本文整理汇总了C++中LabelList::emplace_back方法的典型用法代码示例。如果您正苦于以下问题：C++ LabelList::emplace_back方法的具体用法？C++ LabelList::emplace_back怎么用？C++ LabelList::emplace_back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LabelList的用法示例。
在下文中一共展示了LabelList::emplace_back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: if
static bool
labelify(Shader &shader, LabelList &labels)
{
std::stack<shadir::CfInstruction *> loopStarts; // LOOP_START*
std::stack<shadir::CfInstruction *> pushes; // PUSH
std::stack<shadir::CfInstruction *> pops; // POP*
std::stack<shadir::AluInstruction *> predSets; // PRED_SET*
// Iterate over the code and find matching code patterns to labelify
for (auto itr = shader.code.begin(); itr != shader.code.end(); ++itr) {
auto &ins = *itr;
if (ins->insType == shadir::Instruction::ControlFlow) {
auto cfIns = reinterpret_cast<shadir::CfInstruction*>(ins.get());
if (cfIns->id == latte::cf::inst::LOOP_START
|| cfIns->id == latte::cf::inst::LOOP_START_DX10
|| cfIns->id == latte::cf::inst::LOOP_START_NO_AL) {
// Found a loop start, find a matching loop_end in the correct stack
loopStarts.push(cfIns);
} else if (cfIns->id == latte::cf::inst::LOOP_END) {
assert(loopStarts.size());
// Create a LoopStart label
auto labelStart = new Label { Label::LoopStart, loopStarts.top() };
loopStarts.pop();
labels.emplace_back(labelStart);
// Create a LoopEnd label
auto labelEnd = new Label { Label::LoopEnd, ins.get() };
labels.emplace_back(labelEnd);
// Link the start and end labels
labelEnd->linkedLabel = labelStart;
labelStart->linkedLabel = labelEnd;
} else if (cfIns->id == latte::cf::inst::LOOP_CONTINUE || cfIns->id == latte::cf::inst::LOOP_BREAK) {
assert(loopStarts.size());
assert(predSets.size());
// Create a ConditionalStart label for the last PRED_SET
auto labelStart = new Label { Label::ConditionalStart, predSets.top() };
predSets.pop();
labels.emplace_back(labelStart);
// Create a ConditionalEnd label for after the BREAK/CONTINUE instruction
auto labelEnd = new Label { Label::ConditionalEnd, (itr + 1)->get() };
labels.emplace_back(labelEnd);
// Link the start and end labels
labelEnd->linkedLabel = labelStart;
labelStart->linkedLabel = labelEnd;
} else if (cfIns->id == latte::cf::inst::JUMP) {
assert(predSets.size());
assert(pushes.size());
// Find the end of the jump
auto jumpEnd = std::find_if(itr, shader.code.end(),
[cfIns](auto &ins) {
return ins->cfPC == cfIns->addr;
});
assert(jumpEnd != shader.code.end());
// Check if this jump has an ELSE branch
auto jumpElse = shader.code.end();
if ((*jumpEnd)->insType == shadir::Instruction::ControlFlow) {
auto jumpEndCfIns = reinterpret_cast<shadir::CfInstruction*>(jumpEnd->get());
if (jumpEndCfIns->id == latte::cf::inst::ELSE) {
jumpElse = jumpEnd;
// Find the real end of the jump
jumpEnd = std::find_if(jumpElse, shader.code.end(),
[jumpEndCfIns](auto &ins) {
return ins->cfPC == jumpEndCfIns->addr;
});
assert(jumpEnd != shader.code.end());
}
}
// Create a conditional start label
auto labelStart = new Label { Label::ConditionalStart, predSets.top() };
predSets.pop();
labels.emplace_back(labelStart);
// Create a conditional else label, if needed
if (jumpElse != shader.code.end()) {
auto labelElse = new Label { Label::ConditionalElse, jumpElse->get() };
labelElse->linkedLabel = labelStart;
labels.emplace_back(labelElse);
}
// Create a conditional end label
auto labelEnd = new Label { Label::ConditionalEnd, jumpEnd->get() };
labels.emplace_back(labelEnd);
// Eliminate our JUMP instruction
labels.emplace_back(new Label { Label::Eliminated, ins.get() });
//.........这里部分代码省略.........