forked from OSchip/llvm-project
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
//===- lib/MC/MCModule.cpp - MCModule implementation ----------------------===//
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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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#include "llvm/MC/MCAtom.h"
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#include "llvm/MC/MCModule.h"
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using namespace llvm;
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MCAtom *MCModule::createAtom(MCAtom::AtomType Type,
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uint64_t Begin, uint64_t End) {
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assert(Begin < End && "Creating MCAtom with endpoints reversed?");
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// Check for atoms already covering this range.
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IntervalMap<uint64_t, MCAtom*>::iterator I = OffsetMap.find(Begin);
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assert((!I.valid() || I.start() < End) && "Offset range already occupied!");
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// Create the new atom and add it to our maps.
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MCAtom *NewAtom = new MCAtom(Type, this, Begin, End);
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AtomAllocationTracker.insert(NewAtom);
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OffsetMap.insert(Begin, End, NewAtom);
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return NewAtom;
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}
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// remap - Update the interval mapping for an atom.
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void MCModule::remap(MCAtom *Atom, uint64_t NewBegin, uint64_t NewEnd) {
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// Find and erase the old mapping.
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IntervalMap<uint64_t, MCAtom*>::iterator I = OffsetMap.find(Atom->Begin);
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assert(I.valid() && "Atom offset not found in module!");
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assert(*I == Atom && "Previous atom mapping was invalid!");
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I.erase();
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// Insert the new mapping.
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OffsetMap.insert(NewBegin, NewEnd, Atom);
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// Update the atom internal bounds.
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Atom->Begin = NewBegin;
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Atom->End = NewEnd;
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}
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