RegisterInfoEmitter.cpp revision 0ee07e013095e8c298fbcc5203e0bc9f334e15e1
13112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner//===- RegisterInfoEmitter.cpp - Generate a Register File Desc. -*- C++ -*-===// 23da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman// 301d45827a1e512f3b19ba857772bf02baa3c0c4eJohn Criswell// The LLVM Compiler Infrastructure 401d45827a1e512f3b19ba857772bf02baa3c0c4eJohn Criswell// 53060910e290949a9ac5eda8726d030790c4d60ffChris Lattner// This file is distributed under the University of Illinois Open Source 63060910e290949a9ac5eda8726d030790c4d60ffChris Lattner// License. See LICENSE.TXT for details. 73da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman// 801d45827a1e512f3b19ba857772bf02baa3c0c4eJohn Criswell//===----------------------------------------------------------------------===// 93112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner// 103112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner// This tablegen backend is responsible for emitting a description of a target 113112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner// register file for a code generator. It uses instances of the Register, 123112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner// RegisterAliases, and RegisterClass classes to gather this information. 133112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner// 143112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner//===----------------------------------------------------------------------===// 153112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner 163112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner#include "RegisterInfoEmitter.h" 17803a5f6ecb1823280f80e3c4459aa58627d0484cChris Lattner#include "CodeGenTarget.h" 1826693113201f4c9d441678e50d96f38d3288798eChris Lattner#include "CodeGenRegisters.h" 190d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen#include "SequenceToOffsetTable.h" 20bfb4327baa5bbab78f0da4c8c069482878660a04Jim Grosbach#include "llvm/TableGen/Error.h" 217c788888872233748da10a8177a9a1eb176c1bc8Peter Collingbourne#include "llvm/TableGen/Record.h" 229df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer#include "llvm/ADT/BitVector.h" 23551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/ADT/StringExtras.h" 24551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/ADT/STLExtras.h" 25bfb4327baa5bbab78f0da4c8c069482878660a04Jim Grosbach#include "llvm/ADT/Twine.h" 264091b059ec9568228f50fd67a1a81ee35c234787Jakob Stoklund Olesen#include "llvm/Support/Format.h" 27cc51c3195374645b18918458bac02e85b8c27db6Chuck Rose III#include <algorithm> 281a55180238dbcf11113f610aea010447e51f595bDaniel Dunbar#include <set> 292082ebe8b3a5db302748828ab4f79a36d239c1d9Chris Lattnerusing namespace llvm; 30d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 3154d156d33324b7715453993f21684915a28e310aChris Lattner// runEnums - Print out enum values for all of the registers. 32723fc11f91240e267dd748b467b43b6c00498e4bJim Grosbachvoid RegisterInfoEmitter::runEnums(raw_ostream &OS, 33723fc11f91240e267dd748b467b43b6c00498e4bJim Grosbach CodeGenTarget &Target, CodeGenRegBank &Bank) { 34abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen const std::vector<CodeGenRegister*> &Registers = Bank.getRegisters(); 3554d156d33324b7715453993f21684915a28e310aChris Lattner 365bd9e0dd028202f94391a394a12a6b8c69ee52e3Jim Grosbach // Register enums are stored as uint16_t in the tables. Make sure we'll fit. 37904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper assert(Registers.size() <= 0xffff && "Too many regs to fit in tables"); 38904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper 39abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen std::string Namespace = Registers[0]->TheDef->getValueAsString("Namespace"); 4054d156d33324b7715453993f21684915a28e310aChris Lattner 410e5e49e6888c354ff95fc9e56d0881af78cb4269Chris Lattner EmitSourceFileHeader("Target Register Enum Values", OS); 4273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 4373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n#ifdef GET_REGINFO_ENUM\n"; 4473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#undef GET_REGINFO_ENUM\n"; 4573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 462c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "namespace llvm {\n\n"; 4754d156d33324b7715453993f21684915a28e310aChris Lattner 485de728cfe1a922ac9b13546dca94526b2fa693b6Evan Cheng OS << "class MCRegisterClass;\n" 491a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "extern const MCRegisterClass " << Namespace 501a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "MCRegisterClasses[];\n\n"; 515de728cfe1a922ac9b13546dca94526b2fa693b6Evan Cheng 5254d156d33324b7715453993f21684915a28e310aChris Lattner if (!Namespace.empty()) 5354d156d33324b7715453993f21684915a28e310aChris Lattner OS << "namespace " << Namespace << " {\n"; 5473ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen OS << "enum {\n NoRegister,\n"; 5554d156d33324b7715453993f21684915a28e310aChris Lattner 5654d156d33324b7715453993f21684915a28e310aChris Lattner for (unsigned i = 0, e = Registers.size(); i != e; ++i) 57abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen OS << " " << Registers[i]->getName() << " = " << 58abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen Registers[i]->EnumValue << ",\n"; 59abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen assert(Registers.size() == Registers[Registers.size()-1]->EnumValue && 6017fad045cccf34822d3163ada9e70a8f4528746eJim Grosbach "Register enum value mismatch!"); 6173ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen OS << " NUM_TARGET_REGS \t// " << Registers.size()+1 << "\n"; 6273ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen OS << "};\n"; 6354d156d33324b7715453993f21684915a28e310aChris Lattner if (!Namespace.empty()) 6454d156d33324b7715453993f21684915a28e310aChris Lattner OS << "}\n"; 6573ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen 6629f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = Bank.getRegClasses(); 6773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (!RegisterClasses.empty()) { 68904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper 69904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper // RegisterClass enums are stored as uint16_t in the tables. 70904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper assert(RegisterClasses.size() <= 0xffff && 71904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper "Too many register classes to fit in tables"); 72904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper 7373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n// Register classes\n"; 744987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 754987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "namespace " << Namespace << " {\n"; 7673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "enum {\n"; 7773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 7873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (i) OS << ",\n"; 7929f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen OS << " " << RegisterClasses[i]->getName() << "RegClassID"; 8073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " = " << i; 8173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 8273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n };\n"; 834987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 844987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "}\n"; 854987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng } 864987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng 874987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng const std::vector<Record*> RegAltNameIndices = Target.getRegAltNameIndices(); 884987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng // If the only definition is the default NoRegAltName, we don't need to 894987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng // emit anything. 904987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (RegAltNameIndices.size() > 1) { 914987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "\n// Register alternate name indices\n"; 924987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 934987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "namespace " << Namespace << " {\n"; 944987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "enum {\n"; 954987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng for (unsigned i = 0, e = RegAltNameIndices.size(); i != e; ++i) 964987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << " " << RegAltNameIndices[i]->getName() << ",\t// " << i << "\n"; 974987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << " NUM_TARGET_REG_ALT_NAMES = " << RegAltNameIndices.size() << "\n"; 984987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "};\n"; 994987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 1004987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "}\n"; 10173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 10273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 1035d9651df892afb0bb4036827c327b8effe87060cJim Grosbach ArrayRef<CodeGenSubRegIndex*> SubRegIndices = Bank.getSubRegIndices(); 1045d9651df892afb0bb4036827c327b8effe87060cJim Grosbach if (!SubRegIndices.empty()) { 1055d9651df892afb0bb4036827c327b8effe87060cJim Grosbach OS << "\n// Subregister indices\n"; 1065d9651df892afb0bb4036827c327b8effe87060cJim Grosbach std::string Namespace = 1075d9651df892afb0bb4036827c327b8effe87060cJim Grosbach SubRegIndices[0]->getNamespace(); 1085d9651df892afb0bb4036827c327b8effe87060cJim Grosbach if (!Namespace.empty()) 1095d9651df892afb0bb4036827c327b8effe87060cJim Grosbach OS << "namespace " << Namespace << " {\n"; 1105d9651df892afb0bb4036827c327b8effe87060cJim Grosbach OS << "enum {\n NoSubRegister,\n"; 1115d9651df892afb0bb4036827c327b8effe87060cJim Grosbach for (unsigned i = 0, e = Bank.getNumNamedIndices(); i != e; ++i) 1125d9651df892afb0bb4036827c327b8effe87060cJim Grosbach OS << " " << SubRegIndices[i]->getName() << ",\t// " << i+1 << "\n"; 1135d9651df892afb0bb4036827c327b8effe87060cJim Grosbach OS << " NUM_TARGET_NAMED_SUBREGS\n};\n"; 1145d9651df892afb0bb4036827c327b8effe87060cJim Grosbach if (!Namespace.empty()) 1155d9651df892afb0bb4036827c327b8effe87060cJim Grosbach OS << "}\n"; 1165d9651df892afb0bb4036827c327b8effe87060cJim Grosbach } 1174987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng 1182c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "} // End llvm namespace \n"; 11973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#endif // GET_REGINFO_ENUM\n\n"; 12054d156d33324b7715453993f21684915a28e310aChris Lattner} 12154d156d33324b7715453993f21684915a28e310aChris Lattner 122176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trickvoid RegisterInfoEmitter:: 123176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew TrickEmitRegUnitPressure(raw_ostream &OS, const CodeGenRegBank &RegBank, 124176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick const std::string &ClassName) { 125176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick unsigned NumRCs = RegBank.getRegClasses().size(); 126176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick unsigned NumSets = RegBank.getNumRegPressureSets(); 127176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick 128176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "/// Get the weight in units of pressure for this register class.