OLD | NEW |
1 //===- NaClBitstreamWriter.h - NaCl bitstream writer ------------*- C++ -*-===// | 1 //===- NaClBitstreamWriter.h - NaCl bitstream writer ------------*- C++ -*-===// |
2 // | 2 // |
3 // The LLVM Compiler Infrastructure | 3 // The LLVM Compiler Infrastructure |
4 // | 4 // |
5 // This file is distributed under the University of Illinois Open Source | 5 // This file is distributed under the University of Illinois Open Source |
6 // License. See LICENSE.TXT for details. | 6 // License. See LICENSE.TXT for details. |
7 // | 7 // |
8 //===----------------------------------------------------------------------===// | 8 //===----------------------------------------------------------------------===// |
9 // | 9 // |
10 // This header defines the BitstreamWriter class. This class can be used to | 10 // This header defines the BitstreamWriter class. This class can be used to |
(...skipping 130 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
141 } | 141 } |
142 } | 142 } |
143 | 143 |
144 void initFromHeader(const NaClBitcodeHeader &Header) { | 144 void initFromHeader(const NaClBitcodeHeader &Header) { |
145 AlignBitcodeRecords = Header.getAlignBitcodeRecords(); | 145 AlignBitcodeRecords = Header.getAlignBitcodeRecords(); |
146 } | 146 } |
147 | 147 |
148 /// \brief Retrieve the current position in the stream, in bits. | 148 /// \brief Retrieve the current position in the stream, in bits. |
149 uint64_t GetCurrentBitNo() const { return GetBufferOffset() * 8 + CurBit; } | 149 uint64_t GetCurrentBitNo() const { return GetBufferOffset() * 8 + CurBit; } |
150 | 150 |
| 151 /// \brief Returns the maximum abbreviation index allowed for the |
| 152 /// current block. |
| 153 size_t getMaxCurAbbrevIndex() const { |
| 154 return CurAbbrevs.size() + naclbitc::DEFAULT_MAX_ABBREV; |
| 155 } |
| 156 |
151 //===--------------------------------------------------------------------===// | 157 //===--------------------------------------------------------------------===// |
152 // Basic Primitives for emitting bits to the stream. | 158 // Basic Primitives for emitting bits to the stream. |
153 //===--------------------------------------------------------------------===// | 159 //===--------------------------------------------------------------------===// |
154 | 160 |
155 void Emit(uint32_t Val, unsigned NumBits) { | 161 void Emit(uint32_t Val, unsigned NumBits) { |
156 assert(NumBits && NumBits <= 32 && "Invalid value size!"); | 162 assert(NumBits && NumBits <= 32 && "Invalid value size!"); |
157 assert((Val & ~(~0U >> (32-NumBits))) == 0 && "High bits set!"); | 163 assert((Val & ~(~0U >> (32-NumBits))) == 0 && "High bits set!"); |
158 CurValue |= Val << CurBit; | 164 CurValue |= Val << CurBit; |
159 if (CurBit + NumBits < 32) { | 165 if (CurBit + NumBits < 32) { |
160 CurBit += NumBits; | 166 CurBit += NumBits; |
(...skipping 364 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
525 Info.Abbrevs.push_back(Abbv); | 531 Info.Abbrevs.push_back(Abbv); |
526 | 532 |
527 return Info.Abbrevs.size()-1+naclbitc::FIRST_APPLICATION_ABBREV; | 533 return Info.Abbrevs.size()-1+naclbitc::FIRST_APPLICATION_ABBREV; |
528 } | 534 } |
529 }; | 535 }; |
530 | 536 |
531 | 537 |
532 } // End llvm namespace | 538 } // End llvm namespace |
533 | 539 |
534 #endif | 540 #endif |
OLD | NEW |