1 //===--------------------- CodeEmitter.cpp ----------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements the CodeEmitter API. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/MCA/CodeEmitter.h" 14 15 namespace llvm { 16 namespace mca { 17 18 CodeEmitter::EncodingInfo CodeEmitter::getOrCreateEncodingInfo(unsigned MCID) { 19 EncodingInfo &EI = Encodings[MCID]; 20 if (EI.second) 21 return EI; 22 23 SmallVector<llvm::MCFixup, 2> Fixups; 24 const MCInst &Inst = Sequence[MCID]; 25 MCInst Relaxed(Sequence[MCID]); 26 if (MAB.mayNeedRelaxation(Inst, STI)) 27 MAB.relaxInstruction(Relaxed, STI); 28 29 EI.first = Code.size(); 30 MCE.encodeInstruction(Relaxed, Code, Fixups, STI); 31 EI.second = Code.size() - EI.first; 32 return EI; 33 } 34 35 } // namespace mca 36 } // namespace llvm 37