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-rw-r--r--contrib/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp625
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diff --git a/contrib/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/contrib/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
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index 9c0d675..0000000
--- a/contrib/llvm/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
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@@ -1,625 +0,0 @@
-//===-- llvm-bcanalyzer.cpp - Bitcode Analyzer --------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This tool may be invoked in the following manner:
-// llvm-bcanalyzer [options] - Read LLVM bitcode from stdin
-// llvm-bcanalyzer [options] x.bc - Read LLVM bitcode from the x.bc file
-//
-// Options:
-// --help - Output information about command line switches
-// --dump - Dump low-level bitcode structure in readable format
-//
-// This tool provides analytical information about a bitcode file. It is
-// intended as an aid to developers of bitcode reading and writing software. It
-// produces on std::out a summary of the bitcode file that shows various
-// statistics about the contents of the file. By default this information is
-// detailed and contains information about individual bitcode blocks and the
-// functions in the module.
-// The tool is also able to print a bitcode file in a straight forward text
-// format that shows the containment and relationships of the information in
-// the bitcode file (-dump option).
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Bitcode/BitstreamReader.h"
-#include "llvm/Bitcode/LLVMBitCodes.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/System/Signals.h"
-#include <cstdio>
-#include <map>
-#include <algorithm>
-using namespace llvm;
-
-static cl::opt<std::string>
- InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
-
-static cl::opt<bool> Dump("dump", cl::desc("Dump low level bitcode trace"));
-
-//===----------------------------------------------------------------------===//
-// Bitcode specific analysis.
-//===----------------------------------------------------------------------===//
-
-static cl::opt<bool> NoHistogram("disable-histogram",
- cl::desc("Do not print per-code histogram"));
-
-static cl::opt<bool>
-NonSymbolic("non-symbolic",
- cl::desc("Emit numberic info in dump even if"
- " symbolic info is available"));
-
-/// CurStreamType - If we can sniff the flavor of this stream, we can produce
-/// better dump info.
-static enum {
- UnknownBitstream,
- LLVMIRBitstream
-} 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::TYPE_BLOCK_ID: return "TYPE_BLOCK";
- case bitc::CONSTANTS_BLOCK_ID: return "CONSTANTS_BLOCK";
- case bitc::FUNCTION_BLOCK_ID: return "FUNCTION_BLOCK";
- case bitc::TYPE_SYMTAB_BLOCK_ID: return "TYPE_SYMTAB";
- 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";
- }
-}
-
-/// 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";
- 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: return "ENTRY";
- }
- case bitc::TYPE_BLOCK_ID:
- 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_FUNCTION: return "FUNCTION";
- case bitc::TYPE_CODE_STRUCT: return "STRUCT";
- 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::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::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_UNWIND: return "INST_UNWIND";
- case bitc::FUNC_CODE_INST_UNREACHABLE: return "INST_UNREACHABLE";
-
- case bitc::FUNC_CODE_INST_PHI: return "INST_PHI";
- case bitc::FUNC_CODE_INST_MALLOC: return "INST_MALLOC";
- case bitc::FUNC_CODE_INST_FREE: return "INST_FREE";
- case bitc::FUNC_CODE_INST_ALLOCA: return "INST_ALLOCA";
- case bitc::FUNC_CODE_INST_LOAD: return "INST_LOAD";
- case bitc::FUNC_CODE_INST_STORE: return "INST_STORE";
- case bitc::FUNC_CODE_INST_CALL: return "INST_CALL";
- case bitc::FUNC_CODE_INST_VAARG: return "INST_VAARG";
- case bitc::FUNC_CODE_INST_STORE2: return "INST_STORE2";
- case bitc::FUNC_CODE_INST_GETRESULT: return "INST_GETRESULT";
- 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: return "DEBUG_LOC";
- case bitc::FUNC_CODE_DEBUG_LOC_AGAIN: return "DEBUG_LOC_AGAIN";
- case bitc::FUNC_CODE_INST_CALL2: return "INST_CALL2";
- case bitc::FUNC_CODE_DEBUG_LOC2: return "DEBUG_LOC2";
- }
- case bitc::TYPE_SYMTAB_BLOCK_ID:
- switch (CodeID) {
- default: return 0;
- case bitc::TST_CODE_ENTRY: return "ENTRY";
- }
- 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_NODE: return "METADATA_NODE";
- case bitc::METADATA_FN_NODE: return "METADATA_FN_NODE";
- case bitc::METADATA_NAME: return "METADATA_NAME";
- case bitc::METADATA_NAMED_NODE: return "METADATA_NAMED_NODE";
- case bitc::METADATA_KIND: return "METADATA_KIND";
- case bitc::METADATA_ATTACHMENT: return "METADATA_ATTACHMENT";
- case bitc::METADATA_NODE2: return "METADATA_NODE2";
- case bitc::METADATA_FN_NODE2: return "METADATA_FN_NODE2";
- case bitc::METADATA_NAMED_NODE2: return "METADATA_NAMED_NODE2";
- case bitc::METADATA_ATTACHMENT2: return "METADATA_ATTACHMENT2";
- }
- }
-}
-
-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 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];
-
- BlockStats.NumInstances++;
-
- // BLOCKINFO is a special part of the stream.
