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[TableGen] Use std::remove_if instead of an n^2 loop. NFC 

llvm-svn: 257581
This commit is contained in:
Craig Topper 2016-01-13 07:20:10 +00:00
parent df39060f9f
commit 4f1f11527e
1 changed files with 5 additions and 8 deletions
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13
llvm/utils/TableGen/AsmWriterEmitter.cpp
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@ -478,14 +478,11 @@ void AsmWriterEmitter::EmitPrintInstruction(raw_ostream &O) {
}
// Okay, delete instructions with no operand info left.
for (unsigned i = 0, e = Instructions.size(); i != e; ++i) {
// Entire instruction has been emitted?
AsmWriterInst &Inst = Instructions[i];
if (Inst.Operands.empty()) {
Instructions.erase(Instructions.begin()+i);
--i; --e;
}
}
auto I = std::remove_if(Instructions.begin(), Instructions.end(),
[](AsmWriterInst &Inst) {
return Inst.Operands.empty();
});
Instructions.erase(I, Instructions.end());
// Because this is a vector, we want to emit from the end. Reverse all of the