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
emitInstToData(const MCInst & Inst,const MCSubtargetInfo & STI)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
createSPIRVStreamer(MCContext & Context,std::unique_ptr<MCAsmBackend> && MAB,std::unique_ptr<MCObjectWriter> && OW,std::unique_ptr<MCCodeEmitter> && CE,bool RelaxAll)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