#include "llvm/Bitcode/LLVMBitCodes.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/IR/Verifier.h"
+#include "llvm/ADT/Optional.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
#include <algorithm>
#include <cctype>
#include <map>
+#include <system_error>
using namespace llvm;
static cl::opt<std::string>
cl::desc("Emit numeric info in dump even if"
" symbolic info is available"));
+static cl::opt<std::string>
+ BlockInfoFilename("block-info",
+ cl::desc("Use the BLOCK_INFO from the given file"));
+
namespace {
/// CurStreamTypeType - A type for CurStreamType
}
-/// 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) {
+ const BitstreamReader &StreamFile,
+ CurStreamTypeType CurStreamType) {
// Standard blocks for all bitcode files.
if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
if (BlockID == bitc::BLOCKINFO_BLOCK_ID)
return "BLOCKINFO_BLOCK";
- return 0;
+ return nullptr;
}
// Check to see if we have a blockinfo record for this block, with a name.
}
- if (CurStreamType != LLVMIRBitstream) return 0;
+ if (CurStreamType != LLVMIRBitstream) return nullptr;
switch (BlockID) {
- default: return 0;
+ default: return nullptr;
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";
/// GetCodeName - Return a symbolic code name if known, otherwise return
/// null.
static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
- const BitstreamReader &StreamFile) {
+ const BitstreamReader &StreamFile,
+ CurStreamTypeType CurStreamType) {
// Standard blocks for all bitcode files.
if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
switch (CodeID) {
- default: return 0;
+ default: return nullptr;
case bitc::BLOCKINFO_CODE_SETBID: return "SETBID";
case bitc::BLOCKINFO_CODE_BLOCKNAME: return "BLOCKNAME";
case bitc::BLOCKINFO_CODE_SETRECORDNAME: return "SETRECORDNAME";
}
}
- return 0;
+ return nullptr;
}
// Check to see if we have a blockinfo record for this record, with a name.
}
- if (CurStreamType != LLVMIRBitstream) return 0;
+ if (CurStreamType != LLVMIRBitstream) return nullptr;
switch (BlockID) {
- default: return 0;
+ default: return nullptr;
case bitc::MODULE_BLOCK_ID:
switch (CodeID) {
- default: return 0;
+ default: return nullptr;
case bitc::MODULE_CODE_VERSION: return "VERSION";
case bitc::MODULE_CODE_TRIPLE: return "TRIPLE";
case bitc::MODULE_CODE_DATALAYOUT: return "DATALAYOUT";
}
case bitc::PARAMATTR_BLOCK_ID:
switch (CodeID) {
- default: return 0;
+ default: return nullptr;
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;
+ default: return nullptr;
case bitc::TYPE_CODE_NUMENTRY: return "NUMENTRY";
case bitc::TYPE_CODE_VOID: return "VOID";
case bitc::TYPE_CODE_FLOAT: return "FLOAT";
case bitc::CONSTANTS_BLOCK_ID:
switch (CodeID) {
- default: return 0;
+ default: return nullptr;
case bitc::CST_CODE_SETTYPE: return "SETTYPE";
case bitc::CST_CODE_NULL: return "NULL";
case bitc::CST_CODE_UNDEF: return "UNDEF";
}
case bitc::FUNCTION_BLOCK_ID:
switch (CodeID) {
- default: return 0;
+ default: return nullptr;
case bitc::FUNC_CODE_DECLAREBLOCKS: return "DECLAREBLOCKS";
case bitc::FUNC_CODE_INST_BINOP: return "INST_BINOP";
}
case bitc::VALUE_SYMTAB_BLOCK_ID:
switch (CodeID) {
- default: return 0;
+ default: return nullptr;
case bitc::VST_CODE_ENTRY: return "ENTRY";
case bitc::VST_CODE_BBENTRY: return "BBENTRY";
}
case bitc::METADATA_ATTACHMENT_ID:
switch(CodeID) {
- default:return 0;
+ default:return nullptr;
case bitc::METADATA_ATTACHMENT: return "METADATA_ATTACHMENT";
}
case bitc::METADATA_BLOCK_ID:
switch(CodeID) {
- default:return 0;
+ default:return nullptr;
case bitc::METADATA_STRING: return "METADATA_STRING";
case bitc::METADATA_NAME: return "METADATA_NAME";
case bitc::METADATA_KIND: return "METADATA_KIND";
}
case bitc::USELIST_BLOCK_ID:
switch(CodeID) {
- default:return 0;
- case bitc::USELIST_CODE_ENTRY: return "USELIST_CODE_ENTRY";
+ default:return nullptr;
+ case bitc::USELIST_CODE_DEFAULT: return "USELIST_CODE_DEFAULT";
+ case bitc::USELIST_CODE_BB: return "USELIST_CODE_BB";
}
}
}
/// 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) {
+static bool Error(const Twine &Err) {
errs() << Err << "\n";
return true;
}
/// ParseBlock - Read a block, updating statistics, etc.
