diff options
Diffstat (limited to 'lib/Analysis/BasicAliasAnalysis.cpp')
-rw-r--r-- | lib/Analysis/BasicAliasAnalysis.cpp | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp index 5ec9afaec9..99d9499a52 100644 --- a/lib/Analysis/BasicAliasAnalysis.cpp +++ b/lib/Analysis/BasicAliasAnalysis.cpp @@ -25,8 +25,6 @@ #include "llvm/Pass.h" #include "llvm/Target/TargetData.h" #include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/StringMap.h" -#include "llvm/ADT/BitVector.h" #include "llvm/ADT/STLExtras.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/GetElementPtrTypeIterator.h" @@ -116,9 +114,6 @@ namespace { /// global) or not. bool pointsToConstantMemory(const Value *P); - virtual ModRefBehavior getModRefBehavior(Function *F, CallSite CS, - std::vector<PointerAccessInfo> *Info); - private: // CheckGEPInstructions - Check two GEP instructions with known // must-aliasing base pointers. This checks to see if the index expressions @@ -810,37 +805,5 @@ BasicAliasAnalysis::CheckGEPInstructions( return MayAlias; } -static ManagedStatic<BitVector> NoMemoryIntrinsics; -static ManagedStatic<BitVector> OnlyReadsMemoryIntrinsics; - -AliasAnalysis::ModRefBehavior -BasicAliasAnalysis::getModRefBehavior(Function *F, CallSite CS, - std::vector<PointerAccessInfo> *Info) { - if (!F->isDeclaration()) return UnknownModRefBehavior; - - static bool Initialized = false; - if (!Initialized) { - NoMemoryIntrinsics->resize(Intrinsic::num_intrinsics); - OnlyReadsMemoryIntrinsics->resize(Intrinsic::num_intrinsics); -#define GET_MODREF_BEHAVIOR -#include "llvm/Intrinsics.gen" -#undef GET_MODREF_BEHAVIOR - - Initialized = true; - } - - // If this is an intrinsic, we can use lookup tables - if (unsigned id = F->getIntrinsicID()) { - if (NoMemoryIntrinsics->test(id)) - return DoesNotAccessMemory; - if (OnlyReadsMemoryIntrinsics->test(id)) - return OnlyReadsMemory; - - return UnknownModRefBehavior; - } - - return UnknownModRefBehavior; -} - // Make sure that anything that uses AliasAnalysis pulls in this file... DEFINING_FILE_FOR(BasicAliasAnalysis) |