#include "iterator.h"
#include "element.h"
#include "function.h"
+#include "predicate.h"
+#include "set.h"
+#include "csolver.h"
+#include "tunable.h"
+#include "qsort.h"
+#include "subgraph.h"
+#include "elementencoding.h"
EncodingGraph::EncodingGraph(CSolver * _solver) :
solver(_solver) {
-
+}
+int sortEncodingEdge(const void * p1, const void *p2) {
+ const EncodingEdge * e1 = * (const EncodingEdge **) p1;
+ const EncodingEdge * e2 = * (const EncodingEdge **) p2;
+ uint64_t v1 = e1->getValue();
+ uint64_t v2 = e2->getValue();
+ if (v1 < v2)
+ return 1;
+ else if (v1 == v2)
+ return 0;
+ else
+ return -1;
}
void EncodingGraph::buildGraph() {
ASSERT(0);
}
}
+ bsdqsort(edgeVector.expose(), edgeVector.getSize(), sizeof(EncodingEdge *), sortEncodingEdge);
+ decideEdges();
+}
+
+void EncodingGraph::encode() {
+ SetIteratorEncodingSubGraph * itesg=subgraphs.iterator();
+ while(itesg->hasNext()) {
+ EncodingSubGraph *sg=itesg->next();
+ sg->encode();
+ }
+ delete itesg;
+
+ ElementIterator it(solver);
+ while(it.hasNext()) {
+ Element * e = it.next();
+ switch(e->type) {
+ case ELEMSET:
+ case ELEMFUNCRETURN: {
+ ElementEncoding *encoding=getElementEncoding(e);
+ if (encoding->getElementEncodingType() == ELEM_UNASSIGNED) {
+ EncodingNode *n = getNode(e);
+ ASSERT(n != NULL);
+ ElementEncodingType encodetype=n->getEncoding();
+ encoding->setElementEncodingType(encodetype);
+ if (encodetype == UNARY || encodetype == ONEHOT) {
+ encoding->encodingArrayInitialization();
+ } else if (encodetype == BINARYINDEX) {
+ EncodingSubGraph * subgraph = graphMap.get(n);
+ uint encodingSize = subgraph->getEncodingSize(n);
+ uint paddedSize = encoding->getSizeEncodingArray(encodingSize);
+ encoding->allocInUseArrayElement(paddedSize);
+ encoding->allocEncodingArrayElement(paddedSize);
+ Set * s=e->getRange();
+ for(uint i=0;i<s->getSize();i++) {
+ uint64_t value=s->getElement(i);
+ uint encodingIndex=subgraph->getEncoding(n, value);
+ encoding->setInUseElement(encodingIndex);
+ encoding->encodingArray[encodingIndex] = value;
+ }
+ }
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ }
+
+}
+
+void EncodingGraph::mergeNodes(EncodingNode *first, EncodingNode *second) {
+ EncodingSubGraph *graph1=graphMap.get(first);
+ EncodingSubGraph *graph2=graphMap.get(second);
+ if (graph1 == NULL && graph2 == NULL) {
+ graph1 = new EncodingSubGraph();
+ subgraphs.add(graph1);
+ graphMap.put(first, graph1);
+ graph1->addNode(first);
+ }
+ if (graph1 == NULL && graph2 != NULL) {
+ graph1 = graph2;
+ graph2 = NULL;
+ EncodingNode *tmp = second;
+ second = first;
+ first = tmp;
+ }
+ if (graph1 != NULL && graph2 != NULL) {
+ SetIteratorEncodingNode * nodeit=graph2->nodeIterator();
+ while(nodeit->hasNext()) {
+ EncodingNode *node=nodeit->next();
+ graph1->addNode(node);
+ graphMap.put(node, graph1);
+ }
+ subgraphs.remove(graph2);
+ delete nodeit;
+ delete graph2;
+ } else {
+ ASSERT(graph1 != NULL && graph2 == NULL);
+ graph1->addNode(second);
+ graphMap.put(second, graph1);
+ }
}
void EncodingGraph::processElement(Element *e) {
