BitcodeWriter.cpp revision 0444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41
14cc499d6e5ec602309501873449c938af61170b2Stephen Hines//===--- Bitcode/Writer/BitcodeWriter.cpp - Bitcode Writer ----------------===// 24cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 34cc499d6e5ec602309501873449c938af61170b2Stephen Hines// The LLVM Compiler Infrastructure 44cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 54cc499d6e5ec602309501873449c938af61170b2Stephen Hines// This file is distributed under the University of Illinois Open Source 64cc499d6e5ec602309501873449c938af61170b2Stephen Hines// License. See LICENSE.TXT for details. 74cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 84cc499d6e5ec602309501873449c938af61170b2Stephen Hines//===----------------------------------------------------------------------===// 94cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 104cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Bitcode writer implementation. 114cc499d6e5ec602309501873449c938af61170b2Stephen Hines// 124cc499d6e5ec602309501873449c938af61170b2Stephen Hines//===----------------------------------------------------------------------===// 134cc499d6e5ec602309501873449c938af61170b2Stephen Hines 144cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "ReaderWriter_2_9.h" 154cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Bitcode/BitstreamWriter.h" 164cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Bitcode/LLVMBitCodes.h" 174cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "ValueEnumerator.h" 184cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Constants.h" 194cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/DerivedTypes.h" 204cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/InlineAsm.h" 214cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Instructions.h" 224cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Module.h" 234cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Operator.h" 244cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/ValueSymbolTable.h" 254cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/ADT/Triple.h" 264cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/ErrorHandling.h" 274cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/MathExtras.h" 284cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/raw_ostream.h" 294cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include "llvm/Support/Program.h" 304cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include <cctype> 314cc499d6e5ec602309501873449c938af61170b2Stephen Hines#include <map> 324cc499d6e5ec602309501873449c938af61170b2Stephen Hinesusing namespace llvm; 334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 34a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines// Redefine older bitcode opcodes for use here. Note that these come from 35a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines// LLVM 2.7 (which is what HC shipped with). 36a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_NODE_2_7 2 37a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_FN_NODE_2_7 3 38a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_NAMED_NODE_2_7 5 39a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define METADATA_ATTACHMENT_2_7 7 40a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define FUNC_CODE_INST_CALL_2_7 22 41a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines#define FUNC_CODE_DEBUG_LOC_2_7 32 42a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines 43ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien// Redefine older bitcode opcodes for use here. Note that these come from 44ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien// LLVM 2.7 - 3.0. 45ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien#define TYPE_BLOCK_ID_OLD_3_0 10 46ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien#define TYPE_SYMTAB_BLOCK_ID_OLD_3_0 13 47ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien#define TYPE_CODE_STRUCT_OLD_3_0 10 48ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien 494cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// These are manifest constants used by the bitcode writer. They do not need to 504cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// be kept in sync with the reader, but need to be consistent within this file. 514cc499d6e5ec602309501873449c938af61170b2Stephen Hinesenum { 524cc499d6e5ec602309501873449c938af61170b2Stephen Hines CurVersion = 0, 534cc499d6e5ec602309501873449c938af61170b2Stephen Hines 544cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VALUE_SYMTAB_BLOCK abbrev id's. 554cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_8_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 564cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_7_ABBREV, 574cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_ENTRY_6_ABBREV, 584cc499d6e5ec602309501873449c938af61170b2Stephen Hines VST_BBENTRY_6_ABBREV, 594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // CONSTANTS_BLOCK abbrev id's. 614cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_SETTYPE_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 624cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_INTEGER_ABBREV, 634cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_CE_CAST_Abbrev, 644cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_NULL_Abbrev, 654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 664cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION_BLOCK abbrev id's. 674cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV, 684cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_BINOP_ABBREV, 694cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_BINOP_FLAGS_ABBREV, 704cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_CAST_ABBREV, 714cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_RET_VOID_ABBREV, 724cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_RET_VAL_ABBREV, 734cc499d6e5ec602309501873449c938af61170b2Stephen Hines FUNCTION_INST_UNREACHABLE_ABBREV 744cc499d6e5ec602309501873449c938af61170b2Stephen Hines}; 754cc499d6e5ec602309501873449c938af61170b2Stephen Hines 764cc499d6e5ec602309501873449c938af61170b2Stephen Hines 774cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned GetEncodedCastOpcode(unsigned Opcode) { 784cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (Opcode) { 794cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown cast instruction!"); 804cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Trunc : return bitc::CAST_TRUNC; 814cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ZExt : return bitc::CAST_ZEXT; 824cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SExt : return bitc::CAST_SEXT; 834cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPToUI : return bitc::CAST_FPTOUI; 844cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPToSI : return bitc::CAST_FPTOSI; 854cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::UIToFP : return bitc::CAST_UITOFP; 864cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SIToFP : return bitc::CAST_SITOFP; 874cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPTrunc : return bitc::CAST_FPTRUNC; 884cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FPExt : return bitc::CAST_FPEXT; 894cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::PtrToInt: return bitc::CAST_PTRTOINT; 904cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::IntToPtr: return bitc::CAST_INTTOPTR; 914cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::BitCast : return bitc::CAST_BITCAST; 924cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 934cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 954cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned GetEncodedBinaryOpcode(unsigned Opcode) { 964cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (Opcode) { 974cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown binary instruction!"); 984cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Add: 994cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FAdd: return bitc::BINOP_ADD; 1004cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Sub: 1014cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FSub: return bitc::BINOP_SUB; 1024cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Mul: 1034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FMul: return bitc::BINOP_MUL; 1044cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::UDiv: return bitc::BINOP_UDIV; 1054cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FDiv: 1064cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SDiv: return bitc::BINOP_SDIV; 1074cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::URem: return bitc::BINOP_UREM; 1084cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FRem: 1094cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::SRem: return bitc::BINOP_SREM; 1104cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Shl: return bitc::BINOP_SHL; 1114cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::LShr: return bitc::BINOP_LSHR; 1124cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::AShr: return bitc::BINOP_ASHR; 1134cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::And: return bitc::BINOP_AND; 1144cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Or: return bitc::BINOP_OR; 1154cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Xor: return bitc::BINOP_XOR; 1164cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1174cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1194cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteStringRecord(unsigned Code, StringRef Str, 1204cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse, BitstreamWriter &Stream) { 1214cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 1224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1234cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Code: [strchar x N] 1244cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 1254cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AbbrevToUse && !BitCodeAbbrevOp::isChar6(Str[i])) 1264cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = 0; 1274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Str[i]); 1284cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1304cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 1314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Vals, AbbrevToUse); 1324cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1344cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit information about parameter attributes. 1354cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteAttributeTable(const ValueEnumerator &VE, 1364cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 1374cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::vector<AttrListPtr> &Attrs = VE.getAttributes(); 1384cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Attrs.empty()) return; 1394cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::PARAMATTR_BLOCK_ID, 3); 1414cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1424cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 1434cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Attrs.size(); i != e; ++i) { 1444cc499d6e5ec602309501873449c938af61170b2Stephen Hines const AttrListPtr &A = Attrs[i]; 1454cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = A.getNumSlots(); i != e; ++i) { 1464cc499d6e5ec602309501873449c938af61170b2Stephen Hines const AttributeWithIndex &PAWI = A.getSlot(i); 1474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(PAWI.Index); 1484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: remove in LLVM 3.0 1504cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Store the alignment in the bitcode as a 16-bit raw value instead of a 1514cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 5-bit log2 encoded value. Shift the bits above the alignment up by 1524cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 11 bits. 1530444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines uint64_t FauxAttr = PAWI.Attrs.Raw() & 0xffff; 1544cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (PAWI.Attrs & Attribute::Alignment) 1550444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines FauxAttr |= (1ull<<16)<< 1560444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines (((PAWI.Attrs & Attribute::Alignment).Raw()-1) >> 16); 1570444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines FauxAttr |= (PAWI.Attrs.Raw() & (0x3FFull << 21)) << 11; 1584cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(FauxAttr); 1604cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1614cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::PARAMATTR_CODE_ENTRY, Record); 1634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 1644cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 1674cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1694cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteTypeSymbolTable(const ValueEnumerator &VE, 1704cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 1714cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::TypeList &TypeList = VE.getTypes(); 172ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien Stream.EnterSubblock(TYPE_SYMTAB_BLOCK_ID_OLD_3_0, 3); 1734cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1744cc499d6e5ec602309501873449c938af61170b2Stephen Hines // 7-bit fixed width VST_CODE_ENTRY strings. 1754cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 1764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 1774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 1794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 1804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 1814cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned V7Abbrev = Stream.EmitAbbrev(Abbv); 1824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1834cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> NameVals; 1844cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1854cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { 1864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *T = TypeList[i]; 1874cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1884cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (T->getTypeID()) { 1894cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::StructTyID: { 1904cc499d6e5ec602309501873449c938af61170b2Stephen Hines StructType *ST = cast<StructType>(T); 1919207a2e495c8363606861e4f034504ec5c153dabLogan Chien if (ST->isLiteral()) { 1924cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Skip anonymous struct definitions in type symbol table 1934cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME(srhines) 1944cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 1954cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 1964cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1974cc499d6e5ec602309501873449c938af61170b2Stephen Hines // TST_ENTRY: [typeid, namechar x N] 1984cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(i); 1994cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2004cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &Str = ST->getName(); 2014cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 2024cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 2034cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)Str[i]); 2044cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Str[i] & 128) 2054cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 2064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2084cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 2094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::VST_CODE_ENTRY, NameVals, is7Bit ? V7Abbrev : 0); 2104cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 2114cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2124cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 2134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2144cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: break; 2154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2164cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2174cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2184cc499d6e5ec602309501873449c938af61170b2Stephen Hines#if 0 2194cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end(); 2204cc499d6e5ec602309501873449c938af61170b2Stephen Hines TI != TE; ++TI) { 2214cc499d6e5ec602309501873449c938af61170b2Stephen Hines // TST_ENTRY: [typeid, namechar x N] 2224cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(VE.getTypeID(TI->second)); 2234cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2244cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &Str = TI->first; 2254cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 2264cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) { 2274cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)Str[i]); 2284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Str[i] & 128) 2294cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 2304cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2314cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2324cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 2334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::VST_CODE_ENTRY, NameVals, is7Bit ? V7Abbrev : 0); 2344cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 2354cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 2364cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 2374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 2394cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 2404cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2414cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteTypeTable - Write out the type table for a module. 