RegisterInfoEmitter.cpp revision 655b8de7b2ab773a977e0c524307e71354d8af29
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" 197c788888872233748da10a8177a9a1eb176c1bc8Peter Collingbourne#include "llvm/TableGen/Record.h" 209df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer#include "llvm/ADT/BitVector.h" 21551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/ADT/StringExtras.h" 22551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/ADT/STLExtras.h" 234091b059ec9568228f50fd67a1a81ee35c234787Jakob Stoklund Olesen#include "llvm/Support/Format.h" 24cc51c3195374645b18918458bac02e85b8c27db6Chuck Rose III#include <algorithm> 251a55180238dbcf11113f610aea010447e51f595bDaniel Dunbar#include <set> 262082ebe8b3a5db302748828ab4f79a36d239c1d9Chris Lattnerusing namespace llvm; 27d0fde30ce850b78371fd1386338350591f9ff494Brian Gaeke 2854d156d33324b7715453993f21684915a28e310aChris Lattner// runEnums - Print out enum values for all of the registers. 2973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid 3073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan ChengRegisterInfoEmitter::runEnums(raw_ostream &OS, 3173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng CodeGenTarget &Target, CodeGenRegBank &Bank) { 32abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen const std::vector<CodeGenRegister*> &Registers = Bank.getRegisters(); 3354d156d33324b7715453993f21684915a28e310aChris Lattner 34abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen std::string Namespace = Registers[0]->TheDef->getValueAsString("Namespace"); 3554d156d33324b7715453993f21684915a28e310aChris Lattner 360e5e49e6888c354ff95fc9e56d0881af78cb4269Chris Lattner EmitSourceFileHeader("Target Register Enum Values", OS); 3773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 3873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n#ifdef GET_REGINFO_ENUM\n"; 3973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#undef GET_REGINFO_ENUM\n"; 4073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 412c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "namespace llvm {\n\n"; 4254d156d33324b7715453993f21684915a28e310aChris Lattner 435de728cfe1a922ac9b13546dca94526b2fa693b6Evan Cheng OS << "class MCRegisterClass;\n" 441a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "extern const MCRegisterClass " << Namespace 451a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "MCRegisterClasses[];\n\n"; 465de728cfe1a922ac9b13546dca94526b2fa693b6Evan Cheng 4754d156d33324b7715453993f21684915a28e310aChris Lattner if (!Namespace.empty()) 4854d156d33324b7715453993f21684915a28e310aChris Lattner OS << "namespace " << Namespace << " {\n"; 4973ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen OS << "enum {\n NoRegister,\n"; 5054d156d33324b7715453993f21684915a28e310aChris Lattner 5154d156d33324b7715453993f21684915a28e310aChris Lattner for (unsigned i = 0, e = Registers.size(); i != e; ++i) 52abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen OS << " " << Registers[i]->getName() << " = " << 53abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen Registers[i]->EnumValue << ",\n"; 54abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen assert(Registers.size() == Registers[Registers.size()-1]->EnumValue && 5517fad045cccf34822d3163ada9e70a8f4528746eJim Grosbach "Register enum value mismatch!"); 5673ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen OS << " NUM_TARGET_REGS \t// " << Registers.size()+1 << "\n"; 5773ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen OS << "};\n"; 5854d156d33324b7715453993f21684915a28e310aChris Lattner if (!Namespace.empty()) 5954d156d33324b7715453993f21684915a28e310aChris Lattner OS << "}\n"; 6073ea7bf4509663267317ec3911aac00ca35a2f2cJakob Stoklund Olesen 6129f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = Bank.getRegClasses(); 6273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (!RegisterClasses.empty()) { 6373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n// Register classes\n"; 644987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 654987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "namespace " << Namespace << " {\n"; 6673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "enum {\n"; 6773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 6873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (i) OS << ",\n"; 6929f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen OS << " " << RegisterClasses[i]->getName() << "RegClassID"; 7073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " = " << i; 7173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 7273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n };\n"; 734987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 744987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "}\n"; 754987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng } 764987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng 774987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng const std::vector<Record*> RegAltNameIndices = Target.getRegAltNameIndices(); 784987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng // If the only definition is the default NoRegAltName, we don't need to 794987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng // emit anything. 804987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (RegAltNameIndices.size() > 1) { 814987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "\n// Register alternate name indices\n"; 824987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 834987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "namespace " << Namespace << " {\n"; 844987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "enum {\n"; 854987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng for (unsigned i = 0, e = RegAltNameIndices.size(); i != e; ++i) 864987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << " " << RegAltNameIndices[i]->getName() << ",\t// " << i << "\n"; 874987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << " NUM_TARGET_REG_ALT_NAMES = " << RegAltNameIndices.size() << "\n"; 884987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "};\n"; 894987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng if (!Namespace.empty()) 904987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng OS << "}\n"; 9173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 9273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 934987033fbd8e774e67903f50a8bd20d539c4dca5Evan Cheng 942c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "} // End llvm namespace \n"; 9573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#endif // GET_REGINFO_ENUM\n\n"; 9654d156d33324b7715453993f21684915a28e310aChris Lattner} 9754d156d33324b7715453993f21684915a28e310aChris Lattner 980e6a052331f674dd70e28af41f654a7874405eabEvan Chengvoid 990e6a052331f674dd70e28af41f654a7874405eabEvan ChengRegisterInfoEmitter::EmitRegMapping(raw_ostream &OS, 1000e6a052331f674dd70e28af41f654a7874405eabEvan