Function *f=ef->getFunction();
if (f->type==OPERATORFUNC) {
FunctionOperator *fo=(FunctionOperator*)f;
- ArithOp op=fo->op;
+ ASSERT(ef->inputs.getSize() == 2);
+ EncodingNode *left=createNode(ef->inputs.get(0));
+ EncodingNode *right=createNode(ef->inputs.get(1));
+ if (left == NULL && right == NULL)
+ return;
+ EncodingNode *dst=createNode(ef);
+ EncodingEdge *edge=getEdge(left, right, dst);
+ edge->numArithOps++;
}
}
void EncodingGraph::processPredicate(BooleanPredicate *b) {
+ Predicate *p=b->getPredicate();
+ if (p->type==OPERATORPRED) {
+ PredicateOperator *po=(PredicateOperator *)p;
+ ASSERT(b->inputs.getSize()==2);
+ EncodingNode *left=createNode(b->inputs.get(0));
+ EncodingNode *right=createNode(b->inputs.get(1));
+ if (left == NULL || right == NULL)
+ return;
+ EncodingEdge *edge=getEdge(left, right, NULL);
+ CompOp op=po->getOp();
+ switch(op) {
+ case SATC_EQUALS:
+ edge->numEquals++;
+ break;
+ case SATC_LT:
+ case SATC_LTE:
+ case SATC_GT:
+ case SATC_GTE:
+ edge->numComparisons++;
+ break;
+ default:
+ ASSERT(0);
+ }
+ }
+}
+uint convertSize(uint cost) {
+ cost = 1.2 * cost; // fudge factor
+ return NEXTPOW2(cost);
}
+void EncodingGraph::decideEdges() {
+ uint size=edgeVector.getSize();
+ for(uint i=0; i<size; i++) {
+ EncodingEdge *ee = edgeVector.get(i);
+ EncodingNode *left = ee->left;
+ EncodingNode *right = ee->right;
+
+ if (ee->encoding != EDGE_UNASSIGNED ||
+ left->encoding != BINARYINDEX ||
+ right->encoding != BINARYINDEX)
+ continue;
+
+ uint64_t eeValue = ee->getValue();
+ if (eeValue == 0)
+ return;
+
+ EncodingSubGraph *leftGraph = graphMap.get(left);
+ EncodingSubGraph *rightGraph = graphMap.get(right);
+ if (leftGraph == NULL && rightGraph !=NULL) {
+ EncodingNode *tmp = left; left=right; right=tmp;
+ EncodingSubGraph *tmpsg = leftGraph; leftGraph = rightGraph; rightGraph = tmpsg;
+ }
+
+ uint leftSize=0, rightSize=0, newSize=0;
+ uint64_t totalCost=0;
+ if (leftGraph == NULL && rightGraph == NULL) {
+ leftSize=convertSize(left->getSize());
+ rightSize=convertSize(right->getSize());
+ newSize=convertSize(left->s->getUnionSize(right->s));
+ newSize=(leftSize > newSize) ? leftSize: newSize;
+ newSize=(rightSize > newSize) ? rightSize: newSize;
+ totalCost = (newSize - leftSize) * left->elements.getSize() +
+ (newSize - rightSize) * right->elements.getSize();
+ } else if (leftGraph != NULL && rightGraph == NULL) {
+ leftSize=convertSize(leftGraph->encodingSize);
+ rightSize=convertSize(right->getSize());
+ newSize=convertSize(leftGraph->estimateNewSize(right));
+ newSize=(leftSize > newSize) ? leftSize: newSize;
+ newSize=(rightSize > newSize) ? rightSize: newSize;
+ totalCost = (newSize - leftSize) * leftGraph->numElements +
+ (newSize - rightSize) * right->elements.getSize();
+ } else {
+ //Neither are null
+ leftSize=convertSize(leftGraph->encodingSize);
+ rightSize=convertSize(rightGraph->encodingSize);
+ newSize=convertSize(leftGraph->estimateNewSize(rightGraph));
+ newSize=(leftSize > newSize) ? leftSize: newSize;
+ newSize=(rightSize > newSize) ? rightSize: newSize;