2424cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteTypeTable(const ValueEnumerator &VE, BitstreamWriter &Stream) { 2434cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::TypeList &TypeList = VE.getTypes(); 2444cc499d6e5ec602309501873449c938af61170b2Stephen Hines 245ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien Stream.EnterSubblock(TYPE_BLOCK_ID_OLD_3_0, 4 /*count from # abbrevs */); 2464cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> TypeVals; 2474cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2484cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_POINTER. 2494cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 2504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_POINTER)); 2514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); // Addrspace = 0 2544cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned PtrAbbrev = Stream.EmitAbbrev(Abbv); 2554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_FUNCTION. 2574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2588ec3bc862ac51f49e06bc465a6eb51871ce9d5daStephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_FUNCTION_OLD)); 2594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isvararg 2604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); // FIXME: DEAD value, remove in LLVM 3.0 2614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2644cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned FunctionAbbrev = Stream.EmitAbbrev(Abbv); 2654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2664cc499d6e5ec602309501873449c938af61170b2Stephen Hines#if 0 2674cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT_ANON. 2684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_ANON)); 2704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2744cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructAnonAbbrev = Stream.EmitAbbrev(Abbv); 2754cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2764cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT_NAME. 2774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_NAME)); 2794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 2814cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructNameAbbrev = Stream.EmitAbbrev(Abbv); 2824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2834cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT_NAMED. 2844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 2854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT_NAMED)); 2864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 2904cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructNamedAbbrev = Stream.EmitAbbrev(Abbv); 2914cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 2924cc499d6e5ec602309501873449c938af61170b2Stephen Hines 2934cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_STRUCT. 2944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 295ac4e18584b8768b3f68535fa5f16232e03974323Logan Chien Abbv->Add(BitCodeAbbrevOp(TYPE_CODE_STRUCT_OLD_3_0)); 2964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ispacked 2974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 2984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 3004cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned StructAbbrev = Stream.EmitAbbrev(Abbv); 3014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3024cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for TYPE_CODE_ARRAY. 3034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 3044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_ARRAY)); 3054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // size 3064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3074cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 3084cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned ArrayAbbrev = Stream.EmitAbbrev(Abbv); 3094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3104cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit an entry count so the reader can reserve space. 3114cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(TypeList.size()); 3124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::TYPE_CODE_NUMENTRY, TypeVals); 3134cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.clear(); 3144cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3154cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Loop over all of the types, emitting each in turn. 3164cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = TypeList.size(); i != e; ++i) { 3174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *T = TypeList[i]; 3184cc499d6e5ec602309501873449c938af61170b2Stephen Hines int AbbrevToUse = 0; 3194cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = 0; 3204cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3214cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (T->getTypeID()) { 3224cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Unknown type!"); 3234cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::VoidTyID: Code = bitc::TYPE_CODE_VOID; break; 3244cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FloatTyID: Code = bitc::TYPE_CODE_FLOAT; break; 3254cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::DoubleTyID: Code = bitc::TYPE_CODE_DOUBLE; break; 3264cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::X86_FP80TyID: Code = bitc::TYPE_CODE_X86_FP80; break; 3274cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FP128TyID: Code = bitc::TYPE_CODE_FP128; break; 3284cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::PPC_FP128TyID: Code = bitc::TYPE_CODE_PPC_FP128; break; 3294cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::LabelTyID: Code = bitc::TYPE_CODE_LABEL; break; 3304cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::MetadataTyID: Code = bitc::TYPE_CODE_METADATA; break; 3314cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::X86_MMXTyID: Code = bitc::TYPE_CODE_X86_MMX; break; 3324cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::IntegerTyID: 3334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // INTEGER: [width] 3344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_INTEGER; 3354cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(cast<IntegerType>(T)->getBitWidth()); 3364cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3374cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::PointerTyID: { 3384cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(T); 3394cc499d6e5ec602309501873449c938af61170b2Stephen Hines // POINTER: [pointee type, address space] 3404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_POINTER; 3414cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(PTy->getElementType())); 3424cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AddressSpace = PTy->getAddressSpace(); 3434cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(AddressSpace); 3444cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AddressSpace == 0) AbbrevToUse = PtrAbbrev; 3454cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3464cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3474cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::FunctionTyID: { 3484cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FT = cast<FunctionType>(T); 3494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION: [isvararg, attrid, retty, paramty x N] 3508ec3bc862ac51f49e06bc465a6eb51871ce9d5daStephen Hines Code = bitc::TYPE_CODE_FUNCTION_OLD; 3514cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(FT->isVarArg()); 3524cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(0); // FIXME: DEAD: remove in llvm 3.0 3534cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(FT->getReturnType())); 3544cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) 3554cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(FT->getParamType(i))); 3564cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FunctionAbbrev; 3574cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3584cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3594cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::StructTyID: { 3604cc499d6e5ec602309501873449c938af61170b2Stephen Hines StructType *ST = cast<StructType>(T); 3614cc499d6e5ec602309501873449c938af61170b2Stephen Hines // STRUCT: [ispacked, eltty x N] 3624cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(ST->isPacked()); 3634cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Output all of the element types. 3644cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (StructType::element_iterator I = ST->element_begin(), 3654cc499d6e5ec602309501873449c938af61170b2Stephen Hines E = ST->element_end(); I != E; ++I) 3664cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(*I)); 3674cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = StructAbbrev; 3684cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3694cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3704cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::ArrayTyID: { 3714cc499d6e5ec602309501873449c938af61170b2Stephen Hines ArrayType *AT = cast<ArrayType>(T); 3724cc499d6e5ec602309501873449c938af61170b2Stephen Hines // ARRAY: [numelts, eltty] 3734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_ARRAY; 3744cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(AT->getNumElements()); 3754cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(AT->getElementType())); 3764cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = ArrayAbbrev; 3774cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3784cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3794cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Type::VectorTyID: { 3804cc499d6e5ec602309501873449c938af61170b2Stephen Hines VectorType *VT = cast<VectorType>(T); 3814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VECTOR [numelts, eltty] 3824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::TYPE_CODE_VECTOR; 3834cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VT->getNumElements()); 3844cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.push_back(VE.getTypeID(VT->getElementType())); 3854cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 3864cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3874cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3884cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3894cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 3904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, TypeVals, AbbrevToUse); 3914cc499d6e5ec602309501873449c938af61170b2Stephen Hines TypeVals.clear(); 3924cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 3934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 3954cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3964cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteTypeSymbolTable(VE, Stream); 3974cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 3984cc499d6e5ec602309501873449c938af61170b2Stephen Hines 3994cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned getEncodedLinkage(const GlobalValue *GV) { 4004cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (GV->getLinkage()) { 4014cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Invalid linkage!"); 4024cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ExternalLinkage: return 0; 4034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::WeakAnyLinkage: return 1; 4044cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::AppendingLinkage: return 2; 4054cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::InternalLinkage: return 3; 4064cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkOnceAnyLinkage: return 4; 4074cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DLLImportLinkage: return 5; 4084cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DLLExportLinkage: return 6; 4094cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ExternalWeakLinkage: return 7; 4104cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::CommonLinkage: return 8; 4114cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::PrivateLinkage: return 9; 4124cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::WeakODRLinkage: return 10; 4134cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkOnceODRLinkage: return 11; 4144cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::AvailableExternallyLinkage: return 12; 4154cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkerPrivateLinkage: return 13; 4164cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkerPrivateWeakLinkage: return 14; 4174cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::LinkerPrivateWeakDefAutoLinkage: return 15; 4184cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4194cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 4204cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4214cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic unsigned getEncodedVisibility(const GlobalValue *GV) { 4224cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (GV->getVisibility()) { 4234cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: llvm_unreachable("Invalid visibility!"); 4244cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::DefaultVisibility: return 0; 4254cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::HiddenVisibility: return 1; 4264cc499d6e5ec602309501873449c938af61170b2Stephen Hines case GlobalValue::ProtectedVisibility: return 2; 4274cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4284cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 4294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4304cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit top-level description of module, including target triple, inline asm, 4314cc499d6e5ec602309501873449c938af61170b2Stephen Hines// descriptors for global variables, and function prototype info. 4324cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleInfo(const Module *M, const ValueEnumerator &VE, 4334cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 4344cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the list of dependent libraries for the Module. 4354cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::lib_iterator I = M->lib_begin(), E = M->lib_end(); I != E; ++I) 4364cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_DEPLIB, *I, 0/*TODO*/, Stream); 4374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4384cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit various pieces of data attached to a module. 