Index: include/llvm/Bitcode/NaCl/NaClBitstreamWriter.h |
diff --git a/include/llvm/Bitcode/BitstreamWriter.h b/include/llvm/Bitcode/NaCl/NaClBitstreamWriter.h |
similarity index 55% |
copy from include/llvm/Bitcode/BitstreamWriter.h |
copy to include/llvm/Bitcode/NaCl/NaClBitstreamWriter.h |
index 9e2c2fa4a15635820ce673457b98223369d55f3b..b0054f5be376c7077e91546b7fa19196aac8bb1f 100644 |
--- a/include/llvm/Bitcode/BitstreamWriter.h |
+++ b/include/llvm/Bitcode/NaCl/NaClBitstreamWriter.h |
@@ -1,4 +1,4 @@ |
-//===- BitstreamWriter.h - Low-level bitstream writer interface -*- C++ -*-===// |
+//===- NaClBitstreamWriter.h - NaCl bitstream writer ------------*- C++ -*-===// |
// |
// The LLVM Compiler Infrastructure |
// |
@@ -12,17 +12,17 @@ |
// |
//===----------------------------------------------------------------------===// |
-#ifndef LLVM_BITCODE_BITSTREAMWRITER_H |
-#define LLVM_BITCODE_BITSTREAMWRITER_H |
+#ifndef LLVM_BITCODE_NACL_NACLBITSTREAMWRITER_H |
+#define LLVM_BITCODE_NACL_NACLBITSTREAMWRITER_H |
#include "llvm/ADT/SmallVector.h" |
#include "llvm/ADT/StringRef.h" |
-#include "llvm/Bitcode/BitCodes.h" |
+#include "llvm/Bitcode/NaCl/NaClBitCodes.h" |
#include <vector> |
namespace llvm { |
-class BitstreamWriter { |
+class NaClBitstreamWriter { |
SmallVectorImpl<char> &Out; |
/// CurBit - Always between 0 and 31 inclusive, specifies the next bit to use. |
@@ -33,20 +33,21 @@ class BitstreamWriter { |
/// CurCodeSize - This is the declared size of code values used for the |
/// current block, in bits. |
- unsigned CurCodeSize; |
+ NaClBitcodeSelectorAbbrev CurCodeSize; |
/// BlockInfoCurBID - When emitting a BLOCKINFO_BLOCK, this is the currently |
/// selected BLOCK ID. |
unsigned BlockInfoCurBID; |
/// CurAbbrevs - Abbrevs installed at in this block. |
- std::vector<IntrusiveRefCntPtr<BitCodeAbbrev>> CurAbbrevs; |
+ std::vector<NaClBitCodeAbbrev*> CurAbbrevs; |
struct Block { |
- unsigned PrevCodeSize; |
+ NaClBitcodeSelectorAbbrev PrevCodeSize; |
unsigned StartSizeWord; |
- std::vector<IntrusiveRefCntPtr<BitCodeAbbrev>> PrevAbbrevs; |
- Block(unsigned PCS, unsigned SSW) : PrevCodeSize(PCS), StartSizeWord(SSW) {} |
+ std::vector<NaClBitCodeAbbrev*> PrevAbbrevs; |
+ Block(const NaClBitcodeSelectorAbbrev& PCS, unsigned SSW) |
+ : PrevCodeSize(PCS), StartSizeWord(SSW) {} |
}; |
/// BlockScope - This tracks the current blocks that we have entered. |
@@ -56,10 +57,34 @@ class BitstreamWriter { |
/// These describe abbreviations that all blocks of the specified ID inherit. |
struct BlockInfo { |
unsigned BlockID; |
- std::vector<IntrusiveRefCntPtr<BitCodeAbbrev>> Abbrevs; |
+ std::vector<NaClBitCodeAbbrev*> Abbrevs; |
}; |
std::vector<BlockInfo> BlockInfoRecords; |
+ /// AbbrevValues - Wrapper class that allows the bitstream writer to |
+ /// prefix a code to the set of values, associated with a record to |
+ /// emit, without having to destructively change the contents of |
+ /// values. |
+ template<typename uintty> |
+ struct AbbrevValues { |
