diff options
Diffstat (limited to 'tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp')
| -rw-r--r-- | tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp | 176 |
1 files changed, 91 insertions, 85 deletions
diff --git a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp index 8109ca4..99479a4 100644 --- a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp +++ b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp @@ -37,12 +37,11 @@ #include "llvm/Support/ManagedStatic.h" #include "llvm/Support/MemoryBuffer.h" #include "llvm/Support/PrettyStackTrace.h" -#include "llvm/Support/raw_ostream.h" #include "llvm/Support/Signals.h" +#include "llvm/Support/raw_ostream.h" #include "llvm/Support/system_error.h" - -#include <map> #include <algorithm> +#include <map> using namespace llvm; static cl::opt<std::string> @@ -99,16 +98,17 @@ static const char *GetBlockName(unsigned BlockID, 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::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"; + 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"; } } @@ -150,7 +150,7 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID, 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"; + 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"; @@ -160,7 +160,9 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID, case bitc::PARAMATTR_BLOCK_ID: switch (CodeID) { default: return 0; - case bitc::PARAMATTR_CODE_ENTRY: return "ENTRY"; + 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) { @@ -319,10 +321,10 @@ static bool Error(const std::string &Err) { } /// ParseBlock - Read a block, updating statistics, etc. -static bool ParseBlock(BitstreamCursor &Stream, unsigned IndentLevel) { +static bool ParseBlock(BitstreamCursor &Stream, unsigned BlockID, + unsigned IndentLevel) { std::string Indent(IndentLevel*2, ' '); uint64_t BlockBitStart = Stream.GetCurrentBitNo(); - unsigned BlockID = Stream.ReadSubBlockID(); // Get the statistics for this BlockID. PerBlockIDStats &BlockStats = BlockIDStats[BlockID]; @@ -355,7 +357,7 @@ static bool ParseBlock(BitstreamCursor &Stream, unsigned IndentLevel) { outs() << " BlockID=" << BlockID; outs() << " NumWords=" << NumWords - << " BlockCodeSize=" << Stream.GetAbbrevIDWidth() << ">\n"; + << " BlockCodeSize=" << Stream.getAbbrevIDWidth() << ">\n"; } SmallVector<uint64_t, 64> Record; @@ -367,12 +369,13 @@ static bool ParseBlock(BitstreamCursor &Stream, unsigned IndentLevel) { uint64_t RecordStartBit = Stream.GetCurrentBitNo(); - // Read the code for this record. - unsigned AbbrevID = Stream.ReadCode(); - switch (AbbrevID) { - case bitc::END_BLOCK: { - if (Stream.ReadBlockEnd()) - return Error("Error at end of block"); + 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) { @@ -384,80 +387,81 @@ static bool ParseBlock(BitstreamCursor &Stream, unsigned IndentLevel) { } return false; } - case bitc::ENTER_SUBBLOCK: { + + case BitstreamEntry::SubBlock: { uint64_t SubBlockBitStart = Stream.GetCurrentBitNo(); - if (ParseBlock(Stream, IndentLevel+1)) + 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; } - case bitc::DEFINE_ABBREV: + + if (Entry.ID == bitc::DEFINE_ABBREV) { Stream.ReadAbbrevRecord(); ++BlockStats.NumAbbrevs; - break; - default: - Record.clear(); - - ++BlockStats.NumRecords; - if (AbbrevID != bitc::UNABBREV_RECORD) - ++BlockStats.NumAbbreviatedRecords; - - const char *BlobStart = 0; - unsigned BlobLen = 0; - unsigned Code = Stream.ReadRecord(AbbrevID, Record, BlobStart, BlobLen); - - - - // 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 (AbbrevID != bitc::UNABBREV_RECORD) - BlockStats.CodeFreq[Code].NumAbbrev++; + 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 && + if (Dump) { + outs() << Indent << " <"; + if (const char *CodeName = GetCodeName(Code, BlockID, *Stream.getBitStreamReader())) - outs() << " codeid=" << Code; - if (AbbrevID != bitc::UNABBREV_RECORD) - outs() << " abbrevid=" << AbbrevID; - - for (unsigned i = 0, e = Record.size(); i != e; ++i) - outs() << " op" << i << "=" << (int64_t)Record[i]; - - outs() << "/>"; - - if (BlobStart) { - outs() << " blob data = "; - bool BlobIsPrintable = true; - for (unsigned i = 0; i != BlobLen; ++i) - if (!isprint(BlobStart[i])) { - BlobIsPrintable = false; - break; - } - - if (BlobIsPrintable) - outs() << "'" << std::string(BlobStart, BlobStart+BlobLen) <<"'"; - else - outs() << "unprintable, " << BlobLen << " bytes."; - } - - outs() << "\n"; + 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."; } - break; + outs() << "\n"; } } } @@ -520,7 +524,9 @@ static int AnalyzeBitcode() { if (Code != bitc::ENTER_SUBBLOCK) return Error("Invalid record at top-level"); - if (ParseBlock(Stream, 0)) + unsigned BlockID = Stream.ReadSubBlockID(); + + if (ParseBlock(Stream, BlockID, 0)) return true; ++NumTopBlocks; } |
