[llvm] r365286 - [llvm-bcanalyzer] Refactor and move to libLLVMBitReader
Francis Visoiu Mistrih via llvm-commits
llvm-commits at lists.llvm.org
Sun Jul 7 19:06:35 PDT 2019
Author: thegameg
Date: Sun Jul 7 19:06:34 2019
New Revision: 365286
URL: http://llvm.org/viewvc/llvm-project?rev=365286&view=rev
Log:
[llvm-bcanalyzer] Refactor and move to libLLVMBitReader
This allows us to use the analyzer from unit tests.
* Refactor the interface to use proper error handling for most functions
after JF's work.
* Move everything into a BitstreamAnalyzer class.
* Move that to Bitcode/BitcodeAnalyzer.h.
Differential Revision: https://reviews.llvm.org/D64116
Added:
llvm/trunk/include/llvm/Bitcode/BitcodeAnalyzer.h
llvm/trunk/lib/Bitcode/Reader/BitcodeAnalyzer.cpp
Modified:
llvm/trunk/lib/Bitcode/Reader/CMakeLists.txt
llvm/trunk/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
Added: llvm/trunk/include/llvm/Bitcode/BitcodeAnalyzer.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Bitcode/BitcodeAnalyzer.h?rev=365286&view=auto
==============================================================================
--- llvm/trunk/include/llvm/Bitcode/BitcodeAnalyzer.h (added)
+++ llvm/trunk/include/llvm/Bitcode/BitcodeAnalyzer.h Sun Jul 7 19:06:34 2019
@@ -0,0 +1,103 @@
+//===- llvm/Bitcode/BitcodeAnalyzer.h - Bitcode analyzer --------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This header defines interfaces to analyze LLVM bitcode files/streams.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_BITCODE_BITCODE_ANALYZER_H
+#define LLVM_BITCODE_BITCODE_ANALYZER_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Bitstream/BitstreamReader.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/raw_ostream.h"
+#include <map>
+#include <vector>
+
+namespace llvm {
+
+/// CurStreamTypeType - A type for CurStreamType
+enum CurStreamTypeType {
+ UnknownBitstream,
+ LLVMIRBitstream,
+ ClangSerializedASTBitstream,
+ ClangSerializedDiagnosticsBitstream,
+};
+
+struct BCDumpOptions {
+ /// The stream.
+ raw_ostream &OS;
+ /// Print per-code histogram.
+ bool Histogram = false;
+ /// Don't emit numeric info in dump if symbolic info is available.
+ bool Symbolic = false;
+ /// Print binary blobs using hex escapes.
+ bool ShowBinaryBlobs = false;
+
+ BCDumpOptions(raw_ostream &OS) : OS(OS) {}
+};
+
+class BitcodeAnalyzer {
+ BitstreamCursor Stream;
+ BitstreamBlockInfo BlockInfo;
+ CurStreamTypeType CurStreamType;
+ Optional<BitstreamCursor> BlockInfoStream;
+ unsigned NumTopBlocks = 0;
+
+ 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) {}
+ };
+
+ std::map<unsigned, PerBlockIDStats> BlockIDStats;
+
+public:
+ BitcodeAnalyzer(StringRef Buffer, Optional<StringRef> BlockInfoBuffer = None);
+ /// Analyze the bitcode file.
+ Error analyze(Optional<BCDumpOptions> O = None,
+ Optional<StringRef> CheckHash = None);
+ /// Print stats about the bitcode file.
+ void printStats(BCDumpOptions O, Optional<StringRef> Filename = None);
+
+private:
+ /// Read a block, updating statistics, etc.
+ Error parseBlock(unsigned BlockID, unsigned IndentLevel,
+ Optional<BCDumpOptions> O = None,
+ Optional<StringRef> CheckHash = None);
+
+ Error decodeMetadataStringsBlob(StringRef Indent, ArrayRef<uint64_t> Record,
+ StringRef Blob, raw_ostream &OS);
+};
+
+} // end namespace llvm
+
+#endif // LLVM_BITCODE_BITCODE_ANALYZER_H
Added: llvm/trunk/lib/Bitcode/Reader/BitcodeAnalyzer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Bitcode/Reader/BitcodeAnalyzer.cpp?rev=365286&view=auto
==============================================================================
--- llvm/trunk/lib/Bitcode/Reader/BitcodeAnalyzer.cpp (added)
+++ llvm/trunk/lib/Bitcode/Reader/BitcodeAnalyzer.cpp Sun Jul 7 19:06:34 2019
@@ -0,0 +1,977 @@
+//===- BitcodeAnalyzer.cpp - Internal BitcodeAnalyzer implementation ------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Bitcode/BitcodeAnalyzer.h"
+#include "llvm/Bitcode/BitcodeReader.h"
+#include "llvm/Bitcode/LLVMBitCodes.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/SHA1.h"
+
+using namespace llvm;
+
+static Error reportError(StringRef Message) {
+ return createStringError(std::errc::illegal_byte_sequence, Message.data());
+}
+
+/// Return a symbolic block name if known, otherwise return null.
+static Optional<const char *> GetBlockName(unsigned BlockID,
+ const BitstreamBlockInfo &BlockInfo,
+ CurStreamTypeType CurStreamType) {
+ // Standard blocks for all bitcode files.
+ if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID)
+ return "BLOCKINFO_BLOCK";
+ return None;
+ }
+
+ // Check to see if we have a blockinfo record for this block, with a name.
+ if (const BitstreamBlockInfo::BlockInfo *Info =
+ BlockInfo.getBlockInfo(BlockID)) {
+ if (!Info->Name.empty())
+ return Info->Name.c_str();
+ }
+
+ if (CurStreamType != LLVMIRBitstream)
+ return None;
+
+ switch (BlockID) {
+ default:
+ return None;
+ case bitc::OPERAND_BUNDLE_TAGS_BLOCK_ID:
+ return "OPERAND_BUNDLE_TAGS_BLOCK";
+ 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::IDENTIFICATION_BLOCK_ID:
+ return "IDENTIFICATION_BLOCK_ID";
+ case bitc::VALUE_SYMTAB_BLOCK_ID:
+ return "VALUE_SYMTAB";
+ case bitc::METADATA_BLOCK_ID:
+ return "METADATA_BLOCK";
+ case bitc::METADATA_KIND_BLOCK_ID:
+ return "METADATA_KIND_BLOCK";
+ case bitc::METADATA_ATTACHMENT_ID:
+ return "METADATA_ATTACHMENT_BLOCK";
+ case bitc::USELIST_BLOCK_ID:
+ return "USELIST_BLOCK_ID";
+ case bitc::GLOBALVAL_SUMMARY_BLOCK_ID:
+ return "GLOBALVAL_SUMMARY_BLOCK";
+ case bitc::FULL_LTO_GLOBALVAL_SUMMARY_BLOCK_ID:
+ return "FULL_LTO_GLOBALVAL_SUMMARY_BLOCK";
+ case bitc::MODULE_STRTAB_BLOCK_ID:
+ return "MODULE_STRTAB_BLOCK";
+ case bitc::STRTAB_BLOCK_ID:
+ return "STRTAB_BLOCK";
+ case bitc::SYMTAB_BLOCK_ID:
+ return "SYMTAB_BLOCK";
+ }
+}
+
+/// Return a symbolic code name if known, otherwise return null.
+static Optional<const char *> GetCodeName(unsigned CodeID, unsigned BlockID,
+ const BitstreamBlockInfo &BlockInfo,
+ CurStreamTypeType CurStreamType) {
+ // Standard blocks for all bitcode files.
+ if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
+ switch (CodeID) {
+ default:
+ return None;
+ case bitc::BLOCKINFO_CODE_SETBID:
+ return "SETBID";
+ case bitc::BLOCKINFO_CODE_BLOCKNAME:
+ return "BLOCKNAME";
+ case bitc::BLOCKINFO_CODE_SETRECORDNAME:
+ return "SETRECORDNAME";
+ }
+ }
+ return None;
+ }
+
+ // Check to see if we have a blockinfo record for this record, with a name.
+ if (const BitstreamBlockInfo::BlockInfo *Info =
+ BlockInfo.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 None;
+
+#define STRINGIFY_CODE(PREFIX, CODE) \
+ case bitc::PREFIX##_##CODE: \
+ return #CODE;
+ switch (BlockID) {
+ default:
+ return None;
+ case bitc::MODULE_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(MODULE_CODE, VERSION)
+ STRINGIFY_CODE(MODULE_CODE, TRIPLE)
+ STRINGIFY_CODE(MODULE_CODE, DATALAYOUT)
+ STRINGIFY_CODE(MODULE_CODE, ASM)
+ STRINGIFY_CODE(MODULE_CODE, SECTIONNAME)
+ STRINGIFY_CODE(MODULE_CODE, DEPLIB) // FIXME: Remove in 4.0
+ STRINGIFY_CODE(MODULE_CODE, GLOBALVAR)
+ STRINGIFY_CODE(MODULE_CODE, FUNCTION)
+ STRINGIFY_CODE(MODULE_CODE, ALIAS)
+ STRINGIFY_CODE(MODULE_CODE, GCNAME)
+ STRINGIFY_CODE(MODULE_CODE, VSTOFFSET)
+ STRINGIFY_CODE(MODULE_CODE, METADATA_VALUES_UNUSED)
+ STRINGIFY_CODE(MODULE_CODE, SOURCE_FILENAME)
+ STRINGIFY_CODE(MODULE_CODE, HASH)
+ }
+ case bitc::IDENTIFICATION_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(IDENTIFICATION_CODE, STRING)
+ STRINGIFY_CODE(IDENTIFICATION_CODE, EPOCH)
+ }
+ case bitc::PARAMATTR_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ // FIXME: Should these be different?