+ AbbrevValues(uintty Code, const SmallVectorImpl<uintty> &Values) |
+ : Code(Code), Values(Values) {} |
+ |
+ size_t size() const { |
+ return Values.size() + 1; |
+ } |
+ |
+ uintty operator[](size_t Index) const { |
+ return Index == 0 ? Code : Values[Index-1]; |
+ } |
+ |
+ private: |
+ // The code to use (if not DONT_USE_CODE). |
+ uintty Code; |
+ const SmallVectorImpl<uintty> &Values; |
+ }; |
+ |
+public: |
// BackpatchWord - Backpatch a 32-bit word in the output with the specified |
// value. |
void BackpatchWord(unsigned ByteNo, unsigned NewWord) { |
@@ -69,6 +94,7 @@ class BitstreamWriter { |
Out[ByteNo ] = (unsigned char)(NewWord >> 24); |
} |
+private: |
void WriteByte(unsigned char Value) { |
Out.push_back(Value); |
} |
@@ -93,12 +119,22 @@ class BitstreamWriter { |
} |
public: |
- explicit BitstreamWriter(SmallVectorImpl<char> &O) |
- : Out(O), CurBit(0), CurValue(0), CurCodeSize(2) {} |
+ explicit NaClBitstreamWriter(SmallVectorImpl<char> &O) |
+ : Out(O), CurBit(0), CurValue(0), CurCodeSize() {} |
- ~BitstreamWriter() { |
- assert(CurBit == 0 && "Unflushed data remaining"); |
+ ~NaClBitstreamWriter() { |
+ assert(CurBit == 0 && "Unflused data remaining"); |
assert(BlockScope.empty() && CurAbbrevs.empty() && "Block imbalance"); |
+ |
+ // Free the BlockInfoRecords. |
+ while (!BlockInfoRecords.empty()) { |
+ BlockInfo &Info = BlockInfoRecords.back(); |
+ // Free blockinfo abbrev info. |
+ for (unsigned i = 0, e = static_cast<unsigned>(Info.Abbrevs.size()); |
+ i != e; ++i) |
+ Info.Abbrevs[i]->dropRef(); |
+ BlockInfoRecords.pop_back(); |
+ } |
} |
/// \brief Retrieve the current position in the stream, in bits. |
@@ -146,6 +182,7 @@ public: |
void EmitVBR(uint32_t Val, unsigned NumBits) { |
assert(NumBits <= 32 && "Too many bits to emit!"); |
+ assert(NumBits > 1 && "Too few bits to emit!"); |
uint32_t Threshold = 1U << (NumBits-1); |
// Emit the bits with VBR encoding, NumBits-1 bits at a time. |
@@ -159,6 +196,7 @@ public: |
void EmitVBR64(uint64_t Val, unsigned NumBits) { |
assert(NumBits <= 32 && "Too many bits to emit!"); |
+ assert(NumBits > 1 && "Too few bits to emit!"); |
if ((uint32_t)Val == Val) |
return EmitVBR((uint32_t)Val, NumBits); |
@@ -176,7 +214,10 @@ public: |
/// EmitCode - Emit the specified code. |
void EmitCode(unsigned Val) { |
- Emit(Val, CurCodeSize); |
+ if (CurCodeSize.IsFixed) |
+ Emit(Val, CurCodeSize.NumBits); |
+ else |
+ EmitVBR(Val, CurCodeSize.NumBits); |
} |
//===--------------------------------------------------------------------===// |
@@ -194,22 +235,28 @@ public: |
i != e; ++i) |
if (BlockInfoRecords[i].BlockID == BlockID) |
return &BlockInfoRecords[i]; |
- return nullptr; |
+ return 0; |
} |
- void EnterSubblock(unsigned BlockID, unsigned CodeLen) { |
+private: |
+ // Enter block using CodeLen bits to read the size of the code |
+ // selector associated with the block. |
+ void EnterSubblock(unsigned BlockID, |
+ const NaClBitcodeSelectorAbbrev& CodeLen, |
+ BlockInfo *Info) { |
