+};
+
+}
+
+/// CurStreamType - If we can sniff the flavor of this stream, we can produce
+/// better dump info.
+static CurStreamTypeType CurStreamType;
+
+
+/// GetBlockName - Return a symbolic block name if known, otherwise return
+/// null.
+static const char *GetBlockName(unsigned BlockID,
+ const BitstreamReader &StreamFile) {
+ // Standard blocks for all bitcode files.
+ if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID)
+ return "BLOCKINFO_BLOCK";
+ return 0;
+ }
+
+ // Check to see if we have a blockinfo record for this block, with a name.
+ if (const BitstreamReader::BlockInfo *Info =
+ StreamFile.getBlockInfo(BlockID)) {
+ if (!Info->Name.empty())
+ return Info->Name.c_str();
+ }
+
+
+ if (CurStreamType != LLVMIRBitstream) return 0;
+
+ switch (BlockID) {
+ default: return 0;
+ case bitc::MODULE_BLOCK_ID: return "MODULE_BLOCK";
+ case bitc::PARAMATTR_BLOCK_ID: return "PARAMATTR_BLOCK";
+ case bitc::PARAMATTR_GROUP_BLOCK_ID: return "PARAMATTR_GROUP_BLOCK_ID";
+ case bitc::TYPE_BLOCK_ID_NEW: return "TYPE_BLOCK_ID";
+ case bitc::CONSTANTS_BLOCK_ID: return "CONSTANTS_BLOCK";
+ case bitc::FUNCTION_BLOCK_ID: return "FUNCTION_BLOCK";
+ case bitc::VALUE_SYMTAB_BLOCK_ID: return "VALUE_SYMTAB";
+ case bitc::METADATA_BLOCK_ID: return "METADATA_BLOCK";
+ case bitc::METADATA_ATTACHMENT_ID: return "METADATA_ATTACHMENT_BLOCK";
+ case bitc::USELIST_BLOCK_ID: return "USELIST_BLOCK_ID";
+ }
+}
+
+/// GetCodeName - Return a symbolic code name if known, otherwise return
+/// null.
+static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
+ const BitstreamReader &StreamFile) {
+ // Standard blocks for all bitcode files.
+ if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
+ switch (CodeID) {
+ default: return 0;
+ case bitc::BLOCKINFO_CODE_SETBID: return "SETBID";
+ case bitc::BLOCKINFO_CODE_BLOCKNAME: return "BLOCKNAME";
+ case bitc::BLOCKINFO_CODE_SETRECORDNAME: return "SETRECORDNAME";
+ }
+ }
+ return 0;
+ }
+
+ // Check to see if we have a blockinfo record for this record, with a name.
+ if (const BitstreamReader::BlockInfo *Info =
+ StreamFile.getBlockInfo(BlockID)) {
+ for (unsigned i = 0, e = Info->RecordNames.size(); i != e; ++i)
+ if (Info->RecordNames[i].first == CodeID)
+ return Info->RecordNames[i].second.c_str();
+ }
+
+
+ if (CurStreamType != LLVMIRBitstream) return 0;
+
+ switch (BlockID) {
+ default: return 0;
+ case bitc::MODULE_BLOCK_ID:
+ switch (CodeID) {
+ default: return 0;
+ case bitc::MODULE_CODE_VERSION: return "VERSION";
+ case bitc::MODULE_CODE_TRIPLE: return "TRIPLE";
+ case bitc::MODULE_CODE_DATALAYOUT: return "DATALAYOUT";
+ case bitc::MODULE_CODE_ASM: return "ASM";
+ case bitc::MODULE_CODE_SECTIONNAME: return "SECTIONNAME";
+ case bitc::MODULE_CODE_DEPLIB: return "DEPLIB"; // FIXME: Remove in 4.0