\n" 129ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick << "const RegClassWeight &" << ClassName << "::\n" 130176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "getRegClassWeight(const TargetRegisterClass *RC) const {\n" 131ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick << " static const RegClassWeight RCWeightTable[] = {\n"; 132176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick for (unsigned i = 0, e = NumRCs; i != e; ++i) { 133176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick const CodeGenRegisterClass &RC = *RegBank.getRegClasses()[i]; 134176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick const CodeGenRegister::Set &Regs = RC.getMembers(); 135176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick if (Regs.empty()) 136ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick OS << " {0, 0"; 137ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick else { 138ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick std::vector<unsigned> RegUnits; 139ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick RC.buildRegUnitSet(RegUnits); 140ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick OS << " {" << (*Regs.begin())->getWeight(RegBank) 141ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick << ", " << RegBank.getRegUnitSetWeight(RegUnits); 142ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick } 143ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick OS << "}, \t// " << RC.getName() << "\n"; 144176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick } 145ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick OS << " {0, 0} };\n" 146176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " return RCWeightTable[RC->getID()];\n" 147176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "}\n\n"; 148176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick 149176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "\n" 150176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "// Get the number of dimensions of register pressure.\n" 151176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "unsigned " << ClassName << "::getNumRegPressureSets() const {\n" 152176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " return " << NumSets << ";\n}\n\n"; 153176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick 1547c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick OS << "// Get the name of this register unit pressure set.\n" 1557c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << "const char *" << ClassName << "::\n" 1567c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << "getRegPressureSetName(unsigned Idx) const {\n" 1577c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << " static const char *PressureNameTable[] = {\n"; 1587c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick for (unsigned i = 0; i < NumSets; ++i ) { 1597c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick OS << " \"" << RegBank.getRegPressureSet(i).Name << "\",\n"; 1607c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick } 1617c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick OS << " 0 };\n" 1627c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << " return PressureNameTable[Idx];\n" 1637c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << "}\n\n"; 1647c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick 165176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "// Get the register unit pressure limit for this dimension.\n" 166176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "// This limit must be adjusted dynamically for reserved registers.\n" 167176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "unsigned " << ClassName << "::\n" 168176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "getRegPressureSetLimit(unsigned Idx) const {\n" 169176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " static const unsigned PressureLimitTable[] = {\n"; 170176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick for (unsigned i = 0; i < NumSets; ++i ) { 171680363b5fdf7ce6e188d4c8c7508fc819061ba6dAndrew Trick const RegUnitSet &RegUnits = RegBank.getRegPressureSet(i); 172ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick OS << " " << RegBank.getRegUnitSetWeight(RegUnits.Units) 1737c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << ", \t// " << i << ": " << RegUnits.Name << "\n"; 174176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick } 175176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << " 0 };\n" 176176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " return PressureLimitTable[Idx];\n" 177176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "}\n\n"; 178176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick 179176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "/// Get the dimensions of register pressure " 180176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "impacted by this register class.\n" 181176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "/// Returns a -1 terminated array of pressure set IDs\n" 182176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "const int* " << ClassName << "::\n" 183176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "getRegClassPressureSets(const TargetRegisterClass *RC) const {\n" 184176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " static const int RCSetsTable[] = {\n "; 185176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick std::vector<unsigned> RCSetStarts(NumRCs); 186176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick for (unsigned i = 0, StartIdx = 0, e = NumRCs; i != e; ++i) { 187176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick RCSetStarts[i] = StartIdx; 188176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick ArrayRef<unsigned> PSetIDs = RegBank.getRCPressureSetIDs(i); 189176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick for (ArrayRef<unsigned>::iterator PSetI = PSetIDs.begin(), 190176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick PSetE = PSetIDs.end(); PSetI != PSetE; ++PSetI) { 191176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << *PSetI << ", "; 192176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick ++StartIdx; 193176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick } 194176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "-1, \t// " << RegBank.getRegClasses()[i]->getName() << "\n "; 195176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick ++StartIdx; 196176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick } 197176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "-1 };\n"; 198176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << " static const unsigned RCSetStartTable[] = {\n "; 199176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick for (unsigned i = 0, e = NumRCs; i != e; ++i) { 200176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << RCSetStarts[i] << ","; 201176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick } 202176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick OS << "0 };\n" 203176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " unsigned SetListStart = RCSetStartTable[RC->getID()];\n" 204176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " return &RCSetsTable[SetListStart];\n" 205176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "}\n\n"; 206176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick} 2070e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 208243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramervoid 209243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin KramerRegisterInfoEmitter::EmitRegMappingTables(raw_ostream &OS, 210243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer const std::vector<CodeGenRegister*> &Regs, 211243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer bool isCtor) { 2120e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Collect all information about dwarf register numbers 2130e6a052331f674dd70e28af41f654a7874405eabEvan Cheng typedef std::map<Record*, std::vector<int64_t>, LessRecord> DwarfRegNumsMapTy; 2140e6a052331f674dd70e28af41f654a7874405eabEvan Cheng DwarfRegNumsMapTy DwarfRegNums; 2150e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 2160e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // First, just pull all provided information to the map 2170e6a052331f674dd70e28af41f654a7874405eabEvan Cheng unsigned maxLength = 0; 2180e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 2190e6a052331f674dd70e28af41f654a7874405eabEvan Cheng Record *Reg = Regs[i]->TheDef; 2200e6a052331f674dd70e28af41f654a7874405eabEvan Cheng std::vector<int64_t> RegNums = Reg->getValueAsListOfInts("DwarfNumbers"); 2210e6a052331f674dd70e28af41f654a7874405eabEvan Cheng maxLength = std::max((size_t)maxLength, RegNums.size()); 2220e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (DwarfRegNums.count(Reg)) 223bfb4327baa5bbab78f0da4c8c069482878660a04Jim Grosbach PrintWarning(Reg->getLoc(), Twine("DWARF numbers for register ") + 2243cbcffc4e5990209ce80a54e615f55245fe3b824Benjamin Kramer getQualifiedName(Reg) + "specified multiple times"); 2250e6a052331f674dd70e28af41f654a7874405eabEvan Cheng DwarfRegNums[Reg] = RegNums; 2260e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 2270e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 2280e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (!maxLength) 2290e6a052331f674dd70e28af41f654a7874405eabEvan Cheng return; 2300e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 2310e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Now we know maximal length of number list. Append -1's, where needed 2320e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (DwarfRegNumsMapTy::iterator 2330e6a052331f674dd70e28af41f654a7874405eabEvan Cheng I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) 2340e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = I->second.size(), e = maxLength; i != e; ++i) 2350e6a052331f674dd70e28af41f654a7874405eabEvan Cheng I->second.push_back(-1); 2360e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 237243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer std::string Namespace = Regs[0]->TheDef->getValueAsString("Namespace"); 238243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 239243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "// " << Namespace << " Dwarf<->LLVM register mappings.\n"; 240243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 241243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // Emit reverse information about the dwarf register numbers. 242243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (unsigned j = 0; j < 2; ++j) { 243243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (unsigned i = 0, e = maxLength; i != e; ++i) { 244243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "extern const MCRegisterInfo::DwarfLLVMRegPair " << Namespace; 245243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << (j == 0 ? "DwarfFlavour" : "EHFlavour"); 246243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << i << "Dwarf2L[]"; 247243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 248243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!isCtor) { 249243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " = {\n"; 250243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 251243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // Store the mapping sorted by the LLVM reg num so lookup can be done 252243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // with a binary search. 253243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer std::map<uint64_t, Record*> Dwarf2LMap; 254243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (DwarfRegNumsMapTy::iterator 255243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) { 256243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer int DwarfRegNo = I->second[i]; 257243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (DwarfRegNo < 0) 258243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer continue; 259243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer Dwarf2LMap[DwarfRegNo] = I->first; 260243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 261243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 262243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (std::map<uint64_t, Record*>::iterator 263243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer I = Dwarf2LMap.begin(), E = Dwarf2LMap.end(); I != E; ++I) 264243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " { " << I->first << "U, " << getQualifiedName(I->second) 265243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << " },\n"; 266243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 267243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "};\n"; 268243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } else { 269243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << ";\n"; 270243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 271243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 272243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // We have to store the size in a const global, it's used in multiple 273243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // places. 