diff options
Diffstat (limited to 'lib/Transforms/Utils/LowerAllocations.cpp')
-rw-r--r-- | lib/Transforms/Utils/LowerAllocations.cpp | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/lib/Transforms/Utils/LowerAllocations.cpp b/lib/Transforms/Utils/LowerAllocations.cpp index d7ca313..8f61d88 100644 --- a/lib/Transforms/Utils/LowerAllocations.cpp +++ b/lib/Transforms/Utils/LowerAllocations.cpp @@ -87,13 +87,10 @@ Pass *llvm::createLowerAllocationsPass(bool LowerMallocArgToInteger) { // This function is always successful. // bool LowerAllocations::doInitialization(Module &M) { - // Ensure context initialization. - BasicBlockPass::doInitialization(M); - - const Type *BPTy = Context->getPointerTypeUnqual(Type::Int8Ty); + const Type *BPTy = M.getContext().getPointerTypeUnqual(Type::Int8Ty); // Prototype malloc as "char* malloc(...)", because we don't know in // doInitialization whether size_t is int or long. - FunctionType *FT = Context->getFunctionType(BPTy, true); + FunctionType *FT = M.getContext().getFunctionType(BPTy, true); MallocFunc = M.getOrInsertFunction("malloc", FT); FreeFunc = M.getOrInsertFunction("free" , Type::VoidTy, BPTy, (Type *)0); return true; @@ -106,6 +103,8 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) { bool Changed = false; assert(MallocFunc && FreeFunc && "Pass not initialized!"); + LLVMContext &Context = BB.getContext(); + BasicBlock::InstListType &BBIL = BB.getInstList(); const TargetData &TD = getAnalysis<TargetData>(); @@ -119,12 +118,12 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) { // malloc(type) becomes i8 *malloc(size) Value *MallocArg; if (LowerMallocArgToInteger) - MallocArg = Context->getConstantInt(Type::Int64Ty, + MallocArg = Context.getConstantInt(Type::Int64Ty, TD.getTypeAllocSize(AllocTy)); else - MallocArg = Context->getConstantExprSizeOf(AllocTy); + MallocArg = Context.getConstantExprSizeOf(AllocTy); MallocArg = - Context->getConstantExprTruncOrBitCast(cast<Constant>(MallocArg), + Context.getConstantExprTruncOrBitCast(cast<Constant>(MallocArg), IntPtrTy); if (MI->isArrayAllocation()) { @@ -133,8 +132,8 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) { MallocArg = MI->getOperand(0); // Operand * 1 = Operand } else if (Constant *CO = dyn_cast<Constant>(MI->getOperand(0))) { CO = - Context->getConstantExprIntegerCast(CO, IntPtrTy, false /*ZExt*/); - MallocArg = Context->getConstantExprMul(CO, + Context.getConstantExprIntegerCast(CO, IntPtrTy, false /*ZExt*/); + MallocArg = Context.getConstantExprMul(CO, cast<Constant>(MallocArg)); } else { Value *Scale = MI->getOperand(0); @@ -157,7 +156,7 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) { if (MCall->getType() != Type::VoidTy) MCast = new BitCastInst(MCall, MI->getType(), "", I); else - MCast = Context->getNullValue(MI->getType()); + MCast = Context.getNullValue(MI->getType()); // Replace all uses of the old malloc inst with the cast inst MI->replaceAllUsesWith(MCast); @@ -167,7 +166,7 @@ bool LowerAllocations::runOnBasicBlock(BasicBlock &BB) { } else if (FreeInst *FI = dyn_cast<FreeInst>(I)) { Value *PtrCast = new BitCastInst(FI->getOperand(0), - Context->getPointerTypeUnqual(Type::Int8Ty), "", I); + Context.getPointerTypeUnqual(Type::Int8Ty), "", I); // Insert a call to the free function... CallInst::Create(FreeFunc, PtrCast, "", I)->setTailCall(); |