| 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(Inst&: Relaxed, STI); |
| 28 | |
| 29 | EI.first = Code.size(); |
| 30 | MCE.encodeInstruction(Inst: Relaxed, CB&: Code, Fixups, STI); |
| 31 | EI.second = Code.size() - EI.first; |
| 32 | return EI; |
| 33 | } |
| 34 | |
| 35 | } // namespace mca |
| 36 | } // namespace llvm |
| 37 |