4394cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getTargetTriple().empty()) 4404cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_TRIPLE, M->getTargetTriple(), 4414cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4424cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getDataLayout().empty()) 4434cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_DATALAYOUT, M->getDataLayout(), 4444cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4454cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->getModuleInlineAsm().empty()) 4464cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_ASM, M->getModuleInlineAsm(), 4474cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4484cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information about sections and GC, computing how many there are. Also 4504cc499d6e5ec602309501873449c938af61170b2Stephen Hines // compute the maximum alignment value. 4514cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::map<std::string, unsigned> SectionMap; 4524cc499d6e5ec602309501873449c938af61170b2Stephen Hines std::map<std::string, unsigned> GCMap; 4534cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxAlignment = 0; 4544cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxGlobalType = 0; 4554cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end(); 4564cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV != E; ++GV) { 4574cc499d6e5ec602309501873449c938af61170b2Stephen Hines MaxAlignment = std::max(MaxAlignment, GV->getAlignment()); 4584cc499d6e5ec602309501873449c938af61170b2Stephen Hines MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV->getType())); 4594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4604cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!GV->hasSection()) continue; 4614cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Give section names unique ID's. 4624cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned &Entry = SectionMap[GV->getSection()]; 4634cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Entry != 0) continue; 4644cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, GV->getSection(), 4654cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = SectionMap.size(); 4674cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4684cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) { 4694cc499d6e5ec602309501873449c938af61170b2Stephen Hines MaxAlignment = std::max(MaxAlignment, F->getAlignment()); 4704cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (F->hasSection()) { 4714cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Give section names unique ID's. 4724cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned &Entry = SectionMap[F->getSection()]; 4734cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!Entry) { 4744cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F->getSection(), 4754cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = SectionMap.size(); 4774cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4784cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4794cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (F->hasGC()) { 4804cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Same for GC names. 4814cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned &Entry = GCMap[F->getGC()]; 4824cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!Entry) { 4834cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteStringRecord(bitc::MODULE_CODE_GCNAME, F->getGC(), 4844cc499d6e5ec602309501873449c938af61170b2Stephen Hines 0/*TODO*/, Stream); 4854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Entry = GCMap.size(); 4864cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4874cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4884cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 4894cc499d6e5ec602309501873449c938af61170b2Stephen Hines 4904cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit abbrev for globals, now that we know # sections and max alignment. 4914cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned SimpleGVarAbbrev = 0; 4924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!M->global_empty()) { 4934cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add an abbrev for common globals with no visibility or thread localness. 4944cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 4954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::MODULE_CODE_GLOBALVAR)); 4964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(MaxGlobalType+1))); 4984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constant. 4994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer. 5004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // Linkage. 5014cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (MaxAlignment == 0) // Alignment. 5024cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); 5034cc499d6e5ec602309501873449c938af61170b2Stephen Hines else { 5044cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MaxEncAlignment = Log2_32(MaxAlignment)+1; 5054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 5064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(MaxEncAlignment+1))); 5074cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5084cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (SectionMap.empty()) // Section. 5094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(0)); 5104cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 5114cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 5124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(SectionMap.size()+1))); 5134cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Don't bother emitting vis + thread local. 5144cc499d6e5ec602309501873449c938af61170b2Stephen Hines SimpleGVarAbbrev = Stream.EmitAbbrev(Abbv); 5154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5174cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the global variable information. 5184cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 5194cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end(); 5204cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV != E; ++GV) { 5214cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5234cc499d6e5ec602309501873449c938af61170b2Stephen Hines // GLOBALVAR: [type, isconst, initid, 5244cc499d6e5ec602309501873449c938af61170b2Stephen Hines // linkage, alignment, section, visibility, threadlocal, 5254cc499d6e5ec602309501873449c938af61170b2Stephen Hines // unnamed_addr] 5264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(GV->getType())); 5274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->isConstant()); 5284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->isDeclaration() ? 0 : 5294cc499d6e5ec602309501873449c938af61170b2Stephen Hines (VE.getValueID(GV->getInitializer()) + 1)); 5304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(GV)); 5314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(GV->getAlignment())+1); 5324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->hasSection() ? SectionMap[GV->getSection()] : 0); 5334cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (GV->isThreadLocal() || 5344cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV->getVisibility() != GlobalValue::DefaultVisibility || 5354cc499d6e5ec602309501873449c938af61170b2Stephen Hines GV->hasUnnamedAddr()) { 5364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(GV)); 5374cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->isThreadLocal()); 5384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GV->hasUnnamedAddr()); 5394cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 5404cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = SimpleGVarAbbrev; 5414cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_GLOBALVAR, Vals, AbbrevToUse); 5444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5454cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5464cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5474cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the function proto information. 5484cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) { 5494cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FUNCTION: [type, callingconv, isproto, paramattr, 5504cc499d6e5ec602309501873449c938af61170b2Stephen Hines // linkage, alignment, section, visibility, gc, unnamed_addr] 5514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(F->getType())); 5524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->getCallingConv()); 5534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->isDeclaration()); 5544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(F)); 5554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(F->getAttributes())); 5564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(F->getAlignment())+1); 5574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->hasSection() ? SectionMap[F->getSection()] : 0); 5584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(F)); 5594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->hasGC() ? GCMap[F->getGC()] : 0); 5604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(F->hasUnnamedAddr()); 5614cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5624cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_FUNCTION, Vals, AbbrevToUse); 5644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5654cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5674cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the alias information. 5684cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_alias_iterator AI = M->alias_begin(), E = M->alias_end(); 5694cc499d6e5ec602309501873449c938af61170b2Stephen Hines AI != E; ++AI) { 5704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(AI->getType())); 5714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(AI->getAliasee())); 5724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedLinkage(AI)); 5734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(getEncodedVisibility(AI)); 5744cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 5754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_ALIAS, Vals, AbbrevToUse); 5764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 5774cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5784cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5794cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5804cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic uint64_t GetOptimizationFlags(const Value *V) { 5814cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = 0; 5824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5834cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const OverflowingBinaryOperator *OBO = 5844cc499d6e5ec602309501873449c938af61170b2Stephen Hines dyn_cast<OverflowingBinaryOperator>(V)) { 5854cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (OBO->hasNoSignedWrap()) 5864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::OBO_NO_SIGNED_WRAP; 5874cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (OBO->hasNoUnsignedWrap()) 5884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::OBO_NO_UNSIGNED_WRAP; 5894cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const PossiblyExactOperator *PEO = 5904cc499d6e5ec602309501873449c938af61170b2Stephen Hines dyn_cast<PossiblyExactOperator>(V)) { 5914cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (PEO->isExact()) 5924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Flags |= 1 << bitc::PEO_EXACT; 5934cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 5944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5954cc499d6e5ec602309501873449c938af61170b2Stephen Hines return Flags; 5964cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 5974cc499d6e5ec602309501873449c938af61170b2Stephen Hines 5984cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteMDNode(const MDNode *N, 5994cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 6004cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream, 6014cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> &Record) { 6024cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 6034cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (N->getOperand(i)) { 6044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(N->getOperand(i)->getType())); 6054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(N->getOperand(i))); 6064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 6074cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(Type::getVoidTy(N->getContext()))); 6084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(0); 6094cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6104cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 611a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines unsigned MDCode = N->isFunctionLocal() ? METADATA_FN_NODE_2_7 : 612a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines METADATA_NODE_2_7; 6134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(MDCode, Record, 0); 6144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6154cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 6164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6174cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleMetadata(const Module *M, 6184cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 6194cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 6204cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::ValueList &Vals = VE.getMDValues(); 6214cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool StartedMetadataBlock = false; 6224cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned MDSAbbrev = 0; 6234cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 6244cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) { 6254cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6264cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const MDNode *N = dyn_cast<MDNode>(Vals[i].first)) { 6274cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!N->isFunctionLocal() || !N->getFunction()) { 6284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6304cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6314cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6324cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMDNode(N, VE, Stream, Record); 6334cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6344cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const MDString *MDS = dyn_cast<MDString>(Vals[i].first)) { 6354cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6384cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for METADATA_STRING. 6394cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 6404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_STRING)); 6414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 6424cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 6434cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDSAbbrev = Stream.EmitAbbrev(Abbv); 6444cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6454cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6464cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6474cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Code: [strchar x N] 6484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.append(MDS->begin(), MDS->end()); 6494cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6504cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 6514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev); 6524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6534cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6544cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6554cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6564cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write named metadata. 