Adding basic support for Dwarf line number debug information.

I promise to keep future commits smaller.

llvm-svn: 25396

1 files changed, 2 insertions, 40 deletions

diff --git a/llvm/lib/CodeGen/MachineDebugInfo.cpp b/llvm/lib/CodeGen/MachineDebugInfo.cpp
index d2a5fd5eb35..546468647b1 100644
--- a/llvm/lib/CodeGen/MachineDebugInfo.cpp
+++ b/llvm/lib/CodeGen/MachineDebugInfo.cpp
@@ -6,11 +6,6 @@
 // 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"
 
@@ -20,7 +15,9 @@ using namespace llvm;
 namespace {
   RegisterPass<MachineDebugInfo> X("machinedebuginfo", "Debug Information");
 }
+
   
+//===----------------------------------------------------------------------===//
 /// doInitialization - Initialize the debug state for a new module.
 ///
 bool MachineDebugInfo::doInitialization() {
@@ -32,38 +29,3 @@ bool MachineDebugInfo::doInitialization() {
 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;
-}
-