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   Assembler.getEmitter().encodeInstruction(Inst, Code, Fixups, STI);
25 
26   // Append the encoded instruction to the current data fragment (or create a
27   // new such fragment if the current fragment is not a data fragment).
28   MCDataFragment *DF = getOrCreateDataFragment();
29 
30   DF->setHasInstructions(STI);
31   DF->getContents().append(Code.begin(), Code.end());
32 }
33 
34 MCStreamer *llvm::createSPIRVStreamer(MCContext &Context,
35                                       std::unique_ptr<MCAsmBackend> &&MAB,
36                                       std::unique_ptr<MCObjectWriter> &&OW,
37                                       std::unique_ptr<MCCodeEmitter> &&CE,
38                                       bool RelaxAll) {
39   MCSPIRVStreamer *S = new MCSPIRVStreamer(Context, std::move(MAB),
40                                            std::move(OW), std::move(CE));
41   if (RelaxAll)
42     S->getAssembler().setRelaxAll(true);
43   return S;
44 }
45