// Block header: |
// [ENTER_SUBBLOCK, blockid, newcodelen, <align4bytes>, blocklen] |
- EmitCode(bitc::ENTER_SUBBLOCK); |
- EmitVBR(BlockID, bitc::BlockIDWidth); |
- EmitVBR(CodeLen, bitc::CodeLenWidth); |
+ EmitCode(naclbitc::ENTER_SUBBLOCK); |
+ EmitVBR(BlockID, naclbitc::BlockIDWidth); |
+ assert(CodeLen.IsFixed && "Block codelens must be fixed"); |
+ EmitVBR(CodeLen.NumBits, naclbitc::CodeLenWidth); |
FlushToWord(); |
unsigned BlockSizeWordIndex = GetWordIndex(); |
- unsigned OldCodeSize = CurCodeSize; |
+ NaClBitcodeSelectorAbbrev OldCodeSize(CurCodeSize); |
// Emit a placeholder, which will be replaced when the block is popped. |
- Emit(0, bitc::BlockSizeWidth); |
+ Emit(0, naclbitc::BlockSizeWidth); |
CurCodeSize = CodeLen; |
@@ -220,19 +267,53 @@ public: |
// If there is a blockinfo for this BlockID, add all the predefined abbrevs |
// to the abbrev list. |
- if (BlockInfo *Info = getBlockInfo(BlockID)) { |
- CurAbbrevs.insert(CurAbbrevs.end(), Info->Abbrevs.begin(), |
- Info->Abbrevs.end()); |
+ if (Info) { |
+ for (unsigned i = 0, e = static_cast<unsigned>(Info->Abbrevs.size()); |
+ i != e; ++i) { |
+ CurAbbrevs.push_back(Info->Abbrevs[i]); |
+ Info->Abbrevs[i]->addRef(); |
+ } |
} |
} |
+public: |
+ /// \brief Enter block using CodeLen bits to read the size of the code |
+ /// selector associated with the block. |
+ void EnterSubblock(unsigned BlockID, |
+ const NaClBitcodeSelectorAbbrev& CodeLen) { |
+ EnterSubblock(BlockID, CodeLen, getBlockInfo(BlockID)); |
+ } |
+ |
+ /// \brief Enter block, using a code length based on the number of |
+ /// (global) BlockInfo entries defined for the block. Note: This |
+ /// should be used only if the block doesn't define any local abbreviations. |
+ void EnterSubblock(unsigned BlockID) { |
+ BlockInfo *Info = getBlockInfo(BlockID); |
+ size_t NumAbbrevs = Info ? Info->Abbrevs.size() : 0; |
+ NaClBitcodeSelectorAbbrev DefaultCodeLen( |
+ naclbitc::DEFAULT_MAX_ABBREV+NumAbbrevs); |
+ EnterSubblock(BlockID, DefaultCodeLen, Info); |
+ } |
+ |
+ /// \brief Enter block with the given number of abbreviations. |
+ void EnterSubblock(unsigned BlockID, unsigned NumAbbrev) { |
+ NaClBitcodeSelectorAbbrev CodeLenAbbrev(NumAbbrev); |
+ EnterSubblock(BlockID, CodeLenAbbrev); |
+ } |
+ |
void ExitBlock() { |
assert(!BlockScope.empty() && "Block scope imbalance!"); |
+ |
+ // Delete all abbrevs. |
+ for (unsigned i = 0, e = static_cast<unsigned>(CurAbbrevs.size()); |
+ i != e; ++i) |
+ CurAbbrevs[i]->dropRef(); |
+ |
const Block &B = BlockScope.back(); |
// Block tail: |
// [END_BLOCK, <align4bytes>] |
- EmitCode(bitc::END_BLOCK); |
+ EmitCode(naclbitc::END_BLOCK); |
FlushToWord(); |
// Compute the size of the block, in words, not counting the size field. |
@@ -244,7 +325,7 @@ public: |
// Restore the inner block's code size and abbrev table. |
CurCodeSize = B.PrevCodeSize; |
- CurAbbrevs = std::move(B.PrevAbbrevs); |
+ BlockScope.back().PrevAbbrevs.swap(CurAbbrevs); |
BlockScope.pop_back(); |
} |
