1 files changed, 105 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Analysis/DbgInfoPrinter.cpp b/contrib/llvm/lib/Analysis/DbgInfoPrinter.cpp
new file mode 100644
index 0000000..3532b05
--- /dev/null
+++ b/contrib/llvm/lib/Analysis/DbgInfoPrinter.cpp
@@ -0,0 +1,105 @@
+//===- DbgInfoPrinter.cpp - Print debug info in a human readable form ------==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements a pass that prints instructions, and associated debug
+// info:
+// 
+//   - source/line/col information
+//   - original variable name
+//   - original type name
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Pass.h"
+#include "llvm/Function.h"
+#include "llvm/IntrinsicInst.h"
+#include "llvm/Metadata.h"
+#include "llvm/Assembly/Writer.h"
+#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/Analysis/Passes.h"
+#include "llvm/Support/CFG.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+static cl::opt<bool>
+PrintDirectory("print-fullpath",
+               cl::desc("Print fullpath when printing debug info"),
+               cl::Hidden);
+
+namespace {
+  class PrintDbgInfo : public FunctionPass {
+    raw_ostream &Out;
+    void printVariableDeclaration(const Value *V);
+  public:
+    static char ID; // Pass identification
+    PrintDbgInfo() : FunctionPass(&ID), Out(outs()) {}
+
+    virtual bool runOnFunction(Function &F);
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+    }
+  };
+  char PrintDbgInfo::ID = 0;
+  static RegisterPass<PrintDbgInfo> X("print-dbginfo",
+                                     "Print debug info in human readable form");
+}
+
+FunctionPass *llvm::createDbgInfoPrinterPass() { return new PrintDbgInfo(); }
+
+void PrintDbgInfo::printVariableDeclaration(const Value *V) {
+  std::string DisplayName, File, Directory, Type;
+  unsigned LineNo;
+
+  if (!getLocationInfo(V, DisplayName, Type, LineNo, File, Directory))
+    return;
+
+  Out << "; ";
+  WriteAsOperand(Out, V, false, 0);
+  Out << " is variable " << DisplayName
+      << " of type " << Type << " declared at ";
+
+  if (PrintDirectory)
+    Out << Directory << "/";
+
+  Out << File << ":" << LineNo << "\n";
+}
+
+bool PrintDbgInfo::runOnFunction(Function &F) {
+  if (F.isDeclaration())
+    return false;
+
+  Out << "function " << F.getName() << "\n\n";
+
+  for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) {
+    BasicBlock *BB = I;
+
+    if (I != F.begin() && (pred_begin(BB) == pred_end(BB)))
+      // Skip dead blocks.
+      continue;
+
+    Out << BB->getName();
+    Out << ":";
+
+    Out << "\n";
+
+    for (BasicBlock::const_iterator i = BB->begin(), e = BB->end();
+         i != e; ++i) {
+
+        printVariableDeclaration(i);
+
+        if (const User *U = dyn_cast<User>(i)) {
+          for(unsigned i=0;i<U->getNumOperands();i++)
+            printVariableDeclaration(U->getOperand(i));
+        }
+    }
+  }
+  return false;
+}