit Nodes
	Nbody Nodes
	List  Nodes
	Rlist Nodes

	// most nodes
	Type *types.Type
	Orig *Node // original form, for printing, and tracking copies of ONAMEs

	// func
	Func *Func

	// ONAME, OTYPE, OPACK, OLABEL, some OLITERAL
	Name *Name

	Sym *types.Sym  // various
	E   interface{} // Opt or Val, see methods below

	// Various. Usually an offset into a struct. For example:
	// - ONAME nodes that refer to local variables use it to identify their stack frame position.
	// - ODOT, ODOTPTR, and ORESULT use it to indicate offset relative to their base address.
	// - OSTRUCTKEY uses it to store the named field's offset.
	// - Named OLITERALs use it to store their ambient iota value.
	// - OINLMARK stores an index into the inlTree data structure.
	// - OCLOSURE uses it to store ambient iota value, if any.
	// Possibly still more uses. If you find any, document them.
	Xoffset int64

	Pos src.XPos

	Esc uint16 // EscXXX

	Op Op
	// contains filtered or unexported fields
}

var Curfn *Node

type NodeSet map[*Node]struct{}

type Nodes struct {
	// contains filtered or unexported fields
}

type Op uint8

const (
	OXXX Op = iota

	// names
	ONAME // var or func name
	// Unnamed arg or return value: f(int, string) (int, error) { etc }
	// Also used for a qualified package identifier that hasn't been resolved yet.
	ONONAME
	OTYPE    // type name
	OPACK    // import
	OLITERAL // literal

	// expressions
	OADD          // Left + Right
	OSUB          // Left - Right
	OOR           // Left | Right
	OXOR          // Left ^ Right
	OADDSTR       // +{List} (string addition, list elements are strings)
	OADDR         // &Left
	OANDAND       // Left && Right
	OAPPEND       // append(List); after walk, Left may contain elem type descriptor
	OBYTES2STR    // Type(Left) (Type is string, Left is a []byte)
	OBYTES2STRTMP // Type(Left) (Type is string, Left is a []byte, ephemeral)
	ORUNES2STR    // Type(Left) (Type is string, Left is a []rune)
	OSTR2BYTES    // Type(Left) (Type is []byte, Left is a string)
	OSTR2BYTESTMP // Type(Left) (Type is []byte, Left is a string, ephemeral)
	OSTR2RUNES    // Type(Left) (Type is []rune, Left is a string)
	// Left = Right or (if Colas=true) Left := Right
	// If Colas, then Ninit includes a DCL node for Left.
	OAS
	// List = Rlist (x, y, z = a, b, c) or (if Colas=true) List := Rlist
	// If Colas, then Ninit includes DCL nodes for List
	OAS2
	OAS2DOTTYPE // List = Right (x, ok = I.(int))
	OAS2FUNC    // List = Right (x, y = f())
	OAS2MAPR    // List = Right (x, ok = m["foo"])
	OAS2RECV    // List = Right (x, ok = <-c)
	OASOP       // Left Etype= Right (x += y)
	OCALL       // Left(List) (function call, method call or type conversion)

	// OCALLFUNC, OCALLMETH, and OCALLINTER have the same structure.
	// Prior to walk, they are: Left(List), where List is all regular arguments.
	// After walk, List is a series of assignments to temporaries,
	// and Rlist is an updated set of arguments.
	// Nbody is all OVARLIVE nodes that are attached to OCALLxxx.
	// TODO(josharian/khr): Use Ninit instead of List for the assignments to temporaries. See CL 114797.
	OCALLFUNC  // Left(List/Rlist) (function call f(args))
	OCALLMETH  // Left(List/Rlist) (direct method call x.Method(args))
	OCALLINTER // Left(List/Rlist) (interface method call x.Method(args))
	OCALLPART  // Left.Right (method expression x.Method, not called)
	OCAP       // cap(Left)
	OCLOSE     // close(Left)
	OCLOSURE   // func Type { Func.Closure.Nbody } (func literal)
	OCOMPLIT   // Right{List} (composite literal, not yet lowered to specific form)
	OMAPLIT    // Type{List} (composite literal, Type is map)
	OSTRUCTLIT // Type{List} (composite literal, Type is struct)
	OARRAYLIT  // Type{List} (composite literal, Type is array)
	OSLICELIT  // Type{List} (composite literal, Type is slice) Right.Int64() = slice length.
	OPTRLIT    // &Left (left is composite literal)
	OCONV      // Type(Left) (type conversion)
	OCONVIFACE // Type(Left) (type conversion, to interface)
	OCONVNOP   // Type(Left) (type conversion, no effect)
	OCOPY      // copy(Left, Right)
	ODCL       // var Left (declares Left of type Left.Type)

