1 //===-- llvm-bcanalyzer.cpp - Bitcode Analyzer --------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This tool may be invoked in the following manner:
11 // llvm-bcanalyzer [options] - Read LLVM bitcode from stdin
12 // llvm-bcanalyzer [options] x.bc - Read LLVM bitcode from the x.bc file
15 // --help - Output information about command line switches
16 // --dump - Dump low-level bitcode structure in readable format
18 // This tool provides analytical information about a bitcode file. It is
19 // intended as an aid to developers of bitcode reading and writing software. It
20 // produces on std::out a summary of the bitcode file that shows various
21 // statistics about the contents of the file. By default this information is
22 // detailed and contains information about individual bitcode blocks and the
23 // functions in the module.
24 // The tool is also able to print a bitcode file in a straight forward text
25 // format that shows the containment and relationships of the information in
26 // the bitcode file (-dump option).
28 //===----------------------------------------------------------------------===//
30 #include "llvm/Analysis/Verifier.h"
31 #include "llvm/Bitcode/BitstreamReader.h"
32 #include "llvm/Bitcode/LLVMBitCodes.h"
33 #include "llvm/Bitcode/ReaderWriter.h"
34 #include "llvm/Support/CommandLine.h"
35 #include "llvm/Support/ManagedStatic.h"
36 #include "llvm/Support/MemoryBuffer.h"
37 #include "llvm/Support/PrettyStackTrace.h"
38 #include "llvm/Support/raw_ostream.h"
39 #include "llvm/System/Signals.h"
45 static cl::opt<std::string>
46 InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
48 static cl::opt<std::string>
49 OutputFilename("-o", cl::init("-"), cl::desc("<output file>"));
51 static cl::opt<bool> Dump("dump", cl::desc("Dump low level bitcode trace"));
53 //===----------------------------------------------------------------------===//
54 // Bitcode specific analysis.
55 //===----------------------------------------------------------------------===//
57 static cl::opt<bool> NoHistogram("disable-histogram",
58 cl::desc("Do not print per-code histogram"));
61 NonSymbolic("non-symbolic",
62 cl::desc("Emit numberic info in dump even if"
63 " symbolic info is available"));
65 /// CurStreamType - If we can sniff the flavor of this stream, we can produce
73 /// GetBlockName - Return a symbolic block name if known, otherwise return
75 static const char *GetBlockName(unsigned BlockID,
76 const BitstreamReader &StreamFile) {
77 // Standard blocks for all bitcode files.
78 if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
79 if (BlockID == bitc::BLOCKINFO_BLOCK_ID)
80 return "BLOCKINFO_BLOCK";
84 // Check to see if we have a blockinfo record for this block, with a name.
85 if (const BitstreamReader::BlockInfo *Info =
86 StreamFile.getBlockInfo(BlockID)) {
87 if (!Info->Name.empty())
88 return Info->Name.c_str();
92 if (CurStreamType != LLVMIRBitstream) return 0;
96 case bitc::MODULE_BLOCK_ID: return "MODULE_BLOCK";
97 case bitc::PARAMATTR_BLOCK_ID: return "PARAMATTR_BLOCK";
98 case bitc::TYPE_BLOCK_ID: return "TYPE_BLOCK";
99 case bitc::CONSTANTS_BLOCK_ID: return "CONSTANTS_BLOCK";
100 case bitc::FUNCTION_BLOCK_ID: return "FUNCTION_BLOCK";
101 case bitc::TYPE_SYMTAB_BLOCK_ID: return "TYPE_SYMTAB";
102 case bitc::VALUE_SYMTAB_BLOCK_ID: return "VALUE_SYMTAB";
103 case bitc::METADATA_BLOCK_ID: return "METADATA_BLOCK";
104 case bitc::METADATA_ATTACHMENT_ID: return "METADATA_ATTACHMENT_BLOCK";
108 /// GetCodeName - Return a symbolic code name if known, otherwise return
110 static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
111 const BitstreamReader &StreamFile) {
112 // Standard blocks for all bitcode files.
113 if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
114 if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
117 case bitc::BLOCKINFO_CODE_SETBID: return "SETBID";
118 case bitc::BLOCKINFO_CODE_BLOCKNAME: return "BLOCKNAME";
119 case bitc::BLOCKINFO_CODE_SETRECORDNAME: return "SETRECORDNAME";
125 // Check to see if we have a blockinfo record for this record, with a name.
