BitcodeWriter.cpp revision c706907a8041faaa882f9bd87f1d1c1669023a62
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" 158bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines#include "legacy_bitcode.h" 164cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "ValueEnumerator.h" 174cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/ADT/Triple.h" 1823c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/Bitcode/BitstreamWriter.h" 1923c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/Bitcode/LLVMBitCodes.h" 2023c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/Constants.h" 21c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines#include "llvm/IR/DebugInfoMetadata.h" 2223c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/DerivedTypes.h" 2323c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/InlineAsm.h" 2423c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/Instructions.h" 2523c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/Module.h" 2623c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/Operator.h" 2723c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/IR/ValueSymbolTable.h" 284cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/ErrorHandling.h" 294cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/MathExtras.h" 304cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/Program.h" 3123c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines#include "llvm/Support/raw_ostream.h" 324cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include <cctype> 334cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include <map> 344cc499d6e5ec602309501873449c938af61170b2Stephen Hinesusing namespace llvm; 354cc499d6e5ec602309501873449c938af61170b2Stephen Hines 36a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines// Redefine older bitcode opcodes for use here. Note that these come from 37a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines// LLVM 2.7 (which is what HC shipped with). 38a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_NODE_2_7 2 39a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_FN_NODE_2_7 3 40a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_NAMED_NODE_2_7 5 41a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_ATTACHMENT_2_7 7 42a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define FUNC_CODE_INST_CALL_2_7 22 43a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define FUNC_CODE_DEBUG_LOC_2_7 32 44a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines 45ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien// Redefine older bitcode opcodes for use here. Note that these come from 46ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien// LLVM 2.7 - 3.0. 47ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien#define TYPE_BLOCK_ID_OLD_3_0 10 48ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien#define TYPE_SYMTAB_BLOCK_ID_OLD_3_0 13 49ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien#define TYPE_CODE_STRUCT_OLD_3_0 10 50ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien 514cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// These are manifest constants used by the bitcode writer. They do not need to 524cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// be kept in sync with the reader, but need to be consistent within this file. 534cc499d6e5ec602309501873449c938af61170b2Stephen Hinesenum { 544cc499d6e5ec602309501873449c938af61170b2Stephen Hines CurVersion = 0, 554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VALUE_SYMTAB_BLOCK abbrev id's. 574cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_8_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 584cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_7_ABBREV, 594cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_6_ABBREV, 604cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_BBENTRY_6_ABBREV, 614cc499d6e5ec602309501873449c938af61170b2Stephen Hines 624cc499d6e5ec602309501873449c938af61170b2Stephen Hines // CONSTANTS_BLOCK abbrev id's. 634cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_SETTYPE_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 644cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_INTEGER_ABBREV, 654cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_CE_CAST_Abbrev, 664cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_NULL_Abbrev, 674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 684cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION_BLOCK abbrev id's. 694cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 704cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_BINOP_ABBREV, 714cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_BINOP_FLAGS_ABBREV, 724cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_CAST_ABBREV, 734cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_RET_VOID_ABBREV, 744cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_RET_VAL_ABBREV, 754cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_UNREACHABLE_ABBREV 764cc499d6e5ec602309501873449c938af61170b2Stephen Hines}; 774cc499d6e5ec602309501873449c938af61170b2Stephen Hines 784cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned GetEncodedCastOpcode(unsigned Opcode) { 794cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (Opcode) { 804cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown cast instruction!"); 814cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Trunc : return bitc::CAST_TRUNC; 824cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ZExt : return bitc::CAST_ZEXT; 834cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SExt : return bitc::CAST_SEXT; 844cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPToUI : return bitc::CAST_FPTOUI; 854cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPToSI : return bitc::CAST_FPTOSI; 864cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::UIToFP : return bitc::CAST_UITOFP; 874cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SIToFP : return bitc::CAST_SITOFP; 884cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPTrunc : return bitc::CAST_FPTRUNC; 894cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPExt : return bitc::CAST_FPEXT; 904cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::PtrToInt: return bitc::CAST_PTRTOINT; 914cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::IntToPtr: return bitc::CAST_INTTOPTR; 924cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::BitCast : return bitc::CAST_BITCAST; 934cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 944cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 954cc499d6e5ec602309501873449c938af61170b2Stephen Hines 964cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned GetEncodedBinaryOpcode(unsigned Opcode) { 974cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (Opcode) { 984cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown binary instruction!"); 994cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Add: 1004cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FAdd: return bitc::BINOP_ADD; 1014cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Sub: 1024cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FSub: return bitc::BINOP_SUB; 1034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Mul: 1044cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FMul: return bitc::BINOP_MUL; 1054cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::UDiv: return bitc::BINOP_UDIV; 1064cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FDiv: 1074cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SDiv: return bitc::BINOP_SDIV; 1084cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::URem: return bitc::BINOP_UREM; 1094cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FRem: 1104cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SRem: return bitc::BINOP_SREM; 1114cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Shl: return bitc::BINOP_SHL; 1124cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::LShr: return bitc::BINOP_LSHR; 1134cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::AShr: return bitc::BINOP_ASHR; 1144cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::And: return bitc::BINOP_AND; 1154cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Or: return bitc::BINOP_OR; 1164cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Xor: return bitc::BINOP_XOR; 1174cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1184cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1194cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1204cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteStringRecord(unsigned Code, StringRef Str, 1214cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse, BitstreamWriter &Stream) { 1224cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 1234cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1244cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Code: [strchar x N] 1254cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 1264cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AbbrevToUse && !BitCodeAbbrevOp::isChar6(Str[i])) 1274cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = 0; 1284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Str[i]); 1294cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1304cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1314cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 1324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Vals, AbbrevToUse); 1334cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1344cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1354cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit information about parameter attributes. 1369937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteAttributeTable(const llvm_2_9::ValueEnumerator &VE, 1374cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 13823c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines const std::vector<AttributeSet> &Attrs = VE.getAttributes(); 1394cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Attrs.empty()) return; 1404cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::PARAMATTR_BLOCK_ID, 3); 1424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1434cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 1444cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Attrs.size(); i != e; ++i) { 14523c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines const AttributeSet &A = Attrs[i]; 1468bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines for (unsigned i = 0, e = A.getNumSlots(); i != e; ++i) { 1478bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines Record.push_back(A.getSlotIndex(i)); 1488bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines Record.push_back(encodeLLVMAttributesForBitcode(A, A.getSlotIndex(i))); 1498bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines } 1504cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1518bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines // This needs to use the 3.2 entry type 1528bb06b7c40b14ce2dae414b0aa034e9b23b278c9Stephen Hines Stream.EmitRecord(bitc::PARAMATTR_CODE_ENTRY_OLD, Record); 1534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 1544cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 1574cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1584cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1599937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteTypeSymbolTable(const llvm_2_9::ValueEnumerator &VE, 1604cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 1619937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator::TypeList &TypeList = VE.getTypes(); 162ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien Stream.EnterSubblock(TYPE_SYMTAB_BLOCK_ID_OLD_3_0, 3); 1634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 7-bit fixed width VST_CODE_ENTRY strings. 1654cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 1664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 1674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 1694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 1714cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned V7Abbrev = Stream.EmitAbbrev(Abbv); 1724cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1734cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> NameVals; 1744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1754cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { 1764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *T = TypeList[i]; 1774cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1784cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (T->getTypeID()) { 1794cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::StructTyID: { 1804cc499d6e5ec602309501873449c938af61170b2Stephen Hines StructType *ST = cast<StructType>(T); 1819207a2e495c8363606861e4f034504ec5c153dabLogan Chien if (ST->isLiteral()) { 1824cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Skip anonymous struct definitions in type symbol table 1834cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME(srhines) 1844cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 1854cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1864cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1874cc499d6e5ec602309501873449c938af61170b2Stephen Hines // TST_ENTRY: [typeid, namechar x N] 1884cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(i); 1894cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1904cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &Str = ST->getName(); 1914cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 1924cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 1934cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)Str[i]); 1944cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Str[i] & 128) 1954cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 1964cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1974cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1984cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 1994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::VST_CODE_ENTRY, NameVals, is7Bit ? V7Abbrev : 0); 2004cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 2014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2024cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 2034cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2044cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: break; 2054cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 2094cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 2104cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2114cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteTypeTable - Write out the type table for a module. 2129937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteTypeTable(const llvm_2_9::ValueEnumerator &VE, 2139937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines BitstreamWriter &Stream) { 2149937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator::TypeList &TypeList = VE.getTypes(); 2154cc499d6e5ec602309501873449c938af61170b2Stephen Hines 216ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien Stream.EnterSubblock(TYPE_BLOCK_ID_OLD_3_0, 4 /*count from # abbrevs */); 2174cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> TypeVals; 2184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 219c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines uint64_t NumBits = Log2_32_Ceil(VE.getTypes().size()+1); 220c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 2214cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_POINTER. 