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