- if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
- if (Dump) errs() << 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) {
- errs() << Indent << "<";
- if ((BlockName = GetBlockName(BlockID, *Stream.getBitStreamReader())))
- errs() << BlockName;
- else
- errs() << "UnknownBlock" << BlockID;
-
- if (NonSymbolic && BlockName)
- errs() << " BlockID=" << BlockID;
-
- errs() << " 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();
-
- // 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");
- uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
- BlockStats.NumBits += BlockBitEnd-BlockBitStart;
- if (Dump) {
- errs() << Indent << "</";
- if (BlockName)
- errs() << BlockName << ">\n";
- else
- errs() << "UnknownBlock" << BlockID << ">\n";
- }
- return false;
- }
- case bitc::ENTER_SUBBLOCK: {
- uint64_t SubBlockBitStart = Stream.GetCurrentBitNo();
- if (ParseBlock(Stream, 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;
- break;
- }
- case 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++;
-
- if (Dump) {
- errs() << Indent << " <";
- if (const char *CodeName =
- GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
- errs() << CodeName;
- else
- errs() << "UnknownCode" << Code;
- if (NonSymbolic &&
- GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
- errs() << " codeid=" << Code;
- if (AbbrevID != bitc::UNABBREV_RECORD)
- errs() << " abbrevid=" << AbbrevID;
-
- for (unsigned i = 0, e = Record.size(); i != e; ++i)
- errs() << " op" << i << "=" << (int64_t)Record[i];
-
- errs() << "/>";
-
- if (BlobStart) {
- errs() << " blob data = ";
- bool BlobIsPrintable = true;
- for (unsigned i = 0; i != BlobLen; ++i)
- if (!isprint(BlobStart[i])) {
- BlobIsPrintable = false;
- break;
- }
-
- if (BlobIsPrintable)
- errs() << "'" << std::string(BlobStart, BlobStart+BlobLen) <<"'";
- else
- errs() << "unprintable, " << BlobLen << " bytes.";
- }
-
- errs() << "\n";
- }
-
- break;
- }
- }
-}
-
-static void PrintSize(double Bits) {
- fprintf(stderr, "%.2f/%.2fB/%lluW", Bits, Bits/8,(unsigned long long)Bits/32);
-}
-static void PrintSize(uint64_t Bits) {
- fprintf(stderr, "%llub/%.2fB/%lluW", (unsigned long long)Bits,
- (double)Bits/8, (unsigned long long)Bits/32);
-}
-
-
-/// AnalyzeBitcode - Analyze the bitcode file specified by InputFilename.
-static int AnalyzeBitcode() {
- // Read the input file.
- MemoryBuffer *MemBuf = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str());
-
- if (MemBuf == 0)
- return Error("Error reading '" + InputFilename + "'.");
-
- if (MemBuf->getBufferSize() & 3)
- return Error("Bitcode stream should be a multiple of 4 bytes in length");
-
- unsigned char *BufPtr = (unsigned char *)MemBuf->getBufferStart();
- unsigned char *EndBufPtr = BufPtr+MemBuf->getBufferSize();
-
- // If we have a wrapper header, parse it and ignore the non-bc file contents.
- // The magic number is 0x0B17C0DE stored in little endian.
- if (isBitcodeWrapper(BufPtr, EndBufPtr))
- if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr))
- return Error("Invalid bitcode wrapper header");
-
- BitstreamReader StreamFile(BufPtr, EndBufPtr);
- BitstreamCursor Stream(StreamFile);
- StreamFile.CollectBlockInfoNames();
-
- // Read the stream signature.
- char Signature[6];
- Signature[0] = Stream.Read(8);
- Signature[1] = Stream.Read(8);
- Signature[2] = Stream.Read(4);
- Signature[3] = Stream.Read(4);
- Signature[4] = Stream.Read(4);
- Signature[5] = Stream.Read(4);
-
- // Autodetect the file contents, if it is one we know.
- CurStreamType = UnknownBitstream;
- if (Signature[0] == 'B' && Signature[1] == 'C' &&
- Signature[2] == 0x0 && Signature[3] == 0xC &&
- Signature[4] == 0xE && Signature[5] == 0xD)
- CurStreamType = LLVMIRBitstream;
-
- unsigned NumTopBlocks = 0;
-
- // Parse the top-level structure. We only allow blocks at the top-level.
