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//===- 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
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