6574cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_named_metadata_iterator I = M->named_metadata_begin(), 6584cc499d6e5ec602309501873449c938af61170b2Stephen Hines E = M->named_metadata_end(); I != E; ++I) { 6594cc499d6e5ec602309501873449c938af61170b2Stephen Hines const NamedMDNode *NMD = I; 6604cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6624cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6634cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6644cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6654cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write name. 6664cc499d6e5ec602309501873449c938af61170b2Stephen Hines StringRef Str = NMD->getName(); 6674cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Str.size(); i != e; ++i) 6684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(Str[i]); 6694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_NAME, Record, 0/*TODO*/); 6704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6714cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6724cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write named metadata operands. 6734cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) 6744cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(NMD->getOperand(i))); 675a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Stream.EmitRecord(METADATA_NAMED_NODE_2_7, Record, 0); 6764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 6774cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6784cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6794cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (StartedMetadataBlock) 6804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 6814cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 6824cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6834cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteFunctionLocalMetadata(const Function &F, 6844cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 6854cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 6864cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool StartedMetadataBlock = false; 6874cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 6884cc499d6e5ec602309501873449c938af61170b2Stephen Hines const SmallVector<const MDNode *, 8> &Vals = VE.getFunctionLocalMDValues(); 6894cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) 6904cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const MDNode *N = Vals[i]) 6914cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (N->isFunctionLocal() && N->getFunction() == &F) { 6924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!StartedMetadataBlock) { 6934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 6944cc499d6e5ec602309501873449c938af61170b2Stephen Hines StartedMetadataBlock = true; 6954cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6964cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMDNode(N, VE, Stream, Record); 6974cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 6984cc499d6e5ec602309501873449c938af61170b2Stephen Hines 6994cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (StartedMetadataBlock) 7004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7014cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7024cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7034cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteMetadataAttachment(const Function &F, 7044cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 7054cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 7064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_ATTACHMENT_ID, 3); 7074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7084cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 7094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7104cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write metadata attachments 7114cc499d6e5ec602309501873449c938af61170b2Stephen Hines // METADATA_ATTACHMENT - [m x [value, [n x [id, mdnode]]] 7124cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<std::pair<unsigned, MDNode*>, 4> MDs; 7134cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7144cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) 7154cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 7164cc499d6e5ec602309501873449c938af61170b2Stephen Hines I != E; ++I) { 7174cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDs.clear(); 7184cc499d6e5ec602309501873449c938af61170b2Stephen Hines I->getAllMetadataOtherThanDebugLoc(MDs); 7194cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7204cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If no metadata, ignore instruction. 7214cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (MDs.empty()) continue; 7224cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getInstructionID(I)); 7244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7254cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = MDs.size(); i != e; ++i) { 7264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(MDs[i].first); 7274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(MDs[i].second)); 7284cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 729a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Stream.EmitRecord(METADATA_ATTACHMENT_2_7, Record, 0); 7304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7314cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7344cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7354cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7364cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleMetadataStore(const Module *M, BitstreamWriter &Stream) { 7374cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 7384cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7394cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Write metadata kinds 7404cc499d6e5ec602309501873449c938af61170b2Stephen Hines // METADATA_KIND - [n x [id, name]] 7414cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<StringRef, 4> Names; 7424cc499d6e5ec602309501873449c938af61170b2Stephen Hines M->getMDKindNames(Names); 7434cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7444cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Names.empty()) return; 7454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3); 7474cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7484cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned MDKindID = 0, e = Names.size(); MDKindID != e; ++MDKindID) { 7494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(MDKindID); 7504cc499d6e5ec602309501873449c938af61170b2Stephen Hines StringRef KName = Names[MDKindID]; 7514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.append(KName.begin(), KName.end()); 7524cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::METADATA_KIND, Record, 0); 7544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 7554cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7564cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 7584cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 7594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7604cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteConstants(unsigned FirstVal, unsigned LastVal, 7614cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 7624cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream, bool isGlobal) { 7634cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FirstVal == LastVal) return; 7644cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::CONSTANTS_BLOCK_ID, 4); 7664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7674cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AggregateAbbrev = 0; 7684cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned String8Abbrev = 0; 7694cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CString7Abbrev = 0; 7704cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CString6Abbrev = 0; 7714cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is a constant pool for the module, emit module-specific abbrevs. 7724cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isGlobal) { 7734cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_AGGREGATE. 7744cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 7754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_AGGREGATE)); 7764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, Log2_32_Ceil(LastVal+1))); 7784cc499d6e5ec602309501873449c938af61170b2Stephen Hines AggregateAbbrev = Stream.EmitAbbrev(Abbv); 7794cc499d6e5ec602309501873449c938af61170b2Stephen Hines 7804cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_STRING. 7814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_STRING)); 7834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 7854cc499d6e5ec602309501873449c938af61170b2Stephen Hines String8Abbrev = Stream.EmitAbbrev(Abbv); 7864cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_CSTRING. 7874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING)); 7894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 7914cc499d6e5ec602309501873449c938af61170b2Stephen Hines CString7Abbrev = Stream.EmitAbbrev(Abbv); 7924cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Abbrev for CST_CODE_CSTRING. 7934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv = new BitCodeAbbrev(); 7944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING)); 7954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 7964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 7974cc499d6e5ec602309501873449c938af61170b2Stephen Hines CString6Abbrev = Stream.EmitAbbrev(Abbv); 7984cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 7994cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8004cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<uint64_t, 64> Record; 8014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8024cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::ValueList &Vals = VE.getValues(); 8034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *LastTy = 0; 8044cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FirstVal; i != LastVal; ++i) { 8054cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Value *V = Vals[i].first; 8064cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If we need to switch types, do so now. 8074cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (V->getType() != LastTy) { 8084cc499d6e5ec602309501873449c938af61170b2Stephen Hines LastTy = V->getType(); 8094cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(LastTy)); 8104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::CST_CODE_SETTYPE, Record, 8114cc499d6e5ec602309501873449c938af61170b2Stephen Hines CONSTANTS_SETTYPE_ABBREV); 8124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 8134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8144cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8154cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) { 8164cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(unsigned(IA->hasSideEffects()) | 8174cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned(IA->isAlignStack()) << 1); 8184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8194cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add the asm string. 8204cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &AsmStr = IA->getAsmString(); 8214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(AsmStr.size()); 8224cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = AsmStr.size(); i != e; ++i) 8234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(AsmStr[i]); 8244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 8254cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Add the constraint string. 8264cc499d6e5ec602309501873449c938af61170b2Stephen Hines const std::string &ConstraintStr = IA->getConstraintString(); 8274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(ConstraintStr.size()); 8284cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = ConstraintStr.size(); i != e; ++i) 8294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(ConstraintStr[i]); 8304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::CST_CODE_INLINEASM, Record); 8314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 8324cc499d6e5ec602309501873449c938af61170b2Stephen Hines continue; 8334cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8344cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Constant *C = cast<Constant>(V); 8354cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = -1U; 8364cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 8374cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (C->isNullValue()) { 8384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_NULL; 8394cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (isa<UndefValue>(C)) { 8404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_UNDEF; 8414cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantInt *IV = dyn_cast<ConstantInt>(C)) { 8424cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (IV->getBitWidth() <= 64) { 8434cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t V = IV->getSExtValue(); 8444cc499d6e5ec602309501873449c938af61170b2Stephen Hines if ((int64_t)V >= 0) 8454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V << 1); 8464cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 8474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((-V << 1) | 1); 8484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_INTEGER; 8494cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CONSTANTS_INTEGER_ABBREV; 8504cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { // Wide integers, > 64 bits in size. 8514cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We have an arbitrary precision integer value to write whose 8524cc499d6e5ec602309501873449c938af61170b2Stephen Hines // bit width is > 64. However, in canonical unsigned integer 8534cc499d6e5ec602309501873449c938af61170b2Stephen Hines // format it is likely that the high bits are going to be zero. 8544cc499d6e5ec602309501873449c938af61170b2Stephen Hines // So, we only write the number of active words. 8554cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NWords = IV->getValue().getActiveWords(); 8564cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *RawWords = IV->getValue().getRawData(); 8574cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0; i != NWords; ++i) { 8584cc499d6e5ec602309501873449c938af61170b2Stephen Hines int64_t V = RawWords[i]; 8594cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (V >= 0) 8604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V << 1); 8614cc499d6e5ec602309501873449c938af61170b2Stephen Hines else 8624cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((-V << 1) | 1); 8634cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8644cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_WIDE_INTEGER; 8654cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8664cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) { 8674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_FLOAT; 8684cc499d6e5ec602309501873449c938af61170b2Stephen Hines Type *Ty = CFP->getType(); 8694cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Ty->isFloatTy() || Ty->isDoubleTy()) { 8704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(CFP->getValueAPF().bitcastToAPInt().getZExtValue()); 8714cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (Ty->isX86_FP80Ty()) { 8724cc499d6e5ec602309501873449c938af61170b2Stephen Hines // api needed to prevent premature destruction 8734cc499d6e5ec602309501873449c938af61170b2Stephen Hines // bits are not in the same order as a normal i80 APInt, compensate. 