2224cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 2234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_POINTER)); 224c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, NumBits)); 2254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); // Addrspace = 0 2264cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned PtrAbbrev = Stream.EmitAbbrev(Abbv); 2274cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2284cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_FUNCTION. 2294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2308ec3bc862ac51f49e06bc465a6eb51871ce9d5daStephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_FUNCTION_OLD)); 2314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isvararg 2324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); // FIXME: DEAD value, remove in LLVM 3.0 2334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 234c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, NumBits)); 2354cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned FunctionAbbrev = Stream.EmitAbbrev(Abbv); 2364cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2384cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT. 2394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 240ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien Abbv->Add(BitCodeAbbrevOp(TYPE_CODE_STRUCT_OLD_3_0)); 2414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 243c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, NumBits)); 2444cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructAbbrev = Stream.EmitAbbrev(Abbv); 2454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2464cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_ARRAY. 2474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_ARRAY)); 2494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // size 250c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, NumBits)); 251c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 2524cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned ArrayAbbrev = Stream.EmitAbbrev(Abbv); 2534cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2544cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit an entry count so the reader can reserve space. 2554cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(TypeList.size()); 2564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::TYPE_CODE_NUMENTRY, TypeVals); 2574cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.clear(); 2584cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2594cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Loop over all of the types, emitting each in turn. 2604cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { 2614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *T = TypeList[i]; 2624cc499d6e5ec602309501873449c938af61170b2Stephen Hines int AbbrevToUse = 0; 2634cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = 0; 2644cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2654cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (T->getTypeID()) { 2664cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown type!"); 2674cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::VoidTyID: Code = bitc::TYPE_CODE_VOID; break; 2684cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FloatTyID: Code = bitc::TYPE_CODE_FLOAT; break; 2694cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::DoubleTyID: Code = bitc::TYPE_CODE_DOUBLE; break; 2704cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::X86_FP80TyID: Code = bitc::TYPE_CODE_X86_FP80; break; 2714cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FP128TyID: Code = bitc::TYPE_CODE_FP128; break; 2724cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::PPC_FP128TyID: Code = bitc::TYPE_CODE_PPC_FP128; break; 2734cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::LabelTyID: Code = bitc::TYPE_CODE_LABEL; break; 2744cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::MetadataTyID: Code = bitc::TYPE_CODE_METADATA; break; 2754cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::X86_MMXTyID: Code = bitc::TYPE_CODE_X86_MMX; break; 2764cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::IntegerTyID: 2774cc499d6e5ec602309501873449c938af61170b2Stephen Hines // INTEGER: [width] 2784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_INTEGER; 2794cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(cast<IntegerType>(T)->getBitWidth()); 2804cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 2814cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::PointerTyID: { 2824cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(T); 2834cc499d6e5ec602309501873449c938af61170b2Stephen Hines // POINTER: [pointee type, address space] 2844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_POINTER; 2854cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(PTy->getElementType())); 2864cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AddressSpace = PTy->getAddressSpace(); 2874cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(AddressSpace); 2884cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AddressSpace == 0) AbbrevToUse = PtrAbbrev; 2894cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 2904cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2914cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FunctionTyID: { 2924cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FT = cast<FunctionType>(T); 2934cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION: [isvararg, attrid, retty, paramty x N] 2948ec3bc862ac51f49e06bc465a6eb51871ce9d5daStephen Hines Code = bitc::TYPE_CODE_FUNCTION_OLD; 2954cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(FT->isVarArg()); 2964cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(0); // FIXME: DEAD: remove in llvm 3.0 2974cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(FT->getReturnType())); 2984cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) 2994cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(FT->getParamType(i))); 3004cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FunctionAbbrev; 3014cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3024cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::StructTyID: { 3044cc499d6e5ec602309501873449c938af61170b2Stephen Hines StructType *ST = cast<StructType>(T); 3054cc499d6e5ec602309501873449c938af61170b2Stephen Hines // STRUCT: [ispacked, eltty x N] 3064cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(ST->isPacked()); 3074cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Output all of the element types. 3084cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (StructType::element_iterator I = ST->element_begin(), 3094cc499d6e5ec602309501873449c938af61170b2Stephen Hines E = ST->element_end(); I != E; ++I) 3104cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(*I)); 3114cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = StructAbbrev; 3124cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3144cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::ArrayTyID: { 3154cc499d6e5ec602309501873449c938af61170b2Stephen Hines ArrayType *AT = cast<ArrayType>(T); 3164cc499d6e5ec602309501873449c938af61170b2Stephen Hines // ARRAY: [numelts, eltty] 3174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_ARRAY; 3184cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(AT->getNumElements()); 3194cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(AT->getElementType())); 3204cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = ArrayAbbrev; 3214cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3224cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3234cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::VectorTyID: { 3244cc499d6e5ec602309501873449c938af61170b2Stephen Hines VectorType *VT = cast<VectorType>(T); 3254cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VECTOR [numelts, eltty] 3264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_VECTOR; 3274cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VT->getNumElements()); 3284cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(VT->getElementType())); 3294cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3304cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3314cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 3344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, TypeVals, AbbrevToUse); 3354cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.clear(); 3364cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 3394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3404cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteTypeSymbolTable(VE, Stream); 3414cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 3424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 343c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hinesstatic unsigned getEncodedLinkage(const GlobalValue &GV) { 344c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines switch (GV.getLinkage()) { 345c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::ExternalLinkage: 346c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 0; 347c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::WeakAnyLinkage: 348c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 1; 349c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::AppendingLinkage: 350c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 2; 351c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::InternalLinkage: 352c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 3; 353c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::LinkOnceAnyLinkage: 354c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 4; 355c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::ExternalWeakLinkage: 356c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 7; 357c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::CommonLinkage: 358c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 8; 359c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::PrivateLinkage: 360c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 9; 361c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::WeakODRLinkage: 362c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 10; 363c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::LinkOnceODRLinkage: 364c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 11; 365c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case GlobalValue::AvailableExternallyLinkage: 366c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return 12; 3674cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 368376dc03c6bb42050ddd8a56d1a3e3c6f5d6f6e1dStephen Hines llvm_unreachable("Invalid linkage"); 3694cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 3704cc499d6e5ec602309501873449c938af61170b2Stephen Hines 371c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hinesstatic unsigned getEncodedVisibility(const GlobalValue &GV) { 372c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines switch (GV.getVisibility()) { 3734cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DefaultVisibility: return 0; 3744cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::HiddenVisibility: return 1; 3754cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ProtectedVisibility: return 2; 3764cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 377c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines llvm_unreachable("Invalid visibility"); 3784cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 3794cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3804cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit top-level description of module, including target triple, inline asm, 3814cc499d6e5ec602309501873449c938af61170b2Stephen Hines// descriptors for global variables, and function prototype info. 3829937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteModuleInfo(const Module *M, 3839937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator &VE, 3844cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 3854cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit various pieces of data attached to a module. 3864cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getTargetTriple().empty()) 3874cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_TRIPLE, M->getTargetTriple(), 3884cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 389c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines const std::string &DL = M->getDataLayoutStr(); 390c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (!DL.empty()) 391c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines WriteStringRecord(bitc::MODULE_CODE_DATALAYOUT, DL, 0 /*TODO*/, Stream); 3924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getModuleInlineAsm().empty()) 3934cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_ASM, M->getModuleInlineAsm(), 3944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 3954cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3964cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information about sections and GC, computing how many there are. Also 3974cc499d6e5ec602309501873449c938af61170b2Stephen Hines // compute the maximum alignment value. 3984cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::map<std::string, unsigned> SectionMap; 3994cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::map<std::string, unsigned> GCMap; 4004cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxAlignment = 0; 4014cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxGlobalType = 0; 402c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const GlobalValue &GV : M->globals()) { 403c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines MaxAlignment = std::max(MaxAlignment, GV.getAlignment()); 404c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV.getType())); 405c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (GV.hasSection()) { 406c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Give section names unique ID's. 407c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned &Entry = SectionMap[GV.getSection()]; 408c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (!Entry) { 409c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, GV.getSection(), 410c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 0/*TODO*/, Stream); 411c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Entry = SectionMap.size(); 412c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 413c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 4144cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 415c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const Function &F : *M) { 416c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines MaxAlignment = std::max(MaxAlignment, F.getAlignment()); 417c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (F.hasSection()) { 4184cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Give section names unique ID's. 419c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned &Entry = SectionMap[F.getSection()]; 4204cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!Entry) { 421c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F.getSection(), 4224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = SectionMap.size(); 4244cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4254cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 426c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (F.hasGC()) { 4274cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Same for GC names. 