	// Used during parsing but don't last.
	ODCLFUNC  // func f() or func (r) f()
	ODCLFIELD // struct field, interface field, or func/method argument/return value.
	ODCLCONST // const pi = 3.14
	ODCLTYPE  // type Int int or type Int = int

	ODELETE        // delete(List)
	ODOT           // Left.Sym (Left is of struct type)
	ODOTPTR        // Left.Sym (Left is of pointer to struct type)
	ODOTMETH       // Left.Sym (Left is non-interface, Right is method name)
	ODOTINTER      // Left.Sym (Left is interface, Right is method name)
	OXDOT          // Left.Sym (before rewrite to one of the preceding)
	ODOTTYPE       // Left.Right or Left.Type (.Right during parsing, .Type once resolved); after walk, .Right contains address of interface type descriptor and .Right.Right contains address of concrete type descriptor
	ODOTTYPE2      // Left.Right or Left.Type (.Right during parsing, .Type once resolved; on rhs of OAS2DOTTYPE); after walk, .Right contains address of interface type descriptor
	OEQ            // Left == Right
	ONE            // Left != Right
	OLT            // Left < Right
	OLE            // Left <= Right
	OGE            // Left >= Right
	OGT            // Left > Right
	ODEREF         // *Left
	OINDEX         // Left[Right] (index of array or slice)
	OINDEXMAP      // Left[Right] (index of map)
	OKEY           // Left:Right (key:value in struct/array/map literal)
	OSTRUCTKEY     // Sym:Left (key:value in struct literal, after type checking)
	OLEN           // len(Left)
	OMAKE          // make(List) (before type checking converts to one of the following)
	OMAKECHAN      // make(Type, Left) (type is chan)
	OMAKEMAP       // make(Type, Left) (type is map)
	OMAKESLICE     // make(Type, Left, Right) (type is slice)
	OMAKESLICECOPY // makeslicecopy(Type, Left, Right) (type is slice; Left is length and Right is the copied from slice)
	// OMAKESLICECOPY is created by the order pass and corresponds to:
	//  s = make(Type, Left); copy(s, Right)
	//
	// Bounded can be set on the node when Left == len(Right) is known at compile time.
	//
	// This node is created so the walk pass can optimize this pattern which would
	// otherwise be hard to detect after the order pass.
	OMUL         // Left * Right
	ODIV         // Left / Right
	OMOD         // Left % Right
	OLSH         // Left << Right
	ORSH         // Left >> Right
	OAND         // Left & Right
	OANDNOT      // Left &^ Right
	ONEW         // new(Left); corresponds to calls to new in source code
	ONEWOBJ      // runtime.newobject(n.Type); introduced by walk; Left is type descriptor
	ONOT         // !Left
	OBITNOT      // ^Left
	OPLUS        // +Left
	ONEG         // -Left
	OOROR        // Left || Right
	OPANIC       // panic(Left)
	OPRINT       // print(List)
	OPRINTN      // println(List)
	OPAREN       // (Left)
	OSEND        // Left <- Right
	OSLICE       // Left[List[0] : List[1]] (Left is untypechecked or slice)
	OSLICEARR    // Left[List[0] : List[1]] (Left is array)
	OSLICESTR    // Left[List[0] : List[1]] (Left is string)
	OSLICE3      // Left[List[0] : List[1] : List[2]] (Left is untypedchecked or slice)
	OSLICE3ARR   // Left[List[0] : List[1] : List[2]] (Left is array)
	OSLICEHEADER // sliceheader{Left, List[0], List[1]} (Left is unsafe.Pointer, List[0] is length, List[1] is capacity)
	ORECOVER     // recover()
	ORECV        // <-Left
	ORUNESTR     // Type(Left) (Type is string, Left is rune)
	OSELRECV     // Left = <-Right.Left: (appears as .Left of OCASE; Right.Op == ORECV)
	OSELRECV2    // List = <-Right.Left: (appears as .Left of OCASE; count(List) == 2, Right.Op == ORECV)
	OIOTA        // iota
	OREAL        // real(Left)
	OIMAG        // imag(Left)
	OCOMPLEX     // complex(Left, Right) or complex(List[0]) where List[0] is a 2-result function call
	OALIGNOF     // unsafe.Alignof(Left)
	OOFFSETOF    // unsafe.Offsetof(Left)
	OSIZEOF      // unsafe.Sizeof(Left)

