/* * Copyright 2012, The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef BCC_ABC_EXPAND_VAARG_PASS_H #define BCC_ABC_EXPAND_VAARG_PASS_H #include <llvm/Pass.h> namespace llvm { class Function; class Instruction; class LLVMContext; class Value; } // end llvm namespace namespace bcc { /* * This pass expands va_arg LLVM instruction generated from llvm-ndk-cc. * * LLVM backend does not yet fully support va_arg on many targets. Also, * it does not currently support va_arg with aggregate types on any target. * Therefore, each target should implement its own verion of * ABCExpandVAArg::expandVAArg to expand va_arg. */ class ABCExpandVAArgPass : public llvm::FunctionPass { private: static char ID; protected: llvm::LLVMContext *mContext; private: virtual llvm::Value *expandVAArg(llvm::Instruction *pInst) = 0; public: ABCExpandVAArgPass() : llvm::FunctionPass(ID), mContext(NULL) { } virtual bool runOnFunction(llvm::Function &pFunc); }; } // end bcc namespace #endif // BCC_ABC_EXPAND_VAARG_PASS_H