83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
//===-- ModuleDebugInfoPrinter.cpp - Prints module debug info metadata ----===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This pass decodes the debug info metadata in a module and prints in a
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// (sufficiently-prepared-) human-readable form.
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//
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// For example, run this pass from opt along with the -analyze option, and
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// it'll print to standard output.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/Passes.h"
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#include "llvm/ADT/Statistic.h"
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#include "llvm/IR/DebugInfo.h"
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#include "llvm/IR/Function.h"
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#include "llvm/Pass.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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namespace {
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class ModuleDebugInfoPrinter : public ModulePass {
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DebugInfoFinder Finder;
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public:
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static char ID; // Pass identification, replacement for typeid
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ModuleDebugInfoPrinter() : ModulePass(ID) {
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initializeModuleDebugInfoPrinterPass(*PassRegistry::getPassRegistry());
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}
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bool runOnModule(Module &M) override;
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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void print(raw_ostream &O, const Module *M) const override;
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};
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}
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char ModuleDebugInfoPrinter::ID = 0;
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INITIALIZE_PASS(ModuleDebugInfoPrinter, "module-debuginfo",
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"Decodes module-level debug info", false, true)
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ModulePass *llvm::createModuleDebugInfoPrinterPass() {
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return new ModuleDebugInfoPrinter();
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}
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bool ModuleDebugInfoPrinter::runOnModule(Module &M) {
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Finder.processModule(M);
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return false;
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}
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void ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const {
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for (DICompileUnit CU : Finder.compile_units()) {
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O << "Compile Unit: ";
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CU.print(O);
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O << '\n';
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}
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for (DISubprogram S : Finder.subprograms()) {
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O << "Subprogram: ";
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S.print(O);
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O << '\n';
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}
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for (DIGlobalVariable GV : Finder.global_variables()) {
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O << "GlobalVariable: ";
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GV.print(O);
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O << '\n';
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}
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for (DIType T : Finder.types()) {
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O << "Type: ";
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T.print(O);
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O << '\n';
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}
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}
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