1 //===- DbgInfoPrinter.cpp - Print debug info in a human readable form ------==//
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 file implements a pass that prints instructions, and associated debug
13 // - source/line/col information
14 // - original variable name
15 // - original type name
17 //===----------------------------------------------------------------------===//
19 #include "llvm/Pass.h"
20 #include "llvm/Function.h"
21 #include "llvm/IntrinsicInst.h"
22 #include "llvm/Metadata.h"
23 #include "llvm/Assembly/Writer.h"
24 #include "llvm/Analysis/DebugInfo.h"
25 #include "llvm/Analysis/Passes.h"
26 #include "llvm/Support/CFG.h"
27 #include "llvm/Support/CommandLine.h"
28 #include "llvm/Support/raw_ostream.h"
33 PrintDirectory("print-fullpath",
34 cl::desc("Print fullpath when printing debug info"),
38 class PrintDbgInfo : public FunctionPass {
40 void printVariableDeclaration(const Value *V);
42 static char ID; // Pass identification
43 PrintDbgInfo() : FunctionPass(ID), Out(errs()) {
44 initializePrintDbgInfoPass(*PassRegistry::getPassRegistry());
47 virtual bool runOnFunction(Function &F);
48 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
52 char PrintDbgInfo::ID = 0;
55 INITIALIZE_PASS(PrintDbgInfo, "print-dbginfo",
56 "Print debug info in human readable form", false, false)
58 FunctionPass *llvm::createDbgInfoPrinterPass() { return new PrintDbgInfo(); }
60 void PrintDbgInfo::printVariableDeclaration(const Value *V) {
61 std::string DisplayName, File, Directory, Type;
64 if (!getLocationInfo(V, DisplayName, Type, LineNo, File, Directory))
68 WriteAsOperand(Out, V, false, 0);
69 Out << " is variable " << DisplayName
70 << " of type " << Type << " declared at ";
73 Out << Directory << "/";
75 Out << File << ":" << LineNo << "\n";
78 bool PrintDbgInfo::runOnFunction(Function &F) {
79 if (F.isDeclaration())
82 Out << "function " << F.getName() << "\n\n";
84 for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) {
87 if (I != F.begin() && (pred_begin(BB) == pred_end(BB)))
96 for (BasicBlock::const_iterator i = BB->begin(), e = BB->end();
99 printVariableDeclaration(i);
101 if (const User *U = dyn_cast<User>(i)) {
102 for(unsigned i=0;i<U->getNumOperands();i++)
103 printVariableDeclaration(U->getOperand(i));