1*0fca6ea1SDimitry Andric //===- CombinerUtils.cpp --------------------------------------------------===// 2*0fca6ea1SDimitry Andric // 3*0fca6ea1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0fca6ea1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0fca6ea1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0fca6ea1SDimitry Andric // 7*0fca6ea1SDimitry Andric //===----------------------------------------------------------------------===// 8*0fca6ea1SDimitry Andric 9*0fca6ea1SDimitry Andric #include "CombinerUtils.h" 10*0fca6ea1SDimitry Andric #include "llvm/ADT/StringSet.h" 11*0fca6ea1SDimitry Andric 12*0fca6ea1SDimitry Andric namespace llvm { 13*0fca6ea1SDimitry Andric 14*0fca6ea1SDimitry Andric StringRef insertStrRef(StringRef S) { 15*0fca6ea1SDimitry Andric if (S.empty()) 16*0fca6ea1SDimitry Andric return {}; 17*0fca6ea1SDimitry Andric 18*0fca6ea1SDimitry Andric static StringSet<> Pool; 19*0fca6ea1SDimitry Andric auto [It, Inserted] = Pool.insert(S); 20*0fca6ea1SDimitry Andric return It->getKey(); 21*0fca6ea1SDimitry Andric } 22*0fca6ea1SDimitry Andric 23*0fca6ea1SDimitry Andric } // namespace llvm 24