Add a simple module-level debug info printer. It just sets up a
DebugInfoFinder and iterates over all the contents calling print.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103262 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ModuleDebugInfoPrinter.cpp b/lib/Analysis/ModuleDebugInfoPrinter.cpp
new file mode 100644
index 0000000..556d4c8
--- /dev/null
+++ b/lib/Analysis/ModuleDebugInfoPrinter.cpp
@@ -0,0 +1,86 @@
+//===-- ModuleDebugInfoPrinter.cpp - Prints module debug info metadata ----===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This pass decodes the debug info metadata in a module and prints in a
+// (sufficiently-prepared-) human-readable form.
+//
+// For example, run this pass from opt along with the -analyze option, and
+// it'll print to standard output.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/Passes.h"
+#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/Assembly/Writer.h"
+#include "llvm/Pass.h"
+#include "llvm/Function.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/ADT/Statistic.h"
+using namespace llvm;
+
+namespace {
+ class ModuleDebugInfoPrinter : public ModulePass {
+ DebugInfoFinder Finder;
+ public:
+ static char ID; // Pass identification, replacement for typeid
+ ModuleDebugInfoPrinter() : ModulePass(&ID) {}
+
+ virtual bool runOnModule(Module &M);
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.setPreservesAll();
+ }
+ virtual void print(raw_ostream &O, const Module *M) const;
+ };
+}
+
+char ModuleDebugInfoPrinter::ID = 0;
+static RegisterPass<ModuleDebugInfoPrinter>
+X("module-debuginfo",
+ "Decodes module-level debug info", false, true);
+
+ModulePass *llvm::createModuleDebugInfoPrinterPass() {
+ return new ModuleDebugInfoPrinter();
+}
+
+bool ModuleDebugInfoPrinter::runOnModule(Module &M) {
+ Finder.processModule(M);
+ return false;
+}
+
+void ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const {
+ for (DebugInfoFinder::iterator I = Finder.compile_unit_begin(),
+ E = Finder.compile_unit_end(); I != E; ++I) {
+ O << "Compile Unit: ";
+ DICompileUnit(*I).print(O);
+ O << '\n';
+ }
+
+ for (DebugInfoFinder::iterator I = Finder.subprogram_begin(),
+ E = Finder.subprogram_end(); I != E; ++I) {
+ O << "Subprogram: ";
+ DISubprogram(*I).print(O);
+ O << '\n';
+ }
+
+ for (DebugInfoFinder::iterator I = Finder.global_variable_begin(),
+ E = Finder.global_variable_end(); I != E; ++I) {
+ O << "GlobalVariable: ";
+ DIGlobalVariable(*I).print(O);
+ O << '\n';
+ }
+
+ for (DebugInfoFinder::iterator I = Finder.type_begin(),
+ E = Finder.type_end(); I != E; ++I) {
+ O << "Type: ";
+ DIType(*I).print(O);
+ O << '\n';
+ }
+}