@@ -253,146 +334,84 @@ public: |
//===--------------------------------------------------------------------===// |
private: |
- /// EmitAbbreviatedLiteral - Emit a literal value according to its abbrev |
- /// record. This is a no-op, since the abbrev specifies the literal to use. |
- template<typename uintty> |
- void EmitAbbreviatedLiteral(const BitCodeAbbrevOp &Op, uintty V) { |
- assert(Op.isLiteral() && "Not a literal"); |
- // If the abbrev specifies the literal value to use, don't emit |
- // anything. |
- assert(V == Op.getLiteralValue() && |
- "Invalid abbrev for record!"); |
- } |
- |
/// EmitAbbreviatedField - Emit a single scalar field value with the specified |
/// encoding. |
template<typename uintty> |
- void EmitAbbreviatedField(const BitCodeAbbrevOp &Op, uintty V) { |
- assert(!Op.isLiteral() && "Literals should use EmitAbbreviatedLiteral!"); |
- |
- // Encode the value as we are commanded. |
+ void EmitAbbreviatedField(const NaClBitCodeAbbrevOp &Op, uintty V) { |
switch (Op.getEncoding()) { |
- default: llvm_unreachable("Unknown encoding!"); |
- case BitCodeAbbrevOp::Fixed: |
- if (Op.getEncodingData()) |
- Emit((unsigned)V, (unsigned)Op.getEncodingData()); |
+ case NaClBitCodeAbbrevOp::Literal: |
+ // This is a no-op, since the abbrev specifies the literal to use. |
+ assert(V == Op.getValue() && "Invalid abbrev for record!"); |
break; |
- case BitCodeAbbrevOp::VBR: |
- if (Op.getEncodingData()) |
- EmitVBR64(V, (unsigned)Op.getEncodingData()); |
+ case NaClBitCodeAbbrevOp::Fixed: |
+ if (Op.getValue()) |
+ Emit((unsigned)V, (unsigned)Op.getValue()); |
break; |
- case BitCodeAbbrevOp::Char6: |
- Emit(BitCodeAbbrevOp::EncodeChar6((char)V), 6); |
+ case NaClBitCodeAbbrevOp::VBR: |
+ if (Op.getValue()) |
+ EmitVBR64(V, (unsigned)Op.getValue()); |
+ break; |
+ case NaClBitCodeAbbrevOp::Array: |
+ report_fatal_error("Not to be used with array abbreviation op!"); |
+ case NaClBitCodeAbbrevOp::Char6: |
+ Emit(NaClBitCodeAbbrevOp::EncodeChar6((char)V), 6); |
break; |
} |
} |
/// EmitRecordWithAbbrevImpl - This is the core implementation of the record |
- /// emission code. If BlobData is non-null, then it specifies an array of |
- /// data that should be emitted as part of the Blob or Array operand that is |
- /// known to exist at the end of the record. |
+ /// emission code. |
template<typename uintty> |
- void EmitRecordWithAbbrevImpl(unsigned Abbrev, SmallVectorImpl<uintty> &Vals, |
- StringRef Blob) { |
- const char *BlobData = Blob.data(); |
- unsigned BlobLen = (unsigned) Blob.size(); |
- unsigned AbbrevNo = Abbrev-bitc::FIRST_APPLICATION_ABBREV; |
+ void EmitRecordWithAbbrevImpl(unsigned Abbrev, |
+ const AbbrevValues<uintty> &Vals) { |
+ unsigned AbbrevNo = Abbrev-naclbitc::FIRST_APPLICATION_ABBREV; |
assert(AbbrevNo < CurAbbrevs.size() && "Invalid abbrev #!"); |
- const BitCodeAbbrev *Abbv = CurAbbrevs[AbbrevNo].get(); |
+ NaClBitCodeAbbrev *Abbv = CurAbbrevs[AbbrevNo]; |
EmitCode(Abbrev); |
unsigned RecordIdx = 0; |