8744cc499d6e5ec602309501873449c938af61170b2Stephen Hines APInt api = CFP->getValueAPF().bitcastToAPInt(); 8754cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *p = api.getRawData(); 8764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back((p[1] << 48) | (p[0] >> 16)); 8774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[0] & 0xffffLL); 8784cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (Ty->isFP128Ty() || Ty->isPPC_FP128Ty()) { 8794cc499d6e5ec602309501873449c938af61170b2Stephen Hines APInt api = CFP->getValueAPF().bitcastToAPInt(); 8804cc499d6e5ec602309501873449c938af61170b2Stephen Hines const uint64_t *p = api.getRawData(); 8814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[0]); 8824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(p[1]); 8834cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 8844cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert (0 && "Unknown FP type!"); 8854cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8860444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else if (isa<ConstantDataSequential>(C) && 8870444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines cast<ConstantDataSequential>(C)->isString()) { 8880444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines const ConstantDataSequential *Str = cast<ConstantDataSequential>(C); 8894cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit constant strings specially. 8900444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned NumElts = Str->getNumElements(); 8914cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If this is a null-terminated string, use the denser CSTRING encoding. 8920444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines if (Str->isCString()) { 8934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CSTRING; 8940444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines --NumElts; // Don't encode the null, which isn't allowed by char6. 8954cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 8964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_STRING; 8974cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = String8Abbrev; 8984cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 8994cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isCStr7 = Code == bitc::CST_CODE_CSTRING; 9004cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isCStrChar6 = Code == bitc::CST_CODE_CSTRING; 9010444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines for (unsigned i = 0; i != NumElts; ++i) { 9020444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned char V = Str->getElementAsInteger(i); 9034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(V); 9044cc499d6e5ec602309501873449c938af61170b2Stephen Hines isCStr7 &= (V & 128) == 0; 9054cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isCStrChar6) 9064cc499d6e5ec602309501873449c938af61170b2Stephen Hines isCStrChar6 = BitCodeAbbrevOp::isChar6(V); 9074cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9080444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 9094cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isCStrChar6) 9104cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CString6Abbrev; 9114cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (isCStr7) 9124cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CString7Abbrev; 9130444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else if (const ConstantDataSequential *CDS = 9140444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines dyn_cast<ConstantDataSequential>(C)) { 9150444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Code = bitc::CST_CODE_DATA; 9160444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Type *EltTy = CDS->getType()->getElementType(); 9170444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines if (isa<IntegerType>(EltTy)) { 9180444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) 9190444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Record.push_back(CDS->getElementAsInteger(i)); 9200444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else if (EltTy->isFloatTy()) { 9210444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) { 9220444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines union { float F; uint32_t I; }; 9230444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines F = CDS->getElementAsFloat(i); 9240444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Record.push_back(I); 9250444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } 9260444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else { 9270444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines assert(EltTy->isDoubleTy() && "Unknown ConstantData element type"); 9280444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) { 9290444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines union { double F; uint64_t I; }; 9300444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines F = CDS->getElementAsDouble(i); 9310444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Record.push_back(I); 9320444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } 9330444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } 9340444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } else if (isa<ConstantArray>(C) || isa<ConstantStruct>(C) || 9350444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines isa<ConstantVector>(C)) { 9364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_AGGREGATE; 9374cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = C->getNumOperands(); i != e; ++i) 9384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(i))); 9394cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = AggregateAbbrev; 9404cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) { 9414cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (CE->getOpcode()) { 9424cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: 9434cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Instruction::isCast(CE->getOpcode())) { 9444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_CAST; 9454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(GetEncodedCastOpcode(CE->getOpcode())); 9464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9484cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = CONSTANTS_CE_CAST_Abbrev; 9494cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9504cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert(CE->getNumOperands() == 2 && "Unknown constant expr!"); 9514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_BINOP; 9524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(GetEncodedBinaryOpcode(CE->getOpcode())); 9534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9544cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9554cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = GetOptimizationFlags(CE); 9564cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Flags != 0) 9574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(Flags); 9584cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9594cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9604cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::GetElementPtr: 9614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_GEP; 9624cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (cast<GEPOperator>(C)->isInBounds()) 9634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_INBOUNDS_GEP; 9644cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) { 9654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(i)->getType())); 9664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(i))); 9674cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9684cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9694cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Select: 9704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SELECT; 9714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9744cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9754cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractElement: 9764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_EXTRACTELT; 9774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9804cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9814cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertElement: 9824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_INSERTELT; 9834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 9854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 9864cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 9874cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ShuffleVector: 9884cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the return type and argument types are the same, this is a 9894cc499d6e5ec602309501873449c938af61170b2Stephen Hines // standard shufflevector instruction. If the types are different, 9904cc499d6e5ec602309501873449c938af61170b2Stephen Hines // then the shuffle is widening or truncating the input vectors, and 9914cc499d6e5ec602309501873449c938af61170b2Stephen Hines // the argument type must also be encoded. 9924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (C->getType() == C->getOperand(0)->getType()) { 9934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SHUFFLEVEC; 9944cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 9954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_SHUFVEC_EX; 9964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 9974cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 9984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 9994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 10004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(2))); 10014cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10024cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ICmp: 10034cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FCmp: 10044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_CE_CMP; 10054cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(C->getOperand(0)->getType())); 10064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(0))); 10074cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(C->getOperand(1))); 10084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(CE->getPredicate()); 10094cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10104cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10114cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(C)) { 10124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::CST_CODE_BLOCKADDRESS; 10134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getTypeID(BA->getFunction()->getType())); 10144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getValueID(BA->getFunction())); 10154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.push_back(VE.getGlobalBasicBlockID(BA->getBasicBlock())); 10164cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 10174cc499d6e5ec602309501873449c938af61170b2Stephen Hines#ifndef NDEBUG 10184cc499d6e5ec602309501873449c938af61170b2Stephen Hines C->dump(); 10194cc499d6e5ec602309501873449c938af61170b2Stephen Hines#endif 10204cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unknown constant!"); 10214cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Record, AbbrevToUse); 10234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Record.clear(); 10244cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10254cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10264cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 10274cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10284cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10294cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModuleConstants(const ValueEnumerator &VE, 10304cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 10314cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator::ValueList &Vals = VE.getValues(); 10324cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10334cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Find the first constant to emit, which is the first non-globalvalue value. 10344cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We know globalvalues have been emitted by WriteModuleInfo. 10354cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = Vals.size(); i != e; ++i) { 10364cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!isa<GlobalValue>(Vals[i].first)) { 10374cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteConstants(i, Vals.size(), VE, Stream, true); 10384cc499d6e5ec602309501873449c938af61170b2Stephen Hines return; 10394cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10404cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10414cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10434cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// PushValueAndType - The file has to encode both the value and type id for 10444cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// many values, because we need to know what type to create for forward 10454cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// references. However, most operands are not forward references, so this type 10464cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// field is not needed. 10474cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// 10484cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// This function adds V's value ID to Vals. If the value ID is higher than the 10494cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// instruction ID, then it is a forward reference, and it also includes the 10504cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// type ID. 10514cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic bool PushValueAndType(const Value *V, unsigned InstID, 10524cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> &Vals, 10534cc499d6e5ec602309501873449c938af61170b2Stephen Hines ValueEnumerator &VE) { 10544cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned ValID = VE.getValueID(V); 10554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(ValID); 10564cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (ValID >= InstID) { 10574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(V->getType())); 10584cc499d6e5ec602309501873449c938af61170b2Stephen Hines return true; 10594cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10604cc499d6e5ec602309501873449c938af61170b2Stephen Hines return false; 10614cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 10624cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10634cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteInstruction - Emit an instruction to the specified stream. 