mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-23 15:29:51 +00:00
6ddba2b933
address of the PassInfo directly instead of calling getPassInfo. This eliminates a bunch of dynamic initializations of static data. Also, fold RegisterPassBase into PassInfo, make a bunch of its data members const, and rearrange some code to initialize data members in constructors instead of using setter member functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51022 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
//===- MachineLoopInfo.cpp - Natural Loop Calculator ----------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the MachineLoopInfo class that is used to identify natural
|
|
// loops and determine the loop depth of various nodes of the CFG. Note that
|
|
// the loops identified may actually be several natural loops that share the
|
|
// same header node... not just a single natural loop.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/CodeGen/MachineLoopInfo.h"
|
|
#include "llvm/CodeGen/MachineDominators.h"
|
|
#include "llvm/CodeGen/Passes.h"
|
|
using namespace llvm;
|
|
|
|
TEMPLATE_INSTANTIATION(class LoopBase<MachineBasicBlock>);
|
|
TEMPLATE_INSTANTIATION(class LoopInfoBase<MachineBasicBlock>);
|
|
|
|
char MachineLoopInfo::ID = 0;
|
|
static RegisterPass<MachineLoopInfo>
|
|
X("machine-loops", "Machine Natural Loop Construction", true);
|
|
|
|
const PassInfo *const llvm::MachineLoopInfoID = &X;
|
|
|
|
bool MachineLoopInfo::runOnMachineFunction(MachineFunction &) {
|
|
releaseMemory();
|
|
LI->Calculate(getAnalysis<MachineDominatorTree>().getBase()); // Update
|
|
return false;
|
|
}
|
|
|
|
void MachineLoopInfo::getAnalysisUsage(AnalysisUsage &AU) const {
|
|
AU.setPreservesAll();
|
|
AU.addRequired<MachineDominatorTree>();
|
|
}
|