+ case bitc::PARAMATTR_CODE_ENTRY_OLD:
+ return "ENTRY";
+ case bitc::PARAMATTR_CODE_ENTRY:
+ return "ENTRY";
+ }
+ case bitc::PARAMATTR_GROUP_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ case bitc::PARAMATTR_GRP_CODE_ENTRY:
+ return "ENTRY";
+ }
+ case bitc::TYPE_BLOCK_ID_NEW:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(TYPE_CODE, NUMENTRY)
+ STRINGIFY_CODE(TYPE_CODE, VOID)
+ STRINGIFY_CODE(TYPE_CODE, FLOAT)
+ STRINGIFY_CODE(TYPE_CODE, DOUBLE)
+ STRINGIFY_CODE(TYPE_CODE, LABEL)
+ STRINGIFY_CODE(TYPE_CODE, OPAQUE)
+ STRINGIFY_CODE(TYPE_CODE, INTEGER)
+ STRINGIFY_CODE(TYPE_CODE, POINTER)
+ STRINGIFY_CODE(TYPE_CODE, ARRAY)
+ STRINGIFY_CODE(TYPE_CODE, VECTOR)
+ STRINGIFY_CODE(TYPE_CODE, X86_FP80)
+ STRINGIFY_CODE(TYPE_CODE, FP128)
+ STRINGIFY_CODE(TYPE_CODE, PPC_FP128)
+ STRINGIFY_CODE(TYPE_CODE, METADATA)
+ STRINGIFY_CODE(TYPE_CODE, STRUCT_ANON)
+ STRINGIFY_CODE(TYPE_CODE, STRUCT_NAME)
+ STRINGIFY_CODE(TYPE_CODE, STRUCT_NAMED)
+ STRINGIFY_CODE(TYPE_CODE, FUNCTION)
+ }
+
+ case bitc::CONSTANTS_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(CST_CODE, SETTYPE)
+ STRINGIFY_CODE(CST_CODE, NULL)
+ STRINGIFY_CODE(CST_CODE, UNDEF)
+ STRINGIFY_CODE(CST_CODE, INTEGER)
+ STRINGIFY_CODE(CST_CODE, WIDE_INTEGER)
+ STRINGIFY_CODE(CST_CODE, FLOAT)
+ STRINGIFY_CODE(CST_CODE, AGGREGATE)
+ STRINGIFY_CODE(CST_CODE, STRING)
+ STRINGIFY_CODE(CST_CODE, CSTRING)
+ STRINGIFY_CODE(CST_CODE, CE_BINOP)
+ STRINGIFY_CODE(CST_CODE, CE_CAST)
+ STRINGIFY_CODE(CST_CODE, CE_GEP)
+ STRINGIFY_CODE(CST_CODE, CE_INBOUNDS_GEP)
+ STRINGIFY_CODE(CST_CODE, CE_SELECT)
+ STRINGIFY_CODE(CST_CODE, CE_EXTRACTELT)
+ STRINGIFY_CODE(CST_CODE, CE_INSERTELT)
+ STRINGIFY_CODE(CST_CODE, CE_SHUFFLEVEC)
+ STRINGIFY_CODE(CST_CODE, CE_CMP)
+ STRINGIFY_CODE(CST_CODE, INLINEASM)
+ STRINGIFY_CODE(CST_CODE, CE_SHUFVEC_EX)
+ STRINGIFY_CODE(CST_CODE, CE_UNOP)
+ case bitc::CST_CODE_BLOCKADDRESS:
+ return "CST_CODE_BLOCKADDRESS";
+ STRINGIFY_CODE(CST_CODE, DATA)
+ }
+ case bitc::FUNCTION_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(FUNC_CODE, DECLAREBLOCKS)
+ STRINGIFY_CODE(FUNC_CODE, INST_BINOP)
+ STRINGIFY_CODE(FUNC_CODE, INST_CAST)
+ STRINGIFY_CODE(FUNC_CODE, INST_GEP_OLD)
+ STRINGIFY_CODE(FUNC_CODE, INST_INBOUNDS_GEP_OLD)
+ STRINGIFY_CODE(FUNC_CODE, INST_SELECT)
+ STRINGIFY_CODE(FUNC_CODE, INST_EXTRACTELT)
+ STRINGIFY_CODE(FUNC_CODE, INST_INSERTELT)
+ STRINGIFY_CODE(FUNC_CODE, INST_SHUFFLEVEC)
+ STRINGIFY_CODE(FUNC_CODE, INST_CMP)
+ STRINGIFY_CODE(FUNC_CODE, INST_RET)
+ STRINGIFY_CODE(FUNC_CODE, INST_BR)
+ STRINGIFY_CODE(FUNC_CODE, INST_SWITCH)
+ STRINGIFY_CODE(FUNC_CODE, INST_INVOKE)
+ STRINGIFY_CODE(FUNC_CODE, INST_UNOP)
+ STRINGIFY_CODE(FUNC_CODE, INST_UNREACHABLE)
+ STRINGIFY_CODE(FUNC_CODE, INST_CLEANUPRET)
+ STRINGIFY_CODE(FUNC_CODE, INST_CATCHRET)
+ STRINGIFY_CODE(FUNC_CODE, INST_CATCHPAD)
+ STRINGIFY_CODE(FUNC_CODE, INST_PHI)
+ STRINGIFY_CODE(FUNC_CODE, INST_ALLOCA)
+ STRINGIFY_CODE(FUNC_CODE, INST_LOAD)
+ STRINGIFY_CODE(FUNC_CODE, INST_VAARG)
+ STRINGIFY_CODE(FUNC_CODE, INST_STORE)
+ STRINGIFY_CODE(FUNC_CODE, INST_EXTRACTVAL)
+ STRINGIFY_CODE(FUNC_CODE, INST_INSERTVAL)
+ STRINGIFY_CODE(FUNC_CODE, INST_CMP2)
+ STRINGIFY_CODE(FUNC_CODE, INST_VSELECT)
+ STRINGIFY_CODE(FUNC_CODE, DEBUG_LOC_AGAIN)
+ STRINGIFY_CODE(FUNC_CODE, INST_CALL)
+ STRINGIFY_CODE(FUNC_CODE, DEBUG_LOC)
+ STRINGIFY_CODE(FUNC_CODE, INST_GEP)
+ STRINGIFY_CODE(FUNC_CODE, OPERAND_BUNDLE)
+ STRINGIFY_CODE(FUNC_CODE, INST_FENCE)
+ STRINGIFY_CODE(FUNC_CODE, INST_ATOMICRMW)
+ STRINGIFY_CODE(FUNC_CODE, INST_LOADATOMIC)
+ STRINGIFY_CODE(FUNC_CODE, INST_STOREATOMIC)
+ STRINGIFY_CODE(FUNC_CODE, INST_CMPXCHG)
+ STRINGIFY_CODE(FUNC_CODE, INST_CALLBR)
+ }
+ case bitc::VALUE_SYMTAB_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(VST_CODE, ENTRY)
+ STRINGIFY_CODE(VST_CODE, BBENTRY)
+ STRINGIFY_CODE(VST_CODE, FNENTRY)
+ STRINGIFY_CODE(VST_CODE, COMBINED_ENTRY)
+ }
+ case bitc::MODULE_STRTAB_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(MST_CODE, ENTRY)
+ STRINGIFY_CODE(MST_CODE, HASH)
+ }
+ case bitc::GLOBALVAL_SUMMARY_BLOCK_ID:
+ case bitc::FULL_LTO_GLOBALVAL_SUMMARY_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(FS, PERMODULE)
+ STRINGIFY_CODE(FS, PERMODULE_PROFILE)
+ STRINGIFY_CODE(FS, PERMODULE_RELBF)
+ STRINGIFY_CODE(FS, PERMODULE_GLOBALVAR_INIT_REFS)
+ STRINGIFY_CODE(FS, PERMODULE_VTABLE_GLOBALVAR_INIT_REFS)
+ STRINGIFY_CODE(FS, COMBINED)
+ STRINGIFY_CODE(FS, COMBINED_PROFILE)
+ STRINGIFY_CODE(FS, COMBINED_GLOBALVAR_INIT_REFS)
+ STRINGIFY_CODE(FS, ALIAS)
+ STRINGIFY_CODE(FS, COMBINED_ALIAS)
+ STRINGIFY_CODE(FS, COMBINED_ORIGINAL_NAME)
+ STRINGIFY_CODE(FS, VERSION)
+ STRINGIFY_CODE(FS, FLAGS)
+ STRINGIFY_CODE(FS, TYPE_TESTS)
+ STRINGIFY_CODE(FS, TYPE_TEST_ASSUME_VCALLS)
+ STRINGIFY_CODE(FS, TYPE_CHECKED_LOAD_VCALLS)
+ STRINGIFY_CODE(FS, TYPE_TEST_ASSUME_CONST_VCALL)
+ STRINGIFY_CODE(FS, TYPE_CHECKED_LOAD_CONST_VCALL)
+ STRINGIFY_CODE(FS, VALUE_GUID)
+ STRINGIFY_CODE(FS, CFI_FUNCTION_DEFS)
+ STRINGIFY_CODE(FS, CFI_FUNCTION_DECLS)
+ STRINGIFY_CODE(FS, TYPE_ID)
+ STRINGIFY_CODE(FS, TYPE_ID_METADATA)
+ }
+ case bitc::METADATA_ATTACHMENT_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(METADATA, ATTACHMENT)
+ }
+ case bitc::METADATA_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(METADATA, STRING_OLD)
+ STRINGIFY_CODE(METADATA, VALUE)
+ STRINGIFY_CODE(METADATA, NODE)
+ STRINGIFY_CODE(METADATA, NAME)
+ STRINGIFY_CODE(METADATA, DISTINCT_NODE)
+ STRINGIFY_CODE(METADATA, KIND) // Older bitcode has it in a MODULE_BLOCK
+ STRINGIFY_CODE(METADATA, LOCATION)
+ STRINGIFY_CODE(METADATA, OLD_NODE)
+ STRINGIFY_CODE(METADATA, OLD_FN_NODE)
+ STRINGIFY_CODE(METADATA, NAMED_NODE)
+ STRINGIFY_CODE(METADATA, GENERIC_DEBUG)
+ STRINGIFY_CODE(METADATA, SUBRANGE)
+ STRINGIFY_CODE(METADATA, ENUMERATOR)
+ STRINGIFY_CODE(METADATA, BASIC_TYPE)
+ STRINGIFY_CODE(METADATA, FILE)
+ STRINGIFY_CODE(METADATA, DERIVED_TYPE)
+ STRINGIFY_CODE(METADATA, COMPOSITE_TYPE)
+ STRINGIFY_CODE(METADATA, SUBROUTINE_TYPE)
+ STRINGIFY_CODE(METADATA, COMPILE_UNIT)
+ STRINGIFY_CODE(METADATA, SUBPROGRAM)
+ STRINGIFY_CODE(METADATA, LEXICAL_BLOCK)
+ STRINGIFY_CODE(METADATA, LEXICAL_BLOCK_FILE)
+ STRINGIFY_CODE(METADATA, NAMESPACE)
+ STRINGIFY_CODE(METADATA, TEMPLATE_TYPE)
+ STRINGIFY_CODE(METADATA, TEMPLATE_VALUE)
+ STRINGIFY_CODE(METADATA, GLOBAL_VAR)
+ STRINGIFY_CODE(METADATA, LOCAL_VAR)
+ STRINGIFY_CODE(METADATA, EXPRESSION)
+ STRINGIFY_CODE(METADATA, OBJC_PROPERTY)
+ STRINGIFY_CODE(METADATA, IMPORTED_ENTITY)
+ STRINGIFY_CODE(METADATA, MODULE)
+ STRINGIFY_CODE(METADATA, MACRO)
+ STRINGIFY_CODE(METADATA, MACRO_FILE)
+ STRINGIFY_CODE(METADATA, STRINGS)
+ STRINGIFY_CODE(METADATA, GLOBAL_DECL_ATTACHMENT)
+ STRINGIFY_CODE(METADATA, GLOBAL_VAR_EXPR)
+ STRINGIFY_CODE(METADATA, INDEX_OFFSET)
+ STRINGIFY_CODE(METADATA, INDEX)
+ }
+ case bitc::METADATA_KIND_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ STRINGIFY_CODE(METADATA, KIND)
+ }
+ case bitc::USELIST_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ case bitc::USELIST_CODE_DEFAULT:
+ return "USELIST_CODE_DEFAULT";
+ case bitc::USELIST_CODE_BB:
+ return "USELIST_CODE_BB";
+ }
+
+ case bitc::OPERAND_BUNDLE_TAGS_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ case bitc::OPERAND_BUNDLE_TAG:
+ return "OPERAND_BUNDLE_TAG";
+ }
+ case bitc::STRTAB_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ case bitc::STRTAB_BLOB:
+ return "BLOB";
+ }
+ case bitc::SYMTAB_BLOCK_ID:
+ switch (CodeID) {
+ default:
+ return None;
+ case bitc::SYMTAB_BLOB:
+ return "BLOB";
+ }
+ }
+#undef STRINGIFY_CODE
+}
+
+static void printSize(raw_ostream &OS, double Bits) {
+ OS << format("%.2f/%.2fB/%luW", Bits, Bits / 8, (unsigned long)(Bits / 32));
+}
+static void printSize(raw_ostream &OS, uint64_t Bits) {
+ OS << format("%lub/%.2fB/%luW", (unsigned long)Bits, (double)Bits / 8,
+ (unsigned long)(Bits / 32));
+}
+
+static Expected<CurStreamTypeType> ReadSignature(BitstreamCursor &Stream) {
+ auto tryRead = [&Stream](char &Dest, size_t size) -> Error {
+ if (Expected<SimpleBitstreamCursor::word_t> MaybeWord = Stream.Read(size))
+ Dest = MaybeWord.get();
+ else
+ return MaybeWord.takeError();
+ return Error::success();
+ };
+
+ char Signature[6];
+ if (Error Err = tryRead(Signature[0], 8))
+ return std::move(Err);
+ if (Error Err = tryRead(Signature[1], 8))
+ return std::move(Err);
+
+ // Autodetect the file contents, if it is one we know.
