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-rw-r--r--clang/lib/StaticAnalyzer/Checkers/IntervalTest.cpp214
1 files changed, 134 insertions, 80 deletions
diff --git a/clang/lib/StaticAnalyzer/Checkers/IntervalTest.cpp b/clang/lib/StaticAnalyzer/Checkers/IntervalTest.cpp
index c1e0273..8a3ef6e 100644
--- a/clang/lib/StaticAnalyzer/Checkers/IntervalTest.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/IntervalTest.cpp
@@ -4,6 +4,7 @@
#include "clang/Analysis/Analyses/Interval.h"
#include "clang/Analysis/CallGraph.h"
#include "llvm/Support/Process.h"
+#include <iostream>
using namespace clang;
using namespace ento;
@@ -12,111 +13,164 @@ using namespace std;
#include <sstream>
template<typename T>
string toString(const T& obj) {
- stringstream stream;
- stream << obj;
- return stream.str();
+stringstream stream;
+stream << obj;
+return stream.str();
+}
+
+#include <algorithm>
+#include <functional>
+#include <cctype>
+#include <locale>
+
+// trim from start
+static inline std::string &ltrim(std::string &s) {
+ s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
+ return s;
+}
+
+// trim from end
+static inline std::string &rtrim(std::string &s) {
+ s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
+ return s;
+}
+
+// trim from both ends
+static inline std::string &trim(std::string &s) {
+ return ltrim(rtrim(s));
}
namespace {
class IntervalTest: public Checker<check::ASTCodeBody> {
public:
- void checkASTCodeBody(const Decl *D, AnalysisManager& mgr,
- BugReporter &BR) const {
- if (IntervalAnalysis *a = mgr.getAnalysis<IntervalAnalysis>(D)) {
- CFG* cfg = mgr.getCFG(D);
+void checkASTCodeBody(const Decl *D, AnalysisManager& mgr,
+ BugReporter &BR) const {
+ if (IntervalAnalysis *a = mgr.getAnalysis<IntervalAnalysis>(D)) {
+ /*CFG* cfg = mgr.getCFG(D);
- set<string> variables;
+ set<string> variables;
- if (const FunctionDecl* func = dyn_cast<const FunctionDecl>(D)) {
- for (unsigned int i = func->getNumParams(); i > 0; i--) {
- variables.insert(func->getParamDecl(i-1)->getNameAsString());
- }
+ if (const FunctionDecl* func = dyn_cast<const FunctionDecl>(D)) {
+ for (unsigned int i = func->getNumParams(); i > 0; i--) {
+ variables.insert(func->getParamDecl(i-1)->getNameAsString());
}
- for (CFG::iterator
- it = cfg->begin(),
- ei = cfg->end();
- it != ei;
- ++it) {
- for (CFGBlock::iterator
- block_it = (*it)->begin(),
- block_end = (*it)->end();
- block_it != block_end;
- block_it++) {
- const CFGStmt* cfg_stmt = block_it->getAs<CFGStmt>();
- const Stmt* stmt = cfg_stmt->getStmt();
- if (stmt->getStmtClass() == Stmt::BinaryOperatorClass) {
- const BinaryOperator* binop = static_cast<const BinaryOperator*>(stmt);
- if (binop->isAssignmentOp()) {
- const Expr* left = binop->getLHS()->IgnoreParenCasts();
- if (left->getStmtClass() == Stmt::DeclRefExprClass) {
- variables.insert(static_cast<const DeclRefExpr*>(left)->getNameInfo().getAsString());
- }
+ }
+ for (CFG::iterator
+ it = cfg->begin(),
+ ei = cfg->end();
+ it != ei;
+ ++it) {
+ for (CFGBlock::iterator
+ block_it = (*it)->begin(),
+ block_end = (*it)->end();
+ block_it != block_end;
+ block_it++) {
+ const CFGStmt* cfg_stmt = block_it->getAs<CFGStmt>();
+ const Stmt* stmt = cfg_stmt->getStmt();
+ if (stmt->getStmtClass() == Stmt::BinaryOperatorClass) {
+ const BinaryOperator* binop = static_cast<const BinaryOperator*>(stmt);
+ if (binop->isAssignmentOp()) {
+ const Expr* left = binop->getLHS()->IgnoreParenCasts();
+ if (left->getStmtClass() == Stmt::DeclRefExprClass) {
+ variables.insert(static_cast<const DeclRefExpr*>(left)->getNameInfo().getAsString());
}
- } else if (stmt->getStmtClass() == Stmt::DeclStmtClass) {
- const DeclStmt* decl_stmt = static_cast<const DeclStmt*>(stmt);
