C++ (Cpp) LexicalScope::setDFSOut Examples

Example #1

File: LexicalScopes.cpp Project: 32bitmicro/llvm

/// constructScopeNest
void LexicalScopes::constructScopeNest(LexicalScope *Scope) {
  assert (Scope && "Unable to calculate scop edominance graph!");
  SmallVector<LexicalScope *, 4> WorkStack;
  WorkStack.push_back(Scope);
  unsigned Counter = 0;
  while (!WorkStack.empty()) {
    LexicalScope *WS = WorkStack.back();
    const SmallVector<LexicalScope *, 4> &Children = WS->getChildren();
    bool visitedChildren = false;
    for (SmallVector<LexicalScope *, 4>::const_iterator SI = Children.begin(),
           SE = Children.end(); SI != SE; ++SI) {
      LexicalScope *ChildScope = *SI;
      if (!ChildScope->getDFSOut()) {
        WorkStack.push_back(ChildScope);
        visitedChildren = true;
        ChildScope->setDFSIn(++Counter);
        break;
      }
    }
    if (!visitedChildren) {
      WorkStack.pop_back();
      WS->setDFSOut(++Counter);
    }
  }
}

Example #2

File: LexicalScopes.cpp Project: AstroVPK/LLVM-4.0.0

/// constructScopeNest
void LexicalScopes::constructScopeNest(LexicalScope *Scope) {
  assert(Scope && "Unable to calculate scope dominance graph!");
  SmallVector<LexicalScope *, 4> WorkStack;
  WorkStack.push_back(Scope);
  unsigned Counter = 0;
  while (!WorkStack.empty()) {
    LexicalScope *WS = WorkStack.back();
    const SmallVectorImpl<LexicalScope *> &Children = WS->getChildren();
    bool visitedChildren = false;
    for (auto &ChildScope : Children)
      if (!ChildScope->getDFSOut()) {
        WorkStack.push_back(ChildScope);
        visitedChildren = true;
        ChildScope->setDFSIn(++Counter);
        break;
      }
    if (!visitedChildren) {
      WorkStack.pop_back();
      WS->setDFSOut(++Counter);
    }
  }
}