+ if (Signature[0] == 'C' && Signature[1] == 'P') {
+ if (Error Err = tryRead(Signature[2], 8))
+ return std::move(Err);
+ if (Error Err = tryRead(Signature[3], 8))
+ return std::move(Err);
+ if (Signature[2] == 'C' && Signature[3] == 'H')
+ return ClangSerializedASTBitstream;
+ } else if (Signature[0] == 'D' && Signature[1] == 'I') {
+ if (Error Err = tryRead(Signature[2], 8))
+ return std::move(Err);
+ if (Error Err = tryRead(Signature[3], 8))
+ return std::move(Err);
+ if (Signature[2] == 'A' && Signature[3] == 'G')
+ return ClangSerializedDiagnosticsBitstream;
+ } else {
+ if (Error Err = tryRead(Signature[2], 4))
+ return std::move(Err);
+ if (Error Err = tryRead(Signature[3], 4))
+ return std::move(Err);
+ if (Error Err = tryRead(Signature[4], 4))
+ return std::move(Err);
+ if (Error Err = tryRead(Signature[5], 4))
+ return std::move(Err);
+ if (Signature[0] == 'B' && Signature[1] == 'C' && Signature[2] == 0x0 &&
+ Signature[3] == 0xC && Signature[4] == 0xE && Signature[5] == 0xD)
+ return LLVMIRBitstream;
+ }
+ return UnknownBitstream;
+}
+
+static Expected<CurStreamTypeType> analyzeHeader(Optional<BCDumpOptions> O,
+ BitstreamCursor &Stream) {
+ ArrayRef<uint8_t> Bytes = Stream.getBitcodeBytes();
+ const unsigned char *BufPtr = (const unsigned char *)Bytes.data();
+ const unsigned char *EndBufPtr = BufPtr + Bytes.size();
+
+ // 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 (Bytes.size() < BWH_HeaderSize)
+ return reportError("Invalid bitcode wrapper header");
+
+ if (O) {
+ unsigned Magic = support::endian::read32le(&BufPtr[BWH_MagicField]);
+ unsigned Version = support::endian::read32le(&BufPtr[BWH_VersionField]);
+ unsigned Offset = support::endian::read32le(&BufPtr[BWH_OffsetField]);
+ unsigned Size = support::endian::read32le(&BufPtr[BWH_SizeField]);
+ unsigned CPUType = support::endian::read32le(&BufPtr[BWH_CPUTypeField]);
+
+ O->OS << "<BITCODE_WRAPPER_HEADER"
+ << " Magic=" << format_hex(Magic, 10)
+ << " Version=" << format_hex(Version, 10)
+ << " Offset=" << format_hex(Offset, 10)
+ << " Size=" << format_hex(Size, 10)
+ << " CPUType=" << format_hex(CPUType, 10) << "/>\n";
+ }
+
+ if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr, true))
+ return reportError("Invalid bitcode wrapper header");
+ }
+
+ // Use the cursor modified by skipping the wrapper header.
+ Stream = BitstreamCursor(ArrayRef<uint8_t>(BufPtr, EndBufPtr));
+
+ return ReadSignature(Stream);
+}
+
+static bool canDecodeBlob(unsigned Code, unsigned BlockID) {
+ return BlockID == bitc::METADATA_BLOCK_ID && Code == bitc::METADATA_STRINGS;
+}
+
+Error BitcodeAnalyzer::decodeMetadataStringsBlob(StringRef Indent,
+ ArrayRef<uint64_t> Record,
+ StringRef Blob,
+ raw_ostream &OS) {
+ if (Blob.empty())
+ return reportError("Cannot decode empty blob.");
+
+ if (Record.size() != 2)
+ return reportError(
+ "Decoding metadata strings blob needs two record entries.");
+
+ unsigned NumStrings = Record[0];
+ unsigned StringsOffset = Record[1];
+ OS << " num-strings = " << NumStrings << " {\n";
+
+ StringRef Lengths = Blob.slice(0, StringsOffset);
+ SimpleBitstreamCursor R(Lengths);
+ StringRef Strings = Blob.drop_front(StringsOffset);
+ do {
+ if (R.AtEndOfStream())
+ return reportError("bad length");
+
+ Expected<uint32_t> MaybeSize = R.ReadVBR(6);
+ if (!MaybeSize)
+ return MaybeSize.takeError();
+ uint32_t Size = MaybeSize.get();
+ if (Strings.size() < Size)
+ return reportError("truncated chars");
+
+ OS << Indent << " '";
+ OS.write_escaped(Strings.slice(0, Size), /*hex=*/true);
+ OS << "'\n";
+ Strings = Strings.drop_front(Size);
+ } while (--NumStrings);
+
+ OS << Indent << " }";
+ return Error::success();
+}
+
+BitcodeAnalyzer::BitcodeAnalyzer(StringRef Buffer,
+ Optional<StringRef> BlockInfoBuffer)
+ : Stream(Buffer) {
+ if (BlockInfoBuffer)
+ BlockInfoStream.emplace(*BlockInfoBuffer);
+}
+
+Error BitcodeAnalyzer::analyze(Optional<BCDumpOptions> O,
+ Optional<StringRef> CheckHash) {
+ if (Expected<CurStreamTypeType> H = analyzeHeader(O, Stream))
+ CurStreamType = *H;
+
+ Stream.setBlockInfo(&BlockInfo);
+
+ // Read block info from BlockInfoStream, if specified.
+ // The block info must be a top-level block.
+ if (BlockInfoStream) {
+ BitstreamCursor BlockInfoCursor(*BlockInfoStream);
+ CurStreamTypeType BlockInfoStreamType;
+ Expected<CurStreamTypeType> H = analyzeHeader(O, BlockInfoCursor);
+ if (!H)
+ return H.takeError();
+ BlockInfoStreamType = *H;
+
+ while (!BlockInfoCursor.AtEndOfStream()) {
+ Expected<unsigned> MaybeCode = BlockInfoCursor.ReadCode();
+ if (!MaybeCode)
+ return MaybeCode.takeError();
+ if (MaybeCode.get() != bitc::ENTER_SUBBLOCK)
+ return reportError("Invalid record at top-level in block info file");
+
+ Expected<unsigned> MaybeBlockID = BlockInfoCursor.ReadSubBlockID();
+ if (!MaybeBlockID)
+ return MaybeBlockID.takeError();
+ if (MaybeBlockID.get() == bitc::BLOCKINFO_BLOCK_ID) {
+ Expected<Optional<BitstreamBlockInfo>> MaybeNewBlockInfo =
+ BlockInfoCursor.ReadBlockInfoBlock(/*ReadBlockInfoNames=*/true);
+ if (!MaybeNewBlockInfo)
+ return MaybeNewBlockInfo.takeError();
+ Optional<BitstreamBlockInfo> NewBlockInfo =
+ std::move(MaybeNewBlockInfo.get());
+ if (!NewBlockInfo)
+ return reportError("Malformed BlockInfoBlock in block info file");
+ BlockInfo = std::move(*NewBlockInfo);
+ break;
+ }
+
+ if (Error Err = BlockInfoCursor.SkipBlock())
+ return Err;
+ }
+ }
+
+ // Parse the top-level structure. We only allow blocks at the top-level.
+ while (!Stream.AtEndOfStream()) {
+ Expected<unsigned> MaybeCode = Stream.ReadCode();
+ if (!MaybeCode)
+ return MaybeCode.takeError();
+ if (MaybeCode.get() != bitc::ENTER_SUBBLOCK)
+ return reportError("Invalid record at top-level");
+
+ Expected<unsigned> MaybeBlockID = Stream.ReadSubBlockID();
+ if (!MaybeBlockID)
+ return MaybeBlockID.takeError();
+
+ if (Error E = parseBlock(MaybeBlockID.get(), 0, O, CheckHash))
+ return E;
+ ++NumTopBlocks;
+ }
+
+ return Error::success();
+}
+
+void BitcodeAnalyzer::printStats(BCDumpOptions O,
+ Optional<StringRef> Filename) {
+ uint64_t BufferSizeBits = Stream.getBitcodeBytes().size() * CHAR_BIT;
+ // Print a summary of the read file.
+ O.OS << "Summary ";
+ if (Filename)
+ O.OS << "of " << Filename->data() << ":\n";
+ O.OS << " Total size: ";
+ printSize(O.OS, BufferSizeBits);
+ O.OS << "\n";
+ O.OS << " Stream type: ";
+ switch (CurStreamType) {
+ case UnknownBitstream:
+ O.OS << "unknown\n";
+ break;
+ case LLVMIRBitstream:
+ O.OS << "LLVM IR\n";
+ break;
+ case ClangSerializedASTBitstream:
+ O.OS << "Clang Serialized AST\n";
+ break;
+ case ClangSerializedDiagnosticsBitstream:
+ O.OS << "Clang Serialized Diagnostics\n";
+ break;
+ }
+ O.OS << " # Toplevel Blocks: " << NumTopBlocks << "\n";
+ O.OS << "\n";
+
+ // Emit per-block stats.