428c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned &Entry = GCMap[F.getGC()]; 4294cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!Entry) { 430c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines WriteStringRecord(bitc::MODULE_CODE_GCNAME, F.getGC(), 4314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = GCMap.size(); 4334cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4344cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4354cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4364cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4374cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit abbrev for globals, now that we know # sections and max alignment. 4384cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned SimpleGVarAbbrev = 0; 4394cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->global_empty()) { 4404cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add an abbrev for common globals with no visibility or thread localness. 4414cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 4424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::MODULE_CODE_GLOBALVAR)); 4434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(MaxGlobalType+1))); 4454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constant. 4464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer. 4474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // Linkage. 4484cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (MaxAlignment == 0) // Alignment. 4494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); 4504cc499d6e5ec602309501873449c938af61170b2Stephen Hines else { 4514cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxEncAlignment = Log2_32(MaxAlignment)+1; 4524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(MaxEncAlignment+1))); 4544cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4554cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (SectionMap.empty()) // Section. 4564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); 4574cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 4584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(SectionMap.size()+1))); 4604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Don't bother emitting vis + thread local. 4614cc499d6e5ec602309501873449c938af61170b2Stephen Hines SimpleGVarAbbrev = Stream.EmitAbbrev(Abbv); 4624cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the global variable information. 4654cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 466c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const GlobalVariable &GV : M->globals()) { 4674cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 4684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4694cc499d6e5ec602309501873449c938af61170b2Stephen Hines // GLOBALVAR: [type, isconst, initid, 4704cc499d6e5ec602309501873449c938af61170b2Stephen Hines // linkage, alignment, section, visibility, threadlocal, 4714cc499d6e5ec602309501873449c938af61170b2Stephen Hines // unnamed_addr] 472c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getTypeID(GV.getType())); 473c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(GV.isConstant()); 474c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(GV.isDeclaration() ? 0 : 475c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines (VE.getValueID(GV.getInitializer()) + 1)); 4764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(GV)); 477c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(Log2_32(GV.getAlignment())+1); 478c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(GV.hasSection() ? SectionMap[GV.getSection()] : 0); 479c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (GV.isThreadLocal() || 480c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines GV.getVisibility() != GlobalValue::DefaultVisibility || 481c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines GV.hasUnnamedAddr()) { 4824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(GV)); 483c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(GV.isThreadLocal()); 484c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(GV.hasUnnamedAddr()); 4854cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 4864cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = SimpleGVarAbbrev; 4874cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4884cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_GLOBALVAR, Vals, AbbrevToUse); 4904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 4914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4924cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4934cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the function proto information. 494c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const Function &F : *M) { 4954cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION: [type, callingconv, isproto, paramattr, 4964cc499d6e5ec602309501873449c938af61170b2Stephen Hines // linkage, alignment, section, visibility, gc, unnamed_addr] 497c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getTypeID(F.getType())); 498c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(F.getCallingConv()); 499c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(F.isDeclaration()); 5004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(F)); 501c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getAttributeID(F.getAttributes())); 502c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(Log2_32(F.getAlignment())+1); 503c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(F.hasSection() ? SectionMap[F.getSection()] : 0); 5044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(F)); 505c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(F.hasGC() ? GCMap[F.getGC()] : 0); 506c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(F.hasUnnamedAddr()); 5074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5084cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_FUNCTION, Vals, AbbrevToUse); 5104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5114cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5124cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5134cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the alias information. 514c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const GlobalAlias &A : M->aliases()) { 515c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getTypeID(A.getType())); 516c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getValueID(A.getAliasee())); 517c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(getEncodedLinkage(A)); 518c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(getEncodedVisibility(A)); 5194cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_ALIAS, Vals, AbbrevToUse); 5214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5224cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5234cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5254cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic uint64_t GetOptimizationFlags(const Value *V) { 5264cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = 0; 5274cc499d6e5ec602309501873449c938af61170b2Stephen Hines 528c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (const auto *OBO = dyn_cast<OverflowingBinaryOperator>(V)) { 5294cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (OBO->hasNoSignedWrap()) 5304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::OBO_NO_SIGNED_WRAP; 5314cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (OBO->hasNoUnsignedWrap()) 5324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::OBO_NO_UNSIGNED_WRAP; 533c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } else if (const auto *PEO = dyn_cast<PossiblyExactOperator>(V)) { 5344cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (PEO->isExact()) 5354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::PEO_EXACT; 5364cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5384cc499d6e5ec602309501873449c938af61170b2Stephen Hines return Flags; 5394cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5404cc499d6e5ec602309501873449c938af61170b2Stephen Hines 541c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hinesstatic void WriteValueAsMetadata(const ValueAsMetadata *MD, 542c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines const llvm_2_9::ValueEnumerator &VE, 543c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines BitstreamWriter &Stream, 544c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines SmallVectorImpl<uint64_t> &Record) { 545c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Mimic an MDNode with a value as one operand. 546c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Value *V = MD->getValue(); 547c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getTypeID(V->getType())); 548c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getValueID(V)); 549c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EmitRecord(METADATA_NODE_2_7, Record, 0); 550c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.clear(); 551c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines} 552c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 553c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hinesstatic void WriteMDTuple(const MDTuple *N, const llvm_2_9::ValueEnumerator &VE, 554c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines BitstreamWriter &Stream, 555c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines SmallVectorImpl<uint64_t> &Record, unsigned Abbrev) { 5564cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 557c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Metadata *MD = N->getOperand(i); 558c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines assert(!(MD && isa<LocalAsMetadata>(MD)) && 559c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines "Unexpected function-local metadata"); 560c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (!MD) { 561c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // TODO(srhines): I don't believe this case can exist for RS. 562c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getTypeID(llvm::Type::getVoidTy(N->getContext()))); 5634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(0); 564c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } else if (const auto *MDC = dyn_cast<ConstantAsMetadata>(MD)) { 565c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getTypeID(MDC->getType())); 566c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getValueID(MDC->getValue())); 567c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } else { 568c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getTypeID( 569c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines llvm::Type::getMetadataTy(N->getContext()))); 570c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getMetadataID(MD)); 5714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5724cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 573c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EmitRecord(METADATA_NODE_2_7, Record, Abbrev); 5744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 5754cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5764cc499d6e5ec602309501873449c938af61170b2Stephen Hines 577c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines/*static void WriteMDLocation(const MDLocation *N, const llvm_2_9::ValueEnumerator &VE, 578c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines BitstreamWriter &Stream, 579c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines SmallVectorImpl<uint64_t> &Record, 580c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned Abbrev) { 581c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(N->isDistinct()); 582c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(N->getLine()); 583c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(N->getColumn()); 584c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getMetadataID(N->getScope())); 585c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getMetadataOrNullID(N->getInlinedAt())); 586c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 587c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EmitRecord(bitc::METADATA_LOCATION, Record, Abbrev); 588c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.clear(); 589c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines} 590c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 591c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hinesstatic void WriteGenericDebugNode(const GenericDebugNode *, 592c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines const llvm_2_9::ValueEnumerator &, BitstreamWriter &, 593c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines SmallVectorImpl<uint64_t> &, unsigned) { 594c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines llvm_unreachable("unimplemented"); 595c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines}*/ 596c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 5974cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleMetadata(const Module *M, 5989937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator &VE, 5994cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 600c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines const auto &MDs = VE.getMDs(); 601c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (MDs.empty() && M->named_metadata_empty()) 602c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines return; 603c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 604c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // RenderScript files *ALWAYS* have metadata! 605c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 606c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 6074cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MDSAbbrev = 0; 608c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (VE.hasMDString()) { 609c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Abbrev for METADATA_STRING. 610c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 611c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_STRING)); 612c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 613c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 614c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines MDSAbbrev = Stream.EmitAbbrev(Abbv); 615c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 6164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 617c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned MDLocationAbbrev = 0; 618c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (VE.hasMDLocation()) { 619c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // TODO(srhines): Should be unreachable for RenderScript. 620c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Abbrev for METADATA_LOCATION. 621c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // 622c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Assume the column is usually under 128, and always output the inlined-at 623c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // location (it's never more expensive than building an array size 1). 