+ case bitc::MODULE_CODE_GLOBALVAR: return "GLOBALVAR";
+ case bitc::MODULE_CODE_FUNCTION: return "FUNCTION";
+ case bitc::MODULE_CODE_ALIAS: return "ALIAS";
+ case bitc::MODULE_CODE_PURGEVALS: return "PURGEVALS";
+ case bitc::MODULE_CODE_GCNAME: return "GCNAME";
+ }
+ case bitc::PARAMATTR_BLOCK_ID:
+ switch (CodeID) {
+ default: return 0;
+ case bitc::PARAMATTR_CODE_ENTRY_OLD: return "ENTRY";
+ case bitc::PARAMATTR_CODE_ENTRY: return "ENTRY";
+ case bitc::PARAMATTR_GRP_CODE_ENTRY: return "ENTRY";
+ }
+ case bitc::TYPE_BLOCK_ID_NEW:
+ switch (CodeID) {
+ default: return 0;
+ case bitc::TYPE_CODE_NUMENTRY: return "NUMENTRY";
+ case bitc::TYPE_CODE_VOID: return "VOID";
+ case bitc::TYPE_CODE_FLOAT: return "FLOAT";
+ case bitc::TYPE_CODE_DOUBLE: return "DOUBLE";
+ case bitc::TYPE_CODE_LABEL: return "LABEL";
+ case bitc::TYPE_CODE_OPAQUE: return "OPAQUE";
+ case bitc::TYPE_CODE_INTEGER: return "INTEGER";
+ case bitc::TYPE_CODE_POINTER: return "POINTER";
+ case bitc::TYPE_CODE_ARRAY: return "ARRAY";
+ case bitc::TYPE_CODE_VECTOR: return "VECTOR";
+ case bitc::TYPE_CODE_X86_FP80: return "X86_FP80";
+ case bitc::TYPE_CODE_FP128: return "FP128";
+ case bitc::TYPE_CODE_PPC_FP128: return "PPC_FP128";
+ case bitc::TYPE_CODE_METADATA: return "METADATA";
+ case bitc::TYPE_CODE_STRUCT_ANON: return "STRUCT_ANON";
+ case bitc::TYPE_CODE_STRUCT_NAME: return "STRUCT_NAME";
+ case bitc::TYPE_CODE_STRUCT_NAMED: return "STRUCT_NAMED";
+ case bitc::TYPE_CODE_FUNCTION: return "FUNCTION";
+ }
+
+ case bitc::CONSTANTS_BLOCK_ID:
+ switch (CodeID) {
+ default: return 0;
+ case bitc::CST_CODE_SETTYPE: return "SETTYPE";
+ case bitc::CST_CODE_NULL: return "NULL";
+ case bitc::CST_CODE_UNDEF: return "UNDEF";
+ case bitc::CST_CODE_INTEGER: return "INTEGER";
+ case bitc::CST_CODE_WIDE_INTEGER: return "WIDE_INTEGER";
+ case bitc::CST_CODE_FLOAT: return "FLOAT";
+ case bitc::CST_CODE_AGGREGATE: return "AGGREGATE";
+ case bitc::CST_CODE_STRING: return "STRING";
+ case bitc::CST_CODE_CSTRING: return "CSTRING";
+ case bitc::CST_CODE_CE_BINOP: return "CE_BINOP";
+ case bitc::CST_CODE_CE_CAST: return "CE_CAST";
+ case bitc::CST_CODE_CE_GEP: return "CE_GEP";
+ case bitc::CST_CODE_CE_INBOUNDS_GEP: return "CE_INBOUNDS_GEP";
+ case bitc::CST_CODE_CE_SELECT: return "CE_SELECT";
+ case bitc::CST_CODE_CE_EXTRACTELT: return "CE_EXTRACTELT";
+ case bitc::CST_CODE_CE_INSERTELT: return "CE_INSERTELT";
+ case bitc::CST_CODE_CE_SHUFFLEVEC: return "CE_SHUFFLEVEC";
+ case bitc::CST_CODE_CE_CMP: return "CE_CMP";
+ case bitc::CST_CODE_INLINEASM: return "INLINEASM";
+ case bitc::CST_CODE_CE_SHUFVEC_EX: return "CE_SHUFVEC_EX";
+ case bitc::CST_CODE_BLOCKADDRESS: return "CST_CODE_BLOCKADDRESS";
+ case bitc::CST_CODE_DATA: return "DATA";
+ }
+ case bitc::FUNCTION_BLOCK_ID:
+ switch (CodeID) {
+ default: return 0;
+ case bitc::FUNC_CODE_DECLAREBLOCKS: return "DECLAREBLOCKS";
+
+ case bitc::FUNC_CODE_INST_BINOP: return "INST_BINOP";
+ case bitc::FUNC_CODE_INST_CAST: return "INST_CAST";
+ case bitc::FUNC_CODE_INST_GEP: return "INST_GEP";
+ case bitc::FUNC_CODE_INST_INBOUNDS_GEP: return "INST_INBOUNDS_GEP";
+ case bitc::FUNC_CODE_INST_SELECT: return "INST_SELECT";
+ case bitc::FUNC_CODE_INST_EXTRACTELT: return "INST_EXTRACTELT";
+ case bitc::FUNC_CODE_INST_INSERTELT: return "INST_INSERTELT";
+ case bitc::FUNC_CODE_INST_SHUFFLEVEC: return "INST_SHUFFLEVEC";
+ case bitc::FUNC_CODE_INST_CMP: return "INST_CMP";
+
+ case bitc::FUNC_CODE_INST_RET: return "INST_RET";
+ case bitc::FUNC_CODE_INST_BR: return "INST_BR";
+ case bitc::FUNC_CODE_INST_SWITCH: return "INST_SWITCH";
+ case bitc::FUNC_CODE_INST_INVOKE: return "INST_INVOKE";
+ case bitc::FUNC_CODE_INST_UNREACHABLE: return "INST_UNREACHABLE";
+
+ case bitc::FUNC_CODE_INST_PHI: return "INST_PHI";
+ case bitc::FUNC_CODE_INST_ALLOCA: return "INST_ALLOCA";
+ case bitc::FUNC_CODE_INST_LOAD: return "INST_LOAD";
+ case bitc::FUNC_CODE_INST_VAARG: return "INST_VAARG";
+ case bitc::FUNC_CODE_INST_STORE: return "INST_STORE";
+ case bitc::FUNC_CODE_INST_EXTRACTVAL: return "INST_EXTRACTVAL";
+ case bitc::FUNC_CODE_INST_INSERTVAL: return "INST_INSERTVAL";
+ case bitc::FUNC_CODE_INST_CMP2: return "INST_CMP2";
+ case bitc::FUNC_CODE_INST_VSELECT: return "INST_VSELECT";
+ case bitc::FUNC_CODE_DEBUG_LOC_AGAIN: return "DEBUG_LOC_AGAIN";
+ case bitc::FUNC_CODE_INST_CALL: return "INST_CALL";
+ case bitc::FUNC_CODE_DEBUG_LOC: return "DEBUG_LOC";
+ }
+ case bitc::VALUE_SYMTAB_BLOCK_ID:
+ switch (CodeID) {
+ default: return 0;
+ case bitc::VST_CODE_ENTRY: return "ENTRY";
+ case bitc::VST_CODE_BBENTRY: return "BBENTRY";
+ }
+ case bitc::METADATA_ATTACHMENT_ID:
+ switch(CodeID) {
+ default:return 0;
+ case bitc::METADATA_ATTACHMENT: return "METADATA_ATTACHMENT";
+ }
+ case bitc::METADATA_BLOCK_ID:
+ switch(CodeID) {
+ default:return 0;
+ case bitc::METADATA_STRING: return "METADATA_STRING";
+ case bitc::METADATA_NAME: return "METADATA_NAME";
+ case bitc::METADATA_KIND: return "METADATA_KIND";
+ case bitc::METADATA_NODE: return "METADATA_NODE";
+ case bitc::METADATA_FN_NODE: return "METADATA_FN_NODE";
+ case bitc::METADATA_NAMED_NODE: return "METADATA_NAMED_NODE";
+ }
+ case bitc::USELIST_BLOCK_ID:
+ switch(CodeID) {
+ default:return 0;
+ case bitc::USELIST_CODE_ENTRY: return "USELIST_CODE_ENTRY";
+ }
+ }
+}
+
+struct PerRecordStats {
+ unsigned NumInstances;
+ unsigned NumAbbrev;
+ uint64_t TotalBits;
+
+ PerRecordStats() : NumInstances(0), NumAbbrev(0), TotalBits(0) {}
+};
+
+struct PerBlockIDStats {
+ /// NumInstances - This the number of times this block ID has been seen.