+ O.OS << "Per-block Summary:\n";
+ for (std::map<unsigned, PerBlockIDStats>::iterator I = BlockIDStats.begin(),
+ E = BlockIDStats.end();
+ I != E; ++I) {
+ O.OS << " Block ID #" << I->first;
+ if (Optional<const char *> BlockName =
+ GetBlockName(I->first, BlockInfo, CurStreamType))
+ O.OS << " (" << *BlockName << ")";
+ O.OS << ":\n";
+
+ const PerBlockIDStats &Stats = I->second;
+ O.OS << " Num Instances: " << Stats.NumInstances << "\n";
+ O.OS << " Total Size: ";
+ printSize(O.OS, Stats.NumBits);
+ O.OS << "\n";
+ double pct = (Stats.NumBits * 100.0) / BufferSizeBits;
+ O.OS << " Percent of file: " << format("%2.4f%%", pct) << "\n";
+ if (Stats.NumInstances > 1) {
+ O.OS << " Average Size: ";
+ printSize(O.OS, Stats.NumBits / (double)Stats.NumInstances);
+ O.OS << "\n";
+ O.OS << " Tot/Avg SubBlocks: " << Stats.NumSubBlocks << "/"
+ << Stats.NumSubBlocks / (double)Stats.NumInstances << "\n";
+ O.OS << " Tot/Avg Abbrevs: " << Stats.NumAbbrevs << "/"
+ << Stats.NumAbbrevs / (double)Stats.NumInstances << "\n";
+ O.OS << " Tot/Avg Records: " << Stats.NumRecords << "/"
+ << Stats.NumRecords / (double)Stats.NumInstances << "\n";
+ } else {
+ O.OS << " Num SubBlocks: " << Stats.NumSubBlocks << "\n";
+ O.OS << " Num Abbrevs: " << Stats.NumAbbrevs << "\n";
+ O.OS << " Num Records: " << Stats.NumRecords << "\n";
+ }
+ if (Stats.NumRecords) {
+ double pct = (Stats.NumAbbreviatedRecords * 100.0) / Stats.NumRecords;
+ O.OS << " Percent Abbrevs: " << format("%2.4f%%", pct) << "\n";
+ }
+ O.OS << "\n";
+
+ // Print a histogram of the codes we see.
+ if (O.Histogram && !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));
+ llvm::stable_sort(FreqPairs);
+ std::reverse(FreqPairs.begin(), FreqPairs.end());
+
+ O.OS << "\tRecord Histogram:\n";
+ O.OS << "\t\t Count # Bits b/Rec % Abv Record Kind\n";
+ for (unsigned i = 0, e = FreqPairs.size(); i != e; ++i) {
+ const PerRecordStats &RecStats = Stats.CodeFreq[FreqPairs[i].second];
+
+ O.OS << format("\t\t%7d %9lu", RecStats.NumInstances,
+ (unsigned long)RecStats.TotalBits);
+
+ if (RecStats.NumInstances > 1)
+ O.OS << format(" %9.1f",
+ (double)RecStats.TotalBits / RecStats.NumInstances);
+ else
+ O.OS << " ";
+
+ if (RecStats.NumAbbrev)
+ O.OS << format(" %7.2f", (double)RecStats.NumAbbrev /
+ RecStats.NumInstances * 100);
+ else
+ O.OS << " ";
+
+ O.OS << " ";
+ if (Optional<const char *> CodeName = GetCodeName(
+ FreqPairs[i].second, I->first, BlockInfo, CurStreamType))
+ O.OS << *CodeName << "\n";
+ else
+ O.OS << "UnknownCode" << FreqPairs[i].second << "\n";
+ }
+ O.OS << "\n";
+ }
+ }
+}
+
+Error BitcodeAnalyzer::parseBlock(unsigned BlockID, unsigned IndentLevel,
+ Optional<BCDumpOptions> O,
+ Optional<StringRef> CheckHash) {
+ 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.
+ bool DumpRecords = O.hasValue();
+ if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
+ if (O)
+ O->OS << Indent << "<BLOCKINFO_BLOCK/>\n";
+ Expected<Optional<BitstreamBlockInfo>> MaybeNewBlockInfo =
+ Stream.ReadBlockInfoBlock(/*ReadBlockInfoNames=*/true);
+ if (!MaybeNewBlockInfo)
+ return MaybeNewBlockInfo.takeError();
+ Optional<BitstreamBlockInfo> NewBlockInfo =
+ std::move(MaybeNewBlockInfo.get());
+ if (!NewBlockInfo)
+ return reportError("Malformed BlockInfoBlock");
+ BlockInfo = std::move(*NewBlockInfo);
+ if (Error Err = Stream.JumpToBit(BlockBitStart))
+ return Err;
+ // It's not really interesting to dump the contents of the blockinfo
+ // block.
+ DumpRecords = false;
+ }
+
+ unsigned NumWords = 0;
+ if (Error Err = Stream.EnterSubBlock(BlockID, &NumWords))
+ return Err;
+
+ // Keep it for later, when we see a MODULE_HASH record
+ uint64_t BlockEntryPos = Stream.getCurrentByteNo();
+
+ Optional<const char *> BlockName = None;
+ if (DumpRecords) {
+ O->OS << Indent << "<";
+ if ((BlockName = GetBlockName(BlockID, BlockInfo, CurStreamType)))
+ O->OS << *BlockName;
+ else
+ O->OS << "UnknownBlock" << BlockID;
+
+ if (!O->Symbolic && BlockName)
+ O->OS << " BlockID=" << BlockID;
+
+ O->OS << " NumWords=" << NumWords
+ << " BlockCodeSize=" << Stream.getAbbrevIDWidth() << ">\n";
+ }
+
+ SmallVector<uint64_t, 64> Record;
+
+ // Keep the offset to the metadata index if seen.
+ uint64_t MetadataIndexOffset = 0;
+
+ // Read all the records for this block.
+ while (1) {
+ if (Stream.AtEndOfStream())
+ return reportError("Premature end of bitstream");
+
+ uint64_t RecordStartBit = Stream.GetCurrentBitNo();
+
+ Expected<BitstreamEntry> MaybeEntry =
+ Stream.advance(BitstreamCursor::AF_DontAutoprocessAbbrevs);
+ if (!MaybeEntry)
+ return MaybeEntry.takeError();
+ BitstreamEntry Entry = MaybeEntry.get();
+
+ switch (Entry.Kind) {
+ case BitstreamEntry::Error:
+ return reportError("malformed bitcode file");
+ case BitstreamEntry::EndBlock: {
+ uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
+ BlockStats.NumBits += BlockBitEnd - BlockBitStart;
+ if (DumpRecords) {
+ O->OS << Indent << "</";
+ if (BlockName)
+ O->OS << *BlockName << ">\n";
+ else
+ O->OS << "UnknownBlock" << BlockID << ">\n";
+ }
+ return Error::success();
+ }
+
+ case BitstreamEntry::SubBlock: {
+ uint64_t SubBlockBitStart = Stream.GetCurrentBitNo();
+ if (Error E = parseBlock(Entry.ID, IndentLevel + 1, O, CheckHash))
+ return E;
+ ++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) {
+ if (Error Err = Stream.ReadAbbrevRecord())
+ return Err;
+ ++BlockStats.NumAbbrevs;
+ continue;
+ }
+
+ Record.clear();
+
+ ++BlockStats.NumRecords;
+
+ StringRef Blob;
+ uint64_t CurrentRecordPos = Stream.GetCurrentBitNo();
+ Expected<unsigned> MaybeCode = Stream.readRecord(Entry.ID, Record, &Blob);
+ if (!MaybeCode)
+ return MaybeCode.takeError();
+ unsigned Code = MaybeCode.get();
+
+ // 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 (DumpRecords) {
+ O->OS << Indent << " <";
+ Optional<const char *> CodeName =
+ GetCodeName(Code, BlockID, BlockInfo, CurStreamType);
+ if (CodeName)
+ O->OS << *CodeName;
+ else
+ O->OS << "UnknownCode" << Code;
+ if (!O->Symbolic && CodeName)
+ O->OS << " codeid=" << Code;
+ const BitCodeAbbrev *Abbv = nullptr;
+ if (Entry.ID != bitc::UNABBREV_RECORD) {
+ Abbv = Stream.getAbbrev(Entry.ID);
+ O->OS << " abbrevid=" << Entry.ID;
+ }
+
+ for (unsigned i = 0, e = Record.size(); i != e; ++i)
+ O->OS << " op" << i << "=" << (int64_t)Record[i];
+
+ // If we found a metadata index, let's verify that we had an offset
+ // before and validate its forward reference offset was correct!
+ if (BlockID == bitc::METADATA_BLOCK_ID) {
+ if (Code == bitc::METADATA_INDEX_OFFSET) {
+ if (Record.size() != 2)
+ O->OS << "(Invalid record)";
+ else {
+ auto Offset = Record[0] + (Record[1] << 32);
+ MetadataIndexOffset = Stream.GetCurrentBitNo() + Offset;
+ }
+ }
+ if (Code == bitc::METADATA_INDEX) {
+ O->OS << " (offset ";
+ if (MetadataIndexOffset == RecordStartBit)
+ O->OS << "match)";
+ else
+ O->OS << "mismatch: " << MetadataIndexOffset << " vs "
+ << RecordStartBit << ")";
+ }
+ }
+
+ // If we found a module hash, let's verify that it matches!
+ if (BlockID == bitc::MODULE_BLOCK_ID && Code == bitc::MODULE_CODE_HASH &&
+ CheckHash.hasValue()) {
+ if (Record.size() != 5)
+ O->OS << " (invalid)";
+ else {
+ // Recompute the hash and compare it to the one in the bitcode
+ SHA1 Hasher;
+ StringRef Hash;
+ Hasher.update(*CheckHash);
+ {
+ int BlockSize = (CurrentRecordPos / 8) - BlockEntryPos;
+ auto Ptr = Stream.getPointerToByte(BlockEntryPos, BlockSize);
+ Hasher.update(ArrayRef<uint8_t>(Ptr, BlockSize));
+ Hash = Hasher.result();
+ }
+ SmallString<20> RecordedHash;
+ RecordedHash.resize(20);
+ int Pos = 0;
+ for (auto &Val : Record) {
+ assert(!(Val >> 32) && "Unexpected high bits set");
+ RecordedHash[Pos++] = (Val >> 24) & 0xFF;
+ RecordedHash[Pos++] = (Val >> 16) & 0xFF;
+ RecordedHash[Pos++] = (Val >> 8) & 0xFF;
+ RecordedHash[Pos++] = (Val >> 0) & 0xFF;
+ }
+ if (Hash == RecordedHash)
+ O->OS << " (match)";
+ else
+ O->OS << " (!mismatch!)";
+ }
+ }
+
+ O->OS << "/>";
+
+ if (Abbv) {
+ for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i != e; ++i) {
+ const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i);
+ if (!Op.isEncoding() || Op.getEncoding() != BitCodeAbbrevOp::Array)
+ continue;
+ assert(i + 2 == e && "Array op not second to last");
+ std::string Str;
+ bool ArrayIsPrintable = true;
+ for (unsigned j = i - 1, je = Record.size(); j != je; ++j) {
+ if (!isPrint(static_cast<unsigned char>(Record[j]))) {
+ ArrayIsPrintable = false;
+ break;
+ }
+ Str += (char)Record[j];
+ }
+ if (ArrayIsPrintable)
+ O->OS << " record string = '" << Str << "'";
+ break;
+ }
+ }
+
+ if (Blob.data()) {
+ if (canDecodeBlob(Code, BlockID)) {
+ if (Error E = decodeMetadataStringsBlob(Indent, Record, Blob, O->OS))
+ return E;
+ } else {
+ O->OS << " blob data = ";
+ if (O->ShowBinaryBlobs) {
+ O->OS << "'";
+ O->OS.write_escaped(Blob, /*hex=*/true) << "'";
+ } else {
+ 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)
+ O->OS << "'" << Blob << "'";
+ else
+ O->OS << "unprintable, " << Blob.size() << " bytes.";
+ }
+ }
+ }
+
+ O->OS << "\n";
+ }
+
+ // Make sure that we can skip the current record.