624c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 625c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_LOCATION)); 626c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); 627c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 628c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 629c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 630c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); 631c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines MDLocationAbbrev = Stream.EmitAbbrev(Abbv); 632c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 6334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 634c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned NameAbbrev = 0; 635c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (!M->named_metadata_empty()) { 636c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Abbrev for METADATA_NAME. 637c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 638c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_NAME)); 639c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 640c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 641c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines NameAbbrev = Stream.EmitAbbrev(Abbv); 642c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 6434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 644c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines unsigned MDTupleAbbrev = 0; 645c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines //unsigned GenericDebugNodeAbbrev = 0; 646c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines SmallVector<uint64_t, 64> Record; 647c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const Metadata *MD : MDs) { 648c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (const MDNode *N = dyn_cast<MDNode>(MD)) { 649c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines switch (N->getMetadataID()) { 650c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines default: 651c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines llvm_unreachable("Invalid MDNode subclass"); 652c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) 653c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines#define HANDLE_MDNODE_LEAF(CLASS) \ 654c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines case Metadata::CLASS##Kind: \ 655c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Write##CLASS(cast<CLASS>(N), VE, Stream, Record, CLASS##Abbrev); \ 656c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines continue; 657c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines#include "llvm/IR/Metadata.def" 658c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 659c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 660c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (const auto *MDC = dyn_cast<ConstantAsMetadata>(MD)) { 661c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines WriteValueAsMetadata(MDC, VE, Stream, Record); 662c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines continue; 6634cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 664c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines const MDString *MDS = cast<MDString>(MD); 665c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Code: [strchar x N] 666c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.append(MDS->bytes_begin(), MDS->bytes_end()); 667c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines 668c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines // Emit the finished record. 669c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev); 670c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.clear(); 6714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6724cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6734cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write named metadata. 674c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const NamedMDNode &NMD : M->named_metadata()) { 6754cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write name. 676c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines StringRef Str = NMD.getName(); 677c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.append(Str.bytes_begin(), Str.bytes_end()); 678c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EmitRecord(bitc::METADATA_NAME, Record, NameAbbrev); 6794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6804cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write named metadata operands. 682c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (const MDNode *N : NMD.operands()) 683c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getMetadataID(N)); 684a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Stream.EmitRecord(METADATA_NAMED_NODE_2_7, Record, 0); 6854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6864cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6874cc499d6e5ec602309501873449c938af61170b2Stephen Hines 688c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.ExitBlock(); 6894cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 6904cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6914cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteFunctionLocalMetadata(const Function &F, 6929937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator &VE, 6934cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 6944cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool StartedMetadataBlock = false; 6954cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 696c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines const SmallVectorImpl<const LocalAsMetadata *> &MDs = 697c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines VE.getFunctionLocalMDs(); 698c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines for (unsigned i = 0, e = MDs.size(); i != e; ++i) { 699c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines assert(MDs[i] && "Expected valid function-local metadata"); 700c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines if (!StartedMetadataBlock) { 701c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 702c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines StartedMetadataBlock = true; 703c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 704c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines WriteValueAsMetadata(MDs[i], VE, Stream, Record); 705c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines } 7064cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7074cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (StartedMetadataBlock) 7084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7094cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7104cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7114cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteMetadataAttachment(const Function &F, 7129937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator &VE, 7134cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 7144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_ATTACHMENT_ID, 3); 7154cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7164cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 7174cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7184cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write metadata attachments 7194cc499d6e5ec602309501873449c938af61170b2Stephen Hines // METADATA_ATTACHMENT - [m x [value, [n x [id, mdnode]]] 720c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines SmallVector<std::pair<unsigned, MDNode *>, 4> MDs; 7214cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7224cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) 7234cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 7244cc499d6e5ec602309501873449c938af61170b2Stephen Hines I != E; ++I) { 7254cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDs.clear(); 7264cc499d6e5ec602309501873449c938af61170b2Stephen Hines I->getAllMetadataOtherThanDebugLoc(MDs); 7274cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7284cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If no metadata, ignore instruction. 7294cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (MDs.empty()) continue; 7304cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getInstructionID(I)); 7324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7334cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = MDs.size(); i != e; ++i) { 7344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(MDs[i].first); 735c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Record.push_back(VE.getMetadataID(MDs[i].second)); 7364cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 737a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Stream.EmitRecord(METADATA_ATTACHMENT_2_7, Record, 0); 7384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7394cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7404cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7424cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7444cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleMetadataStore(const Module *M, BitstreamWriter &Stream) { 7454cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 7464cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7474cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write metadata kinds 7484cc499d6e5ec602309501873449c938af61170b2Stephen Hines // METADATA_KIND - [n x [id, name]] 7494cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<StringRef, 4> Names; 7504cc499d6e5ec602309501873449c938af61170b2Stephen Hines M->getMDKindNames(Names); 7514cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7524cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Names.empty()) return; 7534cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 7554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7564cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned MDKindID = 0, e = Names.size(); MDKindID != e; ++MDKindID) { 7574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(MDKindID); 7584cc499d6e5ec602309501873449c938af61170b2Stephen Hines StringRef KName = Names[MDKindID]; 7594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.append(KName.begin(), KName.end()); 7604cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_KIND, Record, 0); 7624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7634cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7644cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7664cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7684cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteConstants(unsigned FirstVal, unsigned LastVal, 7699937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator &VE, 7704cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream, bool isGlobal) { 7714cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FirstVal == LastVal) return; 7724cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::CONSTANTS_BLOCK_ID, 4); 7744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7754cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AggregateAbbrev = 0; 7764cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned String8Abbrev = 0; 7774cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CString7Abbrev = 0; 7784cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CString6Abbrev = 0; 7794cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is a constant pool for the module, emit module-specific abbrevs. 7804cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isGlobal) { 7814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_AGGREGATE. 7824cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 7834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_AGGREGATE)); 7844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, Log2_32_Ceil(LastVal+1))); 7864cc499d6e5ec602309501873449c938af61170b2Stephen Hines AggregateAbbrev = Stream.EmitAbbrev(Abbv); 7874cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7884cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_STRING. 7894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_STRING)); 7914cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 7934cc499d6e5ec602309501873449c938af61170b2Stephen Hines String8Abbrev = Stream.EmitAbbrev(Abbv); 7944cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_CSTRING. 7954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING)); 7974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 7994cc499d6e5ec602309501873449c938af61170b2Stephen Hines CString7Abbrev = Stream.EmitAbbrev(Abbv); 8004cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_CSTRING. 8014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 8024cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING)); 8034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 8044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 8054cc499d6e5ec602309501873449c938af61170b2Stephen Hines CString6Abbrev = Stream.EmitAbbrev(Abbv); 8064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8084cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 8094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8109937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator::ValueList &Vals = VE.getValues(); 811c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Type *LastTy = nullptr; 8124cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FirstVal; i != LastVal; ++i) { 8134cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Value *V = Vals[i].first; 8144cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If we need to switch types, do so now. 8154cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (V->getType() != LastTy) { 8164cc499d6e5ec602309501873449c938af61170b2Stephen Hines LastTy = V->getType(); 8174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(LastTy)); 8184cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::CST_CODE_SETTYPE, Record, 8194cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_SETTYPE_ABBREV); 8204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 8214cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8234cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) { 8244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(unsigned(IA->hasSideEffects()) | 8254cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned(IA->isAlignStack()) << 1); 8264cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8274cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add the asm string. 8284cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &AsmStr = IA->getAsmString(); 8294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(AsmStr.size()); 8304cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = AsmStr.size(); i != e; ++i) 8314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(AsmStr[i]); 8324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add the constraint string. 8344cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &ConstraintStr = IA->getConstraintString(); 8354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(ConstraintStr.size()); 8364cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = ConstraintStr.size(); i != e; ++i) 8374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(ConstraintStr[i]); 8384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::CST_CODE_INLINEASM, Record); 8394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 8404cc499d6e5ec602309501873449c938af61170b2Stephen Hines continue; 8414cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8424cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Constant *C = cast<Constant>(V); 8434cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = -1U; 8444cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 8454cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (C->isNullValue()) { 8464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_NULL; 8474cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (isa<UndefValue>(C)) { 8484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_UNDEF; 8494cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantInt *IV = dyn_cast<ConstantInt>(C)) { 8504cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (IV->getBitWidth() <= 64) { 8514cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t V = IV->getSExtValue(); 8524cc499d6e5ec602309501873449c938af61170b2Stephen Hines if ((int64_t)V >= 0) 8534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V << 1); 8544cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 8554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((-V << 1) | 1); 8564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_INTEGER; 8574cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CONSTANTS_INTEGER_ABBREV; 8584cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { // Wide integers, > 64 bits in size. 8594cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We have an arbitrary precision integer value to write whose 8604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // bit width is > 64. However, in canonical unsigned integer 8614cc499d6e5ec602309501873449c938af61170b2Stephen Hines // format it is likely that the high bits are going to be zero. 8624cc499d6e5ec602309501873449c938af61170b2Stephen Hines // So, we only write the number of active words. 