From fd035e6496665b1f1197868e21cb0a4594e8db6e Mon Sep 17 00:00:00 2001
From: rdivacky <rdivacky@FreeBSD.org>
Date: Tue, 16 Feb 2010 09:31:36 +0000
Subject: Update clang to r96341.

---
 lib/Analysis/VLASizeChecker.cpp | 96 -----------------------------------------
 1 file changed, 96 deletions(-)
 delete mode 100644 lib/Analysis/VLASizeChecker.cpp

(limited to 'lib/Analysis/VLASizeChecker.cpp')

diff --git a/lib/Analysis/VLASizeChecker.cpp b/lib/Analysis/VLASizeChecker.cpp
deleted file mode 100644
index 2690d6f..0000000
--- a/lib/Analysis/VLASizeChecker.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//=== VLASizeChecker.cpp - Undefined dereference 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 VLASizeChecker, a builtin check in GRExprEngine that 
-// performs checks for declaration of VLA of undefined or zero size.
-//
-//===----------------------------------------------------------------------===//
-
-#include "GRExprEngineInternalChecks.h"
-#include "clang/Analysis/PathSensitive/CheckerVisitor.h"
-#include "clang/Analysis/PathSensitive/GRExprEngine.h"
-#include "clang/Analysis/PathSensitive/BugReporter.h"
-
-using namespace clang;
-
-namespace {
-class VLASizeChecker : public CheckerVisitor<VLASizeChecker> {
-  BugType *BT_zero;
-  BugType *BT_undef;
-  
-public:
-  VLASizeChecker() : BT_zero(0), BT_undef(0) {}
-  static void *getTag() { static int tag = 0; return &tag; }
-  void PreVisitDeclStmt(CheckerContext &C, const DeclStmt *DS);
-};
-} // end anonymous namespace
-
-void clang::RegisterVLASizeChecker(GRExprEngine &Eng) {
-  Eng.registerCheck(new VLASizeChecker());
-}
-
-void VLASizeChecker::PreVisitDeclStmt(CheckerContext &C, const DeclStmt *DS) {
-  if (!DS->isSingleDecl())
-    return;
-  
-  const VarDecl *VD = dyn_cast<VarDecl>(DS->getSingleDecl());
-  if (!VD)
-    return;
-  
-  const VariableArrayType *VLA
-    = C.getASTContext().getAsVariableArrayType(VD->getType());
-  if (!VLA)
-    return;
-
-  // FIXME: Handle multi-dimensional VLAs.
-  const Expr* SE = VLA->getSizeExpr();
-  const GRState *state = C.getState();
-  SVal sizeV = state->getSVal(SE);
-
-  if (sizeV.isUndef()) {
-    // Generate an error node.
-    ExplodedNode *N = C.GenerateSink();
-    if (!N)
-      return;
-    
-    if (!BT_undef)
-      BT_undef = new BuiltinBug("Declared variable-length array (VLA) uses a "
-                                "garbage value as its size");
-
-    EnhancedBugReport *report =
-      new EnhancedBugReport(*BT_undef, BT_undef->getName(), N);
-    report->addRange(SE->getSourceRange());
-    report->addVisitorCreator(bugreporter::registerTrackNullOrUndefValue, SE);
-    C.EmitReport(report);
-    return;
-  }
-  
-  // Check if the size is zero.
-  DefinedOrUnknownSVal sizeD = cast<DefinedOrUnknownSVal>(sizeV);
-
-  const GRState *stateNotZero, *stateZero;
-  llvm::tie(stateNotZero, stateZero) = state->Assume(sizeD);
-
-  if (stateZero && !stateNotZero) {
-    ExplodedNode* N = C.GenerateSink(stateZero);
-    if (!BT_zero)
-      BT_zero = new BuiltinBug("Declared variable-length array (VLA) has zero "
-                               "size");
-
-    EnhancedBugReport *report =
-      new EnhancedBugReport(*BT_zero, BT_zero->getName(), N);
-    report->addRange(SE->getSourceRange());
-    report->addVisitorCreator(bugreporter::registerTrackNullOrUndefValue, SE);
-    C.EmitReport(report);
-    return;
-  }
- 
-  // From this point on, assume that the size is not zero.
-  C.addTransition(stateNotZero);
-}
-- 
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