+ if (Error Err = Stream.JumpToBit(CurrentRecordPos))
+ return Err;
+ if (Expected<unsigned> Skipped = Stream.skipRecord(Entry.ID))
+ ; // Do nothing.
+ else
+ return Skipped.takeError();
+ }
+}
+
Modified: llvm/trunk/lib/Bitcode/Reader/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Bitcode/Reader/CMakeLists.txt?rev=365286&r1=365285&r2=365286&view=diff
==============================================================================
--- llvm/trunk/lib/Bitcode/Reader/CMakeLists.txt (original)
+++ llvm/trunk/lib/Bitcode/Reader/CMakeLists.txt Sun Jul 7 19:06:34 2019
@@ -1,4 +1,5 @@
add_llvm_library(LLVMBitReader
+ BitcodeAnalyzer.cpp
BitReader.cpp
BitcodeReader.cpp
MetadataLoader.cpp
Modified: llvm/trunk/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp?rev=365286&r1=365285&r2=365286&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp (original)
+++ llvm/trunk/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp Sun Jul 7 19:06:34 2019
@@ -26,22 +26,18 @@
//
//===----------------------------------------------------------------------===//
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/Bitcode/BitcodeReader.h"
-#include "llvm/Bitstream/BitstreamReader.h"
-#include "llvm/Bitcode/LLVMBitCodes.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/Bitcode/BitcodeAnalyzer.h"
#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Format.h"
+#include "llvm/Support/Error.h"
#include "llvm/Support/InitLLVM.h"
-#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/SHA1.h"
-#include "llvm/Support/WithColor.h"
#include "llvm/Support/raw_ostream.h"
+#include <memory>
using namespace llvm;
static cl::opt<std::string>
- InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
+ InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
static cl::opt<bool> Dump("dump", cl::desc("Dump low level bitcode trace"));
@@ -52,1009 +48,66 @@ static cl::opt<bool> Dump("dump", cl::de
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 numeric info in dump even if"
- " symbolic info is available"));
+static cl::opt<bool> NonSymbolic("non-symbolic",
+ 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"));
+ BlockInfoFilename("block-info",
+ cl::desc("Use the BLOCK_INFO from the given file"));
static cl::opt<bool>
- ShowBinaryBlobs("show-binary-blobs",
- cl::desc("Print binary blobs using hex escapes"));
+ ShowBinaryBlobs("show-binary-blobs",
+ cl::desc("Print binary blobs using hex escapes"));
static cl::opt<std::string> CheckHash(
"check-hash",
cl::desc("Check module hash using the argument as a string table"));
-namespace {
-
-/// CurStreamTypeType - A type for CurStreamType
-enum CurStreamTypeType {
- UnknownBitstream,
- LLVMIRBitstream,
- ClangSerializedASTBitstream,
- ClangSerializedDiagnosticsBitstream,
-};
-
-}
-
-/// GetBlockName - Return a symbolic block name if known, otherwise return
-/// null.
-static const char *GetBlockName(unsigned BlockID,
- const BitstreamBlockInfo &BlockInfo,
- CurStreamTypeType CurStreamType) {
- // Standard blocks for all bitcode files.
- if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
- if (BlockID == bitc::BLOCKINFO_BLOCK_ID)
- return "BLOCKINFO_BLOCK";
- return nullptr;
- }
-
- // Check to see if we have a blockinfo record for this block, with a name.
- if (const BitstreamBlockInfo::BlockInfo *Info =
- BlockInfo.getBlockInfo(BlockID)) {
- if (!Info->Name.empty())
- return Info->Name.c_str();
- }
-
-
- if (CurStreamType != LLVMIRBitstream) return nullptr;
-
- switch (BlockID) {
- default: return nullptr;
- case bitc::OPERAND_BUNDLE_TAGS_BLOCK_ID: return "OPERAND_BUNDLE_TAGS_BLOCK";
- 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::IDENTIFICATION_BLOCK_ID:
- return "IDENTIFICATION_BLOCK_ID";
- case bitc::VALUE_SYMTAB_BLOCK_ID: return "VALUE_SYMTAB";
- case bitc::METADATA_BLOCK_ID: return "METADATA_BLOCK";
- case bitc::METADATA_KIND_BLOCK_ID: return "METADATA_KIND_BLOCK";
- case bitc::METADATA_ATTACHMENT_ID: return "METADATA_ATTACHMENT_BLOCK";
- case bitc::USELIST_BLOCK_ID: return "USELIST_BLOCK_ID";
- case bitc::GLOBALVAL_SUMMARY_BLOCK_ID:
- return "GLOBALVAL_SUMMARY_BLOCK";
- case bitc::FULL_LTO_GLOBALVAL_SUMMARY_BLOCK_ID:
- return "FULL_LTO_GLOBALVAL_SUMMARY_BLOCK";
- case bitc::MODULE_STRTAB_BLOCK_ID: return "MODULE_STRTAB_BLOCK";
- case bitc::STRTAB_BLOCK_ID: return "STRTAB_BLOCK";
- case bitc::SYMTAB_BLOCK_ID: return "SYMTAB_BLOCK";
- }
-}
-
-/// GetCodeName - Return a symbolic code name if known, otherwise return
-/// null.
-static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
- const BitstreamBlockInfo &BlockInfo,
- CurStreamTypeType CurStreamType) {
- // Standard blocks for all bitcode files.
- if (BlockID < bitc::FIRST_APPLICATION_BLOCKID) {
- if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
- switch (CodeID) {
- 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 nullptr;
- }
-
- // Check to see if we have a blockinfo record for this record, with a name.
- if (const BitstreamBlockInfo::BlockInfo *Info =
- BlockInfo.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 nullptr;
-
-#define STRINGIFY_CODE(PREFIX, CODE) \
- case bitc::PREFIX##_##CODE: \
- return #CODE;
- switch (BlockID) {
- default: return nullptr;
- case bitc::MODULE_BLOCK_ID:
- switch (CodeID) {
- default: return nullptr;
- STRINGIFY_CODE(MODULE_CODE, VERSION)
- STRINGIFY_CODE(MODULE_CODE, TRIPLE)
- STRINGIFY_CODE(MODULE_CODE, DATALAYOUT)
- STRINGIFY_CODE(MODULE_CODE, ASM)
- STRINGIFY_CODE(MODULE_CODE, SECTIONNAME)
- STRINGIFY_CODE(MODULE_CODE, DEPLIB) // FIXME: Remove in 4.0
- STRINGIFY_CODE(MODULE_CODE, GLOBALVAR)
- STRINGIFY_CODE(MODULE_CODE, FUNCTION)
- STRINGIFY_CODE(MODULE_CODE, ALIAS)
- STRINGIFY_CODE(MODULE_CODE, GCNAME)
- STRINGIFY_CODE(MODULE_CODE, VSTOFFSET)
- STRINGIFY_CODE(MODULE_CODE, METADATA_VALUES_UNUSED)
- STRINGIFY_CODE(MODULE_CODE, SOURCE_FILENAME)
- STRINGIFY_CODE(MODULE_CODE, HASH)
- }
- case bitc::IDENTIFICATION_BLOCK_ID:
- switch (CodeID) {
- default:
- return nullptr;
- STRINGIFY_CODE(IDENTIFICATION_CODE, STRING)
- STRINGIFY_CODE(IDENTIFICATION_CODE, EPOCH)
- }
- case bitc::PARAMATTR_BLOCK_ID:
- switch (CodeID) {
- default: return nullptr;
- // FIXME: Should these be different?
- case bitc::PARAMATTR_CODE_ENTRY_OLD: return "ENTRY";
- case bitc::PARAMATTR_CODE_ENTRY: return "ENTRY";
- }
- case bitc::PARAMATTR_GROUP_BLOCK_ID:
- switch (CodeID) {
- default: return nullptr;
- case bitc::PARAMATTR_GRP_CODE_ENTRY: return "ENTRY";
- }
- case bitc::TYPE_BLOCK_ID_NEW:
- switch (CodeID) {
- default: return nullptr;
- STRINGIFY_CODE(TYPE_CODE, NUMENTRY)
- STRINGIFY_CODE(TYPE_CODE, VOID)
- STRINGIFY_CODE(TYPE_CODE, FLOAT)
- STRINGIFY_CODE(TYPE_CODE, DOUBLE)
- STRINGIFY_CODE(TYPE_CODE, LABEL)
- STRINGIFY_CODE(TYPE_CODE, OPAQUE)
- STRINGIFY_CODE(TYPE_CODE, INTEGER)
- STRINGIFY_CODE(TYPE_CODE, POINTER)
- STRINGIFY_CODE(TYPE_CODE, ARRAY)
- STRINGIFY_CODE(TYPE_CODE, VECTOR)
- STRINGIFY_CODE(TYPE_CODE, X86_FP80)
- STRINGIFY_CODE(TYPE_CODE, FP128)
- STRINGIFY_CODE(TYPE_CODE, PPC_FP128)
- STRINGIFY_CODE(TYPE_CODE, METADATA)
- STRINGIFY_CODE(TYPE_CODE, STRUCT_ANON)
