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//===-- llvm/CodeGen/MachineDebugInfo.cpp -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by James M. Laskey and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Collect debug information for a module. This information should be in a
// neutral form that can be used by different debugging schemes.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineDebugInfo.h"
using namespace llvm;
// Handle the Pass registration stuff necessary to use TargetData's.
namespace {
RegisterPass<MachineDebugInfo> X("machinedebuginfo", "Debug Information");
}
/// doInitialization - Initialize the debug state for a new module.
///
bool MachineDebugInfo::doInitialization() {
return false;
}
/// doFinalization - Tear down the debug state after completion of a module.
///
bool MachineDebugInfo::doFinalization() {
return false;
}
/// getUniqueSourceID - Register a source file with debug info. Returns an id.
///
unsigned MachineDebugInfo::getUniqueSourceID(const std::string &fname,
const std::string &dirname) {
// Compose a key
const std::string path = dirname + "/" + fname;
// Check if the source file is already recorded
std::map<std::string, unsigned>::iterator
SMI = SourceMap.lower_bound(path);
// If already there return existing id
if (SMI != SourceMap.end() && SMI->first == path) return SMI->second;
// Bump up the count
++SourceCount;
// Record the count
SourceMap.insert(SMI, std::make_pair(path, SourceCount));
// Return id
return SourceCount;
}
/// getSourceFiles - Return a vector of files. Vector index + 1 equals id.
///
std::vector<std::string> MachineDebugInfo::getSourceFiles() const {
std::vector<std::string> Sources(SourceCount);
for (std::map<std::string, unsigned>::const_iterator SMI = SourceMap.begin(),
E = SourceMap.end();
SMI != E; SMI++) {
unsigned Index = SMI->second - 1;
const std::string &Path = SMI->first;
Sources[Index] = Path;
}
return Sources;
}
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