From 1e80bef8962d84375bdcb3d9d1d43a4631870499 Mon Sep 17 00:00:00 2001 From: Matt Arsenault Date: Sat, 14 Dec 2013 00:27:48 +0000 Subject: Teach MemoryBuiltins about address spaces git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197292 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/MemoryBuiltins.cpp | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'lib/Analysis/MemoryBuiltins.cpp') diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp index 1db0f634c9..37e2e271ce 100644 --- a/lib/Analysis/MemoryBuiltins.cpp +++ b/lib/Analysis/MemoryBuiltins.cpp @@ -399,12 +399,14 @@ ObjectSizeOffsetVisitor::ObjectSizeOffsetVisitor(const DataLayout *DL, LLVMContext &Context, bool RoundToAlign) : DL(DL), TLI(TLI), RoundToAlign(RoundToAlign) { - IntegerType *IntTy = DL->getIntPtrType(Context); - IntTyBits = IntTy->getBitWidth(); - Zero = APInt::getNullValue(IntTyBits); + // Pointer size must be rechecked for each object visited since it could have + // a different address space. } SizeOffsetType ObjectSizeOffsetVisitor::compute(Value *V) { + IntTyBits = DL->getPointerTypeSizeInBits(V->getType()); + Zero = APInt::getNullValue(IntTyBits); + V = V->stripPointerCasts(); if (Instruction *I = dyn_cast(V)) { // If we have already seen this instruction, bail out. Cycles can happen in @@ -592,11 +594,15 @@ ObjectSizeOffsetEvaluator::ObjectSizeOffsetEvaluator(const DataLayout *DL, bool RoundToAlign) : DL(DL), TLI(TLI), Context(Context), Builder(Context, TargetFolder(DL)), RoundToAlign(RoundToAlign) { - IntTy = DL->getIntPtrType(Context); - Zero = ConstantInt::get(IntTy, 0); + // IntTy and Zero must be set for each compute() since the address space may + // be different for later objects. } SizeOffsetEvalType ObjectSizeOffsetEvaluator::compute(Value *V) { + // XXX - Are vectors of pointers possible here? + IntTy = cast(DL->getIntPtrType(V->getType())); + Zero = ConstantInt::get(IntTy, 0); + SizeOffsetEvalType Result = compute_(V); if (!bothKnown(Result)) { -- cgit v1.2.3