llvm-6502/lib/CodeGen/MachineFunctionPass.cpp
Chris Lattner 92bef66c10 stop MachineFunctionPass from claiming that it preserves LoopDependence info,
which causes dependence info to be linked into lli.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83289 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-05 02:35:05 +00:00

51 lines
1.8 KiB
C++

//===-- MachineFunctionPass.cpp -------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the definitions of the MachineFunctionPass members.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/IVUsers.h"
#include "llvm/Analysis/LiveValues.h"
#include "llvm/Analysis/MemoryDependenceAnalysis.h"
#include "llvm/CodeGen/MachineFunctionAnalysis.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
using namespace llvm;
bool MachineFunctionPass::runOnFunction(Function &F) {
// Do not codegen any 'available_externally' functions at all, they have
// definitions outside the translation unit.
if (F.hasAvailableExternallyLinkage())
return false;
MachineFunction &MF = getAnalysis<MachineFunctionAnalysis>().getMF();
return runOnMachineFunction(MF);
}
void MachineFunctionPass::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<MachineFunctionAnalysis>();
AU.addPreserved<MachineFunctionAnalysis>();
// MachineFunctionPass preserves all LLVM IR passes, but there's no
// high-level way to express this. Instead, just list a bunch of
// passes explicitly.
AU.addPreserved<AliasAnalysis>();
AU.addPreserved<ScalarEvolution>();
AU.addPreserved<IVUsers>();
AU.addPreserved<MemoryDependenceAnalysis>();
AU.addPreserved<LiveValues>();
AU.addPreserved<DominatorTree>();
AU.addPreserved<DominanceFrontier>();
AU.addPreserved<LoopInfo>();
FunctionPass::getAnalysisUsage(AU);
}