8634cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NWords = IV->getValue().getActiveWords(); 8644cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *RawWords = IV->getValue().getRawData(); 8654cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0; i != NWords; ++i) { 8664cc499d6e5ec602309501873449c938af61170b2Stephen Hines int64_t V = RawWords[i]; 8674cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (V >= 0) 8684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V << 1); 8694cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 8704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((-V << 1) | 1); 8714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_WIDE_INTEGER; 8734cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8744cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) { 8754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_FLOAT; 8764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *Ty = CFP->getType(); 8774cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Ty->isFloatTy() || Ty->isDoubleTy()) { 8784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(CFP->getValueAPF().bitcastToAPInt().getZExtValue()); 8794cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (Ty->isX86_FP80Ty()) { 8804cc499d6e5ec602309501873449c938af61170b2Stephen Hines // api needed to prevent premature destruction 8814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // bits are not in the same order as a normal i80 APInt, compensate. 8824cc499d6e5ec602309501873449c938af61170b2Stephen Hines APInt api = CFP->getValueAPF().bitcastToAPInt(); 8834cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *p = api.getRawData(); 8844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((p[1] << 48) | (p[0] >> 16)); 8854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[0] & 0xffffLL); 8864cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (Ty->isFP128Ty() || Ty->isPPC_FP128Ty()) { 8874cc499d6e5ec602309501873449c938af61170b2Stephen Hines APInt api = CFP->getValueAPF().bitcastToAPInt(); 8884cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *p = api.getRawData(); 8894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[0]); 8904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[1]); 8914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 8924cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert (0 && "Unknown FP type!"); 8934cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8940444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else if (isa<ConstantDataSequential>(C) && 8950444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines cast<ConstantDataSequential>(C)->isString()) { 8960444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines const ConstantDataSequential *Str = cast<ConstantDataSequential>(C); 8974cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit constant strings specially. 8980444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned NumElts = Str->getNumElements(); 8994cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is a null-terminated string, use the denser CSTRING encoding. 9000444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines if (Str->isCString()) { 9014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CSTRING; 9020444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines --NumElts; // Don't encode the null, which isn't allowed by char6. 9034cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_STRING; 9054cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = String8Abbrev; 9064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9074cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isCStr7 = Code == bitc::CST_CODE_CSTRING; 9084cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isCStrChar6 = Code == bitc::CST_CODE_CSTRING; 9090444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines for (unsigned i = 0; i != NumElts; ++i) { 9100444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned char V = Str->getElementAsInteger(i); 9114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V); 9124cc499d6e5ec602309501873449c938af61170b2Stephen Hines isCStr7 &= (V & 128) == 0; 9134cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isCStrChar6) 9144cc499d6e5ec602309501873449c938af61170b2Stephen Hines isCStrChar6 = BitCodeAbbrevOp::isChar6(V); 9154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 91623c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines 9174cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isCStrChar6) 9184cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CString6Abbrev; 9194cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (isCStr7) 9204cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CString7Abbrev; 92123c4358f12bd9d0ba7166eceebd683db95a41b3fStephen Hines } else if (const ConstantDataSequential *CDS = 9220444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines dyn_cast<ConstantDataSequential>(C)) { 923db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines // We must replace ConstantDataSequential's representation with the 924db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines // legacy ConstantArray/ConstantVector/ConstantStruct version. 925db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines // ValueEnumerator is similarly modified to mark the appropriate 926db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines // Constants as used (so they are emitted). 927db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines Code = bitc::CST_CODE_AGGREGATE; 928db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) 929db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines Record.push_back(VE.getValueID(CDS->getElementAsConstant(i))); 930db37c900ebe6f0ae62a1f77327dd9e5a469ff11eStephen Hines AbbrevToUse = AggregateAbbrev; 9310444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else if (isa<ConstantArray>(C) || isa<ConstantStruct>(C) || 9320444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines isa<ConstantVector>(C)) { 9334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_AGGREGATE; 9344cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) 9354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(i))); 9364cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = AggregateAbbrev; 9374cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) { 9384cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (CE->getOpcode()) { 9394cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: 9404cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Instruction::isCast(CE->getOpcode())) { 9414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_CAST; 9424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(GetEncodedCastOpcode(CE->getOpcode())); 9434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9454cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CONSTANTS_CE_CAST_Abbrev; 9464cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9474cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert(CE->getNumOperands() == 2 && "Unknown constant expr!"); 9484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_BINOP; 9494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(GetEncodedBinaryOpcode(CE->getOpcode())); 9504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9524cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = GetOptimizationFlags(CE); 9534cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Flags != 0) 9544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(Flags); 9554cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9564cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9574cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::GetElementPtr: 9584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_GEP; 9594cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (cast<GEPOperator>(C)->isInBounds()) 9604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_INBOUNDS_GEP; 9614cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) { 9624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(i)->getType())); 9634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(i))); 9644cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9654cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9664cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Select: 9674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SELECT; 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(VE.getValueID(C->getOperand(2))); 9714cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9724cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractElement: 9734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_EXTRACTELT; 9744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9774cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9784cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertElement: 9794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_INSERTELT; 9804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9834cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9844cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ShuffleVector: 9854cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the return type and argument types are the same, this is a 9864cc499d6e5ec602309501873449c938af61170b2Stephen Hines // standard shufflevector instruction. If the types are different, 9874cc499d6e5ec602309501873449c938af61170b2Stephen Hines // then the shuffle is widening or truncating the input vectors, and 9884cc499d6e5ec602309501873449c938af61170b2Stephen Hines // the argument type must also be encoded. 9894cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (C->getType() == C->getOperand(0)->getType()) { 9904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SHUFFLEVEC; 9914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SHUFVEC_EX; 9934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9944cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9984cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9994cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ICmp: 10004cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FCmp: 10014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_CMP; 10024cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 10034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 10044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 10054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(CE->getPredicate()); 10064cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10074cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10084cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C)) { 10094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_BLOCKADDRESS; 10104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(BA->getFunction()->getType())); 10114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(BA->getFunction())); 10124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getGlobalBasicBlockID(BA->getBasicBlock())); 10134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 10144cc499d6e5ec602309501873449c938af61170b2Stephen Hines#ifndef NDEBUG 10154cc499d6e5ec602309501873449c938af61170b2Stephen Hines C->dump(); 10164cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 10174cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unknown constant!"); 10184cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10194cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Record, AbbrevToUse); 10204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 10214cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 10244cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10254cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10269937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteModuleConstants(const llvm_2_9::ValueEnumerator &VE, 10274cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 10289937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator::ValueList &Vals = VE.getValues(); 10294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10304cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Find the first constant to emit, which is the first non-globalvalue value. 10314cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We know globalvalues have been emitted by WriteModuleInfo. 10324cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) { 10334cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!isa<GlobalValue>(Vals[i].first)) { 10344cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteConstants(i, Vals.size(), VE, Stream, true); 10354cc499d6e5ec602309501873449c938af61170b2Stephen Hines return; 10364cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10374cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10384cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10404cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// PushValueAndType - The file has to encode both the value and type id for 10414cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// many values, because we need to know what type to create for forward 10424cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// references. However, most operands are not forward references, so this type 10434cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// field is not needed. 10444cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// 10454cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// This function adds V's value ID to Vals. If the value ID is higher than the 10464cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// instruction ID, then it is a forward reference, and it also includes the 10474cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// type ID. 10484cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic bool PushValueAndType(const Value *V, unsigned InstID, 10494cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> &Vals, 10509937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines llvm_2_9::ValueEnumerator &VE) { 10514cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned ValID = VE.getValueID(V); 10524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(ValID); 10534cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (ValID >= InstID) { 10544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(V->getType())); 10554cc499d6e5ec602309501873449c938af61170b2Stephen Hines return true; 10564cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10574cc499d6e5ec602309501873449c938af61170b2Stephen Hines return false; 10584cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10604cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteInstruction - Emit an instruction to the specified stream. 