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Remove some unnecessary vector::reserve/assign calls. 

llvm-svn: 222959
This commit is contained in:
David Blaikie 2014-11-29 18:13:42 +00:00
parent 9b613dba94
commit 7405608cdd
1 changed files with 5 additions and 9 deletions
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14
llvm/utils/TableGen/CodeGenRegisters.cpp
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@ -944,15 +944,11 @@ CodeGenRegBank::CodeGenRegBank(RecordKeeper &Records) {
std::vector<Record*> Tups =
Records.getAllDerivedDefinitions("RegisterTuples");
std::vector<Record*> TupRegsCopy;
for (unsigned i = 0, e = Tups.size(); i != e; ++i) {
const std::vector<Record*> *TupRegs = Sets.expand(Tups[i]);
TupRegsCopy.reserve(TupRegs->size());
TupRegsCopy.assign(TupRegs->begin(), TupRegs->end());
std::sort(TupRegsCopy.begin(), TupRegsCopy.end(), LessRecordRegister());
for (unsigned j = 0, je = TupRegsCopy.size(); j != je; ++j)
getReg((TupRegsCopy)[j]);
TupRegsCopy.clear();
for (Record *R : Tups) {
std::vector<Record *> TupRegs = *Sets.expand(R);
std::sort(TupRegs.begin(), TupRegs.end(), LessRecordRegister());
for (Record *RC : TupRegs)
getReg(RC);
}
// Now all the registers are known. Build the object graph of explicit