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authorTed Kremenek <kremenek@apple.com>2010-12-23 19:38:26 +0000
committerTed Kremenek <kremenek@apple.com>2010-12-23 19:38:26 +0000
commit21142581d55918beed544a757e4af3bb865b1812 (patch)
treec630a6cf82f6953372f1ea8f700d0d0a9372472c /lib/EntoSA/Checkers/UndefinedAssignmentChecker.cpp
parentfd03843f0597de5eeced69ca9ae45c478fb2b153 (diff)
Chris Lattner has strong opinions about directory
layout. :) Rename the 'EntoSA' directories to 'StaticAnalyzer'. Internally we will still use the 'ento' namespace for the analyzer engine (unless there are further sabre rattlings...). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122514 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/EntoSA/Checkers/UndefinedAssignmentChecker.cpp')
-rw-r--r--lib/EntoSA/Checkers/UndefinedAssignmentChecker.cpp94
1 files changed, 0 insertions, 94 deletions
diff --git a/lib/EntoSA/Checkers/UndefinedAssignmentChecker.cpp b/lib/EntoSA/Checkers/UndefinedAssignmentChecker.cpp
deleted file mode 100644
index 5060cdff96..0000000000
--- a/lib/EntoSA/Checkers/UndefinedAssignmentChecker.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-//===--- UndefinedAssignmentChecker.h ---------------------------*- C++ -*--==//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This defines UndefinedAssginmentChecker, a builtin check in ExprEngine that
-// checks for assigning undefined values.
-//
-//===----------------------------------------------------------------------===//
-
-#include "ExprEngineInternalChecks.h"
-#include "clang/EntoSA/BugReporter/BugType.h"
-#include "clang/EntoSA/PathSensitive/CheckerVisitor.h"
-
-using namespace clang;
-using namespace ento;
-
-namespace {
-class UndefinedAssignmentChecker
- : public CheckerVisitor<UndefinedAssignmentChecker> {
- BugType *BT;
-public:
- UndefinedAssignmentChecker() : BT(0) {}
- static void *getTag();
- virtual void PreVisitBind(CheckerContext &C, const Stmt *StoreE,
- SVal location, SVal val);
-};
-}
-
-void ento::RegisterUndefinedAssignmentChecker(ExprEngine &Eng){
- Eng.registerCheck(new UndefinedAssignmentChecker());
-}
-
-void *UndefinedAssignmentChecker::getTag() {
- static int x = 0;
- return &x;
-}
-
-void UndefinedAssignmentChecker::PreVisitBind(CheckerContext &C,
- const Stmt *StoreE,
- SVal location,
- SVal val) {
- if (!val.isUndef())
- return;
-
- ExplodedNode *N = C.generateSink();
-
- if (!N)
- return;
-
- const char *str = "Assigned value is garbage or undefined";
-
- if (!BT)
- BT = new BuiltinBug(str);
-
- // Generate a report for this bug.
- const Expr *ex = 0;
-
- while (StoreE) {
- if (const BinaryOperator *B = dyn_cast<BinaryOperator>(StoreE)) {
- if (B->isCompoundAssignmentOp()) {
- const GRState *state = C.getState();
- if (state->getSVal(B->getLHS()).isUndef()) {
- str = "The left expression of the compound assignment is an "
- "uninitialized value. The computed value will also be garbage";
- ex = B->getLHS();
- break;
- }
- }
-
- ex = B->getRHS();
- break;
- }
-
- if (const DeclStmt *DS = dyn_cast<DeclStmt>(StoreE)) {
- const VarDecl* VD = dyn_cast<VarDecl>(DS->getSingleDecl());
- ex = VD->getInit();
- }
-
- break;
- }
-
- EnhancedBugReport *R = new EnhancedBugReport(*BT, str, N);
- if (ex) {
- R->addRange(ex->getSourceRange());
- R->addVisitorCreator(bugreporter::registerTrackNullOrUndefValue, ex);
- }
- C.EmitReport(R);
-}
-