126 if (const BitstreamReader::BlockInfo *Info =
127 StreamFile.getBlockInfo(BlockID)) {
128 for (unsigned i = 0, e = Info->RecordNames.size(); i != e; ++i)
129 if (Info->RecordNames[i].first == CodeID)
130 return Info->RecordNames[i].second.c_str();
134 if (CurStreamType != LLVMIRBitstream) return 0;
138 case bitc::MODULE_BLOCK_ID:
141 case bitc::MODULE_CODE_VERSION: return "VERSION";
142 case bitc::MODULE_CODE_TRIPLE: return "TRIPLE";
143 case bitc::MODULE_CODE_DATALAYOUT: return "DATALAYOUT";
144 case bitc::MODULE_CODE_ASM: return "ASM";
145 case bitc::MODULE_CODE_SECTIONNAME: return "SECTIONNAME";
146 case bitc::MODULE_CODE_DEPLIB: return "DEPLIB";
147 case bitc::MODULE_CODE_GLOBALVAR: return "GLOBALVAR";
148 case bitc::MODULE_CODE_FUNCTION: return "FUNCTION";
149 case bitc::MODULE_CODE_ALIAS: return "ALIAS";
150 case bitc::MODULE_CODE_PURGEVALS: return "PURGEVALS";
151 case bitc::MODULE_CODE_GCNAME: return "GCNAME";
153 case bitc::PARAMATTR_BLOCK_ID:
156 case bitc::PARAMATTR_CODE_ENTRY: return "ENTRY";
158 case bitc::TYPE_BLOCK_ID:
161 case bitc::TYPE_CODE_NUMENTRY: return "NUMENTRY";
162 case bitc::TYPE_CODE_VOID: return "VOID";
163 case bitc::TYPE_CODE_FLOAT: return "FLOAT";
164 case bitc::TYPE_CODE_DOUBLE: return "DOUBLE";
165 case bitc::TYPE_CODE_LABEL: return "LABEL";
166 case bitc::TYPE_CODE_OPAQUE: return "OPAQUE";
167 case bitc::TYPE_CODE_INTEGER: return "INTEGER";
168 case bitc::TYPE_CODE_POINTER: return "POINTER";
169 case bitc::TYPE_CODE_FUNCTION: return "FUNCTION";
170 case bitc::TYPE_CODE_STRUCT: return "STRUCT";
171 case bitc::TYPE_CODE_ARRAY: return "ARRAY";
172 case bitc::TYPE_CODE_VECTOR: return "VECTOR";
173 case bitc::TYPE_CODE_X86_FP80: return "X86_FP80";
174 case bitc::TYPE_CODE_FP128: return "FP128";
175 case bitc::TYPE_CODE_PPC_FP128: return "PPC_FP128";
176 case bitc::TYPE_CODE_METADATA: return "METADATA";
179 case bitc::CONSTANTS_BLOCK_ID:
182 case bitc::CST_CODE_SETTYPE: return "SETTYPE";
183 case bitc::CST_CODE_NULL: return "NULL";
184 case bitc::CST_CODE_UNDEF: return "UNDEF";
185 case bitc::CST_CODE_INTEGER: return "INTEGER";
186 case bitc::CST_CODE_WIDE_INTEGER: return "WIDE_INTEGER";
187 case bitc::CST_CODE_FLOAT: return "FLOAT";
188 case bitc::CST_CODE_AGGREGATE: return "AGGREGATE";
189 case bitc::CST_CODE_STRING: return "STRING";
190 case bitc::CST_CODE_CSTRING: return "CSTRING";
191 case bitc::CST_CODE_CE_BINOP: return "CE_BINOP";
192 case bitc::CST_CODE_CE_CAST: return "CE_CAST";
193 case bitc::CST_CODE_CE_GEP: return "CE_GEP";
194 case bitc::CST_CODE_CE_INBOUNDS_GEP: return "CE_INBOUNDS_GEP";
195 case bitc::CST_CODE_CE_SELECT: return "CE_SELECT";
196 case bitc::CST_CODE_CE_EXTRACTELT: return "CE_EXTRACTELT";
197 case bitc::CST_CODE_CE_INSERTELT: return "CE_INSERTELT";
198 case bitc::CST_CODE_CE_SHUFFLEVEC: return "CE_SHUFFLEVEC";
