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1164632c7e
* Convert over to valueset interface that uses insert & erase insead of add and remove * the -> operator really isn't that hard to use! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1687 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
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#include "llvm/Analysis/LiveVar/ValueSet.h"
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#include "llvm/ConstantVals.h"
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#include <algorithm>
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#include <iostream>
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using std::cerr;
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using std::endl;
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using std::pair;
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using std::hash_set;
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void printValue(const Value *v) { // func to print a Value
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if (v->hasName())
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cerr << v << "(" << v->getName() << ") ";
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else if (Constant *C = dyn_cast<Constant>(v))
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cerr << v << "(" << C->getStrValue() << ") ";
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else
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cerr << v << " ";
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}
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//---------------- Method implementations --------------------------
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// for performing two set unions
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bool ValueSet::setUnion( const ValueSet *set1) {
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pair<iterator, bool> result;
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bool changed = false;
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for(const_iterator set1it = set1->begin() ; set1it != set1->end(); ++set1it) {
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// for all all elements in set1
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result = insert(*set1it); // insert to this set
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if(result.second == true) changed = true;
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}
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return changed;
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}
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// for performing set difference
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void ValueSet::setDifference( const ValueSet *const set1,
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const ValueSet *const set2) {
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const_iterator set1it, set2it;
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for( set1it = set1->begin() ; set1it != set1->end(); ++set1it) {
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// for all elements in set1
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iterator set2it = set2->find( *set1it ); // find wether the elem is in set2
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if( set2it == set2->end() ) // if the element is not in set2
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insert( *set1it ); // insert to this set
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}
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}
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// for performing set subtraction
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void ValueSet::setSubtract( const ValueSet *const set1) {
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const_iterator set1it;
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for( set1it = set1->begin() ; set1it != set1->end(); ++set1it)
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// for all elements in set1
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erase( *set1it ); // erase that element from this set
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}
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void ValueSet::printSet() const { // for printing a live variable set
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for_each(begin(), end(), printValue);
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}
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