- STRINGIFY_CODE(TYPE_CODE, STRUCT_NAME)
- STRINGIFY_CODE(TYPE_CODE, STRUCT_NAMED)
- STRINGIFY_CODE(TYPE_CODE, FUNCTION)
- }
-
- case bitc::CONSTANTS_BLOCK_ID:
- switch (CodeID) {
- default: return nullptr;
- STRINGIFY_CODE(CST_CODE, SETTYPE)
- STRINGIFY_CODE(CST_CODE, NULL)
- STRINGIFY_CODE(CST_CODE, UNDEF)
- STRINGIFY_CODE(CST_CODE, INTEGER)
- STRINGIFY_CODE(CST_CODE, WIDE_INTEGER)
- STRINGIFY_CODE(CST_CODE, FLOAT)
- STRINGIFY_CODE(CST_CODE, AGGREGATE)
- STRINGIFY_CODE(CST_CODE, STRING)
- STRINGIFY_CODE(CST_CODE, CSTRING)
- STRINGIFY_CODE(CST_CODE, CE_BINOP)
- STRINGIFY_CODE(CST_CODE, CE_CAST)
- STRINGIFY_CODE(CST_CODE, CE_GEP)
- STRINGIFY_CODE(CST_CODE, CE_INBOUNDS_GEP)
- STRINGIFY_CODE(CST_CODE, CE_SELECT)
- STRINGIFY_CODE(CST_CODE, CE_EXTRACTELT)
- STRINGIFY_CODE(CST_CODE, CE_INSERTELT)
- STRINGIFY_CODE(CST_CODE, CE_SHUFFLEVEC)
- STRINGIFY_CODE(CST_CODE, CE_CMP)
- STRINGIFY_CODE(CST_CODE, INLINEASM)
- STRINGIFY_CODE(CST_CODE, CE_SHUFVEC_EX)
- STRINGIFY_CODE(CST_CODE, CE_UNOP)
- case bitc::CST_CODE_BLOCKADDRESS: return "CST_CODE_BLOCKADDRESS";
- STRINGIFY_CODE(CST_CODE, DATA)
- }
- case bitc::FUNCTION_BLOCK_ID:
- switch (CodeID) {
- default: return nullptr;
- STRINGIFY_CODE(FUNC_CODE, DECLAREBLOCKS)
- STRINGIFY_CODE(FUNC_CODE, INST_BINOP)
- STRINGIFY_CODE(FUNC_CODE, INST_CAST)
- STRINGIFY_CODE(FUNC_CODE, INST_GEP_OLD)
- STRINGIFY_CODE(FUNC_CODE, INST_INBOUNDS_GEP_OLD)
- STRINGIFY_CODE(FUNC_CODE, INST_SELECT)
- STRINGIFY_CODE(FUNC_CODE, INST_EXTRACTELT)
- STRINGIFY_CODE(FUNC_CODE, INST_INSERTELT)
- STRINGIFY_CODE(FUNC_CODE, INST_SHUFFLEVEC)
- STRINGIFY_CODE(FUNC_CODE, INST_CMP)
- STRINGIFY_CODE(FUNC_CODE, INST_RET)
- STRINGIFY_CODE(FUNC_CODE, INST_BR)
- STRINGIFY_CODE(FUNC_CODE, INST_SWITCH)
- STRINGIFY_CODE(FUNC_CODE, INST_INVOKE)
- STRINGIFY_CODE(FUNC_CODE, INST_UNOP)
- STRINGIFY_CODE(FUNC_CODE, INST_UNREACHABLE)
- STRINGIFY_CODE(FUNC_CODE, INST_CLEANUPRET)
- STRINGIFY_CODE(FUNC_CODE, INST_CATCHRET)
- STRINGIFY_CODE(FUNC_CODE, INST_CATCHPAD)
- STRINGIFY_CODE(FUNC_CODE, INST_PHI)
- STRINGIFY_CODE(FUNC_CODE, INST_ALLOCA)
- STRINGIFY_CODE(FUNC_CODE, INST_LOAD)
- STRINGIFY_CODE(FUNC_CODE, INST_VAARG)
- STRINGIFY_CODE(FUNC_CODE, INST_STORE)
- STRINGIFY_CODE(FUNC_CODE, INST_EXTRACTVAL)
- STRINGIFY_CODE(FUNC_CODE, INST_INSERTVAL)
- STRINGIFY_CODE(FUNC_CODE, INST_CMP2)
- STRINGIFY_CODE(FUNC_CODE, INST_VSELECT)
- STRINGIFY_CODE(FUNC_CODE, DEBUG_LOC_AGAIN)
- STRINGIFY_CODE(FUNC_CODE, INST_CALL)
- STRINGIFY_CODE(FUNC_CODE, DEBUG_LOC)
- STRINGIFY_CODE(FUNC_CODE, INST_GEP)
- STRINGIFY_CODE(FUNC_CODE, OPERAND_BUNDLE)
- STRINGIFY_CODE(FUNC_CODE, INST_FENCE)
- STRINGIFY_CODE(FUNC_CODE, INST_ATOMICRMW)
- STRINGIFY_CODE(FUNC_CODE, INST_LOADATOMIC)
- STRINGIFY_CODE(FUNC_CODE, INST_STOREATOMIC)
- STRINGIFY_CODE(FUNC_CODE, INST_CMPXCHG)
- STRINGIFY_CODE(FUNC_CODE, INST_CALLBR)
- }
- case bitc::VALUE_SYMTAB_BLOCK_ID:
- switch (CodeID) {
- default: return nullptr;
- STRINGIFY_CODE(VST_CODE, ENTRY)
- STRINGIFY_CODE(VST_CODE, BBENTRY)
- STRINGIFY_CODE(VST_CODE, FNENTRY)
- STRINGIFY_CODE(VST_CODE, COMBINED_ENTRY)
- }
- case bitc::MODULE_STRTAB_BLOCK_ID:
- switch (CodeID) {
- default:
- return nullptr;
- STRINGIFY_CODE(MST_CODE, ENTRY)
- STRINGIFY_CODE(MST_CODE, HASH)
- }
- case bitc::GLOBALVAL_SUMMARY_BLOCK_ID:
- case bitc::FULL_LTO_GLOBALVAL_SUMMARY_BLOCK_ID:
- switch (CodeID) {
- default:
- return nullptr;
- STRINGIFY_CODE(FS, PERMODULE)
- STRINGIFY_CODE(FS, PERMODULE_PROFILE)
- STRINGIFY_CODE(FS, PERMODULE_RELBF)
- STRINGIFY_CODE(FS, PERMODULE_GLOBALVAR_INIT_REFS)
- STRINGIFY_CODE(FS, PERMODULE_VTABLE_GLOBALVAR_INIT_REFS)
- STRINGIFY_CODE(FS, COMBINED)
- STRINGIFY_CODE(FS, COMBINED_PROFILE)
- STRINGIFY_CODE(FS, COMBINED_GLOBALVAR_INIT_REFS)
- STRINGIFY_CODE(FS, ALIAS)
- STRINGIFY_CODE(FS, COMBINED_ALIAS)
- STRINGIFY_CODE(FS, COMBINED_ORIGINAL_NAME)
- STRINGIFY_CODE(FS, VERSION)
- STRINGIFY_CODE(FS, FLAGS)
- STRINGIFY_CODE(FS, TYPE_TESTS)
- STRINGIFY_CODE(FS, TYPE_TEST_ASSUME_VCALLS)
- STRINGIFY_CODE(FS, TYPE_CHECKED_LOAD_VCALLS)
- STRINGIFY_CODE(FS, TYPE_TEST_ASSUME_CONST_VCALL)
- STRINGIFY_CODE(FS, TYPE_CHECKED_LOAD_CONST_VCALL)
- STRINGIFY_CODE(FS, VALUE_GUID)
- STRINGIFY_CODE(FS, CFI_FUNCTION_DEFS)
- STRINGIFY_CODE(FS, CFI_FUNCTION_DECLS)
- STRINGIFY_CODE(FS, TYPE_ID)
- STRINGIFY_CODE(FS, TYPE_ID_METADATA)
- }
- case bitc::METADATA_ATTACHMENT_ID:
- switch(CodeID) {
- default:return nullptr;
- STRINGIFY_CODE(METADATA, ATTACHMENT)
- }
- case bitc::METADATA_BLOCK_ID:
- switch(CodeID) {
- default:return nullptr;
- STRINGIFY_CODE(METADATA, STRING_OLD)
- STRINGIFY_CODE(METADATA, VALUE)
- STRINGIFY_CODE(METADATA, NODE)
- STRINGIFY_CODE(METADATA, NAME)
- STRINGIFY_CODE(METADATA, DISTINCT_NODE)
- STRINGIFY_CODE(METADATA, KIND) // Older bitcode has it in a MODULE_BLOCK
- STRINGIFY_CODE(METADATA, LOCATION)
- STRINGIFY_CODE(METADATA, OLD_NODE)
- STRINGIFY_CODE(METADATA, OLD_FN_NODE)
- STRINGIFY_CODE(METADATA, NAMED_NODE)
- STRINGIFY_CODE(METADATA, GENERIC_DEBUG)
- STRINGIFY_CODE(METADATA, SUBRANGE)
- STRINGIFY_CODE(METADATA, ENUMERATOR)
- STRINGIFY_CODE(METADATA, BASIC_TYPE)
- STRINGIFY_CODE(METADATA, FILE)
- STRINGIFY_CODE(METADATA, DERIVED_TYPE)
- STRINGIFY_CODE(METADATA, COMPOSITE_TYPE)
- STRINGIFY_CODE(METADATA, SUBROUTINE_TYPE)
- STRINGIFY_CODE(METADATA, COMPILE_UNIT)
- STRINGIFY_CODE(METADATA, SUBPROGRAM)
- STRINGIFY_CODE(METADATA, LEXICAL_BLOCK)
- STRINGIFY_CODE(METADATA, LEXICAL_BLOCK_FILE)
- STRINGIFY_CODE(METADATA, NAMESPACE)
- STRINGIFY_CODE(METADATA, TEMPLATE_TYPE)
- STRINGIFY_CODE(METADATA, TEMPLATE_VALUE)
- STRINGIFY_CODE(METADATA, GLOBAL_VAR)
- STRINGIFY_CODE(METADATA, LOCAL_VAR)
- STRINGIFY_CODE(METADATA, EXPRESSION)
- STRINGIFY_CODE(METADATA, OBJC_PROPERTY)
- STRINGIFY_CODE(METADATA, IMPORTED_ENTITY)
- STRINGIFY_CODE(METADATA, MODULE)
- STRINGIFY_CODE(METADATA, MACRO)
- STRINGIFY_CODE(METADATA, MACRO_FILE)
- STRINGIFY_CODE(METADATA, STRINGS)
- STRINGIFY_CODE(METADATA, GLOBAL_DECL_ATTACHMENT)
- STRINGIFY_CODE(METADATA, GLOBAL_VAR_EXPR)
- STRINGIFY_CODE(METADATA, INDEX_OFFSET)
- STRINGIFY_CODE(METADATA, INDEX)
- }
- case bitc::METADATA_KIND_BLOCK_ID:
- switch (CodeID) {
- default:
- return nullptr;
- STRINGIFY_CODE(METADATA, KIND)
- }
- case bitc::USELIST_BLOCK_ID:
- switch(CodeID) {
- default:return nullptr;
- case bitc::USELIST_CODE_DEFAULT: return "USELIST_CODE_DEFAULT";
- case bitc::USELIST_CODE_BB: return "USELIST_CODE_BB";
- }
-
- case bitc::OPERAND_BUNDLE_TAGS_BLOCK_ID:
- switch(CodeID) {
- default: return nullptr;
- case bitc::OPERAND_BUNDLE_TAG: return "OPERAND_BUNDLE_TAG";
- }
- case bitc::STRTAB_BLOCK_ID:
- switch(CodeID) {
- default: return nullptr;
- case bitc::STRTAB_BLOB: return "BLOB";
- }
- case bitc::SYMTAB_BLOCK_ID:
- switch(CodeID) {
- default: return nullptr;
- case bitc::SYMTAB_BLOB: return "BLOB";
- }
- }
-#undef STRINGIFY_CODE
+static Error reportError(StringRef Message) {
+ return createStringError(std::errc::illegal_byte_sequence, Message.data());
}
-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;
-
-/// All bitcode analysis errors go through this function, making this a good
-/// place to breakpoint if debugging.