199 case bitc::CST_CODE_CE_CMP: return "CE_CMP";
200 case bitc::CST_CODE_INLINEASM: return "INLINEASM";
201 case bitc::CST_CODE_CE_SHUFVEC_EX: return "CE_SHUFVEC_EX";
203 case bitc::FUNCTION_BLOCK_ID:
206 case bitc::FUNC_CODE_DECLAREBLOCKS: return "DECLAREBLOCKS";
208 case bitc::FUNC_CODE_INST_BINOP: return "INST_BINOP";
209 case bitc::FUNC_CODE_INST_CAST: return "INST_CAST";
210 case bitc::FUNC_CODE_INST_GEP: return "INST_GEP";
211 case bitc::FUNC_CODE_INST_INBOUNDS_GEP: return "INST_INBOUNDS_GEP";
212 case bitc::FUNC_CODE_INST_SELECT: return "INST_SELECT";
213 case bitc::FUNC_CODE_INST_EXTRACTELT: return "INST_EXTRACTELT";
214 case bitc::FUNC_CODE_INST_INSERTELT: return "INST_INSERTELT";
215 case bitc::FUNC_CODE_INST_SHUFFLEVEC: return "INST_SHUFFLEVEC";
216 case bitc::FUNC_CODE_INST_CMP: return "INST_CMP";
218 case bitc::FUNC_CODE_INST_RET: return "INST_RET";
219 case bitc::FUNC_CODE_INST_BR: return "INST_BR";
220 case bitc::FUNC_CODE_INST_SWITCH: return "INST_SWITCH";
221 case bitc::FUNC_CODE_INST_INVOKE: return "INST_INVOKE";
222 case bitc::FUNC_CODE_INST_UNWIND: return "INST_UNWIND";
223 case bitc::FUNC_CODE_INST_UNREACHABLE: return "INST_UNREACHABLE";
225 case bitc::FUNC_CODE_INST_PHI: return "INST_PHI";
226 case bitc::FUNC_CODE_INST_MALLOC: return "INST_MALLOC";
227 case bitc::FUNC_CODE_INST_FREE: return "INST_FREE";
228 case bitc::FUNC_CODE_INST_ALLOCA: return "INST_ALLOCA";
229 case bitc::FUNC_CODE_INST_LOAD: return "INST_LOAD";
230 case bitc::FUNC_CODE_INST_STORE: return "INST_STORE";
231 case bitc::FUNC_CODE_INST_CALL: return "INST_CALL";
232 case bitc::FUNC_CODE_INST_VAARG: return "INST_VAARG";
233 case bitc::FUNC_CODE_INST_STORE2: return "INST_STORE2";
234 case bitc::FUNC_CODE_INST_GETRESULT: return "INST_GETRESULT";
235 case bitc::FUNC_CODE_INST_EXTRACTVAL: return "INST_EXTRACTVAL";
236 case bitc::FUNC_CODE_INST_INSERTVAL: return "INST_INSERTVAL";
237 case bitc::FUNC_CODE_INST_CMP2: return "INST_CMP2";
238 case bitc::FUNC_CODE_INST_VSELECT: return "INST_VSELECT";
240 case bitc::TYPE_SYMTAB_BLOCK_ID:
243 case bitc::TST_CODE_ENTRY: return "ENTRY";
245 case bitc::VALUE_SYMTAB_BLOCK_ID:
248 case bitc::VST_CODE_ENTRY: return "ENTRY";
249 case bitc::VST_CODE_BBENTRY: return "BBENTRY";
251 case bitc::METADATA_ATTACHMENT_ID:
254 case bitc::METADATA_ATTACHMENT: return "METADATA_ATTACHMENT";
256 case bitc::METADATA_BLOCK_ID:
259 case bitc::METADATA_STRING: return "MDSTRING";
260 case bitc::METADATA_NODE: return "MDNODE";
261 case bitc::METADATA_NAME: return "METADATA_NAME";
262 case bitc::METADATA_NAMED_NODE: return "NAMEDMDNODE";
263 case bitc::METADATA_KIND: return "METADATA_KIND";
268 struct PerRecordStats {
269 unsigned NumInstances;
273 PerRecordStats() : NumInstances(0), NumAbbrev(0), TotalBits(0) {}
276 struct PerBlockIDStats {
277 /// NumInstances - This the number of times this block ID has been seen.
