1 files changed, 0 insertions, 85 deletions
diff --git a/contrib/llvm/tools/clang/lib/Checker/DivZeroChecker.cpp b/contrib/llvm/tools/clang/lib/Checker/DivZeroChecker.cpp
deleted file mode 100644
index 32e2a17..0000000
--- a/contrib/llvm/tools/clang/lib/Checker/DivZeroChecker.cpp
+++ /dev/null
@@ -1,85 +0,0 @@
-//== DivZeroChecker.cpp - Division by zero checker --------------*- C++ -*--==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This defines DivZeroChecker, a builtin check in GRExprEngine that performs
-// checks for division by zeros.
-//
-//===----------------------------------------------------------------------===//
-
-#include "GRExprEngineInternalChecks.h"
-#include "clang/Checker/BugReporter/BugType.h"
-#include "clang/Checker/PathSensitive/CheckerVisitor.h"
-
-using namespace clang;
-
-namespace {
-class DivZeroChecker : public CheckerVisitor<DivZeroChecker> {
-  BuiltinBug *BT;
-public:
-  DivZeroChecker() : BT(0) {}  
-  static void *getTag();
-  void PreVisitBinaryOperator(CheckerContext &C, const BinaryOperator *B);
-};  
-} // end anonymous namespace
-
-void clang::RegisterDivZeroChecker(GRExprEngine &Eng) {
-  Eng.registerCheck(new DivZeroChecker());
-}
-
-void *DivZeroChecker::getTag() {
-  static int x;
-  return &x;
-}
-
-void DivZeroChecker::PreVisitBinaryOperator(CheckerContext &C,
-                                            const BinaryOperator *B) {
-  BinaryOperator::Opcode Op = B->getOpcode();
-  if (Op != BO_Div &&
-      Op != BO_Rem &&
-      Op != BO_DivAssign &&
-      Op != BO_RemAssign)
-    return;
-
-  if (!B->getRHS()->getType()->isIntegerType() ||
-      !B->getRHS()->getType()->isScalarType())
-    return;
-
-  SVal Denom = C.getState()->getSVal(B->getRHS());
-  const DefinedSVal *DV = dyn_cast<DefinedSVal>(&Denom);
-
-  // Divide-by-undefined handled in the generic checking for uses of
-  // undefined values.
-  if (!DV)
-    return;
-
-  // Check for divide by zero.
-  ConstraintManager &CM = C.getConstraintManager();
-  const GRState *stateNotZero, *stateZero;
-  llvm::tie(stateNotZero, stateZero) = CM.AssumeDual(C.getState(), *DV);
-
-  if (stateZero && !stateNotZero) {
-    if (ExplodedNode *N = C.GenerateSink(stateZero)) {
-      if (!BT)
-        BT = new BuiltinBug("Division by zero");
-
-      EnhancedBugReport *R = 
-        new EnhancedBugReport(*BT, BT->getDescription(), N);
-
-      R->addVisitorCreator(bugreporter::registerTrackNullOrUndefValue,
-                           bugreporter::GetDenomExpr(N));
-
-      C.EmitReport(R);
-    }
-    return;
-  }
-
-  // If we get here, then the denom should not be zero. We abandon the implicit
-  // zero denom case for now.
-  C.addTransition(stateNotZero);
-}