10614cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteInstruction(const Instruction &I, unsigned InstID, 10629937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines llvm_2_9::ValueEnumerator &VE, 10639937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines BitstreamWriter &Stream, 10644cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> &Vals) { 10654cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = 0; 10664cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 10674cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.setInstructionID(&I); 10684cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (I.getOpcode()) { 10694cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: 10704cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Instruction::isCast(I.getOpcode())) { 10714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CAST; 10724cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 10734cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_CAST_ABBREV; 10744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); 10754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GetEncodedCastOpcode(I.getOpcode())); 10764cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 10774cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert(isa<BinaryOperator>(I) && "Unknown instruction!"); 10784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_BINOP; 10794cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 10804cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_BINOP_ABBREV; 10814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 10824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode())); 10834cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = GetOptimizationFlags(&I); 10844cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Flags != 0) { 10854cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AbbrevToUse == FUNCTION_INST_BINOP_ABBREV) 10864cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_BINOP_FLAGS_ABBREV; 10874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Flags); 10884cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10894cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10904cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10914cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10924cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::GetElementPtr: 1093c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Code = bitc::FUNC_CODE_INST_GEP_OLD; 10944cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (cast<GEPOperator>(&I)->isInBounds()) 1095c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Code = bitc::FUNC_CODE_INST_INBOUNDS_GEP_OLD; 10964cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 10974cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); 10984cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10994cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractValue: { 11004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_EXTRACTVAL; 11014cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11024cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ExtractValueInst *EVI = cast<ExtractValueInst>(&I); 11034cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i) 11044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(*i); 11054cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11074cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertValue: { 11084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INSERTVAL; 11094cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11104cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); 11114cc499d6e5ec602309501873449c938af61170b2Stephen Hines const InsertValueInst *IVI = cast<InsertValueInst>(&I); 11124cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i) 11134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(*i); 11144cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11164cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Select: 11174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_VSELECT; 11184cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); 11194cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11204cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11214cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11224cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractElement: 11234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_EXTRACTELT; 11244cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11264cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11274cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertElement: 11284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INSERTELT; 11294cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11324cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11334cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ShuffleVector: 11344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_SHUFFLEVEC; 11354cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11384cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11394cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ICmp: 11404cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FCmp: 11414cc499d6e5ec602309501873449c938af61170b2Stephen Hines // compare returning Int1Ty or vector of Int1Ty 11424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CMP2; 11434cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<CmpInst>(I).getPredicate()); 11464cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11474cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11484cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Ret: 11494cc499d6e5ec602309501873449c938af61170b2Stephen Hines { 11504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_RET; 11514cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NumOperands = I.getNumOperands(); 11524cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (NumOperands == 0) 11534cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_RET_VOID_ABBREV; 11544cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (NumOperands == 1) { 11554cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 11564cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_RET_VAL_ABBREV; 11574cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 11584cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = NumOperands; i != e; ++i) 11594cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); 11604cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11614cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11624cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11634cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Br: 11644cc499d6e5ec602309501873449c938af61170b2Stephen Hines { 11654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_BR; 11660da7f6c8201b27938d3b9f048d71fd784cd1df9aStephen Hines const BranchInst &II = cast<BranchInst>(I); 11674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getSuccessor(0))); 11684cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (II.isConditional()) { 11694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getSuccessor(1))); 11704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getCondition())); 11714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11724cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11734cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11744cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Switch: 1175dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao { 1176dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao Code = bitc::FUNC_CODE_INST_SWITCH; 11770da7f6c8201b27938d3b9f048d71fd784cd1df9aStephen Hines const SwitchInst &SI = cast<SwitchInst>(I); 1178dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao Vals.push_back(VE.getTypeID(SI.getCondition()->getType())); 1179dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao Vals.push_back(VE.getValueID(SI.getCondition())); 1180dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao Vals.push_back(VE.getValueID(SI.getDefaultDest())); 11810da7f6c8201b27938d3b9f048d71fd784cd1df9aStephen Hines for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end(); 1182dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao i != e; ++i) { 1183c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getValueID(i.getCaseValue())); 1184c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getValueID(i.getCaseSuccessor())); 1185dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao } 1186dbfe3fabb0b82d9c73e4a48a0bc3ebb6a9cda593Shih-wei Liao } 11874cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11884cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::IndirectBr: 11894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INDIRECTBR; 11904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 11914cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 11924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); 11934cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11954cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Invoke: { 11964cc499d6e5ec602309501873449c938af61170b2Stephen Hines const InvokeInst *II = cast<InvokeInst>(&I); 11974cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Value *Callee(II->getCalledValue()); 11984cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(Callee->getType()); 11994cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FTy = cast<FunctionType>(PTy->getElementType()); 12004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INVOKE; 12014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12024cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(II->getAttributes())); 12034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(II->getCallingConv()); 12044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II->getNormalDest())); 12054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II->getUnwindDest())); 12064cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(Callee, InstID, Vals, VE); 12074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12084cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit value #'s for the fixed parameters. 12094cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) 12104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); // fixed param. 12114cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12124cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit type/value pairs for varargs params. 12134cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FTy->isVarArg()) { 12144cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FTy->getNumParams(), e = I.getNumOperands()-3; 12154cc499d6e5ec602309501873449c938af61170b2Stephen Hines i != e; ++i) 12164cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); // vararg 12174cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12184cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12194cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12204cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Unreachable: 12214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_UNREACHABLE; 12224cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_UNREACHABLE_ABBREV; 12234cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12254cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::PHI: { 12264cc499d6e5ec602309501873449c938af61170b2Stephen Hines const PHINode &PN = cast<PHINode>(I); 12274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_PHI; 12284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(PN.getType())); 12294cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = PN.getNumIncomingValues(); i != e; ++i) { 12304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(PN.getIncomingValue(i))); 12314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(PN.getIncomingBlock(i))); 12324cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12334cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12344cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12354cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12364cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Alloca: 12374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_ALLOCA; 12384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); 12394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 12404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // size. 12414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<AllocaInst>(I).getAlignment())+1); 12424cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12444cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Load: 12454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_LOAD; 12464cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr 12474cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_LOAD_ABBREV; 12484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1); 12504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<LoadInst>(I).isVolatile()); 12514cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12524cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Store: 12534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_STORE; 12544cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr 12554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // val. 12564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1); 12574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<StoreInst>(I).isVolatile()); 12584cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12594cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Call: { 12604cc499d6e5ec602309501873449c938af61170b2Stephen Hines const CallInst &CI = cast<CallInst>(I); 12614cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(CI.getCalledValue()->getType()); 12624cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FTy = cast<FunctionType>(PTy->getElementType()); 12634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1264a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Code = FUNC_CODE_INST_CALL_2_7; 12654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(CI.getAttributes())); 12674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall())); 12684cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(CI.getCalledValue(), InstID, Vals, VE); // Callee 12694cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12704cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit value #'s for the fixed parameters. 12714cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) 12724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(CI.getArgOperand(i))); // fixed param. 12734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12744cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit type/value pairs for varargs params. 12754cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FTy->isVarArg()) { 12764cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FTy->getNumParams(), e = CI.getNumArgOperands(); 12774cc499d6e5ec602309501873449c938af61170b2Stephen Hines i != e; ++i) 12784cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(CI.getArgOperand(i), InstID, Vals, VE); // varargs 12794cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12804cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12814cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12824cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::VAArg: 12834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_VAARG; 12844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); // valistty 12854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // valist. 12864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); // restype. 