	// statements
	OBLOCK // { List } (block of code)
	OBREAK // break [Sym]
	// OCASE:  case List: Nbody (List==nil means default)
	//   For OTYPESW, List is a OTYPE node for the specified type (or OLITERAL
	//   for nil), and, if a type-switch variable is specified, Rlist is an
	//   ONAME for the version of the type-switch variable with the specified
	//   type.
	OCASE
	OCONTINUE // continue [Sym]
	ODEFER    // defer Left (Left must be call)
	OEMPTY    // no-op (empty statement)
	OFALL     // fallthrough
	OFOR      // for Ninit; Left; Right { Nbody }
	// OFORUNTIL is like OFOR, but the test (Left) is applied after the body:
	// 	Ninit
	// 	top: { Nbody }   // Execute the body at least once
	// 	cont: Right
	// 	if Left {        // And then test the loop condition
	// 		List     // Before looping to top, execute List
	// 		goto top
	// 	}
	// OFORUNTIL is created by walk. There's no way to write this in Go code.
	OFORUNTIL
	OGOTO   // goto Sym
	OIF     // if Ninit; Left { Nbody } else { Rlist }
	OLABEL  // Sym:
	OGO     // go Left (Left must be call)
	ORANGE  // for List = range Right { Nbody }
	ORETURN // return List
	OSELECT // select { List } (List is list of OCASE)
	OSWITCH // switch Ninit; Left { List } (List is a list of OCASE)
	// OTYPESW:  Left := Right.(type) (appears as .Left of OSWITCH)
	//   Left is nil if there is no type-switch variable
	OTYPESW

	// types
	OTCHAN   // chan int
	OTMAP    // map[string]int
	OTSTRUCT // struct{}
	OTINTER  // interface{}
	// OTFUNC: func() - Left is receiver field, List is list of param fields, Rlist is
	// list of result fields.
	OTFUNC
	OTARRAY // []int, [8]int, [N]int or [...]int

	// misc
	ODDD        // func f(args ...int) or f(l...) or var a = [...]int{0, 1, 2}.
	OINLCALL    // intermediary representation of an inlined call.
	OEFACE      // itable and data words of an empty-interface value.
	OITAB       // itable word of an interface value.
	OIDATA      // data word of an interface value in Left
	OSPTR       // base pointer of a slice or string.
	OCLOSUREVAR // variable reference at beginning of closure function
	OCFUNC      // reference to c function pointer (not go func value)
	OCHECKNIL   // emit code to ensure pointer/interface not nil
	OVARDEF     // variable is about to be fully initialized
	OVARKILL    // variable is dead
	OVARLIVE    // variable is alive
	ORESULT     // result of a function call; Xoffset is stack offset
	OINLMARK    // start of an inlined body, with file/line of caller. Xoffset is an index into the inline tree.

	// arch-specific opcodes
	ORETJMP // return to other function
	OGETG   // runtime.getg() (read g pointer)

	OEND
)

type Order struct {
	// contains filtered or unexported fields
}

type Param struct {
	Ntype    *Node
	Heapaddr *Node // temp holding heap address of param

	// ONAME PAUTOHEAP
	Stackcopy *Node // the PPARAM/PPARAMOUT on-stack slot (moved func params only)

