本文整理汇总了C++中VirtualRegister::hasStackSlot方法的典型用法代码示例。如果您正苦于以下问题：C++ VirtualRegister::hasStackSlot方法的具体用法？C++ VirtualRegister::hasStackSlot怎么用？C++ VirtualRegister::hasStackSlot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VirtualRegister的用法示例。
在下文中一共展示了VirtualRegister::hasStackSlot方法的2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: otherHalfOfNunbox
bool
GreedyAllocator::informSafepoint(LSafepoint *safepoint)
{
for (InlineListIterator<VirtualRegister> iter = liveSlots_.begin();
iter != liveSlots_.end();
iter++)
{
VirtualRegister *vr = *iter;
if (vr->type() == LDefinition::OBJECT || vr->type() == LDefinition::BOX) {
if (!safepoint->addGcSlot(vr->stackSlot()))
return false;
continue;
}
#ifdef JS_NUNBOX32
if (!IsNunbox(vr->type()))
continue;
VirtualRegister *other = otherHalfOfNunbox(vr);
// Only bother if both halves are spilled.
if (vr->hasStackSlot() && other->hasStackSlot()) {
uint32 slot = BaseOfNunboxSlot(vr->type(), vr->stackSlot());
if (!safepoint->addValueSlot(slot))
return false;
}
#endif
}
return true;
}示例2: getVirtualRegister
bool
GreedyAllocator::spillDefinition(LDefinition *def)
{
if (def->policy() == LDefinition::PASSTHROUGH)
return true;
VirtualRegister *vr = getVirtualRegister(def);
const LAllocation *output = def->output();
if (output->isRegister()) {
if (vr->hasRegister()) {
// If the returned register is different from the output
// register, a move is required.
AnyRegister out = GetAllocatedRegister(output);
if (out != vr->reg()) {
if (!spill(*output, vr->reg()))
return false;
}
}
// Spill to the stack if needed.
if (vr->hasStackSlot() && vr->backingStackUsed()) {
if (!spill(*output, vr->backingStack()))
return false;
}
} else if (vr->hasRegister()) {
// This definition has a canonical spill location, so make sure to
// load it to the resulting register, if any.
JS_ASSERT(!vr->hasStackSlot());
JS_ASSERT(vr->hasBackingStack());
if (!spill(*output, vr->reg()))
return false;
}
return true;
}