| //===-- InstrinsicInst.cpp - Intrinsic Instruction Wrappers -----*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements methods that make it really easy to deal with intrinsic |
| // functions. |
| // |
| // All intrinsic function calls are instances of the call instruction, so these |
| // are all subclasses of the CallInst class. Note that none of these classes |
| // has state or virtual methods, which is an important part of this gross/neat |
| // hack working. |
| // |
| // In some cases, arguments to intrinsics need to be generic and are defined as |
| // type pointer to empty struct { }*. To access the real item of interest the |
| // cast instruction needs to be stripped away. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/IntrinsicInst.h" |
| #include "llvm/Constants.h" |
| #include "llvm/GlobalVariable.h" |
| #include "llvm/Metadata.h" |
| using namespace llvm; |
| |
| static Value *CastOperand(Value *C) { |
| if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) |
| if (CE->isCast()) |
| return CE->getOperand(0); |
| return NULL; |
| } |
