BitcodeWriter.cpp revision 4cc499d6e5ec602309501873449c938af61170b2
14cc499d6e5ec602309501873449c938af61170b2Stephen Hines//===--- Bitcode/Writer/BitcodeWriter.cpp - Bitcode Writer ----------------===// 24cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 34cc499d6e5ec602309501873449c938af61170b2Stephen Hines// The LLVM Compiler Infrastructure 44cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 54cc499d6e5ec602309501873449c938af61170b2Stephen Hines// This file is distributed under the University of Illinois Open Source 64cc499d6e5ec602309501873449c938af61170b2Stephen Hines// License. See LICENSE.TXT for details. 74cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 84cc499d6e5ec602309501873449c938af61170b2Stephen Hines//===----------------------------------------------------------------------===// 94cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 104cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Bitcode writer implementation. 114cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 124cc499d6e5ec602309501873449c938af61170b2Stephen Hines//===----------------------------------------------------------------------===// 134cc499d6e5ec602309501873449c938af61170b2Stephen Hines 144cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "ReaderWriter_2_9.h" 154cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Bitcode/BitstreamWriter.h" 164cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Bitcode/LLVMBitCodes.h" 174cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "ValueEnumerator.h" 184cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Constants.h" 194cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/DerivedTypes.h" 204cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/InlineAsm.h" 214cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Instructions.h" 224cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Module.h" 234cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Operator.h" 244cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/ValueSymbolTable.h" 254cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/ADT/Triple.h" 264cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/ErrorHandling.h" 274cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/MathExtras.h" 284cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/raw_ostream.h" 294cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/Program.h" 304cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include <cctype> 314cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include <map> 324cc499d6e5ec602309501873449c938af61170b2Stephen Hinesusing namespace llvm; 334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 344cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// These are manifest constants used by the bitcode writer. They do not need to 354cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// be kept in sync with the reader, but need to be consistent within this file. 364cc499d6e5ec602309501873449c938af61170b2Stephen Hinesenum { 374cc499d6e5ec602309501873449c938af61170b2Stephen Hines CurVersion = 0, 384cc499d6e5ec602309501873449c938af61170b2Stephen Hines 394cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VALUE_SYMTAB_BLOCK abbrev id's. 404cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_8_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 414cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_7_ABBREV, 424cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_6_ABBREV, 434cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_BBENTRY_6_ABBREV, 444cc499d6e5ec602309501873449c938af61170b2Stephen Hines 454cc499d6e5ec602309501873449c938af61170b2Stephen Hines // CONSTANTS_BLOCK abbrev id's. 464cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_SETTYPE_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 474cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_INTEGER_ABBREV, 484cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_CE_CAST_Abbrev, 494cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_NULL_Abbrev, 504cc499d6e5ec602309501873449c938af61170b2Stephen Hines 514cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION_BLOCK abbrev id's. 524cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 534cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_BINOP_ABBREV, 544cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_BINOP_FLAGS_ABBREV, 554cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_CAST_ABBREV, 564cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_RET_VOID_ABBREV, 574cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_RET_VAL_ABBREV, 584cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_UNREACHABLE_ABBREV 594cc499d6e5ec602309501873449c938af61170b2Stephen Hines}; 604cc499d6e5ec602309501873449c938af61170b2Stephen Hines 614cc499d6e5ec602309501873449c938af61170b2Stephen Hines 624cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned GetEncodedCastOpcode(unsigned Opcode) { 634cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (Opcode) { 644cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown cast instruction!"); 654cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Trunc : return bitc::CAST_TRUNC; 664cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ZExt : return bitc::CAST_ZEXT; 674cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SExt : return bitc::CAST_SEXT; 684cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPToUI : return bitc::CAST_FPTOUI; 694cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPToSI : return bitc::CAST_FPTOSI; 704cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::UIToFP : return bitc::CAST_UITOFP; 714cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SIToFP : return bitc::CAST_SITOFP; 724cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPTrunc : return bitc::CAST_FPTRUNC; 734cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPExt : return bitc::CAST_FPEXT; 744cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::PtrToInt: return bitc::CAST_PTRTOINT; 754cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::IntToPtr: return bitc::CAST_INTTOPTR; 764cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::BitCast : return bitc::CAST_BITCAST; 774cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 784cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 794cc499d6e5ec602309501873449c938af61170b2Stephen Hines 804cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned GetEncodedBinaryOpcode(unsigned Opcode) { 814cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (Opcode) { 824cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown binary instruction!"); 834cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Add: 844cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FAdd: return bitc::BINOP_ADD; 854cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Sub: 864cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FSub: return bitc::BINOP_SUB; 874cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Mul: 884cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FMul: return bitc::BINOP_MUL; 894cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::UDiv: return bitc::BINOP_UDIV; 904cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FDiv: 914cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SDiv: return bitc::BINOP_SDIV; 924cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::URem: return bitc::BINOP_UREM; 934cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FRem: 944cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SRem: return bitc::BINOP_SREM; 954cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Shl: return bitc::BINOP_SHL; 964cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::LShr: return bitc::BINOP_LSHR; 974cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::AShr: return bitc::BINOP_ASHR; 984cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::And: return bitc::BINOP_AND; 994cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Or: return bitc::BINOP_OR; 1004cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Xor: return bitc::BINOP_XOR; 1014cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1024cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1034cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1044cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteStringRecord(unsigned Code, StringRef Str, 1054cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse, BitstreamWriter &Stream) { 1064cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 1074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1084cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Code: [strchar x N] 1094cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 1104cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AbbrevToUse && !BitCodeAbbrevOp::isChar6(Str[i])) 1114cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = 0; 1124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Str[i]); 1134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1144cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1154cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 1164cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Vals, AbbrevToUse); 1174cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1194cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit information about parameter attributes. 1204cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteAttributeTable(const ValueEnumerator &VE, 1214cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 1224cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::vector<AttrListPtr> &Attrs = VE.getAttributes(); 1234cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Attrs.empty()) return; 1244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::PARAMATTR_BLOCK_ID, 3); 1264cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1274cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 1284cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Attrs.size(); i != e; ++i) { 1294cc499d6e5ec602309501873449c938af61170b2Stephen Hines const AttrListPtr &A = Attrs[i]; 1304cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = A.getNumSlots(); i != e; ++i) { 1314cc499d6e5ec602309501873449c938af61170b2Stephen Hines const AttributeWithIndex &PAWI = A.getSlot(i); 1324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(PAWI.Index); 1334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1344cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: remove in LLVM 3.0 1354cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Store the alignment in the bitcode as a 16-bit raw value instead of a 1364cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 5-bit log2 encoded value. Shift the bits above the alignment up by 1374cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 11 bits. 1384cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t FauxAttr = PAWI.Attrs & 0xffff; 1394cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (PAWI.Attrs & Attribute::Alignment) 1404cc499d6e5ec602309501873449c938af61170b2Stephen Hines FauxAttr |= (1ull<<16)<<(((PAWI.Attrs & Attribute::Alignment)-1) >> 16); 1414cc499d6e5ec602309501873449c938af61170b2Stephen Hines FauxAttr |= (PAWI.Attrs & (0x3FFull << 21)) << 11; 1424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(FauxAttr); 1444cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::PARAMATTR_CODE_ENTRY, Record); 1474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 1484cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1494cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 1514cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1524cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1534cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteTypeSymbolTable(const ValueEnumerator &VE, 1544cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 1554cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::TypeList &TypeList = VE.getTypes(); 1564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::TYPE_SYMTAB_BLOCK_ID_OLD, 3); 1574cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1584cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 7-bit fixed width VST_CODE_ENTRY strings. 1594cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 1604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 1614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 1634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 1654cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned V7Abbrev = Stream.EmitAbbrev(Abbv); 1664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1674cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> NameVals; 1684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1694cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { 1704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *T = TypeList[i]; 1714cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1724cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (T->getTypeID()) { 1734cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::StructTyID: { 1744cc499d6e5ec602309501873449c938af61170b2Stephen Hines StructType *ST = cast<StructType>(T); 1754cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (ST->isAnonymous()) { 1764cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Skip anonymous struct definitions in type symbol table 1774cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME(srhines) 1784cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 1794cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1804cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // TST_ENTRY: [typeid, namechar x N] 1824cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(i); 1834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1844cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &Str = ST->getName(); 1854cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 1864cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 1874cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)Str[i]); 1884cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Str[i] & 128) 1894cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 1904cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1914cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1924cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 1934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::VST_CODE_ENTRY, NameVals, is7Bit ? V7Abbrev : 0); 1944cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 1954cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1964cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 1974cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1984cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: break; 1994cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2004cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2024cc499d6e5ec602309501873449c938af61170b2Stephen Hines#if 0 2034cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end(); 2044cc499d6e5ec602309501873449c938af61170b2Stephen Hines TI != TE; ++TI) { 2054cc499d6e5ec602309501873449c938af61170b2Stephen Hines // TST_ENTRY: [typeid, namechar x N] 2064cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(VE.getTypeID(TI->second)); 2074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2084cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &Str = TI->first; 2094cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 2104cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 2114cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)Str[i]); 2124cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Str[i] & 128) 2134cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 2144cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2154cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2164cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 2174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::VST_CODE_ENTRY, NameVals, is7Bit ? V7Abbrev : 0); 2184cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 2194cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2204cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 2214cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 2234cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 2244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2254cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteTypeTable - Write out the type table for a module. 