1 //===-- ModuleDebugInfoPrinter.cpp - Prints module debug info metadata ----===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This pass decodes the debug info metadata in a module and prints in a
11 // (sufficiently-prepared-) human-readable form.
13 // For example, run this pass from opt along with the -analyze option, and
14 // it'll print to standard output.
16 //===----------------------------------------------------------------------===//
18 #include "llvm/Analysis/Passes.h"
19 #include "llvm/ADT/Statistic.h"
20 #include "llvm/IR/DebugInfo.h"
21 #include "llvm/IR/Function.h"
22 #include "llvm/Pass.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/raw_ostream.h"
28 class ModuleDebugInfoPrinter : public ModulePass {
29 DebugInfoFinder Finder;
31 static char ID; // Pass identification, replacement for typeid
32 ModuleDebugInfoPrinter() : ModulePass(ID) {
33 initializeModuleDebugInfoPrinterPass(*PassRegistry::getPassRegistry());
36 bool runOnModule(Module &M) override;
38 void getAnalysisUsage(AnalysisUsage &AU) const override {
41 void print(raw_ostream &O, const Module *M) const override;
45 char ModuleDebugInfoPrinter::ID = 0;
46 INITIALIZE_PASS(ModuleDebugInfoPrinter, "module-debuginfo",
47 "Decodes module-level debug info", false, true)
49 ModulePass *llvm::createModuleDebugInfoPrinterPass() {
50 return new ModuleDebugInfoPrinter();
53 bool ModuleDebugInfoPrinter::runOnModule(Module &M) {
54 Finder.processModule(M);
58 void ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const {
59 for (DICompileUnit CU : Finder.compile_units()) {
60 O << "Compile Unit: ";
65 for (DISubprogram S : Finder.subprograms()) {
71 for (DIGlobalVariable GV : Finder.global_variables()) {
72 O << "GlobalVariable: ";
77 for (DIType T : Finder.types()) {