+ unsigned NumInstances;
+
+ /// NumBits - The total size in bits of all of these blocks.
+ uint64_t NumBits;
+
+ /// NumSubBlocks - The total number of blocks these blocks contain.
+ unsigned NumSubBlocks;
+
+ /// NumAbbrevs - The total number of abbreviations.
+ unsigned NumAbbrevs;
+
+ /// NumRecords - The total number of records these blocks contain, and the
+ /// number that are abbreviated.
+ unsigned NumRecords, NumAbbreviatedRecords;
+
+ /// CodeFreq - Keep track of the number of times we see each code.
+ std::vector<PerRecordStats> CodeFreq;
+
+ PerBlockIDStats()
+ : NumInstances(0), NumBits(0),
+ NumSubBlocks(0), NumAbbrevs(0), NumRecords(0), NumAbbreviatedRecords(0) {}
+};
+
+static std::map<unsigned, PerBlockIDStats> BlockIDStats;
+
+
+
+/// Error - All bitcode analysis errors go through this function, making this a
+/// good place to breakpoint if debugging.
+static bool Error(const std::string &Err) {
+ errs() << Err << "\n";
+ return true;
+}
+
+/// ParseBlock - Read a block, updating statistics, etc.
+static bool ParseBlock(BitstreamCursor &Stream, unsigned BlockID,
+ unsigned IndentLevel) {
+ std::string Indent(IndentLevel*2, ' ');
+ uint64_t BlockBitStart = Stream.GetCurrentBitNo();
+
+ // Get the statistics for this BlockID.
+ PerBlockIDStats &BlockStats = BlockIDStats[BlockID];
+
+ BlockStats.NumInstances++;
+
+ // BLOCKINFO is a special part of the stream.
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
+ if (Dump) outs() << Indent << "<BLOCKINFO_BLOCK/>\n";
+ if (Stream.ReadBlockInfoBlock())
+ return Error("Malformed BlockInfoBlock");
+ uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
+ BlockStats.NumBits += BlockBitEnd-BlockBitStart;
+ return false;
+ }
+
+ unsigned NumWords = 0;
+ if (Stream.EnterSubBlock(BlockID, &NumWords))
+ return Error("Malformed block record");
+
+ const char *BlockName = 0;
+ if (Dump) {
+ outs() << Indent << "<";
+ if ((BlockName = GetBlockName(BlockID, *Stream.getBitStreamReader())))
+ outs() << BlockName;
+ else
+ outs() << "UnknownBlock" << BlockID;
+
+ if (NonSymbolic && BlockName)
+ outs() << " BlockID=" << BlockID;
+
+ outs() << " NumWords=" << NumWords
+ << " BlockCodeSize=" << Stream.getAbbrevIDWidth() << ">\n";
+ }
+
+ SmallVector<uint64_t, 64> Record;
+
+ // Read all the records for this block.
+ while (1) {
+ if (Stream.AtEndOfStream())
+ return Error("Premature end of bitstream");
+
+ uint64_t RecordStartBit = Stream.GetCurrentBitNo();
+
+ BitstreamEntry Entry =
+ Stream.advance(BitstreamCursor::AF_DontAutoprocessAbbrevs);
+
+ switch (Entry.Kind) {
+ case BitstreamEntry::Error:
+ return Error("malformed bitcode file");
+ case BitstreamEntry::EndBlock: {
+ uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
+ BlockStats.NumBits += BlockBitEnd-BlockBitStart;
+ if (Dump) {
+ outs() << Indent << "</";
+ if (BlockName)
+ outs() << BlockName << ">\n";
+ else
+ outs() << "UnknownBlock" << BlockID << ">\n";
+ }
+ return false;
+ }
+
+ case BitstreamEntry::SubBlock: {
+ uint64_t SubBlockBitStart = Stream.GetCurrentBitNo();
+ if (ParseBlock(Stream, Entry.ID, IndentLevel+1))
+ return true;
+ ++BlockStats.NumSubBlocks;
+ uint64_t SubBlockBitEnd = Stream.GetCurrentBitNo();
+
+ // Don't include subblock sizes in the size of this block.
+ BlockBitStart += SubBlockBitEnd-SubBlockBitStart;
+ continue;
+ }
+ case BitstreamEntry::Record:
+ // The interesting case.
+ break;
+ }
+
+ if (Entry.ID == bitc::DEFINE_ABBREV) {
+ Stream.ReadAbbrevRecord();
+ ++BlockStats.NumAbbrevs;
+ continue;
+ }
+
+ Record.clear();
+
+ ++BlockStats.NumRecords;
+
+ StringRef Blob;
+ unsigned Code = Stream.readRecord(Entry.ID, Record, &Blob);
+
+ // Increment the # occurrences of this code.
+ if (BlockStats.CodeFreq.size() <= Code)
+ BlockStats.CodeFreq.resize(Code+1);
+ BlockStats.CodeFreq[Code].NumInstances++;
+ BlockStats.CodeFreq[Code].TotalBits +=
+ Stream.GetCurrentBitNo()-RecordStartBit;
+ if (Entry.ID != bitc::UNABBREV_RECORD) {
+ BlockStats.CodeFreq[Code].NumAbbrev++;
+ ++BlockStats.NumAbbreviatedRecords;
+ }
+
+ if (Dump) {
+ outs() << Indent << " <";
+ if (const char *CodeName =
+ GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
+ outs() << CodeName;
+ else
+ outs() << "UnknownCode" << Code;
+ if (NonSymbolic &&
+ GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
+ outs() << " codeid=" << Code;
+ if (Entry.ID != bitc::UNABBREV_RECORD)
+ outs() << " abbrevid=" << Entry.ID;
+
+ for (unsigned i = 0, e = Record.size(); i != e; ++i)
+ outs() << " op" << i << "=" << (int64_t)Record[i];
+
+ outs() << "/>";
+
+ if (Blob.data()) {
+ outs() << " blob data = ";
+ bool BlobIsPrintable = true;
+ for (unsigned i = 0, e = Blob.size(); i != e; ++i)
+ if (!isprint(static_cast<unsigned char>(Blob[i]))) {
+ BlobIsPrintable = false;
+ break;
+ }
+
+ if (BlobIsPrintable)
+ outs() << "'" << Blob << "'";
+ else
+ outs() << "unprintable, " << Blob.size() << " bytes.";
+ }
+
+ outs() << "\n";
+ }
+ }
+}
+
+static void PrintSize(double Bits) {
+ outs() << format("%.2f/%.2fB/%luW", Bits, Bits/8,(unsigned long)(Bits/32));
+}
+static void PrintSize(uint64_t Bits) {
+ outs() << format("%lub/%.2fB/%luW", (unsigned long)Bits,
+ (double)Bits/8, (unsigned long)(Bits/32));
+}
+