	// ONAME closure linkage
	// Consider:
	//
	//	func f() {
	//		x := 1 // x1
	//		func() {
	//			use(x) // x2
	//			func() {
	//				use(x) // x3
	//				--- parser is here ---
	//			}()
	//		}()
	//	}
	//
	// There is an original declaration of x and then a chain of mentions of x
	// leading into the current function. Each time x is mentioned in a new closure,
	// we create a variable representing x for use in that specific closure,
	// since the way you get to x is different in each closure.
	//
	// Let's number the specific variables as shown in the code:
	// x1 is the original x, x2 is when mentioned in the closure,
	// and x3 is when mentioned in the closure in the closure.
	//
	// We keep these linked (assume N > 1):
	//
	//   - x1.Defn = original declaration statement for x (like most variables)
	//   - x1.Innermost = current innermost closure x (in this case x3), or nil for none
	//   - x1.IsClosureVar() = false
	//
	//   - xN.Defn = x1, N > 1
	//   - xN.IsClosureVar() = true, N > 1
	//   - x2.Outer = nil
	//   - xN.Outer = x(N-1), N > 2
	//
	//
	// When we look up x in the symbol table, we always get x1.
	// Then we can use x1.Innermost (if not nil) to get the x
	// for the innermost known closure function,
	// but the first reference in a closure will find either no x1.Innermost
	// or an x1.Innermost with .Funcdepth < Funcdepth.
	// In that case, a new xN must be created, linked in with:
	//
	//     xN.Defn = x1
	//     xN.Outer = x1.Innermost
	//     x1.Innermost = xN
	//
	// When we finish the function, we'll process its closure variables
	// and find xN and pop it off the list using:
	//
	//     x1 := xN.Defn
	//     x1.Innermost = xN.Outer
	//
	// We leave x1.Innermost set so that we can still get to the original
	// variable quickly. Not shown here, but once we're
	// done parsing a function and no longer need xN.Outer for the
	// lexical x reference links as described above, funcLit
	// recomputes xN.Outer as the semantic x reference link tree,
	// even filling in x in intermediate closures that might not
	// have mentioned it along the way to inner closures that did.
	// See funcLit for details.
	//
	// During the eventual compilation, then, for closure variables we have:
	//
	//     xN.Defn = original variable
	//     xN.Outer = variable captured in next outward scope
	//                to make closure where xN appears
	//
	// Because of the sharding of pieces of the node, x.Defn means x.Name.Defn
	// and x.Innermost/Outer means x.Name.Param.Innermost/Outer.
	Innermost *Node
	Outer     *Node

	// OTYPE & ONAME //go:embed info,
	// sharing storage to reduce gc.Param size.
	// Extra is nil, or else *Extra is a *paramType or an *embedFileList.
	Extra *interface{}
}

type Pragma struct {
	Flag   PragmaFlag  // collected bits
	Pos    []PragmaPos // position of each individual flag
	Embeds []PragmaEmbed
}

type PragmaEmbed struct {
	Pos      syntax.Pos
	Patterns []string
}

type PragmaFlag int16

const (
	// Func pragmas.
	Nointerface    PragmaFlag = 1 << iota
	Noescape                  // func parameters don't escape
	Norace                    // func must not have race detector annotations
	Nosplit                   // func should not execute on separate stack
	Noinline                  // func should not be inlined
	NoCheckPtr                // func should not be instrumented by checkptr
	CgoUnsafeArgs             // treat a pointer to one arg as a pointer to them all
	UintptrEscapes            // pointers converted to uintptr escape

	// Runtime-only func pragmas.
	// See ../../../../runtime/README.md for detailed descriptions.
	Systemstack        // func must run on system stack
	Nowritebarrier     // emit compiler error instead of write barrier
	Nowritebarrierrec  // error on write barrier in this or recursive callees
	Yeswritebarrierrec // cancels Nowritebarrierrec in this function and callees

	// Runtime and cgo type pragmas
	NotInHeap // values of this type must not be heap allocated

	// Go command pragmas
	GoBuildPragma
)

type PragmaPos struct {
	Flag PragmaFlag
	Pos  syntax.Pos
}

type Progs struct {
	Text *obj.Prog // ATEXT Prog for this function
	// contains filtered or unexported fields
}

type SSAGenState struct {

	// Branches remembers all the branch instructions we've seen
	// and where they would like to go.
	Branches []Branch

	// Some architectures require a 64-bit temporary for FP-related register shuffling. Examples include PPC and Sparc V8.
	ScratchFpMem *Node

	// wasm: The number of values on the WebAssembly stack. This is only used as a safeguard.
	OnWasmStackSkipped int
	// contains filtered or unexported fields
}

type ScopeID int32

type Sig struct {
	// contains filtered or unexported fields
}

type Symlink struct {
	// contains filtered or unexported fields
}

type Timings struct {
	// contains filtered or unexported fields
}

type Val struct {
	// U contains one of:
	// bool     bool when Ctype() == CTBOOL
	// *Mpint   int when Ctype() == CTINT, rune when Ctype() == CTRUNE
	// *Mpflt   float when Ctype() == CTFLT
	// *Mpcplx  pair of floats when Ctype() == CTCPLX
	// string   string when Ctype() == CTSTR
	// *Nilval  when Ctype() == CTNIL
	U interface{}
}