Check in LLVM r95781.
diff --git a/lib/Analysis/DbgInfoPrinter.cpp b/lib/Analysis/DbgInfoPrinter.cpp
new file mode 100644
index 0000000..3532b05
--- /dev/null
+++ b/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;
+}