P4C
The P4 Compiler
•All Classes Namespaces Functions Variables Typedefs Enumerations Enumerator Friends Modules Pages
Public Member Functions | Public Attributes | List of all members
DPDK::CollectUseDefInfo Class Reference

#include <dpdkAsmOpt.h>

Inheritance diagram for DPDK::CollectUseDefInfo:
[legend]

Public Member Functions

 CollectUseDefInfo (P4::TypeMap *typeMap)
 
bool haveSingleUseDef (cstring str)
 
bool preorder (const IR::DpdkBinaryStatement *b) override
 
bool preorder (const IR::DpdkCastStatement *c) override
 
bool preorder (const IR::DpdkChecksumAddStatement *c) override
 
bool preorder (const IR::DpdkChecksumSubStatement *c) override
 
bool preorder (const IR::DpdkCounterCountStatement *c) override
 
bool preorder (const IR::DpdkEmitStatement *e) override
 
bool preorder (const IR::DpdkExtractStatement *e) override
 
bool preorder (const IR::DpdkGetHashStatement *c) override
 
bool preorder (const IR::DpdkJmpCondStatement *b) override
 
bool preorder (const IR::DpdkLearnStatement *b) override
 
bool preorder (const IR::DpdkLookaheadStatement *l) override
 
bool preorder (const IR::DpdkMeterDeclStatement *c) override
 
bool preorder (const IR::DpdkMeterExecuteStatement *e) override
 
bool preorder (const IR::DpdkMirrorStatement *m) override
 
bool preorder (const IR::DpdkMovStatement *mv) override
 
bool preorder (const IR::DpdkRearmStatement *r) override
 
bool preorder (const IR::DpdkRecircidStatement *t) override
 
bool preorder (const IR::DpdkRegisterDeclStatement *r) override
 
bool preorder (const IR::DpdkRegisterReadStatement *r) override
 
bool preorder (const IR::DpdkRegisterWriteStatement *r) override
 
bool preorder (const IR::DpdkRxStatement *r) override
 
bool preorder (const IR::DpdkTable *t) override
 
bool preorder (const IR::DpdkTxStatement *t) override
 
bool preorder (const IR::DpdkUnaryStatement *u) override
 
bool preorder (const IR::DpdkVerifyStatement *v) override
 
- Public Member Functions inherited from 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 Visitor
virtual bool check_global (cstring)
 
virtual void clear_globals ()
 
virtual Visitor * clone () const
 
virtual ControlFlowVisitor * controlFlowVisitor ()
 
virtual void end_apply ()
 
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)
 
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>>, 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
 

Public Attributes

std::unordered_map< cstring, int > defInfo
 
std::unordered_map< cstring, bool > dontEliminate
 
std::unordered_map< cstring, const IR::Expression * > replacementMap
 
std::unordered_map< cstring, int > usesInfo
 
- Public Attributes inherited from Visitor
const Visitor * called_by = nullptr
 
cstring internalName
 
SplitFlowVisit_base *& split_link
 
SplitFlowVisit_base * split_link_mem = nullptr
 

Additional Inherited Members

- Public Types inherited from Visitor
typedef Visitor_Context Context
 
- Static Public Member Functions inherited from Visitor
static cstring demangle (const char *)
 
static bool warning_enabled (const Visitor *visitor, int warning_kind)
 
- Protected Member Functions inherited from 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 Visitor
bool dontForwardChildrenBeforePreorder = false
 
bool joinFlows = false
 
bool visitDagOnce = true
 

Detailed Description

This pass collect use def info by analysing all possible source and destinations, this info will be used by copy elimination pass.

Member Data Documentation

◆ usesInfo

std::unordered_map<cstring , int> DPDK::CollectUseDefInfo::usesInfo

Member expression as string considered key for all below maps, and value contains number of occurences either at use or def point. And this point it's assumed all keys are unique.