P4C
The P4 Compiler
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PackConflicts Class Reference

#include <pack_conflicts.h>

Inheritance diagram for PackConflicts:
[legend]

Public Member Functions

 PackConflicts (PhvInfo &p, const DependencyGraph &d, const TablesMutuallyExclusive &m, const MauBacktracker &b, const ActionMutuallyExclusive &a, const PragmaNoPack &no_pack, const TableSummary *table_summary=nullptr)
 
void addPackConflict (const PHV::FieldSlice &f1, const PHV::FieldSlice &f2)
 
bool hasPackConflict (const PHV::FieldSlice &f1, const PHV::FieldSlice &f2) const
 
void printNoPackConflicts () const
 
void removePackConflict (const PHV::FieldSlice &f1, const PHV::FieldSlice &f2)
 
unsigned size () const
 
bool writtenInSameStageDifferentTable (const IR::MAU::Table *t1, const IR::MAU::Table *t2) const
 
- Public Member Functions inherited from P4::PassManager
 PassManager (const PassManager &)=default
 
 PassManager (const std::initializer_list< VisitorRef > &init)
 
 PassManager (PassManager &&)=default
 
void addDebugHook (DebugHook h, bool recursive=false)
 
void addDebugHooks (std::vector< DebugHook > hooks, bool recursive=false)
 
void addPasses (const std::initializer_list< VisitorRef > &init)
 
const IR::Nodeapply_visitor (const IR::Node *, const char *=0) override
 
bool backtrack (trigger &trig) override
 
PassManagerclone () const override
 
void early_exit ()
 
void listPasses (std::ostream &, cstring sep) const
 
bool never_backtracks () override
 
void removePasses (const std::vector< cstring > &exclude)
 
void setStopOnError (bool stop)
 
- Public Member Functions inherited from P4::Visitor
virtual bool check_clone (const Visitor *a)
 
virtual bool check_global (cstring)
 
virtual void clear_globals ()
 
virtual ControlFlowVisitorcontrolFlowVisitor ()
 
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 Visitorflow_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 ContextgetChildContext () const
 
int getChildrenVisited () const
 
const ContextgetContext () const
 
int getContextDepth () const
 
const IR::NodegetCurrentNode () const
 
template<class T >
const T * getCurrentNode () const
 
const IR::NodegetOriginal () 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 VisitorsetCalledBy (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
 
- Public Member Functions inherited from P4::Backtrack

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 Visitorcalled_by = nullptr
 
cstring internalName
 
SplitFlowVisit_base *& split_link
 
SplitFlowVisit_basesplit_link_mem = nullptr
 
- Protected Member Functions inherited from P4::PassManager
profile_t init_apply (const IR::Node *root) override
 
void runDebugHooks (const char *visitorName, const IR::Node *node)
 
- 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)
 
virtual void visitAgain () const
 
virtual void visitOnce () const
 
- Protected Attributes inherited from P4::PassManager
safe_vector< DebugHookdebugHooks
 
safe_vector< Visitor * > passes
 
bool running = false
 
unsigned seqNo = 0
 
bool stop_on_error = true
 
- Protected Attributes inherited from P4::Visitor
bool dontForwardChildrenBeforePreorder = false
 
bool joinFlows = false
 
bool visitDagOnce = true
 

Detailed Description

Copyright (C) 2024 Intel Corporation

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

SPDX-License-Identifier: Apache-2.0 This class is meant to gather information about what fields cannot be packed together because of the constraint that two or more tables in the same stage must not invoke an action that writes the same PHV container.