1 //===- lib/MC/MCModule.cpp - MCModule implementation --------------------------===// 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 "llvm/MC/MCAtom.h" 11 #include "llvm/MC/MCModule.h" 12 13 using namespace llvm; 14 15 MCAtom *MCModule::createAtom(MCAtom::AtomType Type, 16 uint64_t Begin, uint64_t End) { 17 assert(Begin < End && "Creating MCAtom with endpoints reversed?"); 18 19 // Check for atoms already covering this range. 20 IntervalMap<uint64_t, MCAtom*>::iterator I = OffsetMap.find(Begin); 21 assert((!I.valid() || I.start() < End) && "Offset range already occupied!"); 22 23 // Create the new atom and add it to our maps. 24 MCAtom *NewAtom = new MCAtom(Type, this, Begin, End); 25 AtomAllocationTracker.insert(NewAtom); 26 OffsetMap.insert(Begin, End, NewAtom); 27 return NewAtom; 28 } 29 30 // remap - Update the interval mapping for an atom. 31 void MCModule::remap(MCAtom *Atom, uint64_t NewBegin, uint64_t NewEnd) { 32 // Find and erase the old mapping. 33 IntervalMap<uint64_t, MCAtom*>::iterator I = OffsetMap.find(Atom->Begin); 34 assert(I.valid() && "Atom offset not found in module!"); 35 assert(*I == Atom && "Previous atom mapping was invalid!"); 36 I.erase(); 37 38 // Insert the new mapping. 39 OffsetMap.insert(NewBegin, NewEnd, Atom); 40 41 // Update the atom internal bounds. 42 Atom->Begin = NewBegin; 43 Atom->End = NewEnd; 44 } 45 46