2264cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteTypeTable(const ValueEnumerator &VE, BitstreamWriter &Stream) { 2274cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::TypeList &TypeList = VE.getTypes(); 2284cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::TYPE_BLOCK_ID_OLD, 4 /*count from # abbrevs */); 2304cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> TypeVals; 2314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2324cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_POINTER. 2334cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 2344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_POINTER)); 2354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); // Addrspace = 0 2384cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned PtrAbbrev = Stream.EmitAbbrev(Abbv); 2394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2404cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_FUNCTION. 2414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_FUNCTION)); 2434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isvararg 2444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); // FIXME: DEAD value, remove in LLVM 3.0 2454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2484cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned FunctionAbbrev = Stream.EmitAbbrev(Abbv); 2494cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2504cc499d6e5ec602309501873449c938af61170b2Stephen Hines#if 0 2514cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT_ANON. 2524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_ANON)); 2544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2584cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructAnonAbbrev = Stream.EmitAbbrev(Abbv); 2594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT_NAME. 2614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_NAME)); 2634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 2654cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructNameAbbrev = Stream.EmitAbbrev(Abbv); 2664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2674cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT_NAMED. 2684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_NAMED)); 2704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2744cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructNamedAbbrev = Stream.EmitAbbrev(Abbv); 2754cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 2764cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2774cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT. 2784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_OLD)); 2804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2844cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructAbbrev = Stream.EmitAbbrev(Abbv); 2854cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2864cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_ARRAY. 2874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_ARRAY)); 2894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // size 2904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2914cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2924cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned ArrayAbbrev = Stream.EmitAbbrev(Abbv); 2934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2944cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit an entry count so the reader can reserve space. 2954cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(TypeList.size()); 2964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::TYPE_CODE_NUMENTRY, TypeVals); 2974cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.clear(); 2984cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2994cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Loop over all of the types, emitting each in turn. 3004cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { 3014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *T = TypeList[i]; 3024cc499d6e5ec602309501873449c938af61170b2Stephen Hines int AbbrevToUse = 0; 3034cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = 0; 3044cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3054cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (T->getTypeID()) { 3064cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown type!"); 3074cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::VoidTyID: Code = bitc::TYPE_CODE_VOID; break; 3084cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FloatTyID: Code = bitc::TYPE_CODE_FLOAT; break; 3094cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::DoubleTyID: Code = bitc::TYPE_CODE_DOUBLE; break; 3104cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::X86_FP80TyID: Code = bitc::TYPE_CODE_X86_FP80; break; 3114cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FP128TyID: Code = bitc::TYPE_CODE_FP128; break; 3124cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::PPC_FP128TyID: Code = bitc::TYPE_CODE_PPC_FP128; break; 3134cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::LabelTyID: Code = bitc::TYPE_CODE_LABEL; break; 3144cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::MetadataTyID: Code = bitc::TYPE_CODE_METADATA; break; 3154cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::X86_MMXTyID: Code = bitc::TYPE_CODE_X86_MMX; break; 3164cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::IntegerTyID: 3174cc499d6e5ec602309501873449c938af61170b2Stephen Hines // INTEGER: [width] 3184cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_INTEGER; 3194cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(cast<IntegerType>(T)->getBitWidth()); 3204cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3214cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::PointerTyID: { 3224cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(T); 3234cc499d6e5ec602309501873449c938af61170b2Stephen Hines // POINTER: [pointee type, address space] 3244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_POINTER; 3254cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(PTy->getElementType())); 3264cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AddressSpace = PTy->getAddressSpace(); 3274cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(AddressSpace); 3284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AddressSpace == 0) AbbrevToUse = PtrAbbrev; 3294cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3304cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3314cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FunctionTyID: { 3324cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FT = cast<FunctionType>(T); 3334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION: [isvararg, attrid, retty, paramty x N] 3344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_FUNCTION; 3354cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(FT->isVarArg()); 3364cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(0); // FIXME: DEAD: remove in llvm 3.0 3374cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(FT->getReturnType())); 3384cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) 3394cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(FT->getParamType(i))); 3404cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FunctionAbbrev; 3414cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3424cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3434cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::StructTyID: { 3444cc499d6e5ec602309501873449c938af61170b2Stephen Hines StructType *ST = cast<StructType>(T); 3454cc499d6e5ec602309501873449c938af61170b2Stephen Hines // STRUCT: [ispacked, eltty x N] 3464cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(ST->isPacked()); 3474cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Output all of the element types. 3484cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (StructType::element_iterator I = ST->element_begin(), 3494cc499d6e5ec602309501873449c938af61170b2Stephen Hines E = ST->element_end(); I != E; ++I) 3504cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(*I)); 3514cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = StructAbbrev; 3524cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3534cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3544cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::ArrayTyID: { 3554cc499d6e5ec602309501873449c938af61170b2Stephen Hines ArrayType *AT = cast<ArrayType>(T); 3564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // ARRAY: [numelts, eltty] 3574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_ARRAY; 3584cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(AT->getNumElements()); 3594cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(AT->getElementType())); 3604cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = ArrayAbbrev; 3614cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3624cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3634cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::VectorTyID: { 3644cc499d6e5ec602309501873449c938af61170b2Stephen Hines VectorType *VT = cast<VectorType>(T); 3654cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VECTOR [numelts, eltty] 3664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_VECTOR; 3674cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VT->getNumElements()); 3684cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(VT->getElementType())); 3694cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3704cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3724cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3734cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 3744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, TypeVals, AbbrevToUse); 3754cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.clear(); 3764cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3774cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 3794cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3804cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteTypeSymbolTable(VE, Stream); 3814cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 3824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3834cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned getEncodedLinkage(const GlobalValue *GV) { 3844cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (GV->getLinkage()) { 3854cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Invalid linkage!"); 3864cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ExternalLinkage: return 0; 3874cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::WeakAnyLinkage: return 1; 3884cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::AppendingLinkage: return 2; 3894cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::InternalLinkage: return 3; 3904cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkOnceAnyLinkage: return 4; 3914cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DLLImportLinkage: return 5; 3924cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DLLExportLinkage: return 6; 3934cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ExternalWeakLinkage: return 7; 3944cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::CommonLinkage: return 8; 3954cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::PrivateLinkage: return 9; 3964cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::WeakODRLinkage: return 10; 3974cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkOnceODRLinkage: return 11; 3984cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::AvailableExternallyLinkage: return 12; 3994cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkerPrivateLinkage: return 13; 4004cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkerPrivateWeakLinkage: return 14; 4014cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkerPrivateWeakDefAutoLinkage: return 15; 4024cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4034cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 4044cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4054cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned getEncodedVisibility(const GlobalValue *GV) { 4064cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (GV->getVisibility()) { 4074cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Invalid visibility!"); 4084cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DefaultVisibility: return 0; 4094cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::HiddenVisibility: return 1; 4104cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ProtectedVisibility: return 2; 4114cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4124cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 4134cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4144cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit top-level description of module, including target triple, inline asm, 4154cc499d6e5ec602309501873449c938af61170b2Stephen Hines// descriptors for global variables, and function prototype info. 4164cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleInfo(const Module *M, const ValueEnumerator &VE, 4174cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 4184cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the list of dependent libraries for the Module. 