12874cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12884cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12894cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Vals, AbbrevToUse); 12914cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 12924cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 12934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12944cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit names for globals/functions etc. 12954cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteValueSymbolTable(const ValueSymbolTable &VST, 12969937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines const llvm_2_9::ValueEnumerator &VE, 12974cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 12984cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (VST.empty()) return; 12994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 4); 13004cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13014cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: Set up the abbrev, we know how many values there are! 13024cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: We know if the type names can use 7-bit ascii. 13034cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> NameVals; 13044cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13054cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (ValueSymbolTable::const_iterator SI = VST.begin(), SE = VST.end(); 13064cc499d6e5ec602309501873449c938af61170b2Stephen Hines SI != SE; ++SI) { 13074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13084cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueName &Name = *SI; 13094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13104cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Figure out the encoding to use for the name. 13114cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 13124cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isChar6 = true; 13134cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const char *C = Name.getKeyData(), *E = C+Name.getKeyLength(); 13144cc499d6e5ec602309501873449c938af61170b2Stephen Hines C != E; ++C) { 13154cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 13164cc499d6e5ec602309501873449c938af61170b2Stephen Hines isChar6 = BitCodeAbbrevOp::isChar6(*C); 13174cc499d6e5ec602309501873449c938af61170b2Stephen Hines if ((unsigned char)*C & 128) { 13184cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 13194cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; // don't bother scanning the rest. 13204cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13214cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13234cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = VST_ENTRY_8_ABBREV; 13244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13254cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VST_ENTRY: [valueid, namechar x N] 13264cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VST_BBENTRY: [bbid, namechar x N] 13274cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code; 13284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isa<BasicBlock>(SI->getValue())) { 13294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::VST_CODE_BBENTRY; 13304cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 13314cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_BBENTRY_6_ABBREV; 13324cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 13334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::VST_CODE_ENTRY; 13344cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 13354cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_ENTRY_6_ABBREV; 13364cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (is7Bit) 13374cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_ENTRY_7_ABBREV; 13384cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13404cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(VE.getValueID(SI->getValue())); 13414cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const char *P = Name.getKeyData(), 13424cc499d6e5ec602309501873449c938af61170b2Stephen Hines *E = Name.getKeyData()+Name.getKeyLength(); P != E; ++P) 13434cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)*P); 13444cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13454cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 13464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, NameVals, AbbrevToUse); 13474cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 13484cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 13504cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 13514cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13524cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteFunction - Emit a function body to the module stream. 13539937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteFunction(const Function &F, llvm_2_9::ValueEnumerator &VE, 13544cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 13554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4); 13564cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.incorporateFunction(F); 13574cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13584cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 13594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the number of basic blocks, so the reader can create them ahead of 13614cc499d6e5ec602309501873449c938af61170b2Stephen Hines // time. 13624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getBasicBlocks().size()); 13634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DECLAREBLOCKS, Vals); 13644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 13654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13664cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If there are function-local constants, emit them now. 13674cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CstStart, CstEnd; 13684cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.getFunctionConstantRange(CstStart, CstEnd); 13694cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteConstants(CstStart, CstEnd, VE, Stream, false); 13704cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13714cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If there is function-local metadata, emit it now. 13724cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteFunctionLocalMetadata(F, VE, Stream); 13734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13744cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Keep a running idea of what the instruction ID is. 13754cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned InstID = CstEnd; 13764cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13774cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool NeedsMetadataAttachment = false; 13784cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13794cc499d6e5ec602309501873449c938af61170b2Stephen Hines DebugLoc LastDL; 13804cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Finally, emit all the instructions, in order. 13824cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) 13834cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 13844cc499d6e5ec602309501873449c938af61170b2Stephen Hines I != E; ++I) { 13854cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteInstruction(*I, InstID, VE, Stream, Vals); 13864cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13874cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!I->getType()->isVoidTy()) 13884cc499d6e5ec602309501873449c938af61170b2Stephen Hines ++InstID; 13894cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13904cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the instruction has metadata, write a metadata attachment later. 13914cc499d6e5ec602309501873449c938af61170b2Stephen Hines NeedsMetadataAttachment |= I->hasMetadataOtherThanDebugLoc(); 13924cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13934cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the instruction has a debug location, emit it. 13944cc499d6e5ec602309501873449c938af61170b2Stephen Hines DebugLoc DL = I->getDebugLoc(); 13954cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (DL.isUnknown()) { 13964cc499d6e5ec602309501873449c938af61170b2Stephen Hines // nothing todo. 13974cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (DL == LastDL) { 13984cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Just repeat the same debug loc as last time. 13994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC_AGAIN, Vals); 14004cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 14014cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDNode *Scope, *IA; 14024cc499d6e5ec602309501873449c938af61170b2Stephen Hines DL.getScopeAndInlinedAt(Scope, IA, I->getContext()); 14034cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(DL.getLine()); 14054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(DL.getCol()); 1406c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getMetadataOrNullID(Scope)); 1407c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines Vals.push_back(VE.getMetadataOrNullID(IA)); 1408a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Stream.EmitRecord(FUNC_CODE_DEBUG_LOC_2_7, Vals); 14094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 14104cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14114cc499d6e5ec602309501873449c938af61170b2Stephen Hines LastDL = DL; 14124cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14144cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14154cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit names for all the instructions etc. 14164cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream); 14174cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14184cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (NeedsMetadataAttachment) 14194cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMetadataAttachment(F, VE, Stream); 14204cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.purgeFunction(); 14214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 14224cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 14234cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14244cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit blockinfo, which defines the standard abbreviations etc. 14259937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hinesstatic void WriteBlockInfo(const llvm_2_9::ValueEnumerator &VE, 14269937d116e09feb32d46a4c76eca1be6afcd3bed5Stephen Hines BitstreamWriter &Stream) { 14274cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We only want to emit block info records for blocks that have multiple 14284cc499d6e5ec602309501873449c938af61170b2Stephen Hines // instances: CONSTANTS_BLOCK, FUNCTION_BLOCK and VALUE_SYMTAB_BLOCK. Other 14294cc499d6e5ec602309501873449c938af61170b2Stephen Hines // blocks can defined their abbrevs inline. 14304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterBlockInfoBlock(2); 14314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14324cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 8-bit fixed-width VST_ENTRY/VST_BBENTRY strings. 14334cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); 14354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 14384cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_8_ABBREV) 14404cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14414cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14434cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 7-bit fixed width VST_ENTRY strings. 14444cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 14464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 14494cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_7_ABBREV) 14514cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14524cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14534cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 6-bit char6 VST_ENTRY strings. 14544cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 14564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 14594cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_6_ABBREV) 14614cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14624cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14634cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 6-bit char6 VST_BBENTRY strings. 14644cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_BBENTRY)); 14664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 14694cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_BBENTRY_6_ABBREV) 14714cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14724cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14754cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14764cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // SETTYPE abbrev for CONSTANTS_BLOCK. 14774cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_SETTYPE)); 14794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 14804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 14814cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_SETTYPE_ABBREV) 14834cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14844cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14854cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14864cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INTEGER abbrev for CONSTANTS_BLOCK. 14874cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_INTEGER)); 14894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14904cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14914cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_INTEGER_ABBREV) 14924cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14934cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14954cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // CE_CAST abbrev for CONSTANTS_BLOCK. 14964cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CE_CAST)); 14984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // cast opc 14994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // typeid 15004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 15014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // value id 15024cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15034cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 15044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_CE_CAST_Abbrev) 15054cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15074cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // NULL abbrev for CONSTANTS_BLOCK. 15084cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_NULL)); 15104cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 15114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_NULL_Abbrev) 15124cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15144cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15154cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: This should only use space for first class types! 15164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15174cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_LOAD abbrev for FUNCTION_BLOCK. 15184cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15194cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_LOAD)); 15204cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Ptr 15214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 4)); // Align 15224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // volatile 15234cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_LOAD_ABBREV) 15254cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15264cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15274cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_BINOP abbrev for FUNCTION_BLOCK. 