for (unsigned i = 0, e = static_cast<unsigned>(Abbv->getNumOperandInfos()); |
i != e; ++i) { |
- const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i); |
- if (Op.isLiteral()) { |
- assert(RecordIdx < Vals.size() && "Invalid abbrev/record"); |
- EmitAbbreviatedLiteral(Op, Vals[RecordIdx]); |
- ++RecordIdx; |
- } else if (Op.getEncoding() == BitCodeAbbrevOp::Array) { |
+ const NaClBitCodeAbbrevOp &Op = Abbv->getOperandInfo(i); |
+ if (Op.getEncoding() == NaClBitCodeAbbrevOp::Array) { |
// Array case. |
assert(i+2 == e && "array op not second to last?"); |
- const BitCodeAbbrevOp &EltEnc = Abbv->getOperandInfo(++i); |
- |
- // If this record has blob data, emit it, otherwise we must have record |
- // entries to encode this way. |
- if (BlobData) { |
- assert(RecordIdx == Vals.size() && |
- "Blob data and record entries specified for array!"); |
- // Emit a vbr6 to indicate the number of elements present. |
- EmitVBR(static_cast<uint32_t>(BlobLen), 6); |
- |
- // Emit each field. |
- for (unsigned i = 0; i != BlobLen; ++i) |
- EmitAbbreviatedField(EltEnc, (unsigned char)BlobData[i]); |
- |
- // Know that blob data is consumed for assertion below. |
- BlobData = nullptr; |
- } else { |
- // Emit a vbr6 to indicate the number of elements present. |
- EmitVBR(static_cast<uint32_t>(Vals.size()-RecordIdx), 6); |
- |
- // Emit each field. |
- for (unsigned e = Vals.size(); RecordIdx != e; ++RecordIdx) |
- EmitAbbreviatedField(EltEnc, Vals[RecordIdx]); |
- } |
- } else if (Op.getEncoding() == BitCodeAbbrevOp::Blob) { |
- // If this record has blob data, emit it, otherwise we must have record |
- // entries to encode this way. |
+ const NaClBitCodeAbbrevOp &EltEnc = Abbv->getOperandInfo(++i); |
// Emit a vbr6 to indicate the number of elements present. |
- if (BlobData) { |
- EmitVBR(static_cast<uint32_t>(BlobLen), 6); |
- assert(RecordIdx == Vals.size() && |
- "Blob data and record entries specified for blob operand!"); |
- } else { |
- EmitVBR(static_cast<uint32_t>(Vals.size()-RecordIdx), 6); |
- } |
- |
- // Flush to a 32-bit alignment boundary. |
- FlushToWord(); |
- |
- // Emit each field as a literal byte. |
- if (BlobData) { |
- for (unsigned i = 0; i != BlobLen; ++i) |
- WriteByte((unsigned char)BlobData[i]); |
- |
- // Know that blob data is consumed for assertion below. |
- BlobData = nullptr; |
- } else { |
- for (unsigned e = Vals.size(); RecordIdx != e; ++RecordIdx) { |
- assert(isUInt<8>(Vals[RecordIdx]) && |
- "Value too large to emit as blob"); |
- WriteByte((unsigned char)Vals[RecordIdx]); |
- } |
- } |
- |
- // Align end to 32-bits. |
- while (GetBufferOffset() & 3) |
- WriteByte(0); |
- } else { // Single scalar field. |
+ EmitVBR(static_cast<uint32_t>(Vals.size()-RecordIdx), 6); |
+ |
+ // Emit each field. |
+ for (unsigned e = Vals.size(); RecordIdx != e; ++RecordIdx) |
+ EmitAbbreviatedField(EltEnc, Vals[RecordIdx]); |
+ } else { |
assert(RecordIdx < Vals.size() && "Invalid abbrev/record"); |
EmitAbbreviatedField(Op, Vals[RecordIdx]); |
