1 //===- lib/MC/MCSPIRVStreamer.cpp - SPIR-V Object Output ------*- 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 assembles .s files and emits SPIR-V .o object files.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "llvm/MC/MCSPIRVStreamer.h"
14 #include "llvm/MC/MCAssembler.h"
15 #include "llvm/MC/TargetRegistry.h"
16 
17 using namespace llvm;
18 
19 void MCSPIRVStreamer::emitInstToData(const MCInst &Inst,
20                                      const MCSubtargetInfo &STI) {
21   MCAssembler &Assembler = getAssembler();
22   SmallVector<MCFixup, 0> Fixups;
23   SmallString<256> Code;
24   raw_svector_ostream VecOS(Code);
25   Assembler.getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI);
26 
27   // Append the encoded instruction to the current data fragment (or create a
28   // new such fragment if the current fragment is not a data fragment).
29   MCDataFragment *DF = getOrCreateDataFragment();
30 
31   DF->setHasInstructions(STI);
32   DF->getContents().append(Code.begin(), Code.end());
33 }
34 
35 MCStreamer *llvm::createSPIRVStreamer(MCContext &Context,
36                                       std::unique_ptr<MCAsmBackend> &&MAB,
37                                       std::unique_ptr<MCObjectWriter> &&OW,
38                                       std::unique_ptr<MCCodeEmitter> &&CE,
39                                       bool RelaxAll) {
40   MCSPIRVStreamer *S = new MCSPIRVStreamer(Context, std::move(MAB),
41                                            std::move(OW), std::move(CE));
42   if (RelaxAll)
43     S->getAssembler().setRelaxAll(true);
44   return S;
45 }
46