4194cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::lib_iterator I = M->lib_begin(), E = M->lib_end(); I != E; ++I) 4204cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_DEPLIB, *I, 0/*TODO*/, Stream); 4214cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4224cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit various pieces of data attached to a module. 4234cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getTargetTriple().empty()) 4244cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_TRIPLE, M->getTargetTriple(), 4254cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4264cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getDataLayout().empty()) 4274cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_DATALAYOUT, M->getDataLayout(), 4284cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4294cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getModuleInlineAsm().empty()) 4304cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_ASM, M->getModuleInlineAsm(), 4314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information about sections and GC, computing how many there are. Also 4344cc499d6e5ec602309501873449c938af61170b2Stephen Hines // compute the maximum alignment value. 4354cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::map<std::string, unsigned> SectionMap; 4364cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::map<std::string, unsigned> GCMap; 4374cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxAlignment = 0; 4384cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxGlobalType = 0; 4394cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end(); 4404cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV != E; ++GV) { 4414cc499d6e5ec602309501873449c938af61170b2Stephen Hines MaxAlignment = std::max(MaxAlignment, GV->getAlignment()); 4424cc499d6e5ec602309501873449c938af61170b2Stephen Hines MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV->getType())); 4434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4444cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!GV->hasSection()) continue; 4454cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Give section names unique ID's. 4464cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned &Entry = SectionMap[GV->getSection()]; 4474cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Entry != 0) continue; 4484cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, GV->getSection(), 4494cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = SectionMap.size(); 4514cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4524cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) { 4534cc499d6e5ec602309501873449c938af61170b2Stephen Hines MaxAlignment = std::max(MaxAlignment, F->getAlignment()); 4544cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (F->hasSection()) { 4554cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Give section names unique ID's. 4564cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned &Entry = SectionMap[F->getSection()]; 4574cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!Entry) { 4584cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F->getSection(), 4594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = SectionMap.size(); 4614cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4624cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4634cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (F->hasGC()) { 4644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Same for GC names. 4654cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned &Entry = GCMap[F->getGC()]; 4664cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!Entry) { 4674cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_GCNAME, F->getGC(), 4684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = GCMap.size(); 4704cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4724cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4744cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit abbrev for globals, now that we know # sections and max alignment. 4754cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned SimpleGVarAbbrev = 0; 4764cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->global_empty()) { 4774cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add an abbrev for common globals with no visibility or thread localness. 4784cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 4794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::MODULE_CODE_GLOBALVAR)); 4804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(MaxGlobalType+1))); 4824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constant. 4834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer. 4844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // Linkage. 4854cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (MaxAlignment == 0) // Alignment. 4864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); 4874cc499d6e5ec602309501873449c938af61170b2Stephen Hines else { 4884cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxEncAlignment = Log2_32(MaxAlignment)+1; 4894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(MaxEncAlignment+1))); 4914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (SectionMap.empty()) // Section. 4934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); 4944cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 4954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(SectionMap.size()+1))); 4974cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Don't bother emitting vis + thread local. 4984cc499d6e5ec602309501873449c938af61170b2Stephen Hines SimpleGVarAbbrev = Stream.EmitAbbrev(Abbv); 4994cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5004cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5014cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the global variable information. 5024cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 5034cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end(); 5044cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV != E; ++GV) { 5054cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5064cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5074cc499d6e5ec602309501873449c938af61170b2Stephen Hines // GLOBALVAR: [type, isconst, initid, 5084cc499d6e5ec602309501873449c938af61170b2Stephen Hines // linkage, alignment, section, visibility, threadlocal, 5094cc499d6e5ec602309501873449c938af61170b2Stephen Hines // unnamed_addr] 5104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(GV->getType())); 5114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->isConstant()); 5124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->isDeclaration() ? 0 : 5134cc499d6e5ec602309501873449c938af61170b2Stephen Hines (VE.getValueID(GV->getInitializer()) + 1)); 5144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(GV)); 5154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(GV->getAlignment())+1); 5164cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->hasSection() ? SectionMap[GV->getSection()] : 0); 5174cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (GV->isThreadLocal() || 5184cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV->getVisibility() != GlobalValue::DefaultVisibility || 5194cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV->hasUnnamedAddr()) { 5204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(GV)); 5214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->isThreadLocal()); 5224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->hasUnnamedAddr()); 5234cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 5244cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = SimpleGVarAbbrev; 5254cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5264cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_GLOBALVAR, Vals, AbbrevToUse); 5284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5294cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5304cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5314cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the function proto information. 5324cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) { 5334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION: [type, callingconv, isproto, paramattr, 5344cc499d6e5ec602309501873449c938af61170b2Stephen Hines // linkage, alignment, section, visibility, gc, unnamed_addr] 5354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(F->getType())); 5364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->getCallingConv()); 5374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->isDeclaration()); 5384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(F)); 5394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(F->getAttributes())); 5404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(F->getAlignment())+1); 5414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->hasSection() ? SectionMap[F->getSection()] : 0); 5424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(F)); 5434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->hasGC() ? GCMap[F->getGC()] : 0); 5444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->hasUnnamedAddr()); 5454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5464cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_FUNCTION, Vals, AbbrevToUse); 5484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5494cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5504cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5514cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the alias information. 5524cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_alias_iterator AI = M->alias_begin(), E = M->alias_end(); 5534cc499d6e5ec602309501873449c938af61170b2Stephen Hines AI != E; ++AI) { 5544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(AI->getType())); 5554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(AI->getAliasee())); 5564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(AI)); 5574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(AI)); 5584cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_ALIAS, Vals, AbbrevToUse); 5604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5614cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5624cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5644cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic uint64_t GetOptimizationFlags(const Value *V) { 5654cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = 0; 5664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5674cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const OverflowingBinaryOperator *OBO = 5684cc499d6e5ec602309501873449c938af61170b2Stephen Hines dyn_cast<OverflowingBinaryOperator>(V)) { 5694cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (OBO->hasNoSignedWrap()) 5704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::OBO_NO_SIGNED_WRAP; 5714cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (OBO->hasNoUnsignedWrap()) 5724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::OBO_NO_UNSIGNED_WRAP; 5734cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const PossiblyExactOperator *PEO = 5744cc499d6e5ec602309501873449c938af61170b2Stephen Hines dyn_cast<PossiblyExactOperator>(V)) { 5754cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (PEO->isExact()) 5764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::PEO_EXACT; 5774cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5784cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5794cc499d6e5ec602309501873449c938af61170b2Stephen Hines return Flags; 5804cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5814cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5824cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteMDNode(const MDNode *N, 5834cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 5844cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream, 5854cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> &Record) { 5864cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 5874cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (N->getOperand(i)) { 5884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(N->getOperand(i)->getType())); 5894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(N->getOperand(i))); 5904cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 5914cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(Type::getVoidTy(N->getContext()))); 5924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(0); 5934cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5944cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5954cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MDCode = N->isFunctionLocal() ? bitc::METADATA_FN_NODE : 5964cc499d6e5ec602309501873449c938af61170b2Stephen Hines bitc::METADATA_NODE; 5974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(MDCode, Record, 0); 5984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 5994cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 6004cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6014cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleMetadata(const Module *M, 6024cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 6034cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 6044cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::ValueList &Vals = VE.getMDValues(); 6054cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool StartedMetadataBlock = false; 6064cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MDSAbbrev = 0; 6074cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 6084cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) { 6094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6104cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const MDNode *N = dyn_cast<MDNode>(Vals[i].first)) { 6114cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!N->isFunctionLocal() || !N->getFunction()) { 6124cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6144cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6164cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMDNode(N, VE, Stream, Record); 6174cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6184cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const MDString *MDS = dyn_cast<MDString>(Vals[i].first)) { 6194cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6214cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6224cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for METADATA_STRING. 