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MCModule's ctor had to be moved out of line so the definition of MCFunction was available. (ctor requires the dtor of members (in case the ctor throws) which required access to the dtor of MCFunction) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206244 91177308-0d34-0410-b5e6-96231b3b80d8
143 lines
4.6 KiB
C++
143 lines
4.6 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/ADT/STLExtras.h"
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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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static bool AtomCompInv(uint64_t Addr, const MCAtom *R) {
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return Addr < R->getEndAddr();
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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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// FIXME: special case NewBegin == Atom->Begin
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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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assert((NewI == atom_end() || (*NewI)->getBeginAddr() > Atom->End)
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&& "Offset range already occupied!");
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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 nullptr;
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}
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MCAtom *MCModule::findAtomContaining(uint64_t Addr) {
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return const_cast<MCAtom*>(
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const_cast<const MCModule *>(this)->findAtomContaining(Addr));
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}
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const MCAtom *MCModule::findFirstAtomAfter(uint64_t Addr) const {
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AtomListTy::const_iterator I = std::upper_bound(atom_begin(), atom_end(),
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Addr, AtomCompInv);
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if (I != atom_end())
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return *I;
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return nullptr;
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}
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MCAtom *MCModule::findFirstAtomAfter(uint64_t Addr) {
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return const_cast<MCAtom*>(
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const_cast<const MCModule *>(this)->findFirstAtomAfter(Addr));
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}
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MCFunction *MCModule::createFunction(StringRef Name) {
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std::unique_ptr<MCFunction> MCF(new MCFunction(Name, this));
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Functions.push_back(std::move(MCF));
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return Functions.back().get();
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}
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static bool CompBBToAtom(MCBasicBlock *BB, const MCTextAtom *Atom) {
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return BB->getInsts() < Atom;
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}
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void MCModule::splitBasicBlocksForAtom(const MCTextAtom *TA,
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const MCTextAtom *NewTA) {
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BBsByAtomTy::iterator
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I = std::lower_bound(BBsByAtom.begin(), BBsByAtom.end(),
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TA, CompBBToAtom);
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for (; I != BBsByAtom.end() && (*I)->getInsts() == TA; ++I) {
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MCBasicBlock *BB = *I;
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MCBasicBlock *NewBB = &BB->getParent()->createBlock(*NewTA);
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BB->splitBasicBlock(NewBB);
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}
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}
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void MCModule::trackBBForAtom(const MCTextAtom *Atom, MCBasicBlock *BB) {
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assert(Atom == BB->getInsts() && "Text atom doesn't back the basic block!");
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BBsByAtomTy::iterator I = std::lower_bound(BBsByAtom.begin(),
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BBsByAtom.end(),
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Atom, CompBBToAtom);
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for (; I != BBsByAtom.end() && (*I)->getInsts() == Atom; ++I)
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if (*I == BB)
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return;
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BBsByAtom.insert(I, BB);
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}
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MCModule::MCModule() : Entrypoint(0) { }
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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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}
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