274243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "extern const unsigned " << Namespace 275243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << (j == 0 ? "DwarfFlavour" : "EHFlavour") << i << "Dwarf2LSize"; 276243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!isCtor) 277243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " = sizeof(" << Namespace 278243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << (j == 0 ? "DwarfFlavour" : "EHFlavour") << i 279243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << "Dwarf2L)/sizeof(MCRegisterInfo::DwarfLLVMRegPair);\n\n"; 280243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer else 281243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << ";\n\n"; 282243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 283243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 284243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 285243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 286243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer Record *Reg = Regs[i]->TheDef; 287243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer const RecordVal *V = Reg->getValue("DwarfAlias"); 288243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!V || !V->getValue()) 289243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer continue; 290243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 291243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer DefInit *DI = dynamic_cast<DefInit*>(V->getValue()); 292243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer Record *Alias = DI->getDef(); 293243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer DwarfRegNums[Reg] = DwarfRegNums[Alias]; 294243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 295243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 296243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // Emit information about the dwarf register numbers. 297243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (unsigned j = 0; j < 2; ++j) { 298243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (unsigned i = 0, e = maxLength; i != e; ++i) { 299243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "extern const MCRegisterInfo::DwarfLLVMRegPair " << Namespace; 300243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << (j == 0 ? "DwarfFlavour" : "EHFlavour"); 301243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << i << "L2Dwarf[]"; 302243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!isCtor) { 303243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " = {\n"; 304243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // Store the mapping sorted by the Dwarf reg num so lookup can be done 305243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // with a binary search. 306243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (DwarfRegNumsMapTy::iterator 307243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) { 308243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer int RegNo = I->second[i]; 309243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (RegNo == -1) // -1 is the default value, don't emit a mapping. 310243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer continue; 311243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 312243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " { " << getQualifiedName(I->first) << ", " << RegNo 313243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << "U },\n"; 314243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 315243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "};\n"; 316243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } else { 317243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << ";\n"; 318243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 319243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 320243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // We have to store the size in a const global, it's used in multiple 321243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // places. 322243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "extern const unsigned " << Namespace 323243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << (j == 0 ? "DwarfFlavour" : "EHFlavour") << i << "L2DwarfSize"; 324243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!isCtor) 325243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " = sizeof(" << Namespace 326243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << (j == 0 ? "DwarfFlavour" : "EHFlavour") << i 327243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << "L2Dwarf)/sizeof(MCRegisterInfo::DwarfLLVMRegPair);\n\n"; 328243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer else 329243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << ";\n\n"; 330243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 331243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 332243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer} 333243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 334243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramervoid 335243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin KramerRegisterInfoEmitter::EmitRegMapping(raw_ostream &OS, 336243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer const std::vector<CodeGenRegister*> &Regs, 337243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer bool isCtor) { 338243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // Emit the initializer so the tables from EmitRegMappingTables get wired up 339243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer // to the MCRegisterInfo object. 340243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer unsigned maxLength = 0; 341243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 342243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer Record *Reg = Regs[i]->TheDef; 343243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer maxLength = std::max((size_t)maxLength, 344243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer Reg->getValueAsListOfInts("DwarfNumbers").size()); 345243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer } 346243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 347243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!maxLength) 348243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer return; 349243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 350243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer std::string Namespace = Regs[0]->TheDef->getValueAsString("Namespace"); 351243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 3520e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Emit reverse information about the dwarf register numbers. 3530e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned j = 0; j < 2; ++j) { 3540e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " switch ("; 3550e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (j == 0) 3560e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "DwarfFlavour"; 3570e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 3580e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "EHFlavour"; 3590e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << ") {\n" 3600e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << " default:\n" 361655b8de7b2ab773a977e0c524307e71354d8af29Craig Topper << " llvm_unreachable(\"Unknown DWARF flavour\");\n"; 3620e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 3630e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = maxLength; i != e; ++i) { 3640e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " case " << i << ":\n"; 365243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " "; 366243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!isCtor) 367243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "RI->"; 368243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer std::string Tmp; 369243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer raw_string_ostream(Tmp) << Namespace 370243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << (j == 0 ? "DwarfFlavour" : "EHFlavour") << i 371243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << "Dwarf2L"; 372243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "mapDwarfRegsToLLVMRegs(" << Tmp << ", " << Tmp << "Size, "; 373243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (j == 0) 3740e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "false"; 3750e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 3760e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "true"; 377243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << ");\n"; 3780e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " break;\n"; 3790e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 3800e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " }\n"; 3810e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 3820e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 3830e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Emit information about the dwarf register numbers. 3840e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned j = 0; j < 2; ++j) { 3850e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " switch ("; 3860e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (j == 0) 3870e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "DwarfFlavour"; 3880e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 3890e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "EHFlavour"; 3900e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << ") {\n" 3910e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << " default:\n" 392655b8de7b2ab773a977e0c524307e71354d8af29Craig Topper << " llvm_unreachable(\"Unknown DWARF flavour\");\n"; 3930e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 3940e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = maxLength; i != e; ++i) { 3950e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " case " << i << ":\n"; 396243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << " "; 397243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (!isCtor) 398243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "RI->"; 399243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer std::string Tmp; 400243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer raw_string_ostream(Tmp) << Namespace 401243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << (j == 0 ? "DwarfFlavour" : "EHFlavour") << i 402243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer << "L2Dwarf"; 403243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << "mapLLVMRegsToDwarfRegs(" << Tmp << ", " << Tmp << "Size, "; 404243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer if (j == 0) 4050e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "false"; 4060e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 4070e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "true"; 408243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer OS << ");\n"; 4090e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " break;\n"; 4100e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 4110e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " }\n"; 4120e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 4130e6a052331f674dd70e28af41f654a7874405eabEvan Cheng} 4140e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 415b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen// Print a BitVector as a sequence of hex numbers using a little-endian mapping. 