6234cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 6244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_STRING)); 6254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 6264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 6274cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDSAbbrev = Stream.EmitAbbrev(Abbv); 6284cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6294cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6304cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6314cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Code: [strchar x N] 6324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.append(MDS->begin(), MDS->end()); 6334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6344cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 6354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev); 6364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6374cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6384cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6404cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write named metadata. 6414cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_named_metadata_iterator I = M->named_metadata_begin(), 6424cc499d6e5ec602309501873449c938af61170b2Stephen Hines E = M->named_metadata_end(); I != E; ++I) { 6434cc499d6e5ec602309501873449c938af61170b2Stephen Hines const NamedMDNode *NMD = I; 6444cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6464cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6474cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write name. 6504cc499d6e5ec602309501873449c938af61170b2Stephen Hines StringRef Str = NMD->getName(); 6514cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) 6524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(Str[i]); 6534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_NAME, Record, 0/*TODO*/); 6544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write named metadata operands. 6574cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) 6584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(NMD->getOperand(i))); 6594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_NAMED_NODE, Record, 0); 6604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6614cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6624cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6634cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (StartedMetadataBlock) 6644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 6654cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 6664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6674cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteFunctionLocalMetadata(const Function &F, 6684cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 6694cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 6704cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool StartedMetadataBlock = false; 6714cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 6724cc499d6e5ec602309501873449c938af61170b2Stephen Hines const SmallVector<const MDNode *, 8> &Vals = VE.getFunctionLocalMDValues(); 6734cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) 6744cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const MDNode *N = Vals[i]) 6754cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (N->isFunctionLocal() && N->getFunction() == &F) { 6764cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6784cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6794cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6804cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMDNode(N, VE, Stream, Record); 6814cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6834cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (StartedMetadataBlock) 6844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 6854cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 6864cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6874cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteMetadataAttachment(const Function &F, 6884cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 6894cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 6904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_ATTACHMENT_ID, 3); 6914cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6924cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 6934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6944cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write metadata attachments 6954cc499d6e5ec602309501873449c938af61170b2Stephen Hines // METADATA_ATTACHMENT - [m x [value, [n x [id, mdnode]]] 6964cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<std::pair<unsigned, MDNode*>, 4> MDs; 6974cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6984cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) 6994cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 7004cc499d6e5ec602309501873449c938af61170b2Stephen Hines I != E; ++I) { 7014cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDs.clear(); 7024cc499d6e5ec602309501873449c938af61170b2Stephen Hines I->getAllMetadataOtherThanDebugLoc(MDs); 7034cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7044cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If no metadata, ignore instruction. 7054cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (MDs.empty()) continue; 7064cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7074cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getInstructionID(I)); 7084cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7094cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = MDs.size(); i != e; ++i) { 7104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(MDs[i].first); 7114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(MDs[i].second)); 7124cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_ATTACHMENT, Record, 0); 7144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7184cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7194cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7204cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleMetadataStore(const Module *M, BitstreamWriter &Stream) { 7214cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 7224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7234cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write metadata kinds 7244cc499d6e5ec602309501873449c938af61170b2Stephen Hines // METADATA_KIND - [n x [id, name]] 7254cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<StringRef, 4> Names; 7264cc499d6e5ec602309501873449c938af61170b2Stephen Hines M->getMDKindNames(Names); 7274cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Names.empty()) return; 7294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 7314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7324cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned MDKindID = 0, e = Names.size(); MDKindID != e; ++MDKindID) { 7334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(MDKindID); 7344cc499d6e5ec602309501873449c938af61170b2Stephen Hines StringRef KName = Names[MDKindID]; 7354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.append(KName.begin(), KName.end()); 7364cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_KIND, Record, 0); 7384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7394cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7404cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7424cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7444cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteConstants(unsigned FirstVal, unsigned LastVal, 7454cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 7464cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream, bool isGlobal) { 7474cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FirstVal == LastVal) return; 7484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::CONSTANTS_BLOCK_ID, 4); 7504cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7514cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AggregateAbbrev = 0; 7524cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned String8Abbrev = 0; 7534cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CString7Abbrev = 0; 7544cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CString6Abbrev = 0; 7554cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is a constant pool for the module, emit module-specific abbrevs. 7564cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isGlobal) { 7574cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_AGGREGATE. 7584cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 7594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_AGGREGATE)); 7604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, Log2_32_Ceil(LastVal+1))); 7624cc499d6e5ec602309501873449c938af61170b2Stephen Hines AggregateAbbrev = Stream.EmitAbbrev(Abbv); 7634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_STRING. 7654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_STRING)); 7674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 7694cc499d6e5ec602309501873449c938af61170b2Stephen Hines String8Abbrev = Stream.EmitAbbrev(Abbv); 7704cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_CSTRING. 7714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING)); 7734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 7754cc499d6e5ec602309501873449c938af61170b2Stephen Hines CString7Abbrev = Stream.EmitAbbrev(Abbv); 7764cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_CSTRING. 7774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING)); 7794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 7814cc499d6e5ec602309501873449c938af61170b2Stephen Hines CString6Abbrev = Stream.EmitAbbrev(Abbv); 7824cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7844cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 7854cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7864cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::ValueList &Vals = VE.getValues(); 7874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *LastTy = 0; 7884cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FirstVal; i != LastVal; ++i) { 7894cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Value *V = Vals[i].first; 7904cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If we need to switch types, do so now. 7914cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (V->getType() != LastTy) { 7924cc499d6e5ec602309501873449c938af61170b2Stephen Hines LastTy = V->getType(); 7934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(LastTy)); 7944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::CST_CODE_SETTYPE, Record, 7954cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_SETTYPE_ABBREV); 7964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7974cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7984cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7994cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) { 8004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(unsigned(IA->hasSideEffects()) | 8014cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned(IA->isAlignStack()) << 1); 8024cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8034cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add the asm string. 8044cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &AsmStr = IA->getAsmString(); 8054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(AsmStr.size()); 8064cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = AsmStr.size(); i != e; ++i) 8074cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(AsmStr[i]); 8084cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8094cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add the constraint string. 8104cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &ConstraintStr = IA->getConstraintString(); 8114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(ConstraintStr.size()); 8124cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = ConstraintStr.size(); i != e; ++i) 8134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(ConstraintStr[i]); 8144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::CST_CODE_INLINEASM, Record); 8154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 8164cc499d6e5ec602309501873449c938af61170b2Stephen Hines continue; 8174cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8184cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Constant *C = cast<Constant>(V); 8194cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = -1U; 8204cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 8214cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (C->isNullValue()) { 8224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_NULL; 8234cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (isa<UndefValue>(C)) { 8244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_UNDEF; 8254cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantInt *IV = dyn_cast<ConstantInt>(C)) { 8264cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (IV->getBitWidth() <= 64) { 8274cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t V = IV->getSExtValue(); 8284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if ((int64_t)V >= 0) 8294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V << 1); 8304cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 8314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((-V << 1) | 1); 8324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_INTEGER; 8334cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CONSTANTS_INTEGER_ABBREV; 8344cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { // Wide integers, > 64 bits in size. 8354cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We have an arbitrary precision integer value to write whose 8364cc499d6e5ec602309501873449c938af61170b2Stephen Hines // bit width is > 64. However, in canonical unsigned integer 8374cc499d6e5ec602309501873449c938af61170b2Stephen Hines // format it is likely that the high bits are going to be zero. 8384cc499d6e5ec602309501873449c938af61170b2Stephen Hines // So, we only write the number of active words. 8394cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NWords = IV->getValue().getActiveWords(); 8404cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *RawWords = IV->getValue().getRawData(); 8414cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0; i != NWords; ++i) { 8424cc499d6e5ec602309501873449c938af61170b2Stephen Hines int64_t V = RawWords[i]; 8434cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (V >= 0) 8444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V << 1); 8454cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 8464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((-V << 1) | 1); 8474cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_WIDE_INTEGER; 8494cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8504cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) { 8514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_FLOAT; 8524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *Ty = CFP->getType(); 8534cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Ty->isFloatTy() || Ty->isDoubleTy()) { 8544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(CFP->getValueAPF().bitcastToAPInt().getZExtValue()); 8554cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (Ty->isX86_FP80Ty()) { 8564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // api needed to prevent premature destruction 8574cc499d6e5ec602309501873449c938af61170b2Stephen Hines // bits are not in the same order as a normal i80 APInt, compensate. 8584cc499d6e5ec602309501873449c938af61170b2Stephen Hines APInt api = CFP->getValueAPF().bitcastToAPInt(); 8594cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *p = api.getRawData(); 8604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((p[1] << 48) | (p[0] >> 16)); 8614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[0] & 0xffffLL); 8624cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (Ty->isFP128Ty() || Ty->isPPC_FP128Ty()) { 8634cc499d6e5ec602309501873449c938af61170b2Stephen Hines APInt api = CFP->getValueAPF().bitcastToAPInt(); 8644cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *p = api.getRawData(); 8654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[0]); 8664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[1]); 8674cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 8684cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert (0 && "Unknown FP type!"); 8694cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8704cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (isa<ConstantArray>(C) && cast<ConstantArray>(C)->isString()) { 8714cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ConstantArray *CA = cast<ConstantArray>(C); 8724cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit constant strings specially. 8734cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NumOps = CA->getNumOperands(); 8744cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is a null-terminated string, use the denser CSTRING encoding. 8754cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (CA->getOperand(NumOps-1)->isNullValue()) { 8764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CSTRING; 8774cc499d6e5ec602309501873449c938af61170b2Stephen Hines --NumOps; // Don't encode the null, which isn't allowed by char6. 8784cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 8794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_STRING; 8804cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = String8Abbrev; 8814cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8824cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isCStr7 = Code == bitc::CST_CODE_CSTRING; 8834cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isCStrChar6 = Code == bitc::CST_CODE_CSTRING; 8844cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0; i != NumOps; ++i) { 8854cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned char V = cast<ConstantInt>(CA->getOperand(i))->getZExtValue(); 8864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V); 8874cc499d6e5ec602309501873449c938af61170b2Stephen Hines isCStr7 &= (V & 128) == 0; 8884cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isCStrChar6) 8894cc499d6e5ec602309501873449c938af61170b2Stephen Hines isCStrChar6 = BitCodeAbbrevOp::isChar6(V); 8904cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8914cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isCStrChar6) 8934cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CString6Abbrev; 8944cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (isCStr7) 8954cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CString7Abbrev; 8964cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (isa<ConstantArray>(C) || isa<ConstantStruct>(V) || 8974cc499d6e5ec602309501873449c938af61170b2Stephen Hines isa<ConstantVector>(V)) { 8984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_AGGREGATE; 8994cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) 9004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(i))); 9014cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = AggregateAbbrev; 9024cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) { 9034cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (CE->getOpcode()) { 9044cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: 9054cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Instruction::isCast(CE->getOpcode())) { 9064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_CAST; 9074cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(GetEncodedCastOpcode(CE->getOpcode())); 9084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9104cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CONSTANTS_CE_CAST_Abbrev; 9114cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9124cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert(CE->getNumOperands() == 2 && "Unknown constant expr!"); 9134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_BINOP; 9144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(GetEncodedBinaryOpcode(CE->getOpcode())); 9154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9164cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9174cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = GetOptimizationFlags(CE); 9184cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Flags != 0) 9194cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(Flags); 9204cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9214cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9224cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::GetElementPtr: 9234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_GEP; 9244cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (cast<GEPOperator>(C)->isInBounds()) 9254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_INBOUNDS_GEP; 9264cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) { 9274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(i)->getType())); 9284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(i))); 9294cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9304cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9314cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Select: 9324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SELECT; 9334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9364cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9374cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractElement: 9384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_EXTRACTELT; 9394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9424cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9434cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertElement: 9444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_INSERTELT; 9454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9484cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9494cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ShuffleVector: 9504cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the return type and argument types are the same, this is a 9514cc499d6e5ec602309501873449c938af61170b2Stephen Hines // standard shufflevector instruction. If the types are different, 9524cc499d6e5ec602309501873449c938af61170b2Stephen Hines // then the shuffle is widening or truncating the input vectors, and 9534cc499d6e5ec602309501873449c938af61170b2Stephen Hines // the argument type must also be encoded. 9544cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (C->getType() == C->getOperand(0)->getType()) { 9554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SHUFFLEVEC; 9564cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SHUFVEC_EX; 9584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9594cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9634cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9644cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ICmp: 9654cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FCmp: 9664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_CMP; 9674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(CE->getPredicate()); 9714cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9724cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9734cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C)) { 9744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_BLOCKADDRESS; 9754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(BA->getFunction()->getType())); 9764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(BA->getFunction())); 9774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getGlobalBasicBlockID(BA->getBasicBlock())); 9784cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9794cc499d6e5ec602309501873449c938af61170b2Stephen Hines#ifndef NDEBUG 9804cc499d6e5ec602309501873449c938af61170b2Stephen Hines C->dump(); 9814cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 9824cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unknown constant!"); 9834cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Record, AbbrevToUse); 9854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 9864cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9874cc499d6e5ec602309501873449c938af61170b2Stephen Hines 9884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 9894cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 9904cc499d6e5ec602309501873449c938af61170b2Stephen Hines 9914cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleConstants(const ValueEnumerator &VE, 9924cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 9934cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::ValueList &Vals = VE.getValues(); 9944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 9954cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Find the first constant to emit, which is the first non-globalvalue value. 9964cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We know globalvalues have been emitted by WriteModuleInfo. 9974cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) { 9984cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!isa<GlobalValue>(Vals[i].first)) { 9994cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteConstants(i, Vals.size(), VE, Stream, true); 10004cc499d6e5ec602309501873449c938af61170b2Stephen Hines return; 10014cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10024cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10034cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10044cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10054cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// PushValueAndType - The file has to encode both the value and type id for 10064cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// many values, because we need to know what type to create for forward 10074cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// references. However, most operands are not forward references, so this type 10084cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// field is not needed. 10094cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// 10104cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// This function adds V's value ID to Vals. If the value ID is higher than the 10114cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// instruction ID, then it is a forward reference, and it also includes the 10124cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// type ID. 10134cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic bool PushValueAndType(const Value *V, unsigned InstID, 10144cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> &Vals, 10154cc499d6e5ec602309501873449c938af61170b2Stephen Hines ValueEnumerator &VE) { 10164cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned ValID = VE.getValueID(V); 10174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(ValID); 10184cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (ValID >= InstID) { 10194cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(V->getType())); 10204cc499d6e5ec602309501873449c938af61170b2Stephen Hines return true; 10214cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10224cc499d6e5ec602309501873449c938af61170b2Stephen Hines return false; 10234cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10254cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteInstruction - Emit an instruction to the specified stream. 