10644cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteInstruction(const Instruction &I, unsigned InstID, 10654cc499d6e5ec602309501873449c938af61170b2Stephen Hines ValueEnumerator &VE, BitstreamWriter &Stream, 10664cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> &Vals) { 10674cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code = 0; 10684cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = 0; 10694cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.setInstructionID(&I); 10704cc499d6e5ec602309501873449c938af61170b2Stephen Hines switch (I.getOpcode()) { 10714cc499d6e5ec602309501873449c938af61170b2Stephen Hines default: 10724cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Instruction::isCast(I.getOpcode())) { 10734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CAST; 10744cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 10754cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_CAST_ABBREV; 10764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); 10774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GetEncodedCastOpcode(I.getOpcode())); 10784cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 10794cc499d6e5ec602309501873449c938af61170b2Stephen Hines assert(isa<BinaryOperator>(I) && "Unknown instruction!"); 10804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_BINOP; 10814cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 10824cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_BINOP_ABBREV; 10834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 10844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode())); 10854cc499d6e5ec602309501873449c938af61170b2Stephen Hines uint64_t Flags = GetOptimizationFlags(&I); 10864cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Flags != 0) { 10874cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (AbbrevToUse == FUNCTION_INST_BINOP_ABBREV) 10884cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_BINOP_FLAGS_ABBREV; 10894cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Flags); 10904cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 10924cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 10934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 10944cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::GetElementPtr: 10954cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_GEP; 10964cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (cast<GEPOperator>(&I)->isInBounds()) 10974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INBOUNDS_GEP; 10984cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 10994cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); 11004cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11014cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractValue: { 11024cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_EXTRACTVAL; 11034cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11044cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ExtractValueInst *EVI = cast<ExtractValueInst>(&I); 11054cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i) 11064cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(*i); 11074cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11084cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11094cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertValue: { 11104cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INSERTVAL; 11114cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11124cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); 11134cc499d6e5ec602309501873449c938af61170b2Stephen Hines const InsertValueInst *IVI = cast<InsertValueInst>(&I); 11144cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i) 11154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(*i); 11164cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11174cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11184cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Select: 11194cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_VSELECT; 11204cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); 11214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11224cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11234cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11244cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ExtractElement: 11254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_EXTRACTELT; 11264cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11284cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11294cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::InsertElement: 11304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INSERTELT; 11314cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11344cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11354cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ShuffleVector: 11364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_SHUFFLEVEC; 11374cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(2))); 11404cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11414cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::ICmp: 11424cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::FCmp: 11434cc499d6e5ec602309501873449c938af61170b2Stephen Hines // compare returning Int1Ty or vector of Int1Ty 11444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_CMP2; 11454cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(0), InstID, Vals, VE); 11464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(1))); 11474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<CmpInst>(I).getPredicate()); 11484cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11494cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11504cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Ret: 11514cc499d6e5ec602309501873449c938af61170b2Stephen Hines { 11524cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_RET; 11534cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned NumOperands = I.getNumOperands(); 11544cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (NumOperands == 0) 11554cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_RET_VOID_ABBREV; 11564cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (NumOperands == 1) { 11574cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) 11584cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_RET_VAL_ABBREV; 11594cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 11604cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = NumOperands; i != e; ++i) 11614cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); 11624cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11634cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11644cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11654cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Br: 11664cc499d6e5ec602309501873449c938af61170b2Stephen Hines { 11674cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_BR; 11684cc499d6e5ec602309501873449c938af61170b2Stephen Hines BranchInst &II = cast<BranchInst>(I); 11694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getSuccessor(0))); 11704cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (II.isConditional()) { 11714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getSuccessor(1))); 11724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II.getCondition())); 11734cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11744cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 11754cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11764cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Switch: 11774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_SWITCH; 11784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 11794cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 11804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); 11814cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11824cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::IndirectBr: 11834cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INDIRECTBR; 11844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 11854cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) 11864cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); 11874cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 11884cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11894cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Invoke: { 11904cc499d6e5ec602309501873449c938af61170b2Stephen Hines const InvokeInst *II = cast<InvokeInst>(&I); 11914cc499d6e5ec602309501873449c938af61170b2Stephen Hines const Value *Callee(II->getCalledValue()); 11924cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(Callee->getType()); 11934cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FTy = cast<FunctionType>(PTy->getElementType()); 11944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_INVOKE; 11954cc499d6e5ec602309501873449c938af61170b2Stephen Hines 11964cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(II->getAttributes())); 11974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(II->getCallingConv()); 11984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II->getNormalDest())); 11994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(II->getUnwindDest())); 12004cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(Callee, InstID, Vals, VE); 12014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12024cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit value #'s for the fixed parameters. 12034cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) 12044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(i))); // fixed param. 12054cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12064cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit type/value pairs for varargs params. 12074cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FTy->isVarArg()) { 12084cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FTy->getNumParams(), e = I.getNumOperands()-3; 12094cc499d6e5ec602309501873449c938af61170b2Stephen Hines i != e; ++i) 12104cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(i), InstID, Vals, VE); // vararg 12114cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12124cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12134cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12144cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Unreachable: 12154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_UNREACHABLE; 12164cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_UNREACHABLE_ABBREV; 12174cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12194cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::PHI: { 12204cc499d6e5ec602309501873449c938af61170b2Stephen Hines const PHINode &PN = cast<PHINode>(I); 12214cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_PHI; 12224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(PN.getType())); 12234cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = PN.getNumIncomingValues(); i != e; ++i) { 12244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(PN.getIncomingValue(i))); 12254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(PN.getIncomingBlock(i))); 12264cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12274cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12284cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12294cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12304cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Alloca: 12314cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_ALLOCA; 12324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); 12334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); 12344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // size. 12354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<AllocaInst>(I).getAlignment())+1); 12364cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12374cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12384cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Load: 12394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_LOAD; 12404cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr 12414cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = FUNCTION_INST_LOAD_ABBREV; 12424cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1); 12444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<LoadInst>(I).isVolatile()); 12454cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12464cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Store: 12474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_STORE; 12484cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr 12494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // val. 12504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1); 12514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(cast<StoreInst>(I).isVolatile()); 12524cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12534cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::Call: { 12544cc499d6e5ec602309501873449c938af61170b2Stephen Hines const CallInst &CI = cast<CallInst>(I); 12554cc499d6e5ec602309501873449c938af61170b2Stephen Hines PointerType *PTy = cast<PointerType>(CI.getCalledValue()->getType()); 12564cc499d6e5ec602309501873449c938af61170b2Stephen Hines FunctionType *FTy = cast<FunctionType>(PTy->getElementType()); 12574cc499d6e5ec602309501873449c938af61170b2Stephen Hines 1258a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Code = FUNC_CODE_INST_CALL_2_7; 12594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getAttributeID(CI.getAttributes())); 12614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall())); 12624cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(CI.getCalledValue(), InstID, Vals, VE); // Callee 12634cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12644cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit value #'s for the fixed parameters. 12654cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i) 12664cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(CI.getArgOperand(i))); // fixed param. 12674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12684cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit type/value pairs for varargs params. 12694cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (FTy->isVarArg()) { 12704cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (unsigned i = FTy->getNumParams(), e = CI.getNumArgOperands(); 12714cc499d6e5ec602309501873449c938af61170b2Stephen Hines i != e; ++i) 12724cc499d6e5ec602309501873449c938af61170b2Stephen Hines PushValueAndType(CI.getArgOperand(i), InstID, Vals, VE); // varargs 12734cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12744cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12754cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12764cc499d6e5ec602309501873449c938af61170b2Stephen Hines case Instruction::VAArg: 12774cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::FUNC_CODE_INST_VAARG; 12784cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); // valistty 12794cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getValueID(I.getOperand(0))); // valist. 12804cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getTypeID(I.getType())); // restype. 12814cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; 12824cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 12834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, Vals, AbbrevToUse); 12854cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 12864cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 12874cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12884cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit names for globals/functions etc. 12894cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteValueSymbolTable(const ValueSymbolTable &VST, 12904cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueEnumerator &VE, 12914cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 12924cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (VST.empty()) return; 12934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 4); 12944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12954cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: Set up the abbrev, we know how many values there are! 12964cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: We know if the type names can use 7-bit ascii. 