| //===- AArch64TargetStreamer.cpp - AArch64TargetStreamer class ------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the AArch64TargetStreamer class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "AArch64TargetStreamer.h" |
| #include "llvm/MC/ConstantPools.h" |
| #include "llvm/MC/MCSection.h" |
| #include "llvm/MC/MCSubtargetInfo.h" |
| |
| using namespace llvm; |
| |
| // |
| // AArch64TargetStreamer Implemenation |
| // |
| AArch64TargetStreamer::AArch64TargetStreamer(MCStreamer &S) |
| : MCTargetStreamer(S), ConstantPools(new AssemblerConstantPools()) {} |
| |
| AArch64TargetStreamer::~AArch64TargetStreamer() = default; |
| |
| // The constant pool handling is shared by all AArch64TargetStreamer |
| // implementations. |
| const MCExpr *AArch64TargetStreamer::addConstantPoolEntry(const MCExpr *Expr, |
| unsigned Size, |
| SMLoc Loc) { |
| return ConstantPools->addEntry(Streamer, Expr, Size, Loc); |
| } |
| |
| void AArch64TargetStreamer::emitCurrentConstantPool() { |
| ConstantPools->emitForCurrentSection(Streamer); |
| } |
| |
| // finish() - write out any non-empty assembler constant pools. |
| void AArch64TargetStreamer::finish() { ConstantPools->emitAll(Streamer); } |
| |
| void AArch64TargetStreamer::emitInst(uint32_t Inst) { |
| char Buffer[4]; |
| |
| // We can't just use EmitIntValue here, as that will swap the |
| // endianness on big-endian systems (instructions are always |
| // little-endian). |
| for (unsigned I = 0; I < 4; ++I) { |
| Buffer[I] = uint8_t(Inst); |
| Inst >>= 8; |
| } |
| |
| getStreamer().EmitBytes(StringRef(Buffer, 4)); |
| } |
| |
| namespace llvm { |
| |
| MCTargetStreamer * |
| createAArch64ObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) { |
| const Triple &TT = STI.getTargetTriple(); |
| if (TT.isOSBinFormatELF()) |
| return new AArch64TargetELFStreamer(S); |
| if (TT.isOSBinFormatCOFF()) |
| return new AArch64TargetWinCOFFStreamer(S); |
| return nullptr; |
| } |
| |
| } // end namespace llvm |