Cheng const std::vector<CodeGenRegister*> &Regs, 1010e6a052331f674dd70e28af41f654a7874405eabEvan Cheng bool isCtor) { 1020e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1030e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Collect all information about dwarf register numbers 1040e6a052331f674dd70e28af41f654a7874405eabEvan Cheng typedef std::map<Record*, std::vector<int64_t>, LessRecord> DwarfRegNumsMapTy; 1050e6a052331f674dd70e28af41f654a7874405eabEvan Cheng DwarfRegNumsMapTy DwarfRegNums; 1060e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1070e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // First, just pull all provided information to the map 1080e6a052331f674dd70e28af41f654a7874405eabEvan Cheng unsigned maxLength = 0; 1090e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 1100e6a052331f674dd70e28af41f654a7874405eabEvan Cheng Record *Reg = Regs[i]->TheDef; 1110e6a052331f674dd70e28af41f654a7874405eabEvan Cheng std::vector<int64_t> RegNums = Reg->getValueAsListOfInts("DwarfNumbers"); 1120e6a052331f674dd70e28af41f654a7874405eabEvan Cheng maxLength = std::max((size_t)maxLength, RegNums.size()); 1130e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (DwarfRegNums.count(Reg)) 1140e6a052331f674dd70e28af41f654a7874405eabEvan Cheng errs() << "Warning: DWARF numbers for register " << getQualifiedName(Reg) 1150e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "specified multiple times\n"; 1160e6a052331f674dd70e28af41f654a7874405eabEvan Cheng DwarfRegNums[Reg] = RegNums; 1170e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 1180e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1190e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (!maxLength) 1200e6a052331f674dd70e28af41f654a7874405eabEvan Cheng return; 1210e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1220e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Now we know maximal length of number list. Append -1's, where needed 1230e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (DwarfRegNumsMapTy::iterator 1240e6a052331f674dd70e28af41f654a7874405eabEvan Cheng I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) 1250e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = I->second.size(), e = maxLength; i != e; ++i) 1260e6a052331f674dd70e28af41f654a7874405eabEvan Cheng I->second.push_back(-1); 1270e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1280e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Emit reverse information about the dwarf register numbers. 1290e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned j = 0; j < 2; ++j) { 1300e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " switch ("; 1310e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (j == 0) 1320e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "DwarfFlavour"; 1330e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 1340e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "EHFlavour"; 1350e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << ") {\n" 1360e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << " default:\n" 137655b8de7b2ab773a977e0c524307e71354d8af29Craig Topper << " llvm_unreachable(\"Unknown DWARF flavour\");\n"; 1380e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1390e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = maxLength; i != e; ++i) { 1400e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " case " << i << ":\n"; 1410e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (DwarfRegNumsMapTy::iterator 1420e6a052331f674dd70e28af41f654a7874405eabEvan Cheng I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) { 1430e6a052331f674dd70e28af41f654a7874405eabEvan Cheng int DwarfRegNo = I->second[i]; 1440e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (DwarfRegNo < 0) 1450e6a052331f674dd70e28af41f654a7874405eabEvan Cheng continue; 1460e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " "; 1470e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (!isCtor) 1480e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "RI->"; 1490e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "mapDwarfRegToLLVMReg(" << DwarfRegNo << ", " 1500e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << getQualifiedName(I->first) << ", "; 1510e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (j == 0) 1520e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "false"; 1530e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 1540e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "true"; 1550e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " );\n"; 1560e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 1570e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " break;\n"; 1580e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 1590e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " }\n"; 1600e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 1610e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1620e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 1630e6a052331f674dd70e28af41f654a7874405eabEvan Cheng Record *Reg = Regs[i]->TheDef; 1640e6a052331f674dd70e28af41f654a7874405eabEvan Cheng const RecordVal *V = Reg->getValue("DwarfAlias"); 1650e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (!V || !V->getValue()) 1660e6a052331f674dd70e28af41f654a7874405eabEvan Cheng continue; 1670e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 16805bce0beee87512e52428d4b80f5a8e79a949576David Greene DefInit *DI = dynamic_cast<DefInit*>(V->getValue()); 1690e6a052331f674dd70e28af41f654a7874405eabEvan Cheng Record *Alias = DI->getDef(); 1700e6a052331f674dd70e28af41f654a7874405eabEvan Cheng DwarfRegNums[Reg] = DwarfRegNums[Alias]; 1710e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 1720e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1730e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Emit information about the dwarf register numbers. 1740e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned j = 0; j < 2; ++j) { 1750e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " switch ("; 1760e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (j == 0) 1770e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "DwarfFlavour"; 1780e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 1790e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "EHFlavour"; 1800e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << ") {\n" 1810e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << " default:\n" 182655b8de7b2ab773a977e0c524307e71354d8af29Craig Topper << " llvm_unreachable(\"Unknown DWARF flavour\");\n"; 1830e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 1840e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (unsigned i = 0, e = maxLength; i != e; ++i) { 1850e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " case " << i << ":\n"; 1860e6a052331f674dd70e28af41f654a7874405eabEvan Cheng // Sort by name to get a stable order. 1870e6a052331f674dd70e28af41f654a7874405eabEvