219 lines
6.8 KiB
C++
219 lines
6.8 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2025, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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// The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software.
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//
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// Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// This notice may not be removed or altered from any source distribution.
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#pragma once
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#include "Vector.hh"
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#include "TimingRole.hh"
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#include "Transition.hh"
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#include "LibertyClass.hh"
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#include "NetworkClass.hh"
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#include "GraphClass.hh"
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#include "SdcClass.hh"
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#include "StaState.hh"
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namespace sta {
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class Report;
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class SdfTriple;
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class SdfPortSpec;
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class SdfScanner;
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typedef Vector<SdfTriple*> SdfTripleSeq;
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class SdfReader : public StaState
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{
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public:
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SdfReader(const char *filename,
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const char *path,
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int arc_min_index,
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int arc_max_index,
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AnalysisType analysis_type,
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bool unescaped_dividers,
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bool is_incremental_only,
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MinMaxAll *cond_use,
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StaState *sta);
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~SdfReader();
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bool read();
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void setDivider(char divider);
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void setTimescale(float multiplier,
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const std::string *units);
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void setPortDeviceDelay(Edge *edge,
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SdfTripleSeq *triples,
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bool from_trans);
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void setEdgeArcDelays(Edge *edge,
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TimingArc *arc,
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SdfTriple *triple);
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void setEdgeArcDelays(Edge *edge,
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TimingArc *arc,
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SdfTriple *triple,
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int triple_index,
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int arc_delay_index);
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void setEdgeArcDelaysCondUse(Edge *edge,
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TimingArc *arc,
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SdfTriple *triple);
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void setEdgeArcDelaysCondUse(Edge *edge,
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TimingArc *arc,
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float *value,
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int triple_index,
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int arc_delay_index,
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const MinMax *min_max);
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void setInstance(const std::string *instance_name);
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void setInstanceWildcard();
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void cellFinish();
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void setCell(const std::string *cell_name);
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void interconnect(const std::string *from_pin_name,
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const std::string *to_pin_name,
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SdfTripleSeq *triples);
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void iopath(SdfPortSpec *from_edge,
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const std::string *to_port_name,
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SdfTripleSeq *triples,
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const std::string *cond,
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bool condelse);
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void timingCheck(const TimingRole *role,
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SdfPortSpec *data_edge,
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SdfPortSpec *clk_edge,
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SdfTriple *triple);
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void timingCheckWidth(SdfPortSpec *edge,
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SdfTriple *triple);
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void timingCheckPeriod(SdfPortSpec *edge,
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SdfTriple *triple);
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void timingCheckSetupHold(SdfPortSpec *data_edge,
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SdfPortSpec *clk_edge,
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SdfTriple *setup_triple,
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SdfTriple *hold_triple);
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void timingCheckRecRem(SdfPortSpec *data_edge,
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SdfPortSpec *clk_edge,
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SdfTriple *rec_triple,
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SdfTriple *rem_triple);
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void timingCheckSetupHold1(SdfPortSpec *data_edge,
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SdfPortSpec *clk_edge,
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SdfTriple *setup_triple,
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SdfTriple *hold_triple,
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const TimingRole *setup_role,
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const TimingRole *hold_role);
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void timingCheckNochange(SdfPortSpec *data_edge,
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SdfPortSpec *clk_edge,
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SdfTriple *before_triple,
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SdfTriple *after_triple);
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void port(const std::string *to_pin_name,
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SdfTripleSeq *triples);
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void device(SdfTripleSeq *triples);
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void device(const std::string *to_pin_name,
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SdfTripleSeq *triples);
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SdfTriple *makeTriple();
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SdfTriple *makeTriple(float value);
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SdfTriple *makeTriple(float *min,
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float *typ,
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float *max);
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void deleteTriple(SdfTriple *triple);
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SdfTripleSeq *makeTripleSeq();
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void deleteTripleSeq(SdfTripleSeq *triples);
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SdfPortSpec *makePortSpec(const Transition *tr,
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const std::string *port,
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const std::string *cond);
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SdfPortSpec *makeCondPortSpec(const std::string *cond_port);
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std::string *unescaped(const std::string *token);
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std::string *makePath(const std::string *head,
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const std::string *tail);
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// Parser state used to control lexer for COND handling.
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bool inTimingCheck() { return in_timing_check_; }
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void setInTimingCheck(bool in);
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bool inIncremental() const { return in_incremental_; }
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void setInIncremental(bool incr);
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std::string *makeBusName(std::string *bus_name,
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int index);
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const std::string &filename() const { return filename_; }
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void sdfWarn(int id,
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const char *fmt, ...);
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void sdfError(int id,
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const char *fmt,
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...);
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void notSupported(const char *feature);
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private:
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int readSdfFile1(Network *network,
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Graph *graph,
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const char *filename);
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Edge *findCheckEdge(Pin *from_pin,
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Pin *to_pin,
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const TimingRole *sdf_role,
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const std::string *cond_start,
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const std::string *cond_end);
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Edge *findWireEdge(Pin *from_pin,
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Pin *to_pin);
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bool condMatch(const std::string *sdf_cond,
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const char *lib_cond);
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void timingCheck1(const TimingRole *role,
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Port *data_port,
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SdfPortSpec *data_edge,
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Port *clk_port,
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SdfPortSpec *clk_edge,
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SdfTriple *triple);
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bool annotateCheckEdges(Pin *data_pin,
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SdfPortSpec *data_edge,
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Pin *clk_pin,
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SdfPortSpec *clk_edge,
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const TimingRole *sdf_role,
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SdfTriple *triple,
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bool match_generic);
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Pin *findPin(const std::string *name);
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Instance *findInstance(const std::string *name);
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void setEdgeDelays(Edge *edge,
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SdfTripleSeq *triples,
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const char *sdf_cmd);
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void setDevicePinDelays(Pin *to_pin,
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SdfTripleSeq *triples);
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Port *findPort(const Cell *cell,
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const std::string *port_name);
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std::string filename_;
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SdfScanner *scanner_;
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const char *path_;
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// Which values to pull out of the sdf triples.
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int triple_min_index_;
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int triple_max_index_;
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// Which arc delay value to deposit the sdf values into.
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int arc_delay_min_index_;
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int arc_delay_max_index_;
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AnalysisType analysis_type_;
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bool unescaped_dividers_;
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bool is_incremental_only_;
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MinMaxAll *cond_use_;
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char divider_;
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char escape_;
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Instance *instance_;
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const std::string *cell_name_;
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bool in_timing_check_;
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bool in_incremental_;
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float timescale_;
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static const int null_index_ = -1;
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};
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} // namespace
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