278 unsigned NumInstances;
280 /// NumBits - The total size in bits of all of these blocks.
283 /// NumSubBlocks - The total number of blocks these blocks contain.
284 unsigned NumSubBlocks;
286 /// NumAbbrevs - The total number of abbreviations.
289 /// NumRecords - The total number of records these blocks contain, and the
290 /// number that are abbreviated.
291 unsigned NumRecords, NumAbbreviatedRecords;
293 /// CodeFreq - Keep track of the number of times we see each code.
294 std::vector<PerRecordStats> CodeFreq;
297 : NumInstances(0), NumBits(0),
298 NumSubBlocks(0), NumAbbrevs(0), NumRecords(0), NumAbbreviatedRecords(0) {}
301 static std::map<unsigned, PerBlockIDStats> BlockIDStats;
305 /// Error - All bitcode analysis errors go through this function, making this a
306 /// good place to breakpoint if debugging.
307 static bool Error(const std::string &Err) {
308 errs() << Err << "\n";
312 /// ParseBlock - Read a block, updating statistics, etc.
313 static bool ParseBlock(BitstreamCursor &Stream, unsigned IndentLevel) {
314 std::string Indent(IndentLevel*2, ' ');
315 uint64_t BlockBitStart = Stream.GetCurrentBitNo();
316 unsigned BlockID = Stream.ReadSubBlockID();
318 // Get the statistics for this BlockID.
319 PerBlockIDStats &BlockStats = BlockIDStats[BlockID];
321 BlockStats.NumInstances++;
323 // BLOCKINFO is a special part of the stream.
324 if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
325 if (Dump) errs() << Indent << "<BLOCKINFO_BLOCK/>\n";
326 if (Stream.ReadBlockInfoBlock())
327 return Error("Malformed BlockInfoBlock");
328 uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
329 BlockStats.NumBits += BlockBitEnd-BlockBitStart;
333 unsigned NumWords = 0;
334 if (Stream.EnterSubBlock(BlockID, &NumWords))
335 return Error("Malformed block record");
337 const char *BlockName = 0;
339 errs() << Indent << "<";
340 if ((BlockName = GetBlockName(BlockID, *Stream.getBitStreamReader())))
343 errs() << "UnknownBlock" << BlockID;
345 if (NonSymbolic && BlockName)
346 errs() << " BlockID=" << BlockID;
348 errs() << " NumWords=" << NumWords
349 << " BlockCodeSize=" << Stream.GetAbbrevIDWidth() << ">\n";
352 SmallVector<uint64_t, 64> Record;
354 // Read all the records for this block.
356 if (Stream.AtEndOfStream())
357 return Error("Premature end of bitstream");
359 uint64_t RecordStartBit = Stream.GetCurrentBitNo();
361 // Read the code for this record.
362 unsigned AbbrevID = Stream.ReadCode();
364 case bitc::END_BLOCK: {
365 if (Stream.ReadBlockEnd())
366 return Error("Error at end of block");
367 uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
368 BlockStats.NumBits += BlockBitEnd-BlockBitStart;
370 errs() << Indent << "</";
372 errs() << BlockName << ">\n";
374 errs() << "UnknownBlock" << BlockID << ">\n";
378 case bitc::ENTER_SUBBLOCK: {
379 uint64_t SubBlockBitStart = Stream.GetCurrentBitNo();
380 if (ParseBlock(Stream, IndentLevel+1))
382 ++BlockStats.NumSubBlocks;
383 uint64_t SubBlockBitEnd = Stream.GetCurrentBitNo();
385 // Don't include subblock sizes in the size of this block.
386 BlockBitStart += SubBlockBitEnd-SubBlockBitStart;
389 case bitc::DEFINE_ABBREV:
390 Stream.ReadAbbrevRecord();
391 ++BlockStats.NumAbbrevs;
396 ++BlockStats.NumRecords;
397 if (AbbrevID != bitc::UNABBREV_RECORD)
398 ++BlockStats.NumAbbreviatedRecords;
400 const char *BlobStart = 0;
401 unsigned BlobLen = 0;
402 unsigned Code = Stream.ReadRecord(AbbrevID, Record, BlobStart, BlobLen);
406 // Increment the # occurrences of this code.
407 if (BlockStats.CodeFreq.size() <= Code)
408 BlockStats.CodeFreq.resize(Code+1);
409 BlockStats.CodeFreq[Code].NumInstances++;
410 BlockStats.CodeFreq[Code].TotalBits +=
411 Stream.GetCurrentBitNo()-RecordStartBit;
412 if (AbbrevID != bitc::UNABBREV_RECORD)
413 BlockStats.CodeFreq[Code].NumAbbrev++;
416 errs() << Indent << " <";
417 if (const char *CodeName =
418 GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
421 errs() << "UnknownCode" << Code;
423 GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
424 errs() << " codeid=" << Code;
425 if (AbbrevID != bitc::UNABBREV_RECORD)
426 errs() << " abbrevid=" << AbbrevID;
428 for (unsigned i = 0, e = Record.size(); i != e; ++i)
429 errs() << " op" << i << "=" << (int64_t)Record[i];
434 errs() << " blob data = ";
435 bool BlobIsPrintable = true;
436 for (unsigned i = 0; i != BlobLen; ++i)
437 if (!isprint(BlobStart[i])) {
438 BlobIsPrintable = false;
443 errs() << "'" << std::string(BlobStart, BlobStart+BlobLen) <<"'";
445 errs() << "unprintable, " << BlobLen << " bytes.";
456 static void PrintSize(double Bits) {
457 fprintf(stderr, "%.2f/%.2fB/%lluW", Bits, Bits/8,(unsigned long long)Bits/32);
459 static void PrintSize(uint64_t Bits) {
460 fprintf(stderr, "%llub/%.2fB/%lluW", (unsigned long long)Bits,
461 (double)Bits/8, (unsigned long long)Bits/32);
465 /// AnalyzeBitcode - Analyze the bitcode file specified by InputFilename.
466 static int AnalyzeBitcode() {
467 // Read the input file.
468 MemoryBuffer *MemBuf = MemoryBuffer::getFileOrSTDIN(InputFilename.c_str());
471 return Error("Error reading '" + InputFilename + "'.");
473 if (MemBuf->getBufferSize() & 3)
474 return Error("Bitcode stream should be a multiple of 4 bytes in length");
476 unsigned char *BufPtr = (unsigned char *)MemBuf->getBufferStart();
477 unsigned char *EndBufPtr = BufPtr+MemBuf->getBufferSize();
479 // If we have a wrapper header, parse it and ignore the non-bc file contents.
480 // The magic number is 0x0B17C0DE stored in little endian.
481 if (isBitcodeWrapper(BufPtr, EndBufPtr))
482 if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr))
483 return Error("Invalid bitcode wrapper header");
485 BitstreamReader StreamFile(BufPtr, EndBufPtr);
486 BitstreamCursor Stream(StreamFile);
487 StreamFile.CollectBlockInfoNames();
489 // Read the stream signature.
491 Signature[0] = Stream.Read(8);
492 Signature[1] = Stream.Read(8);
493 Signature[2] = Stream.Read(4);
494 Signature[3] = Stream.Read(4);
495 Signature[4] = Stream.Read(4);
496 Signature[5] = Stream.Read(4);
498 // Autodetect the file contents, if it is one we know.
499 CurStreamType = UnknownBitstream;
500 if (Signature[0] == 'B' && Signature[1] == 'C' &&
501 Signature[2] == 0x0 && Signature[3] == 0xC &&
502 Signature[4] == 0xE && Signature[5] == 0xD)
503 CurStreamType = LLVMIRBitstream;
505 unsigned NumTopBlocks = 0;
507 // Parse the top-level structure. We only allow blocks at the top-level.
508 while (!Stream.AtEndOfStream()) {
509 unsigned Code = Stream.ReadCode();
510 if (Code != bitc::ENTER_SUBBLOCK)
511 return Error("Invalid record at top-level");
513 if (ParseBlock(Stream, 0))
518 if (Dump) errs() << "\n\n";
520 uint64_t BufferSizeBits = (EndBufPtr-BufPtr)*CHAR_BIT;
521 // Print a summary of the read file.
522 errs() << "Summary of " << InputFilename << ":\n";
523 errs() << " Total size: ";
524 PrintSize(BufferSizeBits);
526 errs() << " Stream type: ";
527 switch (CurStreamType) {
528 default: assert(0 && "Unknown bitstream type");
529 case UnknownBitstream: errs() << "unknown\n"; break;
530 case LLVMIRBitstream: errs() << "LLVM IR\n"; break;
532 errs() << " # Toplevel Blocks: " << NumTopBlocks << "\n";
535 // Emit per-block stats.
536 errs() << "Per-block Summary:\n";
537 for (std::map<unsigned, PerBlockIDStats>::iterator I = BlockIDStats.begin(),
538 E = BlockIDStats.end(); I != E; ++I) {
539 errs() << " Block ID #" << I->first;
540 if (const char *BlockName = GetBlockName(I->first, StreamFile))
541 errs() << " (" << BlockName << ")";
544 const PerBlockIDStats &Stats = I->second;
545 errs() << " Num Instances: " << Stats.NumInstances << "\n";
546 errs() << " Total Size: ";
547 PrintSize(Stats.NumBits);
549 errs() << " % of file: "
550 << Stats.NumBits/(double)BufferSizeBits*100 << "\n";
551 if (Stats.NumInstances > 1) {
552 errs() << " Average Size: ";
553 PrintSize(Stats.NumBits/(double)Stats.NumInstances);
555 errs() << " Tot/Avg SubBlocks: " << Stats.NumSubBlocks << "/"
556 << Stats.NumSubBlocks/(double)Stats.NumInstances << "\n";
557 errs() << " Tot/Avg Abbrevs: " << Stats.NumAbbrevs << "/"
558 << Stats.NumAbbrevs/(double)Stats.NumInstances << "\n";
559 errs() << " Tot/Avg Records: " << Stats.NumRecords << "/"
560 << Stats.NumRecords/(double)Stats.NumInstances << "\n";
562 errs() << " Num SubBlocks: " << Stats.NumSubBlocks << "\n";
563 errs() << " Num Abbrevs: " << Stats.NumAbbrevs << "\n";
564 errs() << " Num Records: " << Stats.NumRecords << "\n";
566 if (Stats.NumRecords)
567 errs() << " % Abbrev Recs: " << (Stats.NumAbbreviatedRecords/
568 (double)Stats.NumRecords)*100 << "\n";
571 // Print a histogram of the codes we see.
572 if (!NoHistogram && !Stats.CodeFreq.empty()) {
573 std::vector<std::pair<unsigned, unsigned> > FreqPairs; // <freq,code>
574 for (unsigned i = 0, e = Stats.CodeFreq.size(); i != e; ++i)
575 if (unsigned Freq = Stats.CodeFreq[i].NumInstances)
576 FreqPairs.push_back(std::make_pair(Freq, i));
577 std::stable_sort(FreqPairs.begin(), FreqPairs.end());
578 std::reverse(FreqPairs.begin(), FreqPairs.end());
580 errs() << "\tRecord Histogram:\n";
581 fprintf(stderr, "\t\t Count # Bits %% Abv Record Kind\n");
582 for (unsigned i = 0, e = FreqPairs.size(); i != e; ++i) {
583 const PerRecordStats &RecStats = Stats.CodeFreq[FreqPairs[i].second];
585 fprintf(stderr, "\t\t%7d %9llu ", RecStats.NumInstances,
586 (unsigned long long)RecStats.TotalBits);
588 if (RecStats.NumAbbrev)
589 fprintf(stderr, "%7.2f ",
590 (double)RecStats.NumAbbrev/RecStats.NumInstances*100);
592 fprintf(stderr, " ");
594 if (const char *CodeName =
595 GetCodeName(FreqPairs[i].second, I->first, StreamFile))
596 fprintf(stderr, "%s\n", CodeName);
598 fprintf(stderr, "UnknownCode%d\n", FreqPairs[i].second);
608 int main(int argc, char **argv) {
609 // Print a stack trace if we signal out.
610 sys::PrintStackTraceOnErrorSignal();
611 PrettyStackTraceProgram X(argc, argv);
612 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
613 cl::ParseCommandLineOptions(argc, argv, "llvm-bcanalyzer file analyzer\n");
615 return AnalyzeBitcode();