本文整理汇总了C++中SymbolReaper::getLocationContext方法的典型用法代码示例。如果您正苦于以下问题：C++ SymbolReaper::getLocationContext方法的具体用法？C++ SymbolReaper::getLocationContext怎么用？C++ SymbolReaper::getLocationContext使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SymbolReaper的用法示例。
在下文中一共展示了SymbolReaper::getLocationContext方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: cb
Environment
EnvironmentManager::RemoveDeadBindings(Environment Env,
SymbolReaper &SymReaper,
const GRState *ST,
llvm::SmallVectorImpl<const MemRegion*> &DRoots) {
CFG &C = *SymReaper.getLocationContext()->getCFG();
// We construct a new Environment object entirely, as this is cheaper than
// individually removing all the subexpression bindings (which will greatly
// outnumber block-level expression bindings).
Environment NewEnv = getInitialEnvironment();
// Iterate over the block-expr bindings.
for (Environment::iterator I = Env.begin(), E = Env.end();
I != E; ++I) {
const Stmt *BlkExpr = I.getKey();
const SVal &X = I.getData();
// Block-level expressions in callers are assumed always live.
if (isBlockExprInCallers(BlkExpr, SymReaper.getLocationContext())) {
NewEnv.ExprBindings = F.Add(NewEnv.ExprBindings, BlkExpr, X);
if (isa<loc::MemRegionVal>(X)) {
const MemRegion* R = cast<loc::MemRegionVal>(X).getRegion();
DRoots.push_back(R);
}
// Mark all symbols in the block expr's value live.
MarkLiveCallback cb(SymReaper);
ST->scanReachableSymbols(X, cb);
continue;
}
// Not a block-level expression?
if (!C.isBlkExpr(BlkExpr))
continue;
if (SymReaper.isLive(BlkExpr)) {
// Copy the binding to the new map.
NewEnv.ExprBindings = F.Add(NewEnv.ExprBindings, BlkExpr, X);
// If the block expr's value is a memory region, then mark that region.
if (isa<loc::MemRegionVal>(X)) {
const MemRegion* R = cast<loc::MemRegionVal>(X).getRegion();
DRoots.push_back(R);
}
// Mark all symbols in the block expr's value live.
MarkLiveCallback cb(SymReaper);
ST->scanReachableSymbols(X, cb);
continue;
}
// Otherwise the expression is dead with a couple exceptions.
// Do not misclean LogicalExpr or ConditionalOperator. It is dead at the
// beginning of itself, but we need its UndefinedVal to determine its
// SVal.
if (X.isUndef() && cast<UndefinedVal>(X).getData())
NewEnv.ExprBindings = F.Add(NewEnv.ExprBindings, BlkExpr, X);
}
return NewEnv;
}