+ totalCost = (newSize - leftSize) * leftGraph->numElements +
+ (newSize - rightSize) * rightGraph->numElements;
+ }
+ double conversionfactor = 0.5;
+ if ((totalCost * conversionfactor) < eeValue) {
+ //add the edge
+ mergeNodes(left, right);
+ }
+ }
+}
+
+static TunableDesc EdgeEncodingDesc(EDGE_UNASSIGNED, EDGE_MATCH, EDGE_UNASSIGNED);
+
+EncodingEdge * EncodingGraph::getEdge(EncodingNode *left, EncodingNode *right, EncodingNode *dst) {
+ EncodingEdge e(left, right, dst);
+ EncodingEdge *result = edgeMap.get(&e);
+ if (result == NULL) {
+ result=new EncodingEdge(left, right, dst);
+ VarType v1=left->getType();
+ VarType v2=right->getType();
+ if (v1 > v2) {
+ VarType tmp=v2;
+ v2=v1;
+ v1=tmp;
+ }
+
+ if ((left != NULL && left->encoding==BINARYINDEX) &&
+ (right != NULL) && right->encoding==BINARYINDEX) {
+ EdgeEncodingType type=(EdgeEncodingType)solver->getTuner()->getVarTunable(v1, v2, EDGEENCODING, &EdgeEncodingDesc);
+ result->setEncoding(type);
+ if (type == EDGE_MATCH) {
+ mergeNodes(left, right);
+ }
+ }
+ edgeMap.put(result, result);
+ edgeVector.push(result);
+ if (left != NULL)
+ left->edges.add(result);
+ if (right != NULL)
+ right->edges.add(result);
+ if (dst != NULL)
+ dst->edges.add(result);
+ }
+ return result;
+}
+
+EncodingNode::EncodingNode(Set *_s) :
+ s(_s) {
+}
+
+uint EncodingNode::getSize() const {
+ return s->getSize();
+}
+
+VarType EncodingNode::getType() const {
+ return s->getType();
+}
+
+static TunableDesc NodeEncodingDesc(ELEM_UNASSIGNED, BINARYINDEX, ELEM_UNASSIGNED);
+
EncodingNode * EncodingGraph::createNode(Element *e) {
+ if (e->type == ELEMCONST)
+ return NULL;
Set *s = e->getRange();
EncodingNode *n = encodingMap.get(s);
if (n == NULL) {
n = new EncodingNode(s);
+ n->setEncoding((ElementEncodingType)solver->getTuner()->getVarTunable(n->getType(), NODEENCODING, &NodeEncodingDesc));
encodingMap.put(s, n);
}
n->addElement(e);
return n;
}
+EncodingNode * EncodingGraph::getNode(Element *e) {
+ if (e->type == ELEMCONST)
+ return NULL;
+ Set *s = e->getRange();
+ EncodingNode *n = encodingMap.get(s);
+ return n;
+}
+
void EncodingNode::addElement(Element *e) {
elements.add(e);
}
EncodingEdge::EncodingEdge(EncodingNode *_l, EncodingNode *_r) :
left(_l),
right(_r),
- dst(NULL)
+ dst(NULL),
+ encoding(EDGE_UNASSIGNED),
+ numArithOps(0),
+ numEquals(0),
+ numComparisons(0)
{
}
EncodingEdge::EncodingEdge(EncodingNode *_left, EncodingNode *_right, EncodingNode *_dst) :
left(_left),
right(_right),
- dst(_dst)
+ dst(_dst),
+ encoding(EDGE_UNASSIGNED),
+ numArithOps(0),
+ numEquals(0),
+ numComparisons(0)
{
}
bool equalsEncodingEdge(EncodingEdge *e1, EncodingEdge *e2) {
return e1->left == e2->left && e1->right == e2->right && e1->dst == e2->dst;
}
+
+uint64_t EncodingEdge::getValue() const {
+ uint lSize = (left != NULL) ? left->getSize() : 1;
+ uint rSize = (right != NULL) ? right->getSize() : 1;
+ uint min = (lSize < rSize) ? lSize : rSize;
+ return numEquals * min + numComparisons * lSize * rSize;
+}
+
+
projects / satune.git / blobdiff