-//===- DbgInfoPrinter.cpp - Print debug info in a human readable form -----==//
+//===- DbgInfoPrinter.cpp - Print debug info in a human readable form ------==//
//
// The LLVM Compiler Infrastructure
//
//
// 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/Metadata.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<bool>
-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()) {}
-
- virtual bool runOnFunction(Function &F);
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- }
-
- };
- char PrintDbgInfo::ID = 0;
- static RegisterPass<PrintDbgInfo> X("print-dbginfo",
- "Print debug info in human readable form");
+ class PrintDbgInfo : public FunctionPass {
+ raw_ostream &Out;
+ 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<PrintDbgInfo> X("print-dbginfo",
+ "Print debug info in human readable form");
}
FunctionPass *llvm::createDbgInfoPrinterPass() { return new PrintDbgInfo(); }
-void PrintDbgInfo::printVariableDeclaration(const Value *V)
-{
- if(const DbgDeclareInst* DDI = findDbgDeclare(V)) {
- DIVariable Var(cast<GlobalVariable>(DDI->getVariable()));
- Out << "; variable " << Var.getName()
- << " of type " << Var.getType().getName()
- << " at line " << Var.getLineNumber() << "\n";
- }
-}
+void PrintDbgInfo::printVariableDeclaration(const Value *V) {
+ std::string DisplayName, File, Directory, Type;
+ unsigned LineNo;
-void PrintDbgInfo::printStopPoint(const DbgStopPointInst *DSI)
-{
- if (PrintDirectory) {
- std::string dir;
- GetConstantStringInfo(DSI->getDirectory(), dir);
- Out << dir << "/";
- }
- std::string file;
- GetConstantStringInfo(DSI->getFileName(), file);
- Out << file << ":" << DSI->getLine();
- if (unsigned Col = DSI->getColumn()) {
- Out << ":" << Col;
- }
-}
+ if (!getLocationInfo(V, DisplayName, Type, LineNo, File, Directory))
+ return;
-void PrintDbgInfo::printFuncStart(const DbgFuncStartInst *FS)
-{
- DISubprogram Subprogram(cast<GlobalVariable>(FS->getSubprogram()));
- Out << ";fully qualified function name: " << Subprogram.getDisplayName()
- << " return type: " << Subprogram.getType().getName()
- << " at line " << Subprogram.getLineNumber()
- << "\n\n";
+ Out << "; ";
+ WriteAsOperand(Out, V, false, 0);
+ Out << " is variable " << DisplayName
+ << " of type " << Type << " declared at ";
+
+ if (PrintDirectory)
+ Out << Directory << "/";
+
+ Out << File << ":" << LineNo << "\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) {
- if (isa<DbgInfoIntrinsic>(i)) {
- if ((DSI = dyn_cast<DbgStopPointInst>(i))) {
-
- if (DSI->getContext() == LastDSP->getContext() &&
- DSI->getLineValue() == LastDSP->getLineValue() &&
- DSI->getColumnValue() == LastDSP->getColumnValue()) {
- // Don't print same location twice.
- continue;
- }
- LastDSP = cast<DbgStopPointInst>(i);
- // Don't print consecutive stoppoints, use a flag
- // to know which one we printed.
- printed = false;
-
- } else if (const DbgFuncStartInst *FS = dyn_cast<DbgFuncStartInst>(i)) {
- printFuncStart(FS);
- }
- } else {
- if (!printed && LastDSP) {
- Out << "; ";
- printStopPoint(LastDSP);
- Out << "\n";
- printed = true;
- }
- Out << *i;
+
+ for (BasicBlock::const_iterator i = BB->begin(), e = BB->end();
+ i != e; ++i) {
+
printVariableDeclaration(i);
- }
+
+ if (const User *U = dyn_cast<User>(i)) {
+ for(unsigned i=0;i<U->getNumOperands();i++)
+ printVariableDeclaration(U->getOperand(i));
+ }
}
}
return false;
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