static bool ParseBlock(BitstreamCursor &Stream, unsigned BlockID,
- unsigned IndentLevel) {
+ unsigned IndentLevel, CurStreamTypeType CurStreamType) {
std::string Indent(IndentLevel*2, ' ');
uint64_t BlockBitStart = Stream.GetCurrentBitNo();
if (Stream.EnterSubBlock(BlockID, &NumWords))
return Error("Malformed block record");
- const char *BlockName = 0;
+ const char *BlockName = nullptr;
if (Dump) {
outs() << Indent << "<";
- if ((BlockName = GetBlockName(BlockID, *Stream.getBitStreamReader())))
+ if ((BlockName = GetBlockName(BlockID, *Stream.getBitStreamReader(),
+ CurStreamType)))
outs() << BlockName;
else
outs() << "UnknownBlock" << BlockID;
case BitstreamEntry::SubBlock: {
uint64_t SubBlockBitStart = Stream.GetCurrentBitNo();
- if (ParseBlock(Stream, Entry.ID, IndentLevel+1))
+ if (ParseBlock(Stream, Entry.ID, IndentLevel+1, CurStreamType))
return true;
++BlockStats.NumSubBlocks;
uint64_t SubBlockBitEnd = Stream.GetCurrentBitNo();
if (Dump) {
outs() << Indent << " <";
if (const char *CodeName =
- GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
+ GetCodeName(Code, BlockID, *Stream.getBitStreamReader(),
+ CurStreamType))
outs() << CodeName;
else
outs() << "UnknownCode" << Code;
if (NonSymbolic &&
- GetCodeName(Code, BlockID, *Stream.getBitStreamReader()))
+ GetCodeName(Code, BlockID, *Stream.getBitStreamReader(),
+ CurStreamType))
outs() << " codeid=" << Code;
if (Entry.ID != bitc::UNABBREV_RECORD)
outs() << " abbrevid=" << Entry.ID;
(double)Bits/8, (unsigned long)(Bits/32));
}
-
-/// AnalyzeBitcode - Analyze the bitcode file specified by InputFilename.
-static int AnalyzeBitcode() {
+static bool openBitcodeFile(StringRef Path,
+ std::unique_ptr<MemoryBuffer> &MemBuf,
+ BitstreamReader &StreamFile,
+ BitstreamCursor &Stream,
+ CurStreamTypeType &CurStreamType) {
// Read the input file.
- std::unique_ptr<MemoryBuffer> MemBuf;
-
- if (error_code ec =
- MemoryBuffer::getFileOrSTDIN(InputFilename, MemBuf))
- return Error("Error reading '" + InputFilename + "': " + ec.message());
+ ErrorOr<std::unique_ptr<MemoryBuffer>> MemBufOrErr =
+ MemoryBuffer::getFileOrSTDIN(Path);
+ if (std::error_code EC = MemBufOrErr.getError())
+ return Error(Twine("Error reading '") + Path + "': " + EC.message());
+ MemBuf = std::move(MemBufOrErr.get());
if (MemBuf->getBufferSize() & 3)
return Error("Bitcode stream should be a multiple of 4 bytes in length");
const unsigned char *BufPtr = (const unsigned char *)MemBuf->getBufferStart();
- const unsigned char *EndBufPtr = BufPtr+MemBuf->getBufferSize();
+ const 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 (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr, true))
return Error("Invalid bitcode wrapper header");
- BitstreamReader StreamFile(BufPtr, EndBufPtr);
- BitstreamCursor Stream(StreamFile);
+ StreamFile = BitstreamReader(BufPtr, EndBufPtr);
+ Stream = BitstreamCursor(StreamFile);
StreamFile.CollectBlockInfoNames();
// Read the stream signature.
Signature[4] == 0xE && Signature[5] == 0xD)
CurStreamType = LLVMIRBitstream;
+ return false;
+}
+
+/// AnalyzeBitcode - Analyze the bitcode file specified by InputFilename.
+static int AnalyzeBitcode() {
+ std::unique_ptr<MemoryBuffer> StreamBuffer;
+ BitstreamReader StreamFile;
+ BitstreamCursor Stream;
+ CurStreamTypeType CurStreamType;
+ if (openBitcodeFile(InputFilename, StreamBuffer, StreamFile, Stream,
+ CurStreamType))
+ return true;
+
+ // Read block info from BlockInfoFilename, if specified.
+ // The block info must be a top-level block.
+ if (!BlockInfoFilename.empty()) {
+ std::unique_ptr<MemoryBuffer> BlockInfoBuffer;
+ BitstreamReader BlockInfoFile;
+ BitstreamCursor BlockInfoCursor;
+ CurStreamTypeType BlockInfoStreamType;
+ if (openBitcodeFile(BlockInfoFilename, BlockInfoBuffer, BlockInfoFile,
+ BlockInfoCursor, BlockInfoStreamType))
+ return true;
+
+ while (!BlockInfoCursor.AtEndOfStream()) {
+ unsigned Code = BlockInfoCursor.ReadCode();
+ if (Code != bitc::ENTER_SUBBLOCK)
+ return Error("Invalid record at top-level in block info file");
+
+ unsigned BlockID = BlockInfoCursor.ReadSubBlockID();
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
+ if (BlockInfoCursor.ReadBlockInfoBlock())
+ return Error("Malformed BlockInfoBlock in block info file");
+ break;
+ }
+
+ BlockInfoCursor.SkipBlock();
+ }
+
+ StreamFile.takeBlockInfo(std::move(BlockInfoFile));
+ }
+
unsigned NumTopBlocks = 0;
// Parse the top-level structure. We only allow blocks at the top-level.
unsigned BlockID = Stream.ReadSubBlockID();
- if (ParseBlock(Stream, BlockID, 0))
+ if (ParseBlock(Stream, BlockID, 0, CurStreamType))
return true;
++NumTopBlocks;
}
if (Dump) outs() << "\n\n";
- uint64_t BufferSizeBits = (EndBufPtr-BufPtr)*CHAR_BIT;
+ uint64_t BufferSizeBits = StreamFile.getBitcodeBytes().getExtent() * CHAR_BIT;
// Print a summary of the read file.
outs() << "Summary of " << InputFilename << ":\n";
outs() << " Total size: ";
for (std::map<unsigned, PerBlockIDStats>::iterator I = BlockIDStats.begin(),
E = BlockIDStats.end(); I != E; ++I) {
outs() << " Block ID #" << I->first;
- if (const char *BlockName = GetBlockName(I->first, StreamFile))
+ if (const char *BlockName = GetBlockName(I->first, StreamFile,
+ CurStreamType))
outs() << " (" << BlockName << ")";
outs() << ":\n";
outs() << " ";
if (const char *CodeName =
- GetCodeName(FreqPairs[i].second, I->first, StreamFile))
+ GetCodeName(FreqPairs[i].second, I->first, StreamFile,
+ CurStreamType))
outs() << CodeName << "\n";
else
outs() << "UnknownCode" << FreqPairs[i].second << "\n";
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