/// \brief Flag indicating whether the profile input loaded successfully.
bool ProfileIsValid;
};
-}
+} // namespace
/// \brief Print the weight of edge \p E on stream \p OS.
///
/// \returns The profiled weight of I.
unsigned SampleProfileLoader::getInstWeight(Instruction &Inst) {
DebugLoc DLoc = Inst.getDebugLoc();
- if (DLoc.isUnknown())
+ if (!DLoc)
return 0;
unsigned Lineno = DLoc.getLine();
if (Lineno < HeaderLineno)
return 0;
- DILocation DIL(DLoc.getAsMDNode(*Ctx));
+ const DILocation *DIL = DLoc;
int LOffset = Lineno - HeaderLineno;
- unsigned Discriminator = DIL.getDiscriminator();
+ unsigned Discriminator = DIL->getDiscriminator();
unsigned Weight = Samples->samplesAt(LOffset, Discriminator);
DEBUG(dbgs() << " " << Lineno << "." << Discriminator << ":" << Inst
<< " (line offset: " << LOffset << "." << Discriminator
/// \brief Find equivalence classes for the given block.
///
/// This finds all the blocks that are guaranteed to execute the same
-/// number of times as \p BB1. To do this, it traverses all the the
+/// number of times as \p BB1. To do this, it traverses all the
/// descendants of \p BB1 in the dominator or post-dominator tree.
///
/// A block BB2 will be in the same equivalence class as \p BB1 if
bool Changed = true;
unsigned i = 0;
+ // Add an entry count to the function using the samples gathered
+ // at the function entry.
+ F.setEntryCount(Samples->getHeadSamples());
+
// Before propagation starts, build, for each block, a list of
// unique predecessors and successors. This is necessary to handle
// identical edges in multiway branches. Since we visit all blocks and all
/// \returns the line number where \p F is defined. If it returns 0,
/// it means that there is no debug information available for \p F.
unsigned SampleProfileLoader::getFunctionLoc(Function &F) {
- DISubprogram S = getDISubprogram(&F);
- if (S.isSubprogram())
- return S.getLineNumber();
+ if (DISubprogram *S = getDISubprogram(&F))
+ return S->getLine();
// If could not find the start of \p F, emit a diagnostic to inform the user
// about the missed opportunity.