12974cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> NameVals; 12984cc499d6e5ec602309501873449c938af61170b2Stephen Hines 12994cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (ValueSymbolTable::const_iterator SI = VST.begin(), SE = VST.end(); 13004cc499d6e5ec602309501873449c938af61170b2Stephen Hines SI != SE; ++SI) { 13014cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13024cc499d6e5ec602309501873449c938af61170b2Stephen Hines const ValueName &Name = *SI; 13034cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13044cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Figure out the encoding to use for the name. 13054cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool is7Bit = true; 13064cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool isChar6 = true; 13074cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const char *C = Name.getKeyData(), *E = C+Name.getKeyLength(); 13084cc499d6e5ec602309501873449c938af61170b2Stephen Hines C != E; ++C) { 13094cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 13104cc499d6e5ec602309501873449c938af61170b2Stephen Hines isChar6 = BitCodeAbbrevOp::isChar6(*C); 13114cc499d6e5ec602309501873449c938af61170b2Stephen Hines if ((unsigned char)*C & 128) { 13124cc499d6e5ec602309501873449c938af61170b2Stephen Hines is7Bit = false; 13134cc499d6e5ec602309501873449c938af61170b2Stephen Hines break; // don't bother scanning the rest. 13144cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13154cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13164cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13174cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned AbbrevToUse = VST_ENTRY_8_ABBREV; 13184cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13194cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VST_ENTRY: [valueid, namechar x N] 13204cc499d6e5ec602309501873449c938af61170b2Stephen Hines // VST_BBENTRY: [bbid, namechar x N] 13214cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned Code; 13224cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isa<BasicBlock>(SI->getValue())) { 13234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::VST_CODE_BBENTRY; 13244cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 13254cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_BBENTRY_6_ABBREV; 13264cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 13274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Code = bitc::VST_CODE_ENTRY; 13284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (isChar6) 13294cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_ENTRY_6_ABBREV; 13304cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (is7Bit) 13314cc499d6e5ec602309501873449c938af61170b2Stephen Hines AbbrevToUse = VST_ENTRY_7_ABBREV; 13324cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13334cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13344cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back(VE.getValueID(SI->getValue())); 13354cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (const char *P = Name.getKeyData(), 13364cc499d6e5ec602309501873449c938af61170b2Stephen Hines *E = Name.getKeyData()+Name.getKeyLength(); P != E; ++P) 13374cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.push_back((unsigned char)*P); 13384cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13394cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the finished record. 13404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(Code, NameVals, AbbrevToUse); 13414cc499d6e5ec602309501873449c938af61170b2Stephen Hines NameVals.clear(); 13424cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 13434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 13444cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 13454cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13464cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteFunction - Emit a function body to the module stream. 13474cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteFunction(const Function &F, ValueEnumerator &VE, 13484cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitstreamWriter &Stream) { 13494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4); 13504cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.incorporateFunction(F); 13514cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13524cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 64> Vals; 13534cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13544cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the number of basic blocks, so the reader can create them ahead of 13554cc499d6e5ec602309501873449c938af61170b2Stephen Hines // time. 13564cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(VE.getBasicBlocks().size()); 13574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DECLAREBLOCKS, Vals); 13584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 13594cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If there are function-local constants, emit them now. 13614cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CstStart, CstEnd; 13624cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.getFunctionConstantRange(CstStart, CstEnd); 13634cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteConstants(CstStart, CstEnd, VE, Stream, false); 13644cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13654cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If there is function-local metadata, emit it now. 13664cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteFunctionLocalMetadata(F, VE, Stream); 13674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13684cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Keep a running idea of what the instruction ID is. 13694cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned InstID = CstEnd; 13704cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13714cc499d6e5ec602309501873449c938af61170b2Stephen Hines bool NeedsMetadataAttachment = false; 13724cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13734cc499d6e5ec602309501873449c938af61170b2Stephen Hines DebugLoc LastDL; 13744cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13754cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Finally, emit all the instructions, in order. 13764cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB) 13774cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); 13784cc499d6e5ec602309501873449c938af61170b2Stephen Hines I != E; ++I) { 13794cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteInstruction(*I, InstID, VE, Stream, Vals); 13804cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13814cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!I->getType()->isVoidTy()) 13824cc499d6e5ec602309501873449c938af61170b2Stephen Hines ++InstID; 13834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13844cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the instruction has metadata, write a metadata attachment later. 13854cc499d6e5ec602309501873449c938af61170b2Stephen Hines NeedsMetadataAttachment |= I->hasMetadataOtherThanDebugLoc(); 13864cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13874cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the instruction has a debug location, emit it. 13884cc499d6e5ec602309501873449c938af61170b2Stephen Hines DebugLoc DL = I->getDebugLoc(); 13894cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (DL.isUnknown()) { 13904cc499d6e5ec602309501873449c938af61170b2Stephen Hines // nothing todo. 13914cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else if (DL == LastDL) { 13924cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Just repeat the same debug loc as last time. 13934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::FUNC_CODE_DEBUG_LOC_AGAIN, Vals); 13944cc499d6e5ec602309501873449c938af61170b2Stephen Hines } else { 13954cc499d6e5ec602309501873449c938af61170b2Stephen Hines MDNode *Scope, *IA; 13964cc499d6e5ec602309501873449c938af61170b2Stephen Hines DL.getScopeAndInlinedAt(Scope, IA, I->getContext()); 13974cc499d6e5ec602309501873449c938af61170b2Stephen Hines 13984cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(DL.getLine()); 13994cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(DL.getCol()); 14004cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(Scope ? VE.getValueID(Scope)+1 : 0); 14014cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(IA ? VE.getValueID(IA)+1 : 0); 1402a546cb661a8ab70577827b8310e2b56a0773c1e1Stephen Hines Stream.EmitRecord(FUNC_CODE_DEBUG_LOC_2_7, Vals); 14034cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.clear(); 14044cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14054cc499d6e5ec602309501873449c938af61170b2Stephen Hines LastDL = DL; 14064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14074cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14084cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14094cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit names for all the instructions etc. 14104cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream); 14114cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14124cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (NeedsMetadataAttachment) 14134cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteMetadataAttachment(F, VE, Stream); 14144cc499d6e5ec602309501873449c938af61170b2Stephen Hines VE.purgeFunction(); 14154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 14164cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 14174cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14184cc499d6e5ec602309501873449c938af61170b2Stephen Hines// Emit blockinfo, which defines the standard abbreviations etc. 14194cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteBlockInfo(const ValueEnumerator &VE, BitstreamWriter &Stream) { 14204cc499d6e5ec602309501873449c938af61170b2Stephen Hines // We only want to emit block info records for blocks that have multiple 14214cc499d6e5ec602309501873449c938af61170b2Stephen Hines // instances: CONSTANTS_BLOCK, FUNCTION_BLOCK and VALUE_SYMTAB_BLOCK. Other 14224cc499d6e5ec602309501873449c938af61170b2Stephen Hines // blocks can defined their abbrevs inline. 14234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterBlockInfoBlock(2); 14244cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14254cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 8-bit fixed-width VST_ENTRY/VST_BBENTRY strings. 14264cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); 14284cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14294cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14304cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8)); 14314cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_8_ABBREV) 14334cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14344cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14354cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14364cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 7-bit fixed width VST_ENTRY strings. 14374cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 14394cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14404cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14414cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); 14424cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_7_ABBREV) 14444cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14454cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14464cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 6-bit char6 VST_ENTRY strings. 14474cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14484cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); 14494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14504cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14514cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 14524cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14534cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_ENTRY_6_ABBREV) 14544cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14554cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14564cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // 6-bit char6 VST_BBENTRY strings. 14574cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14584cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_BBENTRY)); 14594cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14604cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); 14614cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); 14624cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, 14634cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != VST_BBENTRY_6_ABBREV) 14644cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14654cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14664cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14674cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14694cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // SETTYPE abbrev for CONSTANTS_BLOCK. 14704cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14714cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_SETTYPE)); 14724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 14734cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 14744cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14754cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_SETTYPE_ABBREV) 14764cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14774cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14784cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14794cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INTEGER abbrev for CONSTANTS_BLOCK. 14804cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14814cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_INTEGER)); 14824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); 14834cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14844cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_INTEGER_ABBREV) 14854cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14864cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 14874cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14884cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // CE_CAST abbrev for CONSTANTS_BLOCK. 14894cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 14904cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CE_CAST)); 14914cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // cast opc 14924cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // typeid 14934cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 14944cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // value id 14954cc499d6e5ec602309501873449c938af61170b2Stephen Hines 14964cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 14974cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_CE_CAST_Abbrev) 14984cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 14994cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15004cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // NULL abbrev for CONSTANTS_BLOCK. 15014cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15024cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_NULL)); 15034cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID, 15044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != CONSTANTS_NULL_Abbrev) 15054cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15064cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15074cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15084cc499d6e5ec602309501873449c938af61170b2Stephen Hines // FIXME: This should only use space for first class types! 15094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15104cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_LOAD abbrev for FUNCTION_BLOCK. 15114cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15124cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_LOAD)); 15134cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Ptr 15144cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 4)); // Align 15154cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // volatile 15164cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15174cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_LOAD_ABBREV) 15184cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15194cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15204cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_BINOP abbrev for FUNCTION_BLOCK. 15214cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15224cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP)); 15234cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS 15244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS 15254cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15264cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15274cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_BINOP_ABBREV) 15284cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15294cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15304cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_BINOP_FLAGS abbrev for FUNCTION_BLOCK. 15314cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15324cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP)); 15334cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS 15344cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS 15354cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15364cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); // flags 15374cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15384cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_BINOP_FLAGS_ABBREV) 15394cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15404cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15414cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_CAST abbrev for FUNCTION_BLOCK. 