1//===- DebugLocStream.cpp - DWARF debug_loc stream --------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#include "DebugLocStream.h" 11#include "DwarfDebug.h" 12#include "llvm/CodeGen/AsmPrinter.h" 13 14using namespace llvm; 15 16bool DebugLocStream::finalizeList(AsmPrinter &Asm) { 17 if (Lists.back().EntryOffset == Entries.size()) { 18 // Empty list. Delete it. 19 Lists.pop_back(); 20 return false; 21 } 22 23 // Real list. Generate a label for it. 24 Lists.back().Label = Asm.createTempSymbol("debug_loc"); 25 return true; 26} 27 28void DebugLocStream::finalizeEntry() { 29 if (Entries.back().ByteOffset != DWARFBytes.size()) 30 return; 31 32 // The last entry was empty. Delete it. 33 Comments.erase(Comments.begin() + Entries.back().CommentOffset, 34 Comments.end()); 35 Entries.pop_back(); 36 37 assert(Lists.back().EntryOffset <= Entries.size() && 38 "Popped off more entries than are in the list"); 39} 40 41DebugLocStream::ListBuilder::~ListBuilder() { 42 if (!Locs.finalizeList(Asm)) 43 return; 44 V.initializeDbgValue(&MI); 45 V.setDebugLocListIndex(ListIndex); 46} 47