416b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen// Width is the number of bits per hex number. 417b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesenstatic void printBitVectorAsHex(raw_ostream &OS, 418b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen const BitVector &Bits, 419b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen unsigned Width) { 420b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen assert(Width <= 32 && "Width too large"); 421b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen unsigned Digits = (Width + 3) / 4; 422b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen for (unsigned i = 0, e = Bits.size(); i < e; i += Width) { 423b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen unsigned Value = 0; 424b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen for (unsigned j = 0; j != Width && i + j != e; ++j) 425b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen Value |= Bits.test(i + j) << j; 426b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen OS << format("0x%0*x, ", Digits, Value); 427b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen } 428b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen} 429b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen 4309df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer// Helper to emit a set of bits into a constant byte array. 4319df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramerclass BitVectorEmitter { 4329df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer BitVector Values; 4339df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramerpublic: 434a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer void add(unsigned v) { 435a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer if (v >= Values.size()) 436a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer Values.resize(((v/8)+1)*8); // Round up to the next byte. 437a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer Values[v] = true; 4389df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer } 4399df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 4409df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer void print(raw_ostream &OS) { 441b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen printBitVectorAsHex(OS, Values, 8); 4429df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer } 4439df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer}; 4449df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 4450d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesenstatic void printRegister(raw_ostream &OS, const CodeGenRegister *Reg) { 4460d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << getQualifiedName(Reg->TheDef); 4470d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen} 4480d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 4490d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesenstatic void printSimpleValueType(raw_ostream &OS, MVT::SimpleValueType VT) { 4500d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << getEnumName(VT); 4510d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen} 4520d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 453f92be238d6370fbab58f035a5bd0c6db7e207094Jakob Stoklund Olesenstatic void printSubRegIndex(raw_ostream &OS, const CodeGenSubRegIndex *Idx) { 454f92be238d6370fbab58f035a5bd0c6db7e207094Jakob Stoklund Olesen OS << Idx->getQualifiedName(); 455f92be238d6370fbab58f035a5bd0c6db7e207094Jakob Stoklund Olesen} 456f92be238d6370fbab58f035a5bd0c6db7e207094Jakob Stoklund Olesen 4574091b059ec9568228f50fd67a1a81ee35c234787Jakob Stoklund Olesen// 45873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// runMCDesc - Print out MC register descriptions. 45954d156d33324b7715453993f21684915a28e310aChris Lattner// 46073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid 46173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan ChengRegisterInfoEmitter::runMCDesc(raw_ostream &OS, CodeGenTarget &Target, 46273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng CodeGenRegBank &RegBank) { 46373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng EmitSourceFileHeader("MC Register Information", OS); 46473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 46573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n#ifdef GET_REGINFO_MC_DESC\n"; 46673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#undef GET_REGINFO_MC_DESC\n"; 46773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 4680d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters(); 46973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng std::map<const CodeGenRegister*, CodeGenRegister::Set> Overlaps; 47073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng RegBank.computeOverlaps(Overlaps); 47173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 4720d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // The lists of sub-registers, super-registers, and overlaps all go in the 4730d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // same array. That allows us to share suffixes. 4740d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen typedef std::vector<const CodeGenRegister*> RegVec; 4750d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen SmallVector<RegVec, 4> SubRegLists(Regs.size()); 4760d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen SmallVector<RegVec, 4> OverlapLists(Regs.size()); 4770d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen SequenceToOffsetTable<RegVec, CodeGenRegister::Less> RegSeqs; 478902af25abdc9e6d25b898310c1e4716bbe768fb9Craig Topper 4790d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Precompute register lists for the SequenceToOffsetTable. 48073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 48173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister *Reg = Regs[i]; 48273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 4830d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Compute the ordered sub-register list. 484c6a96ff6aeeb77e1007364e5603b72f3ab4cc7bdJakob Stoklund Olesen SetVector<const CodeGenRegister*> SR; 4850d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen Reg->addSubRegsPreOrder(SR, RegBank); 4860d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegVec &SubRegList = SubRegLists[i]; 4870d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen SubRegList.assign(SR.begin(), SR.end()); 4880d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegSeqs.add(SubRegList); 4890d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 4900d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Super-registers are already computed. 4910d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen const RegVec &SuperRegList = Reg->getSuperRegs(); 4920d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegSeqs.add(SuperRegList); 4930d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 4940d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // The list of overlaps doesn't need to have any particular order, except 4950d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Reg itself must be the first element. Pick an ordering that has one of 4960d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // the other lists as a suffix. 4970d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegVec &OverlapList = OverlapLists[i]; 4980d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen const RegVec &Suffix = SubRegList.size() > SuperRegList.size() ? 4990d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen SubRegList : SuperRegList; 5000d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen CodeGenRegister::Set Omit(Suffix.begin(), Suffix.end()); 5010d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 5020d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // First element is Reg itself. 5030d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OverlapList.push_back(Reg); 5040d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen Omit.insert(Reg); 5050d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 5060d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Any elements not in Suffix. 5070d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen const CodeGenRegister::Set &OSet = Overlaps[Reg]; 5080d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen std::set_difference(OSet.begin(), OSet.end(), 5090d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen Omit.begin(), Omit.end(), 5100d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen std::back_inserter(OverlapList), 5110d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen CodeGenRegister::Less()); 5120d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 5130d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Finally, Suffix itself. 5140d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OverlapList.insert(OverlapList.end(), Suffix.begin(), Suffix.end()); 5150d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegSeqs.add(OverlapList); 51673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 51773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 5180d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Compute the final layout of the sequence table. 5190d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegSeqs.layout(); 5200d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 5210d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << "namespace llvm {\n\n"; 5220d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 5230d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen const std::string &TargetName = Target.getName(); 5240d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen 5250d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Emit the shared table of register lists. 5260d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << "extern const uint16_t " << TargetName << "RegLists[] = {\n"; 5270d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen RegSeqs.emit(OS, printRegister); 528902af25abdc9e6d25b898310c1e4716bbe768fb9Craig Topper OS << "};\n\n"; 52973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 530902af25abdc9e6d25b898310c1e4716bbe768fb9Craig Topper OS << "extern const MCRegisterDesc " << TargetName 53173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng << "RegDesc[] = { // Descriptors\n"; 5329d91c5d31c6758124559c0916d852295f47a2becCraig Topper OS << " { \"NOREG\", 0, 0, 0 },\n"; 53373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 5340d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Emit the register descriptors now. 53573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 536902af25abdc9e6d25b898310c1e4716bbe768fb9Craig Topper const CodeGenRegister *Reg = Regs[i]; 5370d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << " { \"" << Reg->getName() << "\", " 5380d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen << RegSeqs.get(OverlapLists[i]) << ", " 5390d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen << RegSeqs.get(SubRegLists[i]) << ", " 5400d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen << RegSeqs.get(Reg->getSuperRegs()) << " },\n"; 54173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 542c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "};\n\n"; // End of register descriptors... 54373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 54429f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses(); 5458ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 5468ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Loop over all of the register classes... emitting each one. 5478ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "namespace { // Register classes...\n"; 5488ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 5498ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Emit the register enum value arrays for each RegisterClass 5508ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 55129f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 5528ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer ArrayRef<Record*> Order = RC.getOrder(); 5538ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 5548ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Give the register class a legal C name if it's anonymous. 5558ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer std::string Name = RC.getName(); 5568ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 5578ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Emit the register list now. 5588ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << " // " << Name << " Register Class...\n" 559b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper << " const uint16_t " << Name 5608ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << "[] = {\n "; 5618ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer for (unsigned i = 0, e = Order.size(); i != e; ++i) { 5628ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer Record *Reg = Order[i]; 5638ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << getQualifiedName(Reg) << ", "; 5648ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer } 5658ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "\n };\n\n"; 5669df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 5679df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer OS << " // " << Name << " Bit set.\n" 568b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper << " const uint8_t " << Name 5699df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer << "Bits[] = {\n "; 570a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer BitVectorEmitter BVE; 5719df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer for (unsigned i = 0, e = Order.size(); i != e; ++i) { 5729df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer Record *Reg = Order[i]; 5739df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer BVE.add(Target.getRegBank().getReg(Reg)->EnumValue); 5749df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer } 5759df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer BVE.print(OS); 5769df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer OS << "\n };\n\n"; 5779df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 5788ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer } 5798ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "}\n\n"; 5808ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 5811a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "extern const MCRegisterClass " << TargetName 5821a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "MCRegisterClasses[] = {\n"; 5838ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 5848ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 58529f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 586904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper 587904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper // Asserts to make sure values will fit in table assuming types from 588904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper // MCRegisterInfo.h 589904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper assert((RC.SpillSize/8) <= 0xffff && "SpillSize too large."); 590904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper assert((RC.SpillAlignment/8) <= 0xffff && "SpillAlignment too large."); 591904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper assert(RC.CopyCost >= -128 && RC.CopyCost <= 127 && "Copy cost too large."); 592904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper 59352b89dd303424582d054e18417099f3a7e343b41Craig Topper OS << " { " << '\"' << RC.getName() << "\", " 59452b89dd303424582d054e18417099f3a7e343b41Craig Topper << RC.getName() << ", " << RC.getName() << "Bits, " 59552b89dd303424582d054e18417099f3a7e343b41Craig Topper << RC.getOrder().size() << ", sizeof(" << RC.getName() << "Bits), " 59652b89dd303424582d054e18417099f3a7e343b41Craig Topper << RC.getQualifiedName() + "RegClassID" << ", " 5978ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.SpillSize/8 << ", " 5988ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.SpillAlignment/8 << ", " 5998ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.CopyCost << ", " 60052b89dd303424582d054e18417099f3a7e343b41Craig Topper << RC.Allocatable << " },\n"; 6018ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer } 6028ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 6038ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "};\n\n"; 6048ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 605b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach // Emit the data table for getSubReg(). 606b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach ArrayRef<CodeGenSubRegIndex*> SubRegIndices = RegBank.getSubRegIndices(); 607b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (SubRegIndices.size()) { 608b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper OS << "const uint16_t " << TargetName << "SubRegTable[][" 609904a01820c86dd1e2bc7aef2950ed75a2c9c2640Craig Topper << SubRegIndices.size() << "] = {\n"; 610b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 611b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach const CodeGenRegister::SubRegMap &SRM = Regs[i]->getSubRegs(); 612b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << " /* " << Regs[i]->TheDef->getName() << " */\n"; 613b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (SRM.empty()) { 614b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << " {0},\n"; 615b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach continue; 616b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach } 617b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << " {"; 618b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach for (unsigned j = 0, je = SubRegIndices.size(); j != je; ++j) { 619b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach // FIXME: We really should keep this to 80 columns... 620b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach CodeGenRegister::SubRegMap::const_iterator SubReg = 621b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach SRM.find(SubRegIndices[j]); 622b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (SubReg != SRM.end()) 623b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << getQualifiedName(SubReg->second->TheDef); 624b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach else 625b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << "0"; 626b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (j != je - 1) 627b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << ", "; 628b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach } 629b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << "}" << (i != e ? "," : "") << "\n"; 630b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach } 631b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << "};\n\n"; 632b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper OS << "const uint16_t *get" << TargetName 633b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper << "SubRegTable() {\n return (const uint16_t *)" << TargetName 634b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach << "SubRegTable;\n}\n\n"; 635b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach } 636b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach 637243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer EmitRegMappingTables(OS, Regs, false); 638243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 6390ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach // Emit Reg encoding table 6400ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << "extern const uint16_t " << TargetName; 6410ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << "RegEncodingTable[] = {\n"; 6420ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach // Add entry for NoRegister 6430ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << " 0,\n"; 6440ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 6450ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach Record *Reg = Regs[i]->TheDef; 6460ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach BitsInit *BI = Reg->getValueAsBitsInit("HWEncoding"); 6470ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach uint64_t Value = 0; 6480ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach for (unsigned b = 0, be = BI->getNumBits(); b != be; ++b) { 6490ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach if (BitInit *B = dynamic_cast<BitInit*>(BI->getBit(b))) 6500ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach Value |= (uint64_t)B->getValue() << b; 6510ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach } 6520ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << " " << Value << ",\n"; 6530ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach } 6540ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << "};\n"; // End of HW encoding table 6550ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach 65673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // MCRegisterInfo initialization routine. 65773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "static inline void Init" << TargetName 6580e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "MCRegisterInfo(MCRegisterInfo *RI, unsigned RA, " 6590e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "unsigned DwarfFlavour = 0, unsigned EHFlavour = 0) {\n"; 66073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " RI->InitMCRegisterInfo(" << TargetName << "RegDesc, " 6618ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << Regs.size()+1 << ", RA, " << TargetName << "MCRegisterClasses, " 6620d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen << RegisterClasses.size() << ", " << TargetName << "RegLists, "; 663b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (SubRegIndices.size() != 0) 664b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper OS << "(uint16_t*)" << TargetName << "SubRegTable, " 6650ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach << SubRegIndices.size() << ",\n"; 666b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach else 6670ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << "NULL, 0,\n"; 6680ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach 6690ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << " " << TargetName << "RegEncodingTable);\n\n"; 6700e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 6710e6a052331f674dd70e28af41f654a7874405eabEvan Cheng EmitRegMapping(OS, Regs, false); 6720e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 6730e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "}\n\n"; 6740e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 67573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "} // End llvm namespace \n"; 67673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#endif // GET_REGINFO_MC_DESC\n\n"; 67773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng} 678026dc223aeef2579d63f395007491e37d6cde3a0Jakob Stoklund Olesen 679ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Chengvoid 680ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan ChengRegisterInfoEmitter::runTargetHeader(raw_ostream &OS, CodeGenTarget &Target, 681ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng CodeGenRegBank &RegBank) { 682ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng EmitSourceFileHeader("Register Information Header Fragment", OS); 683ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 684ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "\n#ifdef GET_REGINFO_HEADER\n"; 685ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "#undef GET_REGINFO_HEADER\n"; 686ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 687ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng const std::string &TargetName = Target.getName(); 688ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng std::string ClassName = TargetName + "GenRegisterInfo"; 689ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 6909b1b25f0631b22cd09c2fa7383ce28721fa3e212Craig Topper OS << "#include \"llvm/Target/TargetRegisterInfo.h\"\n\n"; 691ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 692ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "namespace llvm {\n\n"; 693ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 694ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "struct " << ClassName << " : public TargetRegisterInfo {\n" 6950e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << " explicit " << ClassName 6960e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "(unsigned RA, unsigned D = 0, unsigned E = 0);\n" 697ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " virtual bool needsStackRealignment(const MachineFunction &) const\n" 698309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << " { return false; }\n"; 699309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen if (!RegBank.getSubRegIndices().empty()) { 700309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << " unsigned composeSubRegIndices(unsigned, unsigned) const;\n" 701309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << " const TargetRegisterClass *" 702dd63a063e2df0d0bc52b50732e3462fd58a636c0Jakob Stoklund Olesen "getSubClassWithSubReg(const TargetRegisterClass*, unsigned) const;\n"; 703309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen } 704309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << " const RegClassWeight &getRegClassWeight(" 705ec14cd7ddc66d47cd7927f18d8c11844c400367eAndrew Trick << "const TargetRegisterClass *RC) const;\n" 706176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " unsigned getNumRegPressureSets() const;\n" 7077c0903a924b110dad0648e0b6cbdd2f38496fe28Andrew Trick << " const char *getRegPressureSetName(unsigned Idx) const;\n" 708176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " unsigned getRegPressureSetLimit(unsigned Idx) const;\n" 709176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << " const int *getRegClassPressureSets(" 710176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick << "const TargetRegisterClass *RC) const;\n" 711ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << "};\n\n"; 712ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 71329f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses(); 714ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 715ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng if (!RegisterClasses.empty()) { 71629f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen OS << "namespace " << RegisterClasses[0]->Namespace 717ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " { // Register classes\n"; 718ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 719ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 72029f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[i]; 721ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng const std::string &Name = RC.getName(); 722ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 723ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng // Output the extern for the instance. 724ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << " extern const TargetRegisterClass " << Name << "RegClass;\n"; 725ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng } 726ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "} // end of namespace " << TargetName << "\n\n"; 727ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng } 728ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "} // End llvm namespace \n"; 729ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "#endif // GET_REGINFO_HEADER\n\n"; 730ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng} 731ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 73273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// 73373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// runTargetDesc - Output the target register and register file descriptions. 73473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// 73573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid 73673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan ChengRegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target, 73773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng CodeGenRegBank &RegBank){ 73873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng EmitSourceFileHeader("Target Register and Register Classes Information", OS); 73973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 74073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n#ifdef GET_REGINFO_TARGET_DESC\n"; 74173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#undef GET_REGINFO_TARGET_DESC\n"; 74254d156d33324b7715453993f21684915a28e310aChris Lattner 7432c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "namespace llvm {\n\n"; 7442c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner 745f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer // Get access to MCRegisterClass data. 7461a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "extern const MCRegisterClass " << Target.getName() 7471a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "MCRegisterClasses[];\n"; 748f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer 749f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen // Start out by emitting each of the register classes. 75029f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses(); 7516a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen ArrayRef<CodeGenSubRegIndex*> SubRegIndices = RegBank.getSubRegIndices(); 7526a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen 753f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen // Collect all registers belonging to any allocatable class. 754f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen std::set<Record*> AllocatableRegs; 755f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen 756f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer // Collect allocatable registers. 75754d156d33324b7715453993f21684915a28e310aChris Lattner for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 75829f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 759ae1920b1efa72c1789d562df4746110d0c2e10bdJakob Stoklund Olesen ArrayRef<Record*> Order = RC.getOrder(); 760c7df109b6c4f7cbf8cc4dbee90291d4e452c7d56Chris Lattner 761f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen if (RC.Allocatable) 762ae1920b1efa72c1789d562df4746110d0c2e10bdJakob Stoklund Olesen AllocatableRegs.insert(Order.begin(), Order.end()); 76342de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner } 7648d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 7650d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen // Build a shared array of value types. 7660d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen SequenceToOffsetTable<std::vector<MVT::SimpleValueType> > VTSeqs; 7670d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) 7680d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen VTSeqs.add(RegisterClasses[rc]->VTs); 7690d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen VTSeqs.layout(); 7700d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << "\nstatic const MVT::SimpleValueType VTLists[] = {\n"; 7710d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen VTSeqs.emit(OS, printSimpleValueType, "MVT::Other"); 7720d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << "};\n"; 7735d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 7746a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // Emit SubRegIndex names, skipping 0 7756a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\nstatic const char *const SubRegIndexTable[] = { \""; 7766a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) { 7776a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << SubRegIndices[i]->getName(); 7786a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen if (i+1 != e) 7796a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\", \""; 7806a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen } 7816a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\" };\n\n"; 7826a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen 7836a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // Emit names of the anonymous subreg indices. 7846a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen unsigned NamedIndices = RegBank.getNumNamedIndices(); 7856a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen if (SubRegIndices.size() > NamedIndices) { 7866a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << " enum {"; 7876a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen for (unsigned i = NamedIndices, e = SubRegIndices.size(); i != e; ++i) { 7886a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\n " << SubRegIndices[i]->getName() << " = " << i+1; 7896a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen if (i+1 != e) 7906a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << ','; 7916a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen } 7926a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\n };\n\n"; 7936a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen } 7946a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\n"; 7956a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen 79642de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner // Now that all of the structs have been emitted, emit the instances. 79742de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner if (!RegisterClasses.empty()) { 798ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << "\nstatic const TargetRegisterClass *const " 799ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << "NullRegClasses[] = { NULL };\n\n"; 8001367fd09cb021bae61e7dd2ee208f76574c8e789Christopher Lamb 8016a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // Emit register class bit mask tables. The first bit mask emitted for a 8026a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // register class, RC, is the set of sub-classes, including RC itself. 8036a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // 8046a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // If RC has super-registers, also create a list of subreg indices and bit 8056a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // masks, (Idx, Mask). The bit mask has a bit for every superreg regclass, 8066a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // SuperRC, that satisfies: 8076a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // 8086a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // For all SuperReg in SuperRC: SuperReg:Idx in RC 8096a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // 8106a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // The 0-terminated list of subreg indices starts at: 8116a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // 8121a2a19dd3ce2b163837b5f0a1ea474c72527cad6Jakob Stoklund Olesen // RC->getSuperRegIndices() = SuperRegIdxSeqs + ... 8136a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // 8146a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // The corresponding bitmasks follow the sub-class mask in memory. Each 8156a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // mask has RCMaskWords uint32_t entries. 8166a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // 8176a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // Every bit mask present in the list has at least one bit set. 8188d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 8196a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // Compress the sub-reg index lists. 8206a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen typedef std::vector<const CodeGenSubRegIndex*> IdxList; 8216a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen SmallVector<IdxList, 8> SuperRegIdxLists(RegisterClasses.size()); 8226a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen SequenceToOffsetTable<IdxList> SuperRegIdxSeqs; 8236a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen BitVector MaskBV(RegisterClasses.size()); 8248d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 8256a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 8266a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 8276a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "static const uint32_t " << RC.getName() << "SubClassMask[] = {\n "; 828c8e2bb68bbc4a71cc10084c8f89565b9f05e12efJakob Stoklund Olesen printBitVectorAsHex(OS, RC.getSubClasses(), 32); 8296a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen 8306a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // Emit super-reg class masks for any relevant SubRegIndices that can 8316a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen // project into RC. 8326a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen IdxList &SRIList = SuperRegIdxLists[rc]; 8336a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) { 8346a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen CodeGenSubRegIndex *Idx = SubRegIndices[sri]; 8356a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen MaskBV.reset(); 8366a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen RC.getSuperRegClasses(Idx, MaskBV); 8376a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen if (MaskBV.none()) 8386a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen continue; 8396a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen SRIList.push_back(Idx); 8406a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "\n "; 8416a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen printBitVectorAsHex(OS, MaskBV, 32); 8426a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "// " << Idx->getName(); 8436a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen } 8446a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen SuperRegIdxSeqs.add(SRIList); 845ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << "\n};\n\n"; 8468d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng } 8478d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 8486a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "static const uint16_t SuperRegIdxSeqs[] = {\n"; 8496a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen SuperRegIdxSeqs.layout(); 8506a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen SuperRegIdxSeqs.emit(OS, printSubRegIndex); 8516a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen OS << "};\n\n"; 8526a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen 853f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen // Emit NULL terminated super-class lists. 8542ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 85529f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 856f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> Supers = RC.getSuperClasses(); 8572ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng 858f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen // Skip classes without supers. We can reuse NullRegClasses. 859f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen if (Supers.empty()) 860f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen continue; 8612ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng 862ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << "static const TargetRegisterClass *const " 863f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen << RC.getName() << "Superclasses[] = {\n"; 864f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen for (unsigned i = 0; i != Supers.size(); ++i) 865ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << " &" << Supers[i]->getQualifiedName() << "RegClass,\n"; 866ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << " NULL\n};\n\n"; 8672ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng } 8682ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng 869b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen // Emit methods. 87060200e5d32f63b4e54575f5cbec348f3f9baeb5dChris Lattner for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 87129f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[i]; 872b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen if (!RC.AltOrderSelect.empty()) { 873b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen OS << "\nstatic inline unsigned " << RC.getName() 874b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << "AltOrderSelect(const MachineFunction &MF) {" 875ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << RC.AltOrderSelect << "}\n\n" 876b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper << "static ArrayRef<uint16_t> " << RC.getName() 877ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << "GetRawAllocationOrder(const MachineFunction &MF) {\n"; 878b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen for (unsigned oi = 1 , oe = RC.getNumOrders(); oi != oe; ++oi) { 879b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen ArrayRef<Record*> Elems = RC.getOrder(oi); 880f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen if (!Elems.empty()) { 881b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper OS << " static const uint16_t AltOrder" << oi << "[] = {"; 882f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen for (unsigned elem = 0; elem != Elems.size(); ++elem) 883f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << (elem ? ", " : " ") << getQualifiedName(Elems[elem]); 884f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << " };\n"; 885f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen } 886b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen } 887f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer OS << " const MCRegisterClass &MCR = " << Target.getName() 888f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen << "MCRegisterClasses[" << RC.getQualifiedName() + "RegClassID];\n" 889b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper << " const ArrayRef<uint16_t> Order[] = {\n" 890f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << " makeArrayRef(MCR.begin(), MCR.getNumRegs()"; 891b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen for (unsigned oi = 1, oe = RC.getNumOrders(); oi != oe; ++oi) 892f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen if (RC.getOrder(oi).empty()) 893b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper OS << "),\n ArrayRef<uint16_t>("; 894f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen else 895f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << "),\n makeArrayRef(AltOrder" << oi; 896b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen OS << ")\n };\n const unsigned Select = " << RC.getName() 897b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << "AltOrderSelect(MF);\n assert(Select < " << RC.getNumOrders() 898b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << ");\n return Order[Select];\n}\n"; 899b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen } 90060200e5d32f63b4e54575f5cbec348f3f9baeb5dChris Lattner } 9015d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 902ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer // Now emit the actual value-initialized register class instances. 903ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << "namespace " << RegisterClasses[0]->Namespace 904ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << " { // Register class instances\n"; 905ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer 906ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 907ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer const CodeGenRegisterClass &RC = *RegisterClasses[i]; 908ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << " extern const TargetRegisterClass " 909ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << RegisterClasses[i]->getName() << "RegClass = {\n " 910ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << '&' << Target.getName() << "MCRegisterClasses[" << RC.getName() 911ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer << "RegClassID],\n " 9120d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen << "VTLists + " << VTSeqs.get(RC.VTs) << ",\n " 9131a2a19dd3ce2b163837b5f0a1ea474c72527cad6Jakob Stoklund Olesen << RC.getName() << "SubClassMask,\n SuperRegIdxSeqs + " 9141a2a19dd3ce2b163837b5f0a1ea474c72527cad6Jakob Stoklund Olesen << SuperRegIdxSeqs.get(SuperRegIdxLists[i]) << ",\n "; 915ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer if (RC.getSuperClasses().empty()) 916ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << "NullRegClasses,\n "; 917ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer else 918ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << RC.getName() << "Superclasses,\n "; 919ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer if (RC.AltOrderSelect.empty()) 920ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << "0\n"; 921ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer else 922ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << RC.getName() << "GetRawAllocationOrder\n"; 923ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer OS << " };\n\n"; 924ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer } 925ccc8d3ba06408feff0ca6e58973c20d15010e3fcBenjamin Kramer 92642de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner OS << "}\n"; 9279fff8919eefa377936918eec763b392e59049353Chris Lattner } 9289fff8919eefa377936918eec763b392e59049353Chris Lattner 92942de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner OS << "\nnamespace {\n"; 9309fff8919eefa377936918eec763b392e59049353Chris Lattner OS << " const TargetRegisterClass* const RegisterClasses[] = {\n"; 93142de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) 9326fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen OS << " &" << RegisterClasses[i]->getQualifiedName() 93360200e5d32f63b4e54575f5cbec348f3f9baeb5dChris Lattner << "RegClass,\n"; 9349fff8919eefa377936918eec763b392e59049353Chris Lattner OS << " };\n"; 935c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "}\n"; // End of anonymous namespace... 93654d156d33324b7715453993f21684915a28e310aChris Lattner 937a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng // Emit extra information about registers. 9386844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng const std::string &TargetName = Target.getName(); 9399b1b25f0631b22cd09c2fa7383ce28721fa3e212Craig Topper OS << "\nstatic const TargetRegisterInfoDesc " 9409b1b25f0631b22cd09c2fa7383ce28721fa3e212Craig Topper << TargetName << "RegInfoDesc[] = { // Extra Descriptors\n"; 9419b1b25f0631b22cd09c2fa7383ce28721fa3e212Craig Topper OS << " { 0, 0 },\n"; 94226693113201f4c9d441678e50d96f38d3288798eChris Lattner 943a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters(); 94476f0ad7bf5c05d6056b3bf335d0c3fb7e72de5d6Jakob Stoklund Olesen for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 945abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen const CodeGenRegister &Reg = *Regs[i]; 9469b1b25f0631b22cd09c2fa7383ce28721fa3e212Craig Topper OS << " { "; 947a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng OS << Reg.CostPerUse << ", " 948f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen << int(AllocatableRegs.count(Reg.TheDef)) << " },\n"; 9499fff8919eefa377936918eec763b392e59049353Chris Lattner } 9509b1b25f0631b22cd09c2fa7383ce28721fa3e212Craig Topper OS << "};\n"; // End of register descriptors... 9511fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen 952a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng 9537884b750c33b750177b3f22af75c874c97f728d8Chris Lattner std::string ClassName = Target.getName() + "GenRegisterInfo"; 9543da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman 9557c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen // Emit composeSubRegIndices 956309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen if (!SubRegIndices.empty()) { 957309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << "unsigned " << ClassName 958309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << "::composeSubRegIndices(unsigned IdxA, unsigned IdxB) const {\n" 959309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << " switch (IdxA) {\n" 960309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << " default:\n return IdxB;\n"; 961309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) { 962309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen bool Open = false; 963309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen for (unsigned j = 0; j != e; ++j) { 964309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen if (CodeGenSubRegIndex *Comp = 96590498b195ba759cf4f2a98da4e46fb9a2b580396Jakob Stoklund Olesen SubRegIndices[i]->compose(SubRegIndices[j])) { 966309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen if (!Open) { 967309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << " case " << SubRegIndices[i]->getQualifiedName() 968309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << ": switch(IdxB) {\n default: return IdxB;\n"; 969309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen Open = true; 970309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen } 971309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << " case " << SubRegIndices[j]->getQualifiedName() 972309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << ": return " << Comp->getQualifiedName() << ";\n"; 9737c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 9747c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 975309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen if (Open) 976309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << " }\n"; 9777c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 978309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << " }\n}\n\n"; 9797c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 9807c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen 981845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen // Emit getSubClassWithSubReg. 982309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen if (!SubRegIndices.empty()) { 983309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen OS << "const TargetRegisterClass *" << ClassName 984309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << "::getSubClassWithSubReg(const TargetRegisterClass *RC, unsigned Idx)" 985309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << " const {\n"; 986845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen // Use the smallest type that can hold a regclass ID with room for a 987845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen // sentinel. 988845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen if (RegisterClasses.size() < UINT8_MAX) 989845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " static const uint8_t Table["; 990845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen else if (RegisterClasses.size() < UINT16_MAX) 991845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " static const uint16_t Table["; 992845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen else 993845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen throw "Too many register classes."; 994845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << RegisterClasses.size() << "][" << SubRegIndices.size() << "] = {\n"; 995845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen for (unsigned rci = 0, rce = RegisterClasses.size(); rci != rce; ++rci) { 996845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rci]; 997845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " {\t// " << RC.getName() << "\n"; 998845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) { 9995fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen CodeGenSubRegIndex *Idx = SubRegIndices[sri]; 1000845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen if (CodeGenRegisterClass *SRC = RC.getSubClassWithSubReg(Idx)) 1001845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " " << SRC->EnumValue + 1 << ",\t// " << Idx->getName() 1002845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " -> " << SRC->getName() << "\n"; 1003845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen else 1004845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " 0,\t// " << Idx->getName() << "\n"; 1005845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } 1006845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " },\n"; 1007845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } 1008845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " };\n assert(RC && \"Missing regclass\");\n" 1009845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " if (!Idx) return RC;\n --Idx;\n" 1010845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " assert(Idx < " << SubRegIndices.size() << " && \"Bad subreg\");\n" 1011845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " unsigned TV = Table[RC->getID()][Idx];\n" 1012309076ff76c61e03ddd3a0fbbfded3042d2da2e5Jakob Stoklund Olesen << " return TV ? getRegClass(TV - 1) : 0;\n}\n\n"; 1013845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } 1014845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen 1015176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick EmitRegUnitPressure(OS, RegBank, ClassName); 1016176194d4ee2774bc135ababc5bd6c6c9f606b2a5Andrew Trick 10179fff8919eefa377936918eec763b392e59049353Chris Lattner // Emit the constructor of the class... 10181a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "extern const MCRegisterDesc " << TargetName << "RegDesc[];\n"; 10190d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen OS << "extern const uint16_t " << TargetName << "RegLists[];\n"; 1020b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (SubRegIndices.size() != 0) 1021b6632ba380cf624e60fe16b03d6e21b05dd07724Craig Topper OS << "extern const uint16_t *get" << TargetName 1022b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach << "SubRegTable();\n"; 10230ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << "extern const uint16_t " << TargetName << "RegEncodingTable[];\n"; 1024c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng 1025243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer EmitRegMappingTables(OS, Regs, true); 1026243018ffcf764e4dde2968f909f4a2e578aafe86Benjamin Kramer 1027b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << ClassName << "::\n" << ClassName 10280e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "(unsigned RA, unsigned DwarfFlavour, unsigned EHFlavour)\n" 10296844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng << " : TargetRegisterInfo(" << TargetName << "RegInfoDesc" 10301fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen << ", RegisterClasses, RegisterClasses+" << RegisterClasses.size() <<",\n" 10316a0ed18532425d637ecc1cc851c559db446ec4e8Jakob Stoklund Olesen << " SubRegIndexTable) {\n" 10326844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng << " InitMCRegisterInfo(" << TargetName << "RegDesc, " 1033b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach << Regs.size()+1 << ", RA,\n " << TargetName 1034b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach << "MCRegisterClasses, " << RegisterClasses.size() << ",\n" 10350d4e2ea00eac5d51a74a54dd504a8f34580041d7Jakob Stoklund Olesen << " " << TargetName << "RegLists,\n" 1036b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach << " "; 1037b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach if (SubRegIndices.size() != 0) 1038b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach OS << "get" << TargetName << "SubRegTable(), " 10390ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach << SubRegIndices.size() << ",\n"; 1040b3acdcc00c9dfb01663780e858e586cc5f04423fJim Grosbach else 10410ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << "NULL, 0,\n"; 10420ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach 10430ee07e013095e8c298fbcc5203e0bc9f334e15e1Jim Grosbach OS << " " << TargetName << "RegEncodingTable);\n\n"; 10445d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 10450e6a052331f674dd70e28af41f654a7874405eabEvan Cheng EmitRegMapping(OS, Regs, true); 10465d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 10470e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "}\n\n"; 10484794797f1213c4096a6f5ff2b6841dd5866b22baChris Lattner 1049ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 1050ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen // Emit CalleeSavedRegs information. 1051ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen std::vector<Record*> CSRSets = 1052ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen Records.getAllDerivedDefinitions("CalleeSavedRegs"); 1053ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen for (unsigned i = 0, e = CSRSets.size(); i != e; ++i) { 1054ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen Record *CSRSet = CSRSets[i]; 1055ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen const SetTheory::RecVec *Regs = RegBank.getSets().expand(CSRSet); 1056ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen assert(Regs && "Cannot expand CalleeSavedRegs instance"); 1057ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 1058ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen // Emit the *_SaveList list of callee-saved registers. 1059015f228861ef9b337366f92f637d4e8d624bb006Craig Topper OS << "static const uint16_t " << CSRSet->getName() 1060ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen << "_SaveList[] = { "; 1061ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen for (unsigned r = 0, re = Regs->size(); r != re; ++r) 1062ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << getQualifiedName((*Regs)[r]) << ", "; 1063ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "0 };\n"; 1064ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 1065ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen // Emit the *_RegMask bit mask of call-preserved registers. 1066ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "static const uint32_t " << CSRSet->getName() 1067ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen << "_RegMask[] = { "; 1068ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen printBitVectorAsHex(OS, RegBank.computeCoveredRegisters(*Regs), 32); 1069ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "};\n"; 1070ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen } 1071ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "\n\n"; 1072ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 10732c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "} // End llvm namespace \n"; 107473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#endif // GET_REGINFO_TARGET_DESC\n\n"; 10753112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner} 1076a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng 107773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid RegisterInfoEmitter::run(raw_ostream &OS) { 1078a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng CodeGenTarget Target(Records); 1079a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng CodeGenRegBank &RegBank = Target.getRegBank(); 1080a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng RegBank.computeDerivedInfo(); 1081a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng 108273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng runEnums(OS, Target, RegBank); 108373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng runMCDesc(OS, Target, RegBank); 1084ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng runTargetHeader(OS, Target, RegBank); 108573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng runTargetDesc(OS, Target, RegBank); 1086a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng} 1087