15424cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15434cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_CAST)); 15444cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // OpVal 15454cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty 15464cc499d6e5ec602309501873449c938af61170b2Stephen Hines Log2_32_Ceil(VE.getTypes().size()+1))); 15474cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc 15484cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15494cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_CAST_ABBREV) 15504cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15514cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15524cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15534cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_RET abbrev for FUNCTION_BLOCK. 15544cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15554cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET)); 15564cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15574cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_RET_VOID_ABBREV) 15584cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 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 Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ValID 15644cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15654cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_RET_VAL_ABBREV) 15664cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15674cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15684cc499d6e5ec602309501873449c938af61170b2Stephen Hines { // INST_UNREACHABLE abbrev for FUNCTION_BLOCK. 15694cc499d6e5ec602309501873449c938af61170b2Stephen Hines BitCodeAbbrev *Abbv = new BitCodeAbbrev(); 15704cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_UNREACHABLE)); 15714cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID, 15724cc499d6e5ec602309501873449c938af61170b2Stephen Hines Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV) 15734cc499d6e5ec602309501873449c938af61170b2Stephen Hines llvm_unreachable("Unexpected abbrev ordering!"); 15744cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15754cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15764cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 15774cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 15784cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15794cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15804cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteModule - Emit the specified module to the bitstream. 15814cc499d6e5ec602309501873449c938af61170b2Stephen Hinesstatic void WriteModule(const Module *M, BitstreamWriter &Stream) { 15824cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3); 15834cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15844cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit the version number if it is non-zero. 15854cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (CurVersion) { 15864cc499d6e5ec602309501873449c938af61170b2Stephen Hines SmallVector<unsigned, 1> Vals; 15874cc499d6e5ec602309501873449c938af61170b2Stephen Hines Vals.push_back(CurVersion); 15884cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.EmitRecord(bitc::MODULE_CODE_VERSION, Vals); 15894cc499d6e5ec602309501873449c938af61170b2Stephen Hines } 15904cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15914cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Analyze the module, enumerating globals, functions, etc. 15924cc499d6e5ec602309501873449c938af61170b2Stephen Hines ValueEnumerator VE(M); 15934cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15944cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit blockinfo, which defines the standard abbreviations etc. 15954cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteBlockInfo(VE, Stream); 15964cc499d6e5ec602309501873449c938af61170b2Stephen Hines 15974cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information about parameter attributes. 15984cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteAttributeTable(VE, Stream); 15994cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16004cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit information describing all of the types in the module. 16014cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteTypeTable(VE, Stream); 16024cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16034cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit top-level description of module, including target triple, inline asm, 16044cc499d6e5ec602309501873449c938af61170b2Stephen Hines // descriptors for global variables, and function prototype info. 16054cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleInfo(M, VE, Stream); 16064cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16074cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit constants. 16084cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleConstants(VE, Stream); 16094cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16104cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit metadata. 16114cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleMetadata(M, VE, Stream); 16124cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16134cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit function bodies. 16144cc499d6e5ec602309501873449c938af61170b2Stephen Hines for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) 16154cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (!F->isDeclaration()) 16164cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteFunction(*F, VE, Stream); 16174cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16184cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit metadata. 16194cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteModuleMetadataStore(M, Stream); 16204cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16214cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Emit names for globals/functions etc. 16224cc499d6e5ec602309501873449c938af61170b2Stephen Hines WriteValueSymbolTable(M->getValueSymbolTable(), VE, Stream); 16234cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16244cc499d6e5ec602309501873449c938af61170b2Stephen Hines Stream.ExitBlock(); 16254cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 16264cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16274cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// EmitDarwinBCHeader - If generating a bc file on darwin, we have to emit a 16284cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// header and trailer to make it compatible with the system archiver. To do 16294cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// this we emit the following header, and then emit a trailer that pads the 16304cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// file out to be a multiple of 16 bytes. 16314cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// 16324cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// struct bc_header { 16334cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t Magic; // 0x0B17C0DE 16344cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t Version; // Version, currently always 0. 16354cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t BitcodeOffset; // Offset to traditional bitcode file. 16364cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t BitcodeSize; // Size of traditional bitcode file. 16374cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// uint32_t CPUType; // CPU specifier. 16384cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// ... potentially more later ... 16394cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// }; 16404cc499d6e5ec602309501873449c938af61170b2Stephen Hinesenum { 16414cc499d6e5ec602309501873449c938af61170b2Stephen Hines DarwinBCSizeFieldOffset = 3*4, // Offset to bitcode_size. 16424cc499d6e5ec602309501873449c938af61170b2Stephen Hines DarwinBCHeaderSize = 5*4 16434cc499d6e5ec602309501873449c938af61170b2Stephen Hines}; 16444cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16450444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hinesstatic void WriteInt32ToBuffer(uint32_t Value, SmallVectorImpl<char> &Buffer, 16460444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines uint32_t &Position) { 16470444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 0] = (unsigned char) (Value >> 0); 16480444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 1] = (unsigned char) (Value >> 8); 16490444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 2] = (unsigned char) (Value >> 16); 16500444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer[Position + 3] = (unsigned char) (Value >> 24); 16510444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Position += 4; 16520444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines} 16530444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 16540444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hinesstatic void EmitDarwinBCHeaderAndTrailer(SmallVectorImpl<char> &Buffer, 16550444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines const Triple &TT) { 16564cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned CPUType = ~0U; 16574cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16584cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Match x86_64-*, i[3-9]86-*, powerpc-*, powerpc64-*, arm-*, thumb-*, 16594cc499d6e5ec602309501873449c938af61170b2Stephen Hines // armv[0-9]-*, thumbv[0-9]-*, armv5te-*, or armv6t2-*. The CPUType is a magic 16604cc499d6e5ec602309501873449c938af61170b2Stephen Hines // number from /usr/include/mach/machine.h. It is ok to reproduce the 16614cc499d6e5ec602309501873449c938af61170b2Stephen Hines // specific constants here because they are implicitly part of the Darwin ABI. 16624cc499d6e5ec602309501873449c938af61170b2Stephen Hines enum { 16634cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_ARCH_ABI64 = 0x01000000, 16644cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_X86 = 7, 16654cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_ARM = 12, 16664cc499d6e5ec602309501873449c938af61170b2Stephen Hines DARWIN_CPU_TYPE_POWERPC = 18 16674cc499d6e5ec602309501873449c938af61170b2Stephen Hines }; 16684cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16694cc499d6e5ec602309501873449c938af61170b2Stephen Hines Triple::ArchType Arch = TT.getArch(); 16704cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (Arch == Triple::x86_64) 16714cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_X86 | DARWIN_CPU_ARCH_ABI64; 16724cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::x86) 16734cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_X86; 16744cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::ppc) 16754cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_POWERPC; 16764cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::ppc64) 16774cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_POWERPC | DARWIN_CPU_ARCH_ABI64; 16784cc499d6e5ec602309501873449c938af61170b2Stephen Hines else if (Arch == Triple::arm || Arch == Triple::thumb) 16794cc499d6e5ec602309501873449c938af61170b2Stephen Hines CPUType = DARWIN_CPU_TYPE_ARM; 16804cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16814cc499d6e5ec602309501873449c938af61170b2Stephen Hines // Traditional Bitcode starts after header. 16820444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines assert(Buffer.size() >= DarwinBCHeaderSize && 16830444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines "Expected header size to be reserved"); 16844cc499d6e5ec602309501873449c938af61170b2Stephen Hines unsigned BCOffset = DarwinBCHeaderSize; 16850444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned BCSize = Buffer.size()-DarwinBCHeaderSize; 16864cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16870444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Write the magic and version. 16880444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines unsigned Position = 0; 16890444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(0x0B17C0DE , Buffer, Position); 16900444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(0 , Buffer, Position); // Version. 16910444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(BCOffset , Buffer, Position); 16920444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(BCSize , Buffer, Position); 16930444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteInt32ToBuffer(CPUType , Buffer, Position); 16944cc499d6e5ec602309501873449c938af61170b2Stephen Hines 16954cc499d6e5ec602309501873449c938af61170b2Stephen Hines // If the file is not a multiple of 16 bytes, insert dummy padding. 16960444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines while (Buffer.size() & 15) 16970444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer.push_back(0); 16984cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 16994cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17004cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// WriteBitcodeToFile - Write the specified module to the specified output 17014cc499d6e5ec602309501873449c938af61170b2Stephen Hines/// stream. 17024cc499d6e5ec602309501873449c938af61170b2Stephen Hinesvoid llvm_2_9::WriteBitcodeToFile(const Module *M, raw_ostream &Out) { 17030444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines SmallVector<char, 1024> Buffer; 17044cc499d6e5ec602309501873449c938af61170b2Stephen Hines Buffer.reserve(256*1024); 17054cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17060444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // If this is darwin or another generic macho target, reserve space for the 17070444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // header. 17084cc499d6e5ec602309501873449c938af61170b2Stephen Hines Triple TT(M->getTargetTriple()); 17094cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (TT.isOSDarwin()) 17100444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Buffer.insert(Buffer.begin(), DarwinBCHeaderSize, 0); 17110444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17120444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Emit the module into the buffer. 17130444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines { 17140444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines BitstreamWriter Stream(Buffer); 17150444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17160444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Emit the file header. 17170444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit((unsigned)'B', 8); 17180444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit((unsigned)'C', 8); 17190444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0x0, 4); 17200444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0xC, 4); 17210444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0xE, 4); 17220444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Stream.Emit(0xD, 4); 17230444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17240444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Emit the module. 17250444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines WriteModule(M, Stream); 17260444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines } 17274cc499d6e5ec602309501873449c938af61170b2Stephen Hines 17284cc499d6e5ec602309501873449c938af61170b2Stephen Hines if (TT.isOSDarwin()) 17290444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines EmitDarwinBCHeaderAndTrailer(Buffer, TT); 17300444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines 17310444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines // Write the generated bitstream to "Out". 17320444de0c0e7cfc8d8f8fed6f64cd97812bdd6a41Stephen Hines Out.write((char*)&Buffer.front(), Buffer.size()); 17334cc499d6e5ec602309501873449c938af61170b2Stephen Hines} 1734