MachineFunctionPass.h revision 266c7bbbbcc4b326dea82e577de1a415d6acc23e
12a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner//===-- MachineFunctionPass.h - Pass for MachineFunctions --------*-C++ -*-===// 2ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 36fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// The LLVM Compiler Infrastructure 46fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell// 57ed47a13356daed2a34cd2209a31f92552e3bdd8Chris Lattner// This file is distributed under the University of Illinois Open Source 67ed47a13356daed2a34cd2209a31f92552e3bdd8Chris Lattner// License. See LICENSE.TXT for details. 7ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 86fbcc26f1460eaee4e0eb8b426fc1ff0c7af11beJohn Criswell//===----------------------------------------------------------------------===// 92a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// 102a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// This file defines the MachineFunctionPass class. MachineFunctionPass's are 112a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// just FunctionPass's, except they operate on machine code as part of a code 122a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// generator. Because they operate on machine code, not the LLVM 132a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// representation, MachineFunctionPass's are not allowed to modify the LLVM 142a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// representation. Due to this limitation, the MachineFunctionPass class takes 152a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// care of declaring that no LLVM passes are invalidated. 162a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner// 172a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner//===----------------------------------------------------------------------===// 182a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner 192a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner#ifndef LLVM_CODEGEN_MACHINE_FUNCTION_PASS_H 202a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner#define LLVM_CODEGEN_MACHINE_FUNCTION_PASS_H 212a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner 222a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner#include "llvm/Pass.h" 232a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner#include "llvm/CodeGen/MachineFunction.h" 242a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner 25d0fde30ce850b78371fd1386338350591f9ff494Brian Gaekenamespace llvm { 26d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 27266c7bbbbcc4b326dea82e577de1a415d6acc23eChris Lattner // FIXME: This pass should declare that the pass does not invalidate any LLVM 28266c7bbbbcc4b326dea82e577de1a415d6acc23eChris Lattner // passes. 292a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattnerstruct MachineFunctionPass : public FunctionPass { 30a6900c7ad9752a27e2e3b1bd78b2af3b1381176dDan Gohman explicit MachineFunctionPass(intptr_t ID) : FunctionPass(ID) {} 31ae73dc1448d25b02cabc7c64c86c64371453dda8Dan Gohman explicit MachineFunctionPass(void *ID) : FunctionPass(ID) {} 32794fd75c67a2cdc128d67342c6d88a504d186896Devang Patel 33d27df628cc6fa29605fa221a2f0b03b4592caf03Dan Gohmanprotected: 342a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner /// runOnMachineFunction - This method must be overloaded to perform the 352a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner /// desired machine code transformation or analysis. 362a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner /// 372a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner virtual bool runOnMachineFunction(MachineFunction &MF) = 0; 382a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner 39d27df628cc6fa29605fa221a2f0b03b4592caf03Dan Gohmanpublic: 40266c7bbbbcc4b326dea82e577de1a415d6acc23eChris Lattner bool runOnFunction(Function &F); 412a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner}; 422a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner 43d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke} // End llvm namespace 44d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 452a4a095e5788be7967c0ac311efc269bc87e80b3Chris Lattner#endif 46