-static bool ReportError(const Twine &Err) {
- WithColor::error() << Err << "\n";
- return true;
-}
-
-static bool ReportError(Error &&Err) {
- return ReportError(toString(std::move(Err)));
-}
-
-static bool decodeMetadataStringsBlob(StringRef Indent,
- ArrayRef<uint64_t> Record,
- StringRef Blob) {
- if (Blob.empty())
- return true;
-
- if (Record.size() != 2)
- return true;
-
- unsigned NumStrings = Record[0];
- unsigned StringsOffset = Record[1];
- outs() << " num-strings = " << NumStrings << " {\n";
-
- StringRef Lengths = Blob.slice(0, StringsOffset);
- SimpleBitstreamCursor R(Lengths);
- StringRef Strings = Blob.drop_front(StringsOffset);
- do {
- if (R.AtEndOfStream())
- return ReportError("bad length");
-
- Expected<uint32_t> MaybeSize = R.ReadVBR(6);
- if (!MaybeSize)
- return ReportError(MaybeSize.takeError());
- uint32_t Size = MaybeSize.get();
- if (Strings.size() < Size)
- return ReportError("truncated chars");
-
- outs() << Indent << " '";
- outs().write_escaped(Strings.slice(0, Size), /*hex=*/true);
- outs() << "'\n";
- Strings = Strings.drop_front(Size);
- } while (--NumStrings);
-
- outs() << Indent << " }";
- return false;
-}
-
-static bool decodeBlob(unsigned Code, unsigned BlockID, StringRef Indent,
- ArrayRef<uint64_t> Record, StringRef Blob) {
- if (BlockID != bitc::METADATA_BLOCK_ID)
- return true;
- if (Code != bitc::METADATA_STRINGS)
- return true;
-
- return decodeMetadataStringsBlob(Indent, Record, Blob);
-}
-
-/// ParseBlock - Read a block, updating statistics, etc.
-static bool ParseBlock(BitstreamCursor &Stream, BitstreamBlockInfo &BlockInfo,
- unsigned BlockID, unsigned IndentLevel,
- CurStreamTypeType CurStreamType) {
- 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.
- bool DumpRecords = Dump;
- if (BlockID == bitc::BLOCKINFO_BLOCK_ID) {
- if (Dump) outs() << Indent << "<BLOCKINFO_BLOCK/>\n";
- Expected<Optional<BitstreamBlockInfo>> MaybeNewBlockInfo =
- Stream.ReadBlockInfoBlock(/*ReadBlockInfoNames=*/true);
- if (!MaybeNewBlockInfo)
- return ReportError(MaybeNewBlockInfo.takeError());
- Optional<BitstreamBlockInfo> NewBlockInfo =
- std::move(MaybeNewBlockInfo.get());
- if (!NewBlockInfo)
- return ReportError("Malformed BlockInfoBlock");
- BlockInfo = std::move(*NewBlockInfo);
- if (Error Err = Stream.JumpToBit(BlockBitStart))
- return ReportError(std::move(Err));
- // It's not really interesting to dump the contents of the blockinfo block.
- DumpRecords = false;
- }
-
- unsigned NumWords = 0;
- if (Error Err = Stream.EnterSubBlock(BlockID, &NumWords))
- return ReportError(std::move(Err));
-
- // Keep it for later, when we see a MODULE_HASH record
- uint64_t BlockEntryPos = Stream.getCurrentByteNo();
-
- const char *BlockName = nullptr;
- if (DumpRecords) {
- outs() << Indent << "<";
- if ((BlockName = GetBlockName(BlockID, BlockInfo, CurStreamType)))
- outs() << BlockName;
- else
- outs() << "UnknownBlock" << BlockID;
-
- if (NonSymbolic && BlockName)
- outs() << " BlockID=" << BlockID;
-
- outs() << " NumWords=" << NumWords
- << " BlockCodeSize=" << Stream.getAbbrevIDWidth() << ">\n";
- }
-
- SmallVector<uint64_t, 64> Record;
-
- // Keep the offset to the metadata index if seen.
- uint64_t MetadataIndexOffset = 0;
-
- // Read all the records for this block.
- while (1) {
- if (Stream.AtEndOfStream())
- return ReportError("Premature end of bitstream");
-
- uint64_t RecordStartBit = Stream.GetCurrentBitNo();
-
- Expected<BitstreamEntry> MaybeEntry =
- Stream.advance(BitstreamCursor::AF_DontAutoprocessAbbrevs);
- if (!MaybeEntry)
- return ReportError(MaybeEntry.takeError());
- BitstreamEntry Entry = MaybeEntry.get();
-
- switch (Entry.Kind) {
- case BitstreamEntry::Error:
- return ReportError("malformed bitcode file");
- case BitstreamEntry::EndBlock: {
- uint64_t BlockBitEnd = Stream.GetCurrentBitNo();
- BlockStats.NumBits += BlockBitEnd-BlockBitStart;
- if (DumpRecords) {
- 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, BlockInfo, Entry.ID, IndentLevel + 1,
- CurStreamType))
- 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) {
- if (Error Err = Stream.ReadAbbrevRecord())
- return ReportError(std::move(Err));
- ++BlockStats.NumAbbrevs;
- continue;
- }
-
- Record.clear();
-
- ++BlockStats.NumRecords;
-
- StringRef Blob;
- uint64_t CurrentRecordPos = Stream.GetCurrentBitNo();
- Expected<unsigned> MaybeCode = Stream.readRecord(Entry.ID, Record, &Blob);
- if (!MaybeCode)
- return ReportError(MaybeCode.takeError());
- unsigned Code = MaybeCode.get();
-
- // 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 (DumpRecords) {
- outs() << Indent << " <";
- if (const char *CodeName =
- GetCodeName(Code, BlockID, BlockInfo, CurStreamType))
- outs() << CodeName;
- else
- outs() << "UnknownCode" << Code;
- if (NonSymbolic && GetCodeName(Code, BlockID, BlockInfo, CurStreamType))
- outs() << " codeid=" << Code;
- const BitCodeAbbrev *Abbv = nullptr;
- if (Entry.ID != bitc::UNABBREV_RECORD) {
- Abbv = Stream.getAbbrev(Entry.ID);
- outs() << " abbrevid=" << Entry.ID;
- }
-
- for (unsigned i = 0, e = Record.size(); i != e; ++i)
- outs() << " op" << i << "=" << (int64_t)Record[i];
-
- // If we found a metadata index, let's verify that we had an offset before
- // and validate its forward reference offset was correct!
- if (BlockID == bitc::METADATA_BLOCK_ID) {
- if (Code == bitc::METADATA_INDEX_OFFSET) {
- if (Record.size() != 2)
- outs() << "(Invalid record)";
- else {
- auto Offset = Record[0] + (Record[1] << 32);
- MetadataIndexOffset = Stream.GetCurrentBitNo() + Offset;
- }
- }
- if (Code == bitc::METADATA_INDEX) {
- outs() << " (offset ";
- if (MetadataIndexOffset == RecordStartBit)
- outs() << "match)";
- else
- outs() << "mismatch: " << MetadataIndexOffset << " vs "
- << RecordStartBit << ")";
- }
- }
-
- // If we found a module hash, let's verify that it matches!
- if (BlockID == bitc::MODULE_BLOCK_ID && Code == bitc::MODULE_CODE_HASH &&
- !CheckHash.empty()) {
- if (Record.size() != 5)
- outs() << " (invalid)";
- else {
- // Recompute the hash and compare it to the one in the bitcode
- SHA1 Hasher;
- StringRef Hash;
- Hasher.update(CheckHash);
- {
- int BlockSize = (CurrentRecordPos / 8) - BlockEntryPos;
- auto Ptr = Stream.getPointerToByte(BlockEntryPos, BlockSize);
- Hasher.update(ArrayRef<uint8_t>(Ptr, BlockSize));
- Hash = Hasher.result();
- }
- SmallString<20> RecordedHash;
- RecordedHash.resize(20);
- int Pos = 0;
- for (auto &Val : Record) {
- assert(!(Val >> 32) && "Unexpected high bits set");
- RecordedHash[Pos++] = (Val >> 24) & 0xFF;
- RecordedHash[Pos++] = (Val >> 16) & 0xFF;
- RecordedHash[Pos++] = (Val >> 8) & 0xFF;
- RecordedHash[Pos++] = (Val >> 0) & 0xFF;
- }
- if (Hash == RecordedHash)
- outs() << " (match)";
- else
- outs() << " (!mismatch!)";
- }
- }
-
- outs() << "/>";
-
- if (Abbv) {
- for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i != e; ++i) {
- const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i);
- if (!Op.isEncoding() || Op.getEncoding() != BitCodeAbbrevOp::Array)
- continue;
- assert(i + 2 == e && "Array op not second to last");
- std::string Str;
- bool ArrayIsPrintable = true;
- for (unsigned j = i - 1, je = Record.size(); j != je; ++j) {
- if (!isPrint(static_cast<unsigned char>(Record[j]))) {
- ArrayIsPrintable = false;
- break;
- }
- Str += (char)Record[j];
- }
- if (ArrayIsPrintable)
- outs() << " record string = '" << Str << "'";
- break;
- }
- }
-
- if (Blob.data() && decodeBlob(Code, BlockID, Indent, Record, Blob)) {
- outs() << " blob data = ";
- if (ShowBinaryBlobs) {
- outs() << "'";
- outs().write_escaped(Blob, /*hex=*/true) << "'";
- } else {
- 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";
- }
-
- // Make sure that we can skip the current record.
- if (Error Err = Stream.JumpToBit(CurrentRecordPos))
- return ReportError(std::move(Err));
- if (Expected<unsigned> Skipped = Stream.skipRecord(Entry.ID))
- ; // Do nothing.
- else
- return ReportError(Skipped.takeError());
- }
-}
-
-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));
-}
-
-static Expected<CurStreamTypeType> ReadSignature(BitstreamCursor &Stream) {
- auto tryRead = [&Stream](char &Dest, size_t size) -> Error {
- if (Expected<SimpleBitstreamCursor::word_t> MaybeWord = Stream.Read(size))
- Dest = MaybeWord.get();
- else
- return MaybeWord.takeError();
- return Error::success();
- };
-
- char Signature[6];
- if (Error Err = tryRead(Signature[0], 8))
- return std::move(Err);
- if (Error Err = tryRead(Signature[1], 8))
- return std::move(Err);
-
- // Autodetect the file contents, if it is one we know.
- if (Signature[0] == 'C' && Signature[1] == 'P') {
- if (Error Err = tryRead(Signature[2], 8))
- return std::move(Err);
- if (Error Err = tryRead(Signature[3], 8))
- return std::move(Err);
- if (Signature[2] == 'C' && Signature[3] == 'H')
- return ClangSerializedASTBitstream;
- } else if (Signature[0] == 'D' && Signature[1] == 'I') {
- if (Error Err = tryRead(Signature[2], 8))
- return std::move(Err);
- if (Error Err = tryRead(Signature[3], 8))
- return std::move(Err);
- if (Signature[2] == 'A' && Signature[3] == 'G')
- return ClangSerializedDiagnosticsBitstream;
- } else {
- if (Error Err = tryRead(Signature[2], 4))
- return std::move(Err);
- if (Error Err = tryRead(Signature[3], 4))
- return std::move(Err);
- if (Error Err = tryRead(Signature[4], 4))
- return std::move(Err);
- if (Error Err = tryRead(Signature[5], 4))
- return std::move(Err);
- if (Signature[0] == 'B' && Signature[1] == 'C' &&
- Signature[2] == 0x0 && Signature[3] == 0xC &&
- Signature[4] == 0xE && Signature[5] == 0xD)
- return LLVMIRBitstream;
- }
- return UnknownBitstream;
-}
-
-static bool openBitcodeFile(StringRef Path,
- std::unique_ptr<MemoryBuffer> &MemBuf,
- BitstreamCursor &Stream,
- CurStreamTypeType &CurStreamType) {
+static Expected<std::unique_ptr<MemoryBuffer>> openBitcodeFile(StringRef Path) {
// Read the input file.
