本文整理汇总了C++中DILocation::getDiscriminator方法的典型用法代码示例。如果您正苦于以下问题：C++ DILocation::getDiscriminator方法的具体用法？C++ DILocation::getDiscriminator怎么用？C++ DILocation::getDiscriminator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DILocation的用法示例。
在下文中一共展示了DILocation::getDiscriminator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: getInstWeight
/// \brief Get the weight for an instruction.
///
/// The "weight" of an instruction \p Inst is the number of samples
/// collected on that instruction at runtime. To retrieve it, we
/// need to compute the line number of \p Inst relative to the start of its
/// function. We use HeaderLineno to compute the offset. We then
/// look up the samples collected for \p Inst using BodySamples.
///
/// \param Inst Instruction to query.
///
/// \returns The profiled weight of I.
unsigned SampleProfileLoader::getInstWeight(Instruction &Inst) {
DebugLoc DLoc = Inst.getDebugLoc();
if (!DLoc)
return 0;
unsigned Lineno = DLoc.getLine();
if (Lineno < HeaderLineno)
return 0;
DILocation DIL = DLoc.get();
int LOffset = Lineno - HeaderLineno;
unsigned Discriminator = DIL.getDiscriminator();
unsigned Weight = Samples->samplesAt(LOffset, Discriminator);
DEBUG(dbgs() << " " << Lineno << "." << Discriminator << ":" << Inst
<< " (line offset: " << LOffset << "." << Discriminator
<< " - weight: " << Weight << ")\n");
return Weight;
}