- while (!Stream.AtEndOfStream()) {
- unsigned Code = Stream.ReadCode();
- if (Code != bitc::ENTER_SUBBLOCK)
- return Error("Invalid record at top-level");
-
- if (ParseBlock(Stream, 0))
- return true;
- ++NumTopBlocks;
- }
-
- if (Dump) errs() << "\n\n";
-
- uint64_t BufferSizeBits = (EndBufPtr-BufPtr)*CHAR_BIT;
- // Print a summary of the read file.
- errs() << "Summary of " << InputFilename << ":\n";
- errs() << " Total size: ";
- PrintSize(BufferSizeBits);
- errs() << "\n";
- errs() << " Stream type: ";
- switch (CurStreamType) {
- default: assert(0 && "Unknown bitstream type");
- case UnknownBitstream: errs() << "unknown\n"; break;
- case LLVMIRBitstream: errs() << "LLVM IR\n"; break;
- }
- errs() << " # Toplevel Blocks: " << NumTopBlocks << "\n";
- errs() << "\n";
-
- // Emit per-block stats.
- errs() << "Per-block Summary:\n";
- for (std::map<unsigned, PerBlockIDStats>::iterator I = BlockIDStats.begin(),
- E = BlockIDStats.end(); I != E; ++I) {
- errs() << " Block ID #" << I->first;
- if (const char *BlockName = GetBlockName(I->first, StreamFile))
- errs() << " (" << BlockName << ")";
- errs() << ":\n";
-
- const PerBlockIDStats &Stats = I->second;
- errs() << " Num Instances: " << Stats.NumInstances << "\n";
- errs() << " Total Size: ";
- PrintSize(Stats.NumBits);
- errs() << "\n";
- double pct = (Stats.NumBits * 100.0) / BufferSizeBits;
- errs() << " Percent of file: " << format("%2.4f%%", pct) << "\n";
- if (Stats.NumInstances > 1) {
- errs() << " Average Size: ";
- PrintSize(Stats.NumBits/(double)Stats.NumInstances);
- errs() << "\n";
- errs() << " Tot/Avg SubBlocks: " << Stats.NumSubBlocks << "/"
- << Stats.NumSubBlocks/(double)Stats.NumInstances << "\n";
- errs() << " Tot/Avg Abbrevs: " << Stats.NumAbbrevs << "/"
- << Stats.NumAbbrevs/(double)Stats.NumInstances << "\n";
- errs() << " Tot/Avg Records: " << Stats.NumRecords << "/"
- << Stats.NumRecords/(double)Stats.NumInstances << "\n";
- } else {
- errs() << " Num SubBlocks: " << Stats.NumSubBlocks << "\n";
- errs() << " Num Abbrevs: " << Stats.NumAbbrevs << "\n";
- errs() << " Num Records: " << Stats.NumRecords << "\n";
- }
- if (Stats.NumRecords) {
- double pct = (Stats.NumAbbreviatedRecords * 100.0) / Stats.NumRecords;
- errs() << " Percent Abbrevs: " << format("%2.4f%%", pct) << "\n";
- }
- errs() << "\n";
-
- // Print a histogram of the codes we see.
- if (!NoHistogram && !Stats.CodeFreq.empty()) {
- std::vector<std::pair<unsigned, unsigned> > FreqPairs; // <freq,code>
- for (unsigned i = 0, e = Stats.CodeFreq.size(); i != e; ++i)
- if (unsigned Freq = Stats.CodeFreq[i].NumInstances)
- FreqPairs.push_back(std::make_pair(Freq, i));
- std::stable_sort(FreqPairs.begin(), FreqPairs.end());
- std::reverse(FreqPairs.begin(), FreqPairs.end());
-
- errs() << "\tRecord Histogram:\n";
- fprintf(stderr, "\t\t Count # Bits %% Abv Record Kind\n");
- for (unsigned i = 0, e = FreqPairs.size(); i != e; ++i) {
- const PerRecordStats &RecStats = Stats.CodeFreq[FreqPairs[i].second];
-
- fprintf(stderr, "\t\t%7d %9llu ", RecStats.NumInstances,
- (unsigned long long)RecStats.TotalBits);
-
- if (RecStats.NumAbbrev)
- fprintf(stderr, "%7.2f ",
- (double)RecStats.NumAbbrev/RecStats.NumInstances*100);
- else
- fprintf(stderr, " ");
-
- if (const char *CodeName =
- GetCodeName(FreqPairs[i].second, I->first, StreamFile))
- fprintf(stderr, "%s\n", CodeName);
- else
- fprintf(stderr, "UnknownCode%d\n", FreqPairs[i].second);
- }
- errs() << "\n";
-
- }
- }
- return 0;
-}
-
-
-int main(int argc, char **argv) {
- // Print a stack trace if we signal out.
- sys::PrintStackTraceOnErrorSignal();
- PrettyStackTraceProgram X(argc, argv);
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
- cl::ParseCommandLineOptions(argc, argv, "llvm-bcanalyzer file analyzer\n");
-
- return AnalyzeBitcode();
-}
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