maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[TableGen] Use empty emplace_back to add defaulted constructed objects to vectors to avoid using resize(size()+1). NFC 

llvm-svn: 328184
This commit is contained in:
Craig Topper 2018-03-22 06:15:10 +00:00
parent 281a19cf7b
commit 195aaaf541
1 changed files with 8 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
llvm/utils/TableGen/CodeGenSchedule.cpp
View File

@ -1312,7 +1312,7 @@ void PredTransitions::substituteVariants(const PredTransition &Trans) {
// Build up a set of partial results starting at the back of
// PredTransitions. Remember the first new transition.
unsigned StartIdx = TransVec.size();
TransVec.resize(TransVec.size() + 1);
TransVec.emplace_back();
TransVec.back().PredTerm = Trans.PredTerm;
TransVec.back().ProcIndices = Trans.ProcIndices;
@ -1323,7 +1323,7 @@ void PredTransitions::substituteVariants(const PredTransition &Trans) {
// Push a new (empty) write sequence onto all partial Transitions.
for (std::vector<PredTransition>::iterator I =
TransVec.begin() + StartIdx, E = TransVec.end(); I != E; ++I) {
I->WriteSequences.resize(I->WriteSequences.size() + 1);
I->WriteSequences.emplace_back();
}
substituteVariantOperand(*WSI, /*IsRead=*/false, StartIdx);
}
@ -1334,7 +1334,7 @@ void PredTransitions::substituteVariants(const PredTransition &Trans) {
// Push a new (empty) read sequence onto all partial Transitions.
for (std::vector<PredTransition>::iterator I =
TransVec.begin() + StartIdx, E = TransVec.end(); I != E; ++I) {
I->ReadSequences.resize(I->ReadSequences.size() + 1);
I->ReadSequences.emplace_back();
}
substituteVariantOperand(*RSI, /*IsRead=*/true, StartIdx);
}
@ -1388,16 +1388,15 @@ void CodeGenSchedModels::inferFromRW(ArrayRef<unsigned> OperWrites,
// Create a seed transition with an empty PredTerm and the expanded sequences
// of SchedWrites for the current SchedClass.
std::vector<PredTransition> LastTransitions;
LastTransitions.resize(1);
LastTransitions.emplace_back();
LastTransitions.back().ProcIndices.append(ProcIndices.begin(),
ProcIndices.end());
for (unsigned WriteIdx : OperWrites) {
IdxVec WriteSeq;
expandRWSequence(WriteIdx, WriteSeq, /*IsRead=*/false);
unsigned Idx = LastTransitions[0].WriteSequences.size();
LastTransitions[0].WriteSequences.resize(Idx + 1);
SmallVectorImpl<unsigned> &Seq = LastTransitions[0].WriteSequences[Idx];
LastTransitions[0].WriteSequences.emplace_back();
SmallVectorImpl<unsigned> &Seq = LastTransitions[0].WriteSequences.back();
Seq.append(WriteSeq.begin(), WriteSeq.end());
DEBUG(dbgs() << "("; dumpIdxVec(Seq); dbgs() << ") ");
}
@ -1405,9 +1404,8 @@ void CodeGenSchedModels::inferFromRW(ArrayRef<unsigned> OperWrites,
for (unsigned ReadIdx : OperReads) {
IdxVec ReadSeq;
expandRWSequence(ReadIdx, ReadSeq, /*IsRead=*/true);
unsigned Idx = LastTransitions[0].ReadSequences.size();
LastTransitions[0].ReadSequences.resize(Idx + 1);
SmallVectorImpl<unsigned> &Seq = LastTransitions[0].ReadSequences[Idx];
LastTransitions[0].ReadSequences.emplace_back();
SmallVectorImpl<unsigned> &Seq = LastTransitions[0].ReadSequences.back();
Seq.append(ReadSeq.begin(), ReadSeq.end());
DEBUG(dbgs() << "("; dumpIdxVec(Seq); dbgs() << ") ");
}