- for (DeclStmt::const_decl_iterator jt = decl_stmt->decl_begin(),
- ej = decl_stmt->decl_end();
- jt != ej;
- ++jt) {
- if ((*jt)->getKind() == Decl::Var) {
- const VarDecl* decl = static_cast<const VarDecl*>(*jt);
- variables.insert(decl->getNameAsString());
- jt++;
- if (jt != ej) {
- llvm::errs() << "Only the first declaration in a multi-declaration statement is used.\n";
- }
- break; // only take the first one, for now
+ }
+ } else if (stmt->getStmtClass() == Stmt::DeclStmtClass) {
+ const DeclStmt* decl_stmt = static_cast<const DeclStmt*>(stmt);
+ for (DeclStmt::const_decl_iterator jt = decl_stmt->decl_begin(),
+ ej = decl_stmt->decl_end();
+ jt != ej;
+ ++jt) {
+ if ((*jt)->getKind() == Decl::Var) {
+ const VarDecl* decl = static_cast<const VarDecl*>(*jt);
+ variables.insert(decl->getNameAsString());
+ jt++;
+ if (jt != ej) {
+ llvm::errs() << "Only the first declaration in a multi-declaration statement is used.\n";
}
+ break; // only take the first one, for now
}
}
}
}
+ }
+ vector<string> labels;
+ ConstraintMatrix T;
+ set<string>::iterator end = variables.end();
+ for (set<string>::iterator it = variables.begin();
+ it != end;
+ ++it) {
+ map<string,int> pos_row;
+ pos_row[*it] = 1;
+ T.push_back(pos_row);
+ labels.push_back(*it);
+ map<string,int> neg_row;
+ neg_row[*it] = -1;
+ T.push_back(neg_row);
+ labels.push_back("-" + *it);
- vector<string> labels;
- ConstraintMatrix T;
- set<string>::iterator end = variables.end();
- for (set<string>::iterator it = variables.begin();
- it != end;
- ++it) {
- map<string,int> pos_row;
- pos_row[*it] = 1;
- T.push_back(pos_row);
- labels.push_back(*it);
-
- map<string,int> neg_row;
- neg_row[*it] = -1;
- T.push_back(neg_row);
- labels.push_back("-" + *it);
-
- for (set<string>::iterator jt = variables.begin();
- jt != end;
- ++jt) {
- if (it != jt) {
- map<string,int> diff_row;
- diff_row[*it] = 1;
- diff_row[*jt] = -1;
- T.push_back(diff_row);
- labels.push_back(*it + " - " + *jt);
- }
+ for (set<string>::iterator jt = variables.begin();
+ jt != end;
+ ++jt) {
+ if (it != jt) {
+ map<string,int> diff_row;
+ diff_row[*it] = 1;
+ diff_row[*jt] = -1;
+ T.push_back(diff_row);
+ labels.push_back(*it + " - " + *jt);
}
}
+ }*/
- map<CFGBlock*,vector<ZBar> > result = a->runOnAllBlocks(*D, T);
+ vector<string> labels;
+ ConstraintMatrix T;
+ while (cin.good()) {
+ string line;
+ getline(cin, line);
+ trim(line);
- for (map<CFGBlock*,vector<ZBar> >::iterator
- it = result.begin(),
- ei = result.end();
- it != ei;
- ++it) {
- llvm::errs() << "Block " << toString(it->first->getBlockID()) << ": \n";
- for (unsigned int i = 0; i < T.size(); ++i) {
- llvm::errs() << "\t" << labels[i] << " <= " << toString(it->second[i]) << "\n";
+ if (line.length() == 0)
+ continue;
+
+ map<string,int> row;
+ size_t neg_sign_index = line.find('-');
+ if (neg_sign_index == string::npos) {
+ row[line] = 1;
+ labels.push_back(line);
+ } else if (neg_sign_index == 0) {
+ row[line.substr(1)] = -1;
+ labels.push_back('-'+line.substr(1));
+ } else {
+ string left = line.substr(0, neg_sign_index);
+ string right = line.substr(neg_sign_index+1);
+ trim(left);
+ trim(right);
+ if (left != right) {
+ row[left] = 1;
+ row[right] = -1;
}
+ labels.push_back(left + '-' + right);
+ }
+ T.push_back(row);
+ }
+
+
+ map<CFGBlock*,vector<ZBar> > result = a->runOnAllBlocks(*D, T);
+
+ for (map<CFGBlock*,vector<ZBar> >::iterator
+ it = result.begin(),
+ ei = result.end();
+ it != ei;
+ ++it) {
+ llvm::errs() << "Block " << toString(it->first->getBlockID()) << ": \n";
+ for (unsigned int i = 0; i < T.size(); ++i) {
+ llvm::errs() << "\t" << labels[i] << " <= " << toString(it->second[i]) << "\n";
}
}
}
+}
};
}
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