本文整理汇总了C++中DominanceInfo::properlyDominates方法的典型用法代码示例。如果您正苦于以下问题：C++ DominanceInfo::properlyDominates方法的具体用法？C++ DominanceInfo::properlyDominates怎么用？C++ DominanceInfo::properlyDominates使用的例子？那么, 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DominanceInfo的用法示例。
在下文中一共展示了DominanceInfo::properlyDominates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: tryPromoteAlloc
bool StackPromoter::tryPromoteAlloc(AllocRefInst *ARI) {
SILInstruction *AllocInsertionPoint = nullptr;
SILInstruction *DeallocInsertionPoint = nullptr;
if (!canPromoteAlloc(ARI, AllocInsertionPoint, DeallocInsertionPoint))
return false;
if (AllocInsertionPoint) {
// Check if any operands of the alloc_ref prevents us from moving the
// instruction.
for (const Operand &Op : ARI->getAllOperands()) {
if (!DT->properlyDominates(Op.get(), AllocInsertionPoint))
return false;
}
}
DEBUG(llvm::dbgs() << "Promoted " << *ARI);
DEBUG(llvm::dbgs() << " in " << ARI->getFunction()->getName() << '\n');
NumStackPromoted++;
SILBuilder B(DeallocInsertionPoint);
// It's an object allocation. We set the [stack] attribute in the alloc_ref.
ARI->setStackAllocatable();
if (AllocInsertionPoint)
ARI->moveBefore(AllocInsertionPoint);
/// And create a dealloc_ref [stack] at the end of the object's lifetime.
B.createDeallocRef(ARI->getLoc(), ARI, true);
return true;
}