Transforms/Instrumentation/SafeStack.cpp

484   Instruction *BasePointer =
486   assert(BasePointer->getType() == StackPtrTy);
490     IRB.CreateStore(BasePointer, UnsafeStackPtr);
513     IRB.SetInsertPoint(BasePointer->getNextNode());
514     BasePointer = cast<Instruction>(IRB.CreateIntToPtr(
515         IRB.CreateAnd(IRB.CreatePtrToInt(BasePointer, IntPtrTy),
521   IRB.SetInsertPoint(BasePointer->getNextNode());
535     // NOTE: we ensure that BasePointer itself is aligned to >= Align.
539     Value *Off = IRB.CreateGEP(BasePointer, // BasePointer is i8*
545     replaceDbgDeclare(Arg, BasePointer, BasePointer->getNextNode(), DIB,
566     // NOTE: we ensure that BasePointer itself is aligned to >= Align.
570     Value *Off = IRB.CreateGEP(BasePointer, // BasePointer is i8*
577     replaceDbgDeclareForAlloca(AI, BasePointer, DIB, /*Deref=*/true, -StaticOffset);
582   // Re-align BasePointer so that our callees would see it aligned as
584   // FIXME: no need to update BasePointer in leaf functions.
588   IRB.SetInsertPoint(BasePointer->getNextNode());
591       IRB.CreateGEP(BasePointer, ConstantInt::get(Int32Ty, -StaticOffset),