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[MachineOutliner][NFC] Move outlined function remark into its own function

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This pulls the OutlinedFunction remark out into its own function to make
the code a bit easier to read.

llvm-svn: 337849
This commit is contained in:
Jessica Paquette 2018-07-24 20:20:45 +00:00
parent f9b975bb3e
commit b18d5a5138
1 changed files with 33 additions and 31 deletions
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64
lib/CodeGen/MachineOutliner.cpp
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@ -716,6 +716,9 @@ struct MachineOutliner : public ModulePass {
unsigned StringLen, std::vector<Candidate> &CandidatesForRepeatedSeq,
OutlinedFunction &OF);
/// Remark output explaining that a function was outlined.
void emitOutlinedFunctionRemark(OutlinedFunction &OF);
/// Find all repeated substrings that satisfy the outlining cost model.
///
/// If a substring appears at least twice, then it must be represented by
@ -859,6 +862,35 @@ void MachineOutliner::emitNotOutliningCheaperRemark(
});
}
void MachineOutliner::emitOutlinedFunctionRemark(OutlinedFunction &OF) {
MachineBasicBlock *MBB = &*OF.MF->begin();
MachineOptimizationRemarkEmitter MORE(*OF.MF, nullptr);
MachineOptimizationRemark R(DEBUG_TYPE, "OutlinedFunction",
MBB->findDebugLoc(MBB->begin()), MBB);
R << "Saved " << NV("OutliningBenefit", OF.getBenefit()) << " bytes by "
<< "outlining " << NV("Length", OF.Sequence.size()) << " instructions "
<< "from " << NV("NumOccurrences", OF.getOccurrenceCount())
<< " locations. "
<< "(Found at: ";
// Tell the user the other places the candidate was found.
for (size_t i = 0, e = OF.Candidates.size(); i < e; i++) {
// Skip over things that were pruned.
if (!OF.Candidates[i]->InCandidateList)
continue;
R << NV((Twine("StartLoc") + Twine(i)).str(),
OF.Candidates[i]->front()->getDebugLoc());
if (i != e - 1)
R << ", ";
}
R << ")";
MORE.emit(R);
}
unsigned MachineOutliner::findCandidates(
SuffixTree &ST, const TargetInstrInfo &TII, InstructionMapper &Mapper,
std::vector<std::shared_ptr<Candidate>> &CandidateList,
@ -1233,37 +1265,7 @@ bool MachineOutliner::outline(
// Does this candidate have a function yet?
if (!OF.MF) {
OF.MF = createOutlinedFunction(M, OF, Mapper);
MachineBasicBlock *MBB = &*OF.MF->begin();
// Output a remark telling the user that an outlined function was created,
// and explaining where it came from.
MachineOptimizationRemarkEmitter MORE(*OF.MF, nullptr);
MachineOptimizationRemark R(DEBUG_TYPE, "OutlinedFunction",
MBB->findDebugLoc(MBB->begin()), MBB);
R << "Saved " << NV("OutliningBenefit", OF.getBenefit())
<< " bytes by "
<< "outlining " << NV("Length", OF.Sequence.size()) << " instructions "
<< "from " << NV("NumOccurrences", OF.getOccurrenceCount())
<< " locations. "
<< "(Found at: ";
// Tell the user the other places the candidate was found.
for (size_t i = 0, e = OF.Candidates.size(); i < e; i++) {
// Skip over things that were pruned.
if (!OF.Candidates[i]->InCandidateList)
continue;
R << NV(
(Twine("StartLoc") + Twine(i)).str(),
OF.Candidates[i]->front()->getDebugLoc());
if (i != e - 1)
R << ", ";
}
R << ")";
MORE.emit(R);
emitOutlinedFunctionRemark(OF);
FunctionsCreated++;
}