diff --git a/lib/Analysis/DbgInfoPrinter.cpp b/lib/Analysis/DbgInfoPrinter.cpp index e43bc81ffac..d80d5811e09 100644 --- a/lib/Analysis/DbgInfoPrinter.cpp +++ b/lib/Analysis/DbgInfoPrinter.cpp @@ -1,4 +1,4 @@ -//===- DbgInfoPrinter.cpp - Print debug info in a human readable form -----==// +//===- DbgInfoPrinter.cpp - Print debug info in a human readable form ------==// // // The LLVM Compiler Infrastructure // @@ -9,150 +9,159 @@ // // 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/Module.h" -#include "llvm/Value.h" #include "llvm/IntrinsicInst.h" #include "llvm/Assembly/Writer.h" #include "llvm/Analysis/DebugInfo.h" #include "llvm/Analysis/Passes.h" #include "llvm/Analysis/ValueTracking.h" #include "llvm/Support/CFG.h" -#include "llvm/Support/Compiler.h" #include "llvm/Support/CommandLine.h" #include "llvm/Support/raw_ostream.h" + using namespace llvm; static cl::opt -PrintDirectory("print-fullpath", cl::desc("Print fullpath when printing debug info"), cl::Hidden); +PrintDirectory("print-fullpath", + cl::desc("Print fullpath when printing debug info"), + cl::Hidden); namespace { - struct VISIBILITY_HIDDEN PrintDbgInfo : public FunctionPass { - private: - raw_ostream &Out; - void printStopPoint(const DbgStopPointInst *DSI); - void printFuncStart(const DbgFuncStartInst *FS); - void printVariableDeclaration(const Value *V); - public: - static char ID; // Pass identification - PrintDbgInfo() : FunctionPass(&ID), Out(outs()) {} + class VISIBILITY_HIDDEN PrintDbgInfo : public FunctionPass { + raw_ostream &Out; + void printStopPoint(const DbgStopPointInst *DSI); + void printFuncStart(const DbgFuncStartInst *FS); + 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 X("print-dbginfo", - "Print debug info in human readable form"); + virtual bool runOnFunction(Function &F); + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.setPreservesAll(); + } + }; + char PrintDbgInfo::ID = 0; + static RegisterPass X("print-dbginfo", + "Print debug info in human readable form"); } FunctionPass *llvm::createDbgInfoPrinterPass() { return new PrintDbgInfo(); } -void PrintDbgInfo::printVariableDeclaration(const Value *V) -{ +void PrintDbgInfo::printVariableDeclaration(const Value *V) { std::string DisplayName, File, Directory, Type; unsigned LineNo; - if (getLocationInfo(V, DisplayName, Type, LineNo, File, Directory)) { - Out << "; "; - WriteAsOperand(Out, V, false, 0); - Out << " is variable " << DisplayName + + 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"; - } + + if (PrintDirectory) + Out << Directory << "/"; + + Out << File << ":" << LineNo << "\n"; } -void PrintDbgInfo::printStopPoint(const DbgStopPointInst *DSI) -{ +void PrintDbgInfo::printStopPoint(const DbgStopPointInst *DSI) { if (PrintDirectory) { std::string dir; - GetConstantStringInfo(DSI->getDirectory(), dir); + GetConstantStringInfo(DSI->getDirectory(), dir); Out << dir << "/"; } + std::string file; GetConstantStringInfo(DSI->getFileName(), file); Out << file << ":" << DSI->getLine(); - if (unsigned Col = DSI->getColumn()) { + + if (unsigned Col = DSI->getColumn()) Out << ":" << Col; - } } -void PrintDbgInfo::printFuncStart(const DbgFuncStartInst *FS) -{ +void PrintDbgInfo::printFuncStart(const DbgFuncStartInst *FS) { DISubprogram Subprogram(cast(FS->getSubprogram())); std::string Res1, Res2; - Out << ";fully qualified function name: " << Subprogram.getDisplayName(Res1) - << " return type: " << Subprogram.getType().getName(Res2) - << " at line " << Subprogram.getLineNumber() - << "\n\n"; + Out << "; fully qualified function name: " << Subprogram.getDisplayName(Res1) + << " return type: " << Subprogram.getType().getName(Res2) + << " at line " << Subprogram.getLineNumber() + << "\n\n"; } -bool PrintDbgInfo::runOnFunction(Function &F) -{ +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; + const DbgStopPointInst *DSI = findBBStopPoint(BB); Out << BB->getName(); Out << ":"; + if (DSI) { Out << "; ("; printStopPoint(DSI); Out << ")"; } + Out << "\n"; + // A dbgstoppoint's information is valid until we encounter a new one. const DbgStopPointInst *LastDSP = DSI; - bool printed = DSI != 0; - for (BasicBlock::const_iterator i = BB->begin(), e = BB->end(); i != e; ++i) { + bool Printed = DSI != 0; + for (BasicBlock::const_iterator i = BB->begin(), e = BB->end(); + i != e; ++i) { if (isa(i)) { if ((DSI = dyn_cast(i))) { - if (DSI->getContext() == LastDSP->getContext() && DSI->getLineValue() == LastDSP->getLineValue() && - DSI->getColumnValue() == LastDSP->getColumnValue()) { + DSI->getColumnValue() == LastDSP->getColumnValue()) // Don't print same location twice. continue; - } - LastDSP = cast(i); - // Don't print consecutive stoppoints, use a flag - // to know which one we printed. - printed = false; + LastDSP = cast(i); + + // Don't print consecutive stoppoints, use a flag to know which one we + // printed. + Printed = false; } else if (const DbgFuncStartInst *FS = dyn_cast(i)) { printFuncStart(FS); } } else { - if (!printed && LastDSP) { + if (!Printed && LastDSP) { Out << "; "; printStopPoint(LastDSP); Out << "\n"; - printed = true; + Printed = true; } + Out << *i; printVariableDeclaration(i); + if (const User *U = dyn_cast(i)) { - for(unsigned i=0;igetNumOperands();i++) { + for(unsigned i=0;igetNumOperands();i++) printVariableDeclaration(U->getOperand(i)); - } } } } } + return false; }