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author | Adrian Thurston <thurston@colm.net> | 2020-10-18 11:44:43 -0700 |
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committer | Adrian Thurston <thurston@colm.net> | 2020-10-18 11:44:43 -0700 |
commit | 85b76476de71f43d3eb25d6bef4ee6d84cb71f6c (patch) | |
tree | 65c127fbcf70e62d8a4848be2c9c4ff7d74d86a1 /src/libfsm/flatbreak.cc | |
parent | 86bb5882a70224a29650ccfa1e46c9b023c2a3ef (diff) | |
download | colm-85b76476de71f43d3eb25d6bef4ee6d84cb71f6c.tar.gz |
lift all source code into src/ dirinto-src
Diffstat (limited to 'src/libfsm/flatbreak.cc')
-rw-r--r-- | src/libfsm/flatbreak.cc | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/libfsm/flatbreak.cc b/src/libfsm/flatbreak.cc new file mode 100644 index 00000000..08342625 --- /dev/null +++ b/src/libfsm/flatbreak.cc @@ -0,0 +1,118 @@ +/* + * Copyright 2018-2018 Adrian Thurston <thurston@colm.net> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "flatbreak.h" + +void FlatBreak::LOCATE_TRANS() +{ + if ( redFsm->classMap == 0 ) { + out << + " " << trans << " = " << CAST(UINT()) << ARR_REF( indexDefaults ) << "[" << vCS() << "]" << ";\n"; + } + else { + long lowKey = redFsm->lowKey.getVal(); + long highKey = redFsm->highKey.getVal(); + + bool limitLow = keyOps->eq( lowKey, keyOps->minKey ); + bool limitHigh = keyOps->eq( highKey, keyOps->maxKey ); + + out << + " " << keys << " = " << OFFSET( ARR_REF( transKeys ), "(" + vCS() + "<<1)" ) << ";\n" + " " << inds << " = " << OFFSET( ARR_REF( indices ), + ARR_REF( flatIndexOffset ) + "[" + vCS() + "]" ) << ";\n" + "\n"; + + if ( !limitLow || !limitHigh ) { + out << " if ( "; + + if ( !limitHigh ) + out << GET_KEY() << " <= " << highKey; + + if ( !limitHigh && !limitLow ) + out << " && "; + + if ( !limitLow ) + out << GET_KEY() << " >= " << lowKey; + + out << " ) {\n"; + } + + out << + " " << ic << " = " << CAST("int") << ARR_REF( charClass ) << "[" << CAST("int") << GET_KEY() << + " - " << lowKey << "];\n" + " if ( " << ic << " <= " << CAST("int") << DEREF( ARR_REF( transKeys ), keys.ref() + "+1" ) << " && " << + "" << ic << " >= " << CAST("int") << DEREF( ARR_REF( transKeys ), keys.ref() + "" ) << " )\n" + " " << trans << " = " << CAST(UINT()) << DEREF( ARR_REF( indices ), + inds.ref() + " + " + CAST("int") + "( " + ic.ref() + " - " + CAST("int") + + DEREF( ARR_REF( transKeys ), keys.ref() + "" ) + " ) " ) << "; \n" + " else\n" + " " << trans << " = " << CAST(UINT()) << ARR_REF( indexDefaults ) << + "[" << vCS() << "]" << ";\n"; + + if ( !limitLow || !limitHigh ) { + out << + " }\n" + " else {\n" + " " << trans << " = " << CAST(UINT()) << ARR_REF( indexDefaults ) << "[" << vCS() << "]" << ";\n" + " }\n" + "\n"; + } + } + + +} + +void FlatBreak::LOCATE_COND() +{ + if ( red->condSpaceList.length() > 0 ) { + out << + " " << cond << " = " << CAST( UINT() ) << ARR_REF( transOffsets ) << "[" << trans << "];\n" + "\n"; + + out << + " " << cpc << " = 0;\n"; + + out << + " switch ( " << ARR_REF( transCondSpaces ) << "[" << trans << "] ) {\n" + "\n"; + + for ( CondSpaceList::Iter csi = red->condSpaceList; csi.lte(); csi++ ) { + GenCondSpace *condSpace = csi; + if ( condSpace->numTransRefs > 0 ) { + out << " " << CASE( STR(condSpace->condSpaceId) ) << " {\n"; + for ( GenCondSet::Iter csi = condSpace->condSet; csi.lte(); csi++ ) { + out << "if ( "; + CONDITION( out, *csi ); + Size condValOffset = (1 << csi.pos()); + out << " ) " << cpc << " += " << condValOffset << ";\n"; + } + + out << + " " << CEND() << "\n}\n"; + } + } + + out << + " }\n" + " " << cond << " += " << CAST( UINT() ) << "" << cpc << ";\n"; + } +} |