Using transitive closure of table flow graph, determine which PHV fields are referenced after a given table. This can be used to optimise ExcludeMAUNotMutexHeaders, as if a header mutex is invalidated at a specific location. More...

#include <header_mutex.h>

Inheritance diagram for FieldLevelOptimisation:

[legend]

Public Member Functions
	FieldLevelOptimisation (PhvInfo &phv)

bool	is_deparsed_or_referenced_later (const IR::MAU::Table table, const PHV::Field field)
	If a PHV field is referenced after a given table or it is deparsed, return true.

Public Member Functions inherited from P4::Inspector
const IR::Node *	apply_visitor (const IR::Node , const char name=0) override

profile_t	init_apply (const IR::Node *root) override

virtual void	loop_revisit (const IR::Node *)

virtual void	postorder (const IR::Node *)

virtual bool	preorder (const IR::Node *)

virtual void	revisit (const IR::Node *)

void	revisit_visited ()

bool	visit_in_progress (const IR::Node *n) const

void	visitAgain () const override

void	visitOnce () const override

Public Member Functions inherited from P4::Visitor
virtual bool	check_global (cstring)

virtual void	clear_globals ()

virtual Visitor *	clone () const

virtual ControlFlowVisitor *	controlFlowVisitor ()

virtual void	end_apply (const IR::Node *root)

virtual void	erase_global (cstring)

template<class T>
const T *	findContext () const

template<class T>
const T *	findContext (const Context *&c) const

template<class T>
const T *	findOrigCtxt () const

template<class T>
const T *	findOrigCtxt (const Context *&c) const

virtual Visitor &	flow_clone ()

virtual void	flow_merge (Visitor &)

virtual bool	flow_merge_closure (Visitor &)

virtual void	flow_merge_global_from (cstring)

virtual void	flow_merge_global_to (cstring)

const Context *	getChildContext () const

int	getChildrenVisited () const

const Context *	getContext () const

int	getContextDepth () const

const IR::Node *	getCurrentNode () const

template<class T>
const T *	getCurrentNode () const

const IR::Node *	getOriginal () const

template<class T>
const T *	getOriginal () const

template<class T>
const T *	getParent () const

virtual bool	has_flow_joins () const

profile_t	init_apply (const IR::Node root, const Context parent_context)

template<class T>
bool	isInContext () const

template<class T>
bool	isInContext (const Context *&c) const

bool	isInContext (const IR::Node *n) const

virtual const char *	name () const

template<class T>
void	parallel_visit (const IR::Vector< T > &v, const char *name, int cidx)

template<class T>
void	parallel_visit (const IR::Vector< T > &v, const char *name=0)

template<class T>
void	parallel_visit (IR::Vector< T > &v, const char *name, int cidx)

template<class T>
void	parallel_visit (IR::Vector< T > &v, const char *name=0)

void	print_context () const

const Visitor &	setCalledBy (const Visitor *visitor)

void	setName (const char *name)

void	visit (const IR::Node &n, const char *name, int cidx)

void	visit (const IR::Node &n, const char *name=0)

void	visit (const IR::Node &n, const char name, int cidx)

void	visit (const IR::Node &n, const char name=0)

void	visit (const IR::Node const &n, const char name, int cidx)

void	visit (const IR::Node const &n, const char name=0)

void	visit (IR::Node &n, const char *name, int cidx)

void	visit (IR::Node &n, const char *name=0)

void	visit (IR::Node &, const char =0, int=0)

template<class T, typename = std::enable_if_t<Util::has_SourceInfo_v<T> && !std::is_pointer_v<T>>, class... Args>
void	warn (const int kind, const char *format, const T &node, Args &&...args)
	The const ref variant of the above.

template<class T, typename = std::enable_if_t<Util::has_SourceInfo_v<T>>, class... Args>
void	warn (const int kind, const char format, const T node, Args &&...args)

bool	warning_enabled (int warning_kind) const

Additional Inherited Members
Public Types inherited from P4::Visitor
typedef Visitor_Context	Context

Static Public Member Functions inherited from P4::Visitor
static cstring	demangle (const char *)

static bool	warning_enabled (const Visitor *visitor, int warning_kind)

Public Attributes inherited from P4::Visitor
const Visitor *	called_by = nullptr

cstring	internalName

SplitFlowVisit_base *&	split_link

SplitFlowVisit_base *	split_link_mem = nullptr

Protected Member Functions inherited from P4::Visitor
virtual void	init_join_flows (const IR::Node *)

virtual bool	join_flows (const IR::Node *)

virtual void	post_join_flows (const IR::Node , const IR::Node )

void	visit_children (const IR::Node *, std::function< void()> fn)

Protected Attributes inherited from P4::Visitor
bool	dontForwardChildrenBeforePreorder = false

bool	joinFlows = false

bool	visitDagOnce = true

Detailed Description

Using transitive closure of table flow graph, determine which PHV fields are referenced after a given table. This can be used to optimise ExcludeMAUNotMutexHeaders, as if a header mutex is invalidated at a specific location.

Public Member Functions

Additional Inherited Members

Detailed Description