forked from OSchip/llvm-project
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
//===- lib/MC/MCObjectWriter.cpp - MCObjectWriter implementation ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCObjectWriter.h"
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using namespace llvm;
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MCObjectWriter::~MCObjectWriter() {
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}
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/// Utility function to encode a SLEB128 value.
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void MCObjectWriter::EncodeSLEB128(int64_t Value, raw_ostream &OS) {
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bool More;
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do {
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uint8_t Byte = Value & 0x7f;
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// NOTE: this assumes that this signed shift is an arithmetic right shift.
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Value >>= 7;
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More = !((((Value == 0 ) && ((Byte & 0x40) == 0)) ||
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((Value == -1) && ((Byte & 0x40) != 0))));
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if (More)
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Byte |= 0x80; // Mark this byte that that more bytes will follow.
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OS << char(Byte);
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} while (More);
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}
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/// Utility function to encode a ULEB128 value.
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void MCObjectWriter::EncodeULEB128(uint64_t Value, raw_ostream &OS) {
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do {
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uint8_t Byte = Value & 0x7f;
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Value >>= 7;
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if (Value != 0)
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Byte |= 0x80; // Mark this byte that that more bytes will follow.
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OS << char(Byte);
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} while (Value != 0);
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}
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