1 //===-- MachineFunctionAnalysis.cpp ---------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the definitions of the MachineFunctionAnalysis members.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/CodeGen/MachineFunctionAnalysis.h"
15 #include "llvm/CodeGen/MachineFunction.h"
16 #include "llvm/CodeGen/MachineModuleInfo.h"
19 // Register this pass with PassInfo directly to avoid having to define
20 // a default constructor.
22 X("Machine Function Analysis", "machine-function-analysis",
23 intptr_t(&MachineFunctionAnalysis::ID), 0,
24 /*CFGOnly=*/false, /*is_analysis=*/true);
26 char MachineFunctionAnalysis::ID = 0;
28 MachineFunctionAnalysis::MachineFunctionAnalysis(const TargetMachine &tm,
29 CodeGenOpt::Level OL) :
30 FunctionPass(&ID), TM(tm), OptLevel(OL), MF(0) {
33 MachineFunctionAnalysis::~MachineFunctionAnalysis() {
35 assert(!MF && "MachineFunctionAnalysis left initialized!");
38 bool MachineFunctionAnalysis::runOnFunction(Function &F) {
39 assert(!MF && "MachineFunctionAnalysis already initialized!");
40 MF = new MachineFunction(&F, TM, NextFnNum++,
41 getAnalysis<MachineModuleInfo>().getContext());
45 void MachineFunctionAnalysis::releaseMemory() {
50 void MachineFunctionAnalysis::getAnalysisUsage(AnalysisUsage &AU) const {
52 AU.addRequired<MachineModuleInfo>();