- ErrorOr<std::unique_ptr<MemoryBuffer>> MemBufOrErr =
- MemoryBuffer::getFileOrSTDIN(Path);
- if (std::error_code EC = MemBufOrErr.getError())
- return ReportError(Twine("ReportError reading '") + Path + "': " + EC.message());
- MemBuf = std::move(MemBufOrErr.get());
-
- if (MemBuf->getBufferSize() & 3)
- return ReportError("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();
+ Expected<std::unique_ptr<MemoryBuffer>> MemBufOrErr =
+ errorOrToExpected(MemoryBuffer::getFileOrSTDIN(Path));
+ if (Error E = MemBufOrErr.takeError())
+ return std::move(E);
- // 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 (MemBuf->getBufferSize() < BWH_HeaderSize)
- return ReportError("Invalid bitcode wrapper header");
+ std::unique_ptr<MemoryBuffer> MemBuf = std::move(*MemBufOrErr);
- if (Dump) {
- unsigned Magic = support::endian::read32le(&BufPtr[BWH_MagicField]);
- unsigned Version = support::endian::read32le(&BufPtr[BWH_VersionField]);
- unsigned Offset = support::endian::read32le(&BufPtr[BWH_OffsetField]);
- unsigned Size = support::endian::read32le(&BufPtr[BWH_SizeField]);
- unsigned CPUType = support::endian::read32le(&BufPtr[BWH_CPUTypeField]);
-
- outs() << "<BITCODE_WRAPPER_HEADER"
- << " Magic=" << format_hex(Magic, 10)
- << " Version=" << format_hex(Version, 10)
- << " Offset=" << format_hex(Offset, 10)
- << " Size=" << format_hex(Size, 10)
- << " CPUType=" << format_hex(CPUType, 10) << "/>\n";
- }
-
- if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr, true))
- return ReportError("Invalid bitcode wrapper header");
- }
-
- Stream = BitstreamCursor(ArrayRef<uint8_t>(BufPtr, EndBufPtr));
- Expected<CurStreamTypeType> MaybeSignature = ReadSignature(Stream);
- if (!MaybeSignature)
- return ReportError(MaybeSignature.takeError());
- CurStreamType = std::move(MaybeSignature.get());
-
- return false;
+ if (MemBuf->getBufferSize() & 3)
+ return reportError(
+ "Bitcode stream should be a multiple of 4 bytes in length");
+ return std::move(MemBuf);
}
-/// AnalyzeBitcode - Analyze the bitcode file specified by InputFilename.
-static int AnalyzeBitcode() {
- std::unique_ptr<MemoryBuffer> StreamBuffer;
- BitstreamCursor Stream;
- BitstreamBlockInfo BlockInfo;
- CurStreamTypeType CurStreamType;
- if (openBitcodeFile(InputFilename, StreamBuffer, Stream, CurStreamType))
- return true;
- Stream.setBlockInfo(&BlockInfo);
-
- // Read block info from BlockInfoFilename, if specified.
- // The block info must be a top-level block.
- if (!BlockInfoFilename.empty()) {
- std::unique_ptr<MemoryBuffer> BlockInfoBuffer;
- BitstreamCursor BlockInfoCursor;
- CurStreamTypeType BlockInfoStreamType;
- if (openBitcodeFile(BlockInfoFilename, BlockInfoBuffer, BlockInfoCursor,
- BlockInfoStreamType))
- return true;
-
- while (!BlockInfoCursor.AtEndOfStream()) {
- Expected<unsigned> MaybeCode = BlockInfoCursor.ReadCode();
- if (!MaybeCode)
- return ReportError(MaybeCode.takeError());
- if (MaybeCode.get() != bitc::ENTER_SUBBLOCK)
- return ReportError("Invalid record at top-level in block info file");
-
- Expected<unsigned> MaybeBlockID = BlockInfoCursor.ReadSubBlockID();
- if (!MaybeBlockID)
- return ReportError(MaybeBlockID.takeError());
- if (MaybeBlockID.get() == bitc::BLOCKINFO_BLOCK_ID) {
- Expected<Optional<BitstreamBlockInfo>> MaybeNewBlockInfo =
- BlockInfoCursor.ReadBlockInfoBlock(/*ReadBlockInfoNames=*/true);
- if (!MaybeNewBlockInfo)
- return ReportError(MaybeNewBlockInfo.takeError());
- Optional<BitstreamBlockInfo> NewBlockInfo =
- std::move(MaybeNewBlockInfo.get());
- if (!NewBlockInfo)
- return ReportError("Malformed BlockInfoBlock in block info file");
- BlockInfo = std::move(*NewBlockInfo);
- break;
- }
-
- if (Error Err = BlockInfoCursor.SkipBlock())
- return ReportError(std::move(Err));
- }
- }
-
- unsigned NumTopBlocks = 0;
-
- // Parse the top-level structure. We only allow blocks at the top-level.
- while (!Stream.AtEndOfStream()) {
- Expected<unsigned> MaybeCode = Stream.ReadCode();
- if (!MaybeCode)
- return ReportError(MaybeCode.takeError());
- if (MaybeCode.get() != bitc::ENTER_SUBBLOCK)
- return ReportError("Invalid record at top-level");
-
- Expected<unsigned> MaybeBlockID = Stream.ReadSubBlockID();
- if (!MaybeBlockID)
- return ReportError(MaybeBlockID.takeError());
-
- if (ParseBlock(Stream, BlockInfo, MaybeBlockID.get(), 0, CurStreamType))
- return true;
- ++NumTopBlocks;
- }
-
- if (Dump) outs() << "\n\n";
-
- uint64_t BufferSizeBits = Stream.getBitcodeBytes().size() * CHAR_BIT;
- // Print a summary of the read file.
- outs() << "Summary of " << InputFilename << ":\n";
- outs() << " Total size: ";
- PrintSize(BufferSizeBits);
- outs() << "\n";
- outs() << " Stream type: ";
- switch (CurStreamType) {
- case UnknownBitstream:
- outs() << "unknown\n";
- break;
- case LLVMIRBitstream:
- outs() << "LLVM IR\n";
- break;
- case ClangSerializedASTBitstream:
- outs() << "Clang Serialized AST\n";
- break;
- case ClangSerializedDiagnosticsBitstream:
- outs() << "Clang Serialized Diagnostics\n";
- break;
- }
- outs() << " # Toplevel Blocks: " << NumTopBlocks << "\n";
- outs() << "\n";
-
- // Emit per-block stats.
- outs() << "Per-block Summary:\n";
- 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, BlockInfo, CurStreamType))
- outs() << " (" << BlockName << ")";
- outs() << ":\n";
-
- const PerBlockIDStats &Stats = I->second;
- outs() << " Num Instances: " << Stats.NumInstances << "\n";
- outs() << " Total Size: ";
- PrintSize(Stats.NumBits);
- outs() << "\n";
- double pct = (Stats.NumBits * 100.0) / BufferSizeBits;
- outs() << " Percent of file: " << format("%2.4f%%", pct) << "\n";
- if (Stats.NumInstances > 1) {
- outs() << " Average Size: ";
- PrintSize(Stats.NumBits/(double)Stats.NumInstances);
- outs() << "\n";
- outs() << " Tot/Avg SubBlocks: " << Stats.NumSubBlocks << "/"
- << Stats.NumSubBlocks/(double)Stats.NumInstances << "\n";
- outs() << " Tot/Avg Abbrevs: " << Stats.NumAbbrevs << "/"
- << Stats.NumAbbrevs/(double)Stats.NumInstances << "\n";
- outs() << " Tot/Avg Records: " << Stats.NumRecords << "/"
- << Stats.NumRecords/(double)Stats.NumInstances << "\n";
- } else {
- outs() << " Num SubBlocks: " << Stats.NumSubBlocks << "\n";
- outs() << " Num Abbrevs: " << Stats.NumAbbrevs << "\n";
- outs() << " Num Records: " << Stats.NumRecords << "\n";
- }
- if (Stats.NumRecords) {
- double pct = (Stats.NumAbbreviatedRecords * 100.0) / Stats.NumRecords;
- outs() << " Percent Abbrevs: " << format("%2.4f%%", pct) << "\n";
- }
- outs() << "\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));
- llvm::stable_sort(FreqPairs);
- std::reverse(FreqPairs.begin(), FreqPairs.end());
+int main(int argc, char **argv) {
+ InitLLVM X(argc, argv);
+ cl::ParseCommandLineOptions(argc, argv, "llvm-bcanalyzer file analyzer\n");
+ ExitOnError ExitOnErr("llvm-bcanalyzer: ");
- outs() << "\tRecord Histogram:\n";
- outs() << "\t\t Count # Bits b/Rec % Abv Record Kind\n";
- for (unsigned i = 0, e = FreqPairs.size(); i != e; ++i) {
- const PerRecordStats &RecStats = Stats.CodeFreq[FreqPairs[i].second];
+ std::unique_ptr<MemoryBuffer> MB = ExitOnErr(openBitcodeFile(InputFilename));
+ std::unique_ptr<MemoryBuffer> BlockInfoMB = nullptr;
+ if (!BlockInfoFilename.empty())
+ BlockInfoMB = ExitOnErr(openBitcodeFile(BlockInfoFilename));
- outs() << format("\t\t%7d %9lu",
- RecStats.NumInstances,
- (unsigned long)RecStats.TotalBits);
+ BitcodeAnalyzer BA(MB->getBuffer(),
+ BlockInfoMB ? Optional<StringRef>(BlockInfoMB->getBuffer())
+ : None);
- if (RecStats.NumInstances > 1)
- outs() << format(" %9.1f",
- (double)RecStats.TotalBits/RecStats.NumInstances);
- else
- outs() << " ";
+ BCDumpOptions O(outs());
+ O.Histogram = !NoHistogram;
+ O.Symbolic = !NonSymbolic;
+ O.ShowBinaryBlobs = ShowBinaryBlobs;
- if (RecStats.NumAbbrev)
- outs() <<
- format(" %7.2f",
- (double)RecStats.NumAbbrev/RecStats.NumInstances*100);
- else
- outs() << " ";
+ ExitOnErr(
+ BA.analyze(O, CheckHash.empty() ? None : Optional<StringRef>(CheckHash)));
- outs() << " ";
- if (const char *CodeName = GetCodeName(FreqPairs[i].second, I->first,
- BlockInfo, CurStreamType))
- outs() << CodeName << "\n";
- else
- outs() << "UnknownCode" << FreqPairs[i].second << "\n";
- }
- outs() << "\n";
+ if (Dump)
+ outs() << "\n\n";
- }
- }
+ BA.printStats(O, StringRef(InputFilename.getValue()));
return 0;
}
-
-
-int main(int argc, char **argv) {
- InitLLVM X(argc, argv);
- cl::ParseCommandLineOptions(argc, argv, "llvm-bcanalyzer file analyzer\n");
- return AnalyzeBitcode();
-}
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