++RecordIdx; |
} |
} |
assert(RecordIdx == Vals.size() && "Not all record operands emitted!"); |
- assert(BlobData == nullptr && |
- "Blob data specified for record that doesn't use it!"); |
} |
public: |
+ /// Returns true if the given abbreviation index corresponds to a user-defined |
+ /// abbreviation. |
+ bool isUserRecordAbbreviation(unsigned Abbrev) const { |
+ return Abbrev >= naclbitc::FIRST_APPLICATION_ABBREV |
+ && Abbrev < CurAbbrevs.size(); |
+ } |
+ |
/// EmitRecord - Emit the specified record to the stream, using an abbrev if |
/// we have one to compress the output. |
template<typename uintty> |
- void EmitRecord(unsigned Code, SmallVectorImpl<uintty> &Vals, |
+ void EmitRecord(unsigned Code, const SmallVectorImpl<uintty> &Vals, |
unsigned Abbrev = 0) { |
if (!Abbrev) { |
// If we don't have an abbrev to use, emit this in its fully unabbreviated |
// form. |
- EmitCode(bitc::UNABBREV_RECORD); |
+ EmitCode(naclbitc::UNABBREV_RECORD); |
EmitVBR(Code, 6); |
EmitVBR(static_cast<uint32_t>(Vals.size()), 6); |
for (unsigned i = 0, e = static_cast<unsigned>(Vals.size()); i != e; ++i) |
@@ -400,48 +419,9 @@ public: |
return; |
} |
- // Insert the code into Vals to treat it uniformly. |
- Vals.insert(Vals.begin(), Code); |
- |
- EmitRecordWithAbbrev(Abbrev, Vals); |
- } |
- |
- /// EmitRecordWithAbbrev - Emit a record with the specified abbreviation. |
- /// Unlike EmitRecord, the code for the record should be included in Vals as |
- /// the first entry. |
- template<typename uintty> |
- void EmitRecordWithAbbrev(unsigned Abbrev, SmallVectorImpl<uintty> &Vals) { |
- EmitRecordWithAbbrevImpl(Abbrev, Vals, StringRef()); |
- } |
- |
- /// EmitRecordWithBlob - Emit the specified record to the stream, using an |
- /// abbrev that includes a blob at the end. The blob data to emit is |
- /// specified by the pointer and length specified at the end. In contrast to |
- /// EmitRecord, this routine expects that the first entry in Vals is the code |
- /// of the record. |
- template<typename uintty> |
- void EmitRecordWithBlob(unsigned Abbrev, SmallVectorImpl<uintty> &Vals, |
- StringRef Blob) { |
- EmitRecordWithAbbrevImpl(Abbrev, Vals, Blob); |
- } |
- template<typename uintty> |
- void EmitRecordWithBlob(unsigned Abbrev, SmallVectorImpl<uintty> &Vals, |
- const char *BlobData, unsigned BlobLen) { |
- return EmitRecordWithAbbrevImpl(Abbrev, Vals, StringRef(BlobData, BlobLen)); |
- } |
- |
- /// EmitRecordWithArray - Just like EmitRecordWithBlob, works with records |
- /// that end with an array. |
- template<typename uintty> |
- void EmitRecordWithArray(unsigned Abbrev, SmallVectorImpl<uintty> &Vals, |
- StringRef Array) { |
- EmitRecordWithAbbrevImpl(Abbrev, Vals, Array); |
- } |
- template<typename uintty> |
- void EmitRecordWithArray(unsigned Abbrev, SmallVectorImpl<uintty> &Vals, |
- const char *ArrayData, unsigned ArrayLen) { |
- return EmitRecordWithAbbrevImpl(Abbrev, Vals, StringRef(ArrayData, |
- ArrayLen)); |
+ // combine code and values, and then emit. |