15284cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP)); 15304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS 15314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS 15324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15334cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_BINOP_ABBREV) 15354cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15364cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15374cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_BINOP_FLAGS abbrev for FUNCTION_BLOCK. 15384cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP)); 15404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS 15414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS 15424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); // flags 15444cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_BINOP_FLAGS_ABBREV) 15464cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15474cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15484cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_CAST abbrev for FUNCTION_BLOCK. 15494cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_CAST)); 15514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // OpVal 15524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty 15534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 15544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15554cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_CAST_ABBREV) 15574cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15584cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15604cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_RET abbrev for FUNCTION_BLOCK. 15614cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET)); 15634cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_RET_VOID_ABBREV) 15654cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15664cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15674cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_RET abbrev for FUNCTION_BLOCK. 15684cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET)); 15704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ValID 15714cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_RET_VAL_ABBREV) 15734cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15744cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15754cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_UNREACHABLE abbrev for FUNCTION_BLOCK. 15764cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_UNREACHABLE)); 15784cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV) 15804cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15814cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 15844cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 15854cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15864cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteModule - Emit the specified module to the bitstream. 15874cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModule(const Module *M, BitstreamWriter &Stream) { 15884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3); 15894cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15904cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the version number if it is non-zero. 15914cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (CurVersion) { 15924cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 1> Vals; 15934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(CurVersion); 15944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_VERSION, Vals); 15954cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15964cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15974cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Analyze the module, enumerating globals, functions, etc. 1598c706907a8041faaa882f9bd87f1d1c1669023a62Stephen Hines llvm_2_9::ValueEnumerator VE(*M); 15994cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16004cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit blockinfo, which defines the standard abbreviations etc. 16014cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteBlockInfo(VE, Stream); 16024cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16034cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information about parameter attributes. 16044cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteAttributeTable(VE, Stream); 16054cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16064cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information describing all of the types in the module. 16074cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteTypeTable(VE, Stream); 16084cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16094cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit top-level description of module, including target triple, inline asm, 16104cc499d6e5ec602309501873449c938af61170b2Stephen Hines // descriptors for global variables, and function prototype info. 16114cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleInfo(M, VE, Stream); 16124cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16134cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit constants. 16144cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleConstants(VE, Stream); 16154cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16164cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit metadata. 16174cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleMetadata(M, VE, Stream); 16184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16194cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit function bodies. 16204cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) 16214cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!F->isDeclaration()) 16224cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteFunction(*F, VE, Stream); 16234cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16244cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit metadata. 16254cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleMetadataStore(M, Stream); 16264cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16274cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit names for globals/functions etc. 16284cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteValueSymbolTable(M->getValueSymbolTable(), VE, Stream); 16294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 16314cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 16324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16334cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// EmitDarwinBCHeader - If generating a bc file on darwin, we have to emit a 16344cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// header and trailer to make it compatible with the system archiver. To do 16354cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// this we emit the following header, and then emit a trailer that pads the 16364cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// file out to be a multiple of 16 bytes. 16374cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// 16384cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// struct bc_header { 16394cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t Magic; // 0x0B17C0DE 16404cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t Version; // Version, currently always 0. 16414cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t BitcodeOffset; // Offset to traditional bitcode file. 16424cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t BitcodeSize; // Size of traditional bitcode file. 16434cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t CPUType; // CPU specifier. 16444cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// ... potentially more later ... 16454cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// }; 16464cc499d6e5ec602309501873449c938af61170b2Stephen Hinesenum { 16474cc499d6e5ec602309501873449c938af61170b2Stephen Hines DarwinBCSizeFieldOffset = 3*4, // Offset to bitcode_size. 16484cc499d6e5ec602309501873449c938af61170b2Stephen Hines DarwinBCHeaderSize = 5*4 16494cc499d6e5ec602309501873449c938af61170b2Stephen Hines}; 16504cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16510444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hinesstatic void WriteInt32ToBuffer(uint32_t Value, SmallVectorImpl<char> &Buffer, 16520444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines uint32_t &Position) { 16530444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 0] = (unsigned char) (Value >> 0); 16540444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 1] = (unsigned char) (Value >> 8); 16550444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 2] = (unsigned char) (Value >> 16); 16560444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 3] = (unsigned char) (Value >> 24); 16570444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Position += 4; 16580444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines} 16590444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 16600444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hinesstatic void EmitDarwinBCHeaderAndTrailer(SmallVectorImpl<char> &Buffer, 16610444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines const Triple &TT) { 16624cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CPUType = ~0U; 16634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Match x86_64-*, i[3-9]86-*, powerpc-*, powerpc64-*, arm-*, thumb-*, 16654cc499d6e5ec602309501873449c938af61170b2Stephen Hines // armv[0-9]-*, thumbv[0-9]-*, armv5te-*, or armv6t2-*. The CPUType is a magic 16664cc499d6e5ec602309501873449c938af61170b2Stephen Hines // number from /usr/include/mach/machine.h. It is ok to reproduce the 16674cc499d6e5ec602309501873449c938af61170b2Stephen Hines // specific constants here because they are implicitly part of the Darwin ABI. 16684cc499d6e5ec602309501873449c938af61170b2Stephen Hines enum { 16694cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_ARCH_ABI64 = 0x01000000, 16704cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_X86 = 7, 16714cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_ARM = 12, 16724cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_POWERPC = 18 16734cc499d6e5ec602309501873449c938af61170b2Stephen Hines }; 16744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Triple::ArchType Arch = TT.getArch(); 16764cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Arch == Triple::x86_64) 16774cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_X86 | DARWIN_CPU_ARCH_ABI64; 16784cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::x86) 16794cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_X86; 16804cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::ppc) 16814cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_POWERPC; 16824cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::ppc64) 16834cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_POWERPC | DARWIN_CPU_ARCH_ABI64; 16844cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::arm || Arch == Triple::thumb) 16854cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_ARM; 16864cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16874cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Traditional Bitcode starts after header. 16880444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines assert(Buffer.size() >= DarwinBCHeaderSize && 16890444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines "Expected header size to be reserved"); 16904cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned BCOffset = DarwinBCHeaderSize; 16910444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned BCSize = Buffer.size()-DarwinBCHeaderSize; 16924cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16930444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Write the magic and version. 16940444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned Position = 0; 16950444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(0x0B17C0DE , Buffer, Position); 16960444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(0 , Buffer, Position); // Version. 16970444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(BCOffset , Buffer, Position); 16980444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(BCSize , Buffer, Position); 16990444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(CPUType , Buffer, Position); 17004cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17014cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the file is not a multiple of 16 bytes, insert dummy padding. 17020444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines while (Buffer.size() & 15) 17030444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer.push_back(0); 17044cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 17054cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17064cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteBitcodeToFile - Write the specified module to the specified output 17074cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// stream. 17084cc499d6e5ec602309501873449c938af61170b2Stephen Hinesvoid llvm_2_9::WriteBitcodeToFile(const Module *M, raw_ostream &Out) { 17090444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines SmallVector<char, 1024> Buffer; 17104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Buffer.reserve(256*1024); 17114cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17120444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // If this is darwin or another generic macho target, reserve space for the 17130444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // header. 17144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Triple TT(M->getTargetTriple()); 17154cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (TT.isOSDarwin()) 17160444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer.insert(Buffer.begin(), DarwinBCHeaderSize, 0); 17170444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17180444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Emit the module into the buffer. 17190444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines { 17200444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines BitstreamWriter Stream(Buffer); 17210444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17220444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Emit the file header. 17230444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit((unsigned)'B', 8); 17240444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit((unsigned)'C', 8); 17250444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0x0, 4); 17260444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0xC, 4); 17270444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0xE, 4); 17280444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0xD, 4); 17290444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17300444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Emit the module. 17310444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteModule(M, Stream); 17320444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } 17334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17344cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (TT.isOSDarwin()) 17350444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines EmitDarwinBCHeaderAndTrailer(Buffer, TT); 17360444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17370444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Write the generated bitstream to "Out". 17380444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Out.write((char*)&Buffer.front(), Buffer.size()); 17394cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1740