10264cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteInstruction(const Instruction &I, unsigned InstID, 10274cc499d6e5ec602309501873449c938af61170b2Stephen Hines ValueEnumerator &VE, BitstreamWriter &Stream, 10284cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> &Vals) { 10294cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = 0; 10304cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 10314cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.setInstructionID(&I); 10324cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (I.getOpcode()) { 10334cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: 10344cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Instruction::isCast(I.getOpcode())) { 10354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CAST; 10364cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 10374cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_CAST_ABBREV; 10384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); 10394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GetEncodedCastOpcode(I.getOpcode())); 10404cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 10414cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert(isa<BinaryOperator>(I) && "Unknown instruction!"); 10424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_BINOP; 10434cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 10444cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_BINOP_ABBREV; 10454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 10464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode())); 10474cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = GetOptimizationFlags(&I); 10484cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Flags != 0) { 10494cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AbbrevToUse == FUNCTION_INST_BINOP_ABBREV) 10504cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_BINOP_FLAGS_ABBREV; 10514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Flags); 10524cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10534cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10544cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10564cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::GetElementPtr: 10574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_GEP; 10584cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (cast<GEPOperator>(&I)->isInBounds()) 10594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INBOUNDS_GEP; 10604cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 10614cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); 10624cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10634cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractValue: { 10644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_EXTRACTVAL; 10654cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 10664cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ExtractValueInst *EVI = cast<ExtractValueInst>(&I); 10674cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i) 10684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(*i); 10694cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10704cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10714cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertValue: { 10724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INSERTVAL; 10734cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 10744cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); 10754cc499d6e5ec602309501873449c938af61170b2Stephen Hines const InsertValueInst *IVI = cast<InsertValueInst>(&I); 10764cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i) 10774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(*i); 10784cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10794cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10804cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Select: 10814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_VSELECT; 10824cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); 10834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 10844cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 10854cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10864cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractElement: 10874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_EXTRACTELT; 10884cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 10894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 10904cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10914cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertElement: 10924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INSERTELT; 10934cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 10944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 10954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 10964cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10974cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ShuffleVector: 10984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_SHUFFLEVEC; 10994cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11024cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ICmp: 11044cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FCmp: 11054cc499d6e5ec602309501873449c938af61170b2Stephen Hines // compare returning Int1Ty or vector of Int1Ty 11064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CMP2; 11074cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<CmpInst>(I).getPredicate()); 11104cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11114cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11124cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Ret: 11134cc499d6e5ec602309501873449c938af61170b2Stephen Hines { 11144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_RET; 11154cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NumOperands = I.getNumOperands(); 11164cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (NumOperands == 0) 11174cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_RET_VOID_ABBREV; 11184cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (NumOperands == 1) { 11194cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 11204cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_RET_VAL_ABBREV; 11214cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 11224cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = NumOperands; i != e; ++i) 11234cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); 11244cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11254cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11264cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11274cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Br: 11284cc499d6e5ec602309501873449c938af61170b2Stephen Hines { 11294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_BR; 11304cc499d6e5ec602309501873449c938af61170b2Stephen Hines BranchInst &II = cast<BranchInst>(I); 11314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getSuccessor(0))); 11324cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (II.isConditional()) { 11334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getSuccessor(1))); 11344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getCondition())); 11354cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11364cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11374cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11384cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Switch: 11394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_SWITCH; 11404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 11414cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 11424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); 11434cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11444cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::IndirectBr: 11454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INDIRECTBR; 11464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 11474cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 11484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); 11494cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11504cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11514cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Invoke: { 11524cc499d6e5ec602309501873449c938af61170b2Stephen Hines const InvokeInst *II = cast<InvokeInst>(&I); 11534cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Value *Callee(II->getCalledValue()); 11544cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(Callee->getType()); 11554cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FTy = cast<FunctionType>(PTy->getElementType()); 11564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INVOKE; 11574cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(II->getAttributes())); 11594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(II->getCallingConv()); 11604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II->getNormalDest())); 11614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II->getUnwindDest())); 11624cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(Callee, InstID, Vals, VE); 11634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit value #'s for the fixed parameters. 11654cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) 11664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); // fixed param. 11674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11684cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit type/value pairs for varargs params. 11694cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FTy->isVarArg()) { 11704cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FTy->getNumParams(), e = I.getNumOperands()-3; 11714cc499d6e5ec602309501873449c938af61170b2Stephen Hines i != e; ++i) 11724cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); // vararg 11734cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11744cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11754cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11764cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Unwind: 11774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_UNWIND; 11784cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11794cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Unreachable: 11804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_UNREACHABLE; 11814cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_UNREACHABLE_ABBREV; 11824cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11844cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::PHI: { 11854cc499d6e5ec602309501873449c938af61170b2Stephen Hines const PHINode &PN = cast<PHINode>(I); 11864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_PHI; 11874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(PN.getType())); 11884cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = PN.getNumIncomingValues(); i != e; ++i) { 11894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(PN.getIncomingValue(i))); 11904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(PN.getIncomingBlock(i))); 11914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11924cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11934cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11954cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Alloca: 11964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_ALLOCA; 11974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); 11984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 11994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // size. 12004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<AllocaInst>(I).getAlignment())+1); 12014cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12024cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Load: 12044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_LOAD; 12054cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr 12064cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_LOAD_ABBREV; 12074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1); 12094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<LoadInst>(I).isVolatile()); 12104cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12114cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Store: 12124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_STORE; 12134cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr 12144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // val. 12154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1); 12164cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<StoreInst>(I).isVolatile()); 12174cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12184cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Call: { 12194cc499d6e5ec602309501873449c938af61170b2Stephen Hines const CallInst &CI = cast<CallInst>(I); 12204cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(CI.getCalledValue()->getType()); 12214cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FTy = cast<FunctionType>(PTy->getElementType()); 12224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CALL; 12244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(CI.getAttributes())); 12264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall())); 12274cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(CI.getCalledValue(), InstID, Vals, VE); // Callee 12284cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12294cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit value #'s for the fixed parameters. 12304cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) 12314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(CI.getArgOperand(i))); // fixed param. 12324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit type/value pairs for varargs params. 12344cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FTy->isVarArg()) { 12354cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FTy->getNumParams(), e = CI.getNumArgOperands(); 12364cc499d6e5ec602309501873449c938af61170b2Stephen Hines i != e; ++i) 12374cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(CI.getArgOperand(i), InstID, Vals, VE); // varargs 12384cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12394cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12404cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12414cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::VAArg: 12424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_VAARG; 12434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); // valistty 12444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // valist. 12454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); // restype. 12464cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12474cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Vals, AbbrevToUse); 12504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 12514cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 12524cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12534cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit names for globals/functions etc. 12544cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteValueSymbolTable(const ValueSymbolTable &VST, 12554cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 12564cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 12574cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (VST.empty()) return; 12584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 4); 12594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: Set up the abbrev, we know how many values there are! 12614cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: We know if the type names can use 7-bit ascii. 