+ AbbrevValues<uintty> AbbrevVals(Code, Vals); |
+ EmitRecordWithAbbrevImpl(Abbrev, AbbrevVals); |
} |
//===--------------------------------------------------------------------===// |
@@ -450,19 +430,20 @@ public: |
private: |
// Emit the abbreviation as a DEFINE_ABBREV record. |
- void EncodeAbbrev(BitCodeAbbrev *Abbv) { |
- EmitCode(bitc::DEFINE_ABBREV); |
+ void EncodeAbbrev(NaClBitCodeAbbrev *Abbv) { |
+ EmitCode(naclbitc::DEFINE_ABBREV); |
EmitVBR(Abbv->getNumOperandInfos(), 5); |
for (unsigned i = 0, e = static_cast<unsigned>(Abbv->getNumOperandInfos()); |
i != e; ++i) { |
- const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i); |
- Emit(Op.isLiteral(), 1); |
- if (Op.isLiteral()) { |
- EmitVBR64(Op.getLiteralValue(), 8); |
+ const NaClBitCodeAbbrevOp &Op = Abbv->getOperandInfo(i); |
+ bool IsLiteral = Op.isLiteral(); |
+ Emit(IsLiteral, 1); |
+ if (IsLiteral) { |
+ EmitVBR64(Op.getValue(), 8); |
} else { |
Emit(Op.getEncoding(), 3); |
- if (Op.hasEncodingData()) |
- EmitVBR64(Op.getEncodingData(), 5); |
+ if (Op.hasValue()) |
+ EmitVBR64(Op.getValue(), 5); |
} |
} |
} |
@@ -470,12 +451,13 @@ public: |
/// EmitAbbrev - This emits an abbreviation to the stream. Note that this |
/// method takes ownership of the specified abbrev. |
- unsigned EmitAbbrev(BitCodeAbbrev *Abbv) { |
+ unsigned EmitAbbrev(NaClBitCodeAbbrev *Abbv) { |
+ assert(Abbv->isValid() && "Can't emit invalid abbreviation!"); |
// Emit the abbreviation as a record. |
EncodeAbbrev(Abbv); |
CurAbbrevs.push_back(Abbv); |
return static_cast<unsigned>(CurAbbrevs.size())-1 + |
- bitc::FIRST_APPLICATION_ABBREV; |
+ naclbitc::FIRST_APPLICATION_ABBREV; |
} |
//===--------------------------------------------------------------------===// |
@@ -483,8 +465,8 @@ public: |
//===--------------------------------------------------------------------===// |
/// EnterBlockInfoBlock - Start emitting the BLOCKINFO_BLOCK. |
- void EnterBlockInfoBlock(unsigned CodeWidth) { |
- EnterSubblock(bitc::BLOCKINFO_BLOCK_ID, CodeWidth); |
+ void EnterBlockInfoBlock() { |
+ EnterSubblock(naclbitc::BLOCKINFO_BLOCK_ID); |
BlockInfoCurBID = ~0U; |
} |
private: |
@@ -494,7 +476,7 @@ private: |
if (BlockInfoCurBID == BlockID) return; |
SmallVector<unsigned, 2> V; |
V.push_back(BlockID); |
- EmitRecord(bitc::BLOCKINFO_CODE_SETBID, V); |
+ EmitRecord(naclbitc::BLOCKINFO_CODE_SETBID, V); |
BlockInfoCurBID = BlockID; |
} |
@@ -512,7 +494,7 @@ public: |
/// EmitBlockInfoAbbrev - Emit a DEFINE_ABBREV record for the specified |
/// BlockID. |
- unsigned EmitBlockInfoAbbrev(unsigned BlockID, BitCodeAbbrev *Abbv) { |
+ unsigned EmitBlockInfoAbbrev(unsigned BlockID, NaClBitCodeAbbrev *Abbv) { |
SwitchToBlockID(BlockID); |
EncodeAbbrev(Abbv); |
@@ -520,7 +502,7 @@ public: |
BlockInfo &Info = getOrCreateBlockInfo(BlockID); |
Info.Abbrevs.push_back(Abbv); |
- return Info.Abbrevs.size()-1+bitc::FIRST_APPLICATION_ABBREV; |
+ return Info.Abbrevs.size()-1+naclbitc::FIRST_APPLICATION_ABBREV; |
} |
}; |