Split libAnalysis into two libraries: libAnalysis and libChecker.

(1) libAnalysis is a generic analysis library that can be used by
    Sema.  It defines the CFG, basic dataflow analysis primitives, and
    inexpensive flow-sensitive analyses (e.g. LiveVariables).

(2) libChecker contains the guts of the static analyzer, incuding the
    path-sensitive analysis engine and domain-specific checks.

Now any clients that want to use the frontend to build their own tools
don't need to link in the entire static analyzer.

This change exposes various obvious cleanups that can be made to the
layout of files and headers in libChecker.  More changes pending.  :)

This change also exposed a layering violation between AnalysisContext
and MemRegion.  BlockInvocationContext shouldn't explicitly know about
BlockDataRegions.  For now I've removed the BlockDataRegion* from
BlockInvocationContext (removing context-sensitivity; although this
wasn't used yet).  We need to have a better way to extend
BlockInvocationContext (and any LocationContext) to add
context-sensitivty.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94406 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 153 deletions

diff --git a/lib/Analysis/ValueManager.cpp b/lib/Analysis/ValueManager.cpp
deleted file mode 100644
index d09137330c..0000000000
--- a/lib/Analysis/ValueManager.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-//== ValueManager.cpp - Aggregate manager of symbols and SVals --*- C++ -*--==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file defines ValueManager, a class that manages symbolic values
-//  and SVals created for use by GRExprEngine and related classes.  It
-//  wraps and owns SymbolManager, MemRegionManager, and BasicValueFactory.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Analysis/PathSensitive/ValueManager.h"
-#include "clang/Analysis/PathSensitive/AnalysisContext.h"
-
-using namespace clang;
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-// Utility methods for constructing SVals.
-//===----------------------------------------------------------------------===//
-
-DefinedOrUnknownSVal ValueManager::makeZeroVal(QualType T) {
-  if (Loc::IsLocType(T))
-    return makeNull();
-
-  if (T->isIntegerType())
-    return makeIntVal(0, T);
-
-  // FIXME: Handle floats.
-  // FIXME: Handle structs.
-  return UnknownVal();
-}
-
-//===----------------------------------------------------------------------===//
-// Utility methods for constructing Non-Locs.
-//===----------------------------------------------------------------------===//
-
-NonLoc ValueManager::makeNonLoc(const SymExpr *lhs, BinaryOperator::Opcode op,
-                                const APSInt& v, QualType T) {
-  // The Environment ensures we always get a persistent APSInt in
-  // BasicValueFactory, so we don't need to get the APSInt from
-  // BasicValueFactory again.
-  assert(!Loc::IsLocType(T));
-  return nonloc::SymExprVal(SymMgr.getSymIntExpr(lhs, op, v, T));
-}
-
-NonLoc ValueManager::makeNonLoc(const SymExpr *lhs, BinaryOperator::Opcode op,
-                                const SymExpr *rhs, QualType T) {
-  assert(SymMgr.getType(lhs) == SymMgr.getType(rhs));
-  assert(!Loc::IsLocType(T));
-  return nonloc::SymExprVal(SymMgr.getSymSymExpr(lhs, op, rhs, T));
-}
-
-
-SVal ValueManager::convertToArrayIndex(SVal V) {
-  if (V.isUnknownOrUndef())
-    return V;
-
-  // Common case: we have an appropriately sized integer.
-  if (nonloc::ConcreteInt* CI = dyn_cast<nonloc::ConcreteInt>(&V)) {
-    const llvm::APSInt& I = CI->getValue();
-    if (I.getBitWidth() == ArrayIndexWidth && I.isSigned())
-      return V;
-  }
-
-  return SVator->EvalCastNL(cast<NonLoc>(V), ArrayIndexTy);
-}
-
-DefinedOrUnknownSVal ValueManager::getRegionValueSymbolVal(const MemRegion* R,
-                                                           QualType T) {
-
-  if (T.isNull()) {
-    const TypedRegion* TR = cast<TypedRegion>(R);
-    T = TR->getValueType(SymMgr.getContext());
-  }
-
-  if (!SymbolManager::canSymbolicate(T))
-    return UnknownVal();
-
-  SymbolRef sym = SymMgr.getRegionValueSymbol(R, T);
-
-  if (Loc::IsLocType(T))
-    return loc::MemRegionVal(MemMgr.getSymbolicRegion(sym));
-
-  return nonloc::SymbolVal(sym);
-}
-
-DefinedOrUnknownSVal ValueManager::getConjuredSymbolVal(const void *SymbolTag,
-                                                        const Expr *E,
-                                                        unsigned Count) {
-  QualType T = E->getType();
-
-  if (!SymbolManager::canSymbolicate(T))
-    return UnknownVal();
-
-  SymbolRef sym = SymMgr.getConjuredSymbol(E, Count, SymbolTag);
-
-  if (Loc::IsLocType(T))
-    return loc::MemRegionVal(MemMgr.getSymbolicRegion(sym));
-
-  return nonloc::SymbolVal(sym);
-}
-
-DefinedOrUnknownSVal ValueManager::getConjuredSymbolVal(const void *SymbolTag,
-                                                        const Expr *E,
-                                                        QualType T,
-                                                        unsigned Count) {
-  
-  if (!SymbolManager::canSymbolicate(T))
-    return UnknownVal();
-
-  SymbolRef sym = SymMgr.getConjuredSymbol(E, T, Count, SymbolTag);
-
-  if (Loc::IsLocType(T))
-    return loc::MemRegionVal(MemMgr.getSymbolicRegion(sym));
-
-  return nonloc::SymbolVal(sym);
-}
-
-
-DefinedOrUnknownSVal
-ValueManager::getDerivedRegionValueSymbolVal(SymbolRef parentSymbol,
-                                             const TypedRegion *R) {
-  QualType T = R->getValueType(R->getContext());
-
-  if (!SymbolManager::canSymbolicate(T))
-    return UnknownVal();
-
-  SymbolRef sym = SymMgr.getDerivedSymbol(parentSymbol, R);
-
-  if (Loc::IsLocType(T))
-    return loc::MemRegionVal(MemMgr.getSymbolicRegion(sym));
-
-  return nonloc::SymbolVal(sym);
-}
-
-DefinedSVal ValueManager::getFunctionPointer(const FunctionDecl* FD) {
-  return loc::MemRegionVal(MemMgr.getFunctionTextRegion(FD));
-}
-
-DefinedSVal ValueManager::getBlockPointer(const BlockDecl *D,
-                                          CanQualType locTy,
-                                          const LocationContext *LC) {
-  const BlockTextRegion *BC =
-    MemMgr.getBlockTextRegion(D, locTy, LC->getAnalysisContext());
-  const BlockDataRegion *BD = MemMgr.getBlockDataRegion(BC, LC);
-  return loc::MemRegionVal(BD);
-}
-