12624cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> NameVals; 12634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12644cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (ValueSymbolTable::const_iterator SI = VST.begin(), SE = VST.end(); 12654cc499d6e5ec602309501873449c938af61170b2Stephen Hines SI != SE; ++SI) { 12664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12674cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueName &Name = *SI; 12684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12694cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Figure out the encoding to use for the name. 12704cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 12714cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isChar6 = true; 12724cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const char *C = Name.getKeyData(), *E = C+Name.getKeyLength(); 12734cc499d6e5ec602309501873449c938af61170b2Stephen Hines C != E; ++C) { 12744cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 12754cc499d6e5ec602309501873449c938af61170b2Stephen Hines isChar6 = BitCodeAbbrevOp::isChar6(*C); 12764cc499d6e5ec602309501873449c938af61170b2Stephen Hines if ((unsigned char)*C & 128) { 12774cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 12784cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; // don't bother scanning the rest. 12794cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12804cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12814cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12824cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = VST_ENTRY_8_ABBREV; 12834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12844cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VST_ENTRY: [valueid, namechar x N] 12854cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VST_BBENTRY: [bbid, namechar x N] 12864cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code; 12874cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isa<BasicBlock>(SI->getValue())) { 12884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::VST_CODE_BBENTRY; 12894cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 12904cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_BBENTRY_6_ABBREV; 12914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 12924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::VST_CODE_ENTRY; 12934cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 12944cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_ENTRY_6_ABBREV; 12954cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (is7Bit) 12964cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_ENTRY_7_ABBREV; 12974cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12984cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12994cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(VE.getValueID(SI->getValue())); 13004cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const char *P = Name.getKeyData(), 13014cc499d6e5ec602309501873449c938af61170b2Stephen Hines *E = Name.getKeyData()+Name.getKeyLength(); P != E; ++P) 13024cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)*P); 13034cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13044cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 13054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, NameVals, AbbrevToUse); 13064cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 13074cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 13094cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 13104cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13114cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteFunction - Emit a function body to the module stream. 13124cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteFunction(const Function &F, ValueEnumerator &VE, 13134cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 13144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4); 13154cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.incorporateFunction(F); 13164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13174cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 13184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13194cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the number of basic blocks, so the reader can create them ahead of 13204cc499d6e5ec602309501873449c938af61170b2Stephen Hines // time. 13214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getBasicBlocks().size()); 13224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DECLAREBLOCKS, Vals); 13234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 13244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13254cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If there are function-local constants, emit them now. 13264cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CstStart, CstEnd; 13274cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.getFunctionConstantRange(CstStart, CstEnd); 13284cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteConstants(CstStart, CstEnd, VE, Stream, false); 13294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13304cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If there is function-local metadata, emit it now. 13314cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteFunctionLocalMetadata(F, VE, Stream); 13324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Keep a running idea of what the instruction ID is. 13344cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned InstID = CstEnd; 13354cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13364cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool NeedsMetadataAttachment = false; 13374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13384cc499d6e5ec602309501873449c938af61170b2Stephen Hines DebugLoc LastDL; 13394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13404cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Finally, emit all the instructions, in order. 13414cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) 13424cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 13434cc499d6e5ec602309501873449c938af61170b2Stephen Hines I != E; ++I) { 13444cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteInstruction(*I, InstID, VE, Stream, Vals); 13454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13464cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!I->getType()->isVoidTy()) 13474cc499d6e5ec602309501873449c938af61170b2Stephen Hines ++InstID; 13484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the instruction has metadata, write a metadata attachment later. 13504cc499d6e5ec602309501873449c938af61170b2Stephen Hines NeedsMetadataAttachment |= I->hasMetadataOtherThanDebugLoc(); 13514cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13524cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the instruction has a debug location, emit it. 13534cc499d6e5ec602309501873449c938af61170b2Stephen Hines DebugLoc DL = I->getDebugLoc(); 13544cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (DL.isUnknown()) { 13554cc499d6e5ec602309501873449c938af61170b2Stephen Hines // nothing todo. 13564cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (DL == LastDL) { 13574cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Just repeat the same debug loc as last time. 13584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC_AGAIN, Vals); 13594cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 13604cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDNode *Scope, *IA; 13614cc499d6e5ec602309501873449c938af61170b2Stephen Hines DL.getScopeAndInlinedAt(Scope, IA, I->getContext()); 13624cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(DL.getLine()); 13644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(DL.getCol()); 13654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Scope ? VE.getValueID(Scope)+1 : 0); 13664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(IA ? VE.getValueID(IA)+1 : 0); 13674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC, Vals); 13684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 13694cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13704cc499d6e5ec602309501873449c938af61170b2Stephen Hines LastDL = DL; 13714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13724cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13744cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit names for all the instructions etc. 13754cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream); 13764cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13774cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (NeedsMetadataAttachment) 13784cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMetadataAttachment(F, VE, Stream); 13794cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.purgeFunction(); 13804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 13814cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 13824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13834cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit blockinfo, which defines the standard abbreviations etc. 13844cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) { 13854cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We only want to emit block info records for blocks that have multiple 13864cc499d6e5ec602309501873449c938af61170b2Stephen Hines // instances: CONSTANTS_BLOCK, FUNCTION_BLOCK and VALUE_SYMTAB_BLOCK. Other 13874cc499d6e5ec602309501873449c938af61170b2Stephen Hines // blocks can defined their abbrevs inline. 13884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterBlockInfoBlock(2); 13894cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13904cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 8-bit fixed-width VST_ENTRY/VST_BBENTRY strings. 13914cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 13924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); 13934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 13944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 13954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 13964cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 13974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_8_ABBREV) 13984cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 13994cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14004cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14014cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 7-bit fixed width VST_ENTRY strings. 14024cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 14044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 14074cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_7_ABBREV) 14094cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14104cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14114cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 6-bit char6 VST_ENTRY strings. 14124cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 14144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14164cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 14174cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14184cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_6_ABBREV) 14194cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14204cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14214cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 6-bit char6 VST_BBENTRY strings. 14224cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_BBENTRY)); 14244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 14274cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_BBENTRY_6_ABBREV) 14294cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14304cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14344cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // SETTYPE abbrev for CONSTANTS_BLOCK. 14354cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_SETTYPE)); 14374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 14384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 14394cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_SETTYPE_ABBREV) 14414cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14424cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14444cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INTEGER abbrev for CONSTANTS_BLOCK. 14454cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_INTEGER)); 14474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14484cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_INTEGER_ABBREV) 14504cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14514cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14524cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14534cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // CE_CAST abbrev for CONSTANTS_BLOCK. 14544cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CE_CAST)); 14564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // cast opc 14574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // typeid 14584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 14594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // value id 14604cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14614cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_CE_CAST_Abbrev) 14634cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14644cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14654cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // NULL abbrev for CONSTANTS_BLOCK. 14664cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_NULL)); 14684cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_NULL_Abbrev) 14704cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14724cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14734cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: This should only use space for first class types! 14744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14754cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_LOAD abbrev for FUNCTION_BLOCK. 14764cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_LOAD)); 14784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Ptr 14794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 4)); // Align 14804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // volatile 14814cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 14824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_LOAD_ABBREV) 14834cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14844cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14854cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_BINOP abbrev for FUNCTION_BLOCK. 14864cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP)); 14884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS 14894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS 14904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 14914cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 14924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_BINOP_ABBREV) 14934cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14944cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14954cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_BINOP_FLAGS abbrev for FUNCTION_BLOCK. 14964cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP)); 14984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS 14994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS 15004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); // flags 15024cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_BINOP_FLAGS_ABBREV) 15044cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15054cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15064cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_CAST abbrev for FUNCTION_BLOCK. 15074cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_CAST)); 15094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // OpVal 15104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty 15114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 15124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15134cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_CAST_ABBREV) 15154cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15164cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15174cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15184cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_RET abbrev for FUNCTION_BLOCK. 15194cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET)); 15214cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_RET_VOID_ABBREV) 15234cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15244cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15254cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_RET abbrev for FUNCTION_BLOCK. 15264cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET)); 15284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ValID 15294cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_RET_VAL_ABBREV) 15314cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15324cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15334cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_UNREACHABLE abbrev for FUNCTION_BLOCK. 15344cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_UNREACHABLE)); 15364cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV) 15384cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15394cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15404cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 15424cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 15434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15444cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15454cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteModule - Emit the specified module to the bitstream. 15464cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModule(const Module *M, BitstreamWriter &Stream) { 15474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3); 15484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the version number if it is non-zero. 15504cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (CurVersion) { 15514cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 1> Vals; 15524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(CurVersion); 15534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_VERSION, Vals); 15544cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Analyze the module, enumerating globals, functions, etc. 15574cc499d6e5ec602309501873449c938af61170b2Stephen Hines ValueEnumerator VE(M); 15584cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15594cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit blockinfo, which defines the standard abbreviations etc. 15604cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteBlockInfo(VE, Stream); 15614cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15624cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information about parameter attributes. 15634cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteAttributeTable(VE, Stream); 15644cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15654cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information describing all of the types in the module. 15664cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteTypeTable(VE, Stream); 15674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15684cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit top-level description of module, including target triple, inline asm, 15694cc499d6e5ec602309501873449c938af61170b2Stephen Hines // descriptors for global variables, and function prototype info. 15704cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleInfo(M, VE, Stream); 15714cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15724cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit constants. 15734cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleConstants(VE, Stream); 15744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15754cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit metadata. 15764cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleMetadata(M, VE, Stream); 15774cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15784cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit function bodies. 15794cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) 15804cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!F->isDeclaration()) 15814cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteFunction(*F, VE, Stream); 15824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15834cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit metadata. 15844cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleMetadataStore(M, Stream); 15854cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15864cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit names for globals/functions etc. 15874cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteValueSymbolTable(M->getValueSymbolTable(), VE, Stream); 15884cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 15904cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 15914cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15924cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// EmitDarwinBCHeader - If generating a bc file on darwin, we have to emit a 15934cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// header and trailer to make it compatible with the system archiver. To do 15944cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// this we emit the following header, and then emit a trailer that pads the 15954cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// file out to be a multiple of 16 bytes. 15964cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// 15974cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// struct bc_header { 15984cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t Magic; // 0x0B17C0DE 15994cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t Version; // Version, currently always 0. 16004cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t BitcodeOffset; // Offset to traditional bitcode file. 16014cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t BitcodeSize; // Size of traditional bitcode file. 16024cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t CPUType; // CPU specifier. 16034cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// ... potentially more later ... 16044cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// }; 16054cc499d6e5ec602309501873449c938af61170b2Stephen Hinesenum { 16064cc499d6e5ec602309501873449c938af61170b2Stephen Hines DarwinBCSizeFieldOffset = 3*4, // Offset to bitcode_size. 16074cc499d6e5ec602309501873449c938af61170b2Stephen Hines DarwinBCHeaderSize = 5*4 16084cc499d6e5ec602309501873449c938af61170b2Stephen Hines}; 16094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16104cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void EmitDarwinBCHeader(BitstreamWriter &Stream, const Triple &TT) { 16114cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CPUType = ~0U; 16124cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16134cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Match x86_64-*, i[3-9]86-*, powerpc-*, powerpc64-*, arm-*, thumb-*, 16144cc499d6e5ec602309501873449c938af61170b2Stephen Hines // armv[0-9]-*, thumbv[0-9]-*, armv5te-*, or armv6t2-*. The CPUType is a magic 16154cc499d6e5ec602309501873449c938af61170b2Stephen Hines // number from /usr/include/mach/machine.h. It is ok to reproduce the 16164cc499d6e5ec602309501873449c938af61170b2Stephen Hines // specific constants here because they are implicitly part of the Darwin ABI. 16174cc499d6e5ec602309501873449c938af61170b2Stephen Hines enum { 16184cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_ARCH_ABI64 = 0x01000000, 16194cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_X86 = 7, 16204cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_ARM = 12, 16214cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_POWERPC = 18 16224cc499d6e5ec602309501873449c938af61170b2Stephen Hines }; 16234cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Triple::ArchType Arch = TT.getArch(); 16254cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Arch == Triple::x86_64) 16264cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_X86 | DARWIN_CPU_ARCH_ABI64; 16274cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::x86) 16284cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_X86; 16294cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::ppc) 16304cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_POWERPC; 16314cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::ppc64) 16324cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_POWERPC | DARWIN_CPU_ARCH_ABI64; 16334cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::arm || Arch == Triple::thumb) 16344cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_ARM; 16354cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16364cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Traditional Bitcode starts after header. 16374cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned BCOffset = DarwinBCHeaderSize; 16384cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0x0B17C0DE, 32); 16404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0 , 32); // Version. 16414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(BCOffset , 32); 16424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0 , 32); // Filled in later. 16434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(CPUType , 32); 16444cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 16454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16464cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// EmitDarwinBCTrailer - Emit the darwin epilog after the bitcode file and 16474cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// finalize the header. 16484cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void EmitDarwinBCTrailer(BitstreamWriter &Stream, unsigned BufferSize) { 16494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Update the size field in the header. 16504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.BackpatchWord(DarwinBCSizeFieldOffset, BufferSize-DarwinBCHeaderSize); 16514cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16524cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the file is not a multiple of 16 bytes, insert dummy padding. 16534cc499d6e5ec602309501873449c938af61170b2Stephen Hines while (BufferSize & 15) { 16544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0, 8); 16554cc499d6e5ec602309501873449c938af61170b2Stephen Hines ++BufferSize; 16564cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 16574cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 16584cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16604cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteBitcodeToFile - Write the specified module to the specified output 16614cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// stream. 16624cc499d6e5ec602309501873449c938af61170b2Stephen Hinesvoid llvm_2_9::WriteBitcodeToFile(const Module *M, raw_ostream &Out) { 16634cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::vector<unsigned char> Buffer; 16644cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter Stream(Buffer); 16654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Buffer.reserve(256*1024); 16674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16684cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteBitcodeToStream( M, Stream ); 16694cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16704cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write the generated bitstream to "Out". 16714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Out.write((char*)&Buffer.front(), Buffer.size()); 16724cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 16734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16744cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteBitcodeToStream - Write the specified module to the specified output 16754cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// stream. 16764cc499d6e5ec602309501873449c938af61170b2Stephen Hinesvoid llvm_2_9::WriteBitcodeToStream(const Module *M, BitstreamWriter &Stream) { 16774cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is darwin or another generic macho target, emit a file header and 16784cc499d6e5ec602309501873449c938af61170b2Stephen Hines // trailer if needed. 16794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Triple TT(M->getTargetTriple()); 16804cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (TT.isOSDarwin()) 16814cc499d6e5ec602309501873449c938af61170b2Stephen Hines EmitDarwinBCHeader(Stream, TT); 16824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16834cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the file header. 16844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit((unsigned)'B', 8); 16854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit((unsigned)'C', 8); 16864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0x0, 4); 16874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0xC, 4); 16884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0xE, 4); 16894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.Emit(0xD, 4); 16904cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16914cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the module. 16924cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModule(M, Stream); 16934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16944cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (TT.isOSDarwin()) 16954cc499d6e5ec602309501873449c938af61170b2Stephen Hines EmitDarwinBCTrailer(Stream, Stream.getBuffer().size()); 16964cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1697