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35b2a7a545
In these builds, the asserts() are completely compiled out of the code leaving "End" unused. Directly accessing it, should not have a performance impact, as it is just a data member. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182634 91177308-0d34-0410-b5e6-96231b3b80d8
98 lines
3.1 KiB
C++
98 lines
3.1 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/MCModule.h"
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#include "llvm/MC/MCAtom.h"
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#include "llvm/MC/MCFunction.h"
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#include <algorithm>
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using namespace llvm;
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static bool AtomComp(const MCAtom *L, uint64_t Addr) {
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return L->getEndAddr() < Addr;
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}
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void MCModule::map(MCAtom *NewAtom) {
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uint64_t Begin = NewAtom->Begin;
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assert(Begin < NewAtom->End && "Creating MCAtom with endpoints reversed?");
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// Check for atoms already covering this range.
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AtomListTy::iterator I = std::lower_bound(atom_begin(), atom_end(),
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Begin, AtomComp);
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assert((I == atom_end() || (*I)->getBeginAddr() > NewAtom->End)
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&& "Offset range already occupied!");
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// Insert the new atom to the list.
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Atoms.insert(I, NewAtom);
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}
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MCTextAtom *MCModule::createTextAtom(uint64_t Begin, uint64_t End) {
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MCTextAtom *NewAtom = new MCTextAtom(this, Begin, End);
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map(NewAtom);
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return NewAtom;
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}
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MCDataAtom *MCModule::createDataAtom(uint64_t Begin, uint64_t End) {
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MCDataAtom *NewAtom = new MCDataAtom(this, Begin, End);
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map(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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AtomListTy::iterator I = std::lower_bound(atom_begin(), atom_end(),
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Atom->Begin, AtomComp);
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assert(I != atom_end() && "Atom offset not found in module!");
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assert(*I == Atom && "Previous atom mapping was invalid!");
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Atoms.erase(I);
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// Insert the new mapping.
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AtomListTy::iterator NewI = std::lower_bound(atom_begin(), atom_end(),
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NewBegin, AtomComp);
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Atoms.insert(NewI, 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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const MCAtom *MCModule::findAtomContaining(uint64_t Addr) const {
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AtomListTy::const_iterator I = std::lower_bound(atom_begin(), atom_end(),
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Addr, AtomComp);
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if (I != atom_end() && (*I)->getBeginAddr() <= Addr)
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return *I;
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return 0;
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}
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MCAtom *MCModule::findAtomContaining(uint64_t Addr) {
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AtomListTy::iterator I = std::lower_bound(atom_begin(), atom_end(),
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Addr, AtomComp);
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if (I != atom_end() && (*I)->getBeginAddr() <= Addr)
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return *I;
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return 0;
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}
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MCFunction *MCModule::createFunction(const StringRef &Name) {
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Functions.push_back(new MCFunction(Name));
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return Functions.back();
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}
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MCModule::~MCModule() {
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for (AtomListTy::iterator AI = atom_begin(),
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AE = atom_end();
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AI != AE; ++AI)
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delete *AI;
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for (FunctionListTy::iterator FI = func_begin(),
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FE = func_end();
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FI != FE; ++FI)
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delete *FI;
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}
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