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d04a8d4b33
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
225 lines
6.3 KiB
C++
225 lines
6.3 KiB
C++
//===- DbgInfoPrinter.cpp - Print debug info in a human readable form ------==//
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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 file implements a pass that prints instructions, and associated debug
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// info:
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//
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// - source/line/col information
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// - original variable name
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// - original type name
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/Passes.h"
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#include "llvm/Assembly/Writer.h"
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#include "llvm/DebugInfo.h"
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#include "llvm/Function.h"
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#include "llvm/IntrinsicInst.h"
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#include "llvm/Metadata.h"
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#include "llvm/Module.h"
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#include "llvm/Pass.h"
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#include "llvm/Support/CFG.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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static cl::opt<bool>
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PrintDirectory("print-fullpath",
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cl::desc("Print fullpath when printing debug info"),
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cl::Hidden);
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namespace {
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class PrintDbgInfo : public FunctionPass {
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raw_ostream &Out;
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void printVariableDeclaration(const Value *V);
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public:
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static char ID; // Pass identification
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PrintDbgInfo() : FunctionPass(ID), Out(errs()) {
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initializePrintDbgInfoPass(*PassRegistry::getPassRegistry());
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}
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virtual bool runOnFunction(Function &F);
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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};
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char PrintDbgInfo::ID = 0;
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}
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INITIALIZE_PASS(PrintDbgInfo, "print-dbginfo",
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"Print debug info in human readable form", false, false)
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FunctionPass *llvm::createDbgInfoPrinterPass() { return new PrintDbgInfo(); }
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/// Find the debug info descriptor corresponding to this global variable.
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static Value *findDbgGlobalDeclare(GlobalVariable *V) {
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const Module *M = V->getParent();
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NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.gv");
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if (!NMD)
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return 0;
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for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
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DIDescriptor DIG(cast<MDNode>(NMD->getOperand(i)));
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if (!DIG.isGlobalVariable())
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continue;
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if (DIGlobalVariable(DIG).getGlobal() == V)
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return DIG;
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}
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return 0;
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}
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/// Find the debug info descriptor corresponding to this function.
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static Value *findDbgSubprogramDeclare(Function *V) {
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const Module *M = V->getParent();
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NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.sp");
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if (!NMD)
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return 0;
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for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
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DIDescriptor DIG(cast<MDNode>(NMD->getOperand(i)));
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if (!DIG.isSubprogram())
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continue;
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if (DISubprogram(DIG).getFunction() == V)
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return DIG;
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}
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return 0;
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}
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/// Finds the llvm.dbg.declare intrinsic corresponding to this value if any.
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/// It looks through pointer casts too.
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static const DbgDeclareInst *findDbgDeclare(const Value *V) {
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V = V->stripPointerCasts();
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if (!isa<Instruction>(V) && !isa<Argument>(V))
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return 0;
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const Function *F = NULL;
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if (const Instruction *I = dyn_cast<Instruction>(V))
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F = I->getParent()->getParent();
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else if (const Argument *A = dyn_cast<Argument>(V))
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F = A->getParent();
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for (Function::const_iterator FI = F->begin(), FE = F->end(); FI != FE; ++FI)
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for (BasicBlock::const_iterator BI = (*FI).begin(), BE = (*FI).end();
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BI != BE; ++BI)
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if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
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if (DDI->getAddress() == V)
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return DDI;
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return 0;
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}
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static bool getLocationInfo(const Value *V, std::string &DisplayName,
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std::string &Type, unsigned &LineNo,
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std::string &File, std::string &Dir) {
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DICompileUnit Unit;
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DIType TypeD;
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if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) {
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Value *DIGV = findDbgGlobalDeclare(GV);
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if (!DIGV) return false;
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DIGlobalVariable Var(cast<MDNode>(DIGV));
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StringRef D = Var.getDisplayName();
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if (!D.empty())
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DisplayName = D;
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LineNo = Var.getLineNumber();
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Unit = Var.getCompileUnit();
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TypeD = Var.getType();
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} else if (Function *F = dyn_cast<Function>(const_cast<Value*>(V))){
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Value *DIF = findDbgSubprogramDeclare(F);
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if (!DIF) return false;
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DISubprogram Var(cast<MDNode>(DIF));
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StringRef D = Var.getDisplayName();
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if (!D.empty())
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DisplayName = D;
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LineNo = Var.getLineNumber();
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Unit = Var.getCompileUnit();
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TypeD = Var.getType();
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} else {
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const DbgDeclareInst *DDI = findDbgDeclare(V);
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if (!DDI) return false;
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DIVariable Var(cast<MDNode>(DDI->getVariable()));
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StringRef D = Var.getName();
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if (!D.empty())
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DisplayName = D;
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LineNo = Var.getLineNumber();
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Unit = Var.getCompileUnit();
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TypeD = Var.getType();
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}
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StringRef T = TypeD.getName();
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if (!T.empty())
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Type = T;
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StringRef F = Unit.getFilename();
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if (!F.empty())
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File = F;
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StringRef D = Unit.getDirectory();
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if (!D.empty())
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Dir = D;
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return true;
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}
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void PrintDbgInfo::printVariableDeclaration(const Value *V) {
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std::string DisplayName, File, Directory, Type;
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unsigned LineNo = 0;
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if (!getLocationInfo(V, DisplayName, Type, LineNo, File, Directory))
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return;
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Out << "; ";
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WriteAsOperand(Out, V, false, 0);
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if (isa<Function>(V))
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Out << " is function " << DisplayName
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<< " of type " << Type << " declared at ";
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else
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Out << " is variable " << DisplayName
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<< " of type " << Type << " declared at ";
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if (PrintDirectory)
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Out << Directory << "/";
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Out << File << ":" << LineNo << "\n";
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}
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bool PrintDbgInfo::runOnFunction(Function &F) {
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if (F.isDeclaration())
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return false;
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Out << "function " << F.getName() << "\n\n";
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for (Function::iterator I = F.begin(), E = F.end(); I != E; ++I) {
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BasicBlock *BB = I;
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if (I != F.begin() && (pred_begin(BB) == pred_end(BB)))
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// Skip dead blocks.
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continue;
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Out << BB->getName();
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Out << ":";
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Out << "\n";
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for (BasicBlock::const_iterator i = BB->begin(), e = BB->end();
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i != e; ++i) {
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printVariableDeclaration(i);
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if (const User *U = dyn_cast<User>(i)) {
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for(unsigned i=0;i<U->getNumOperands();i++)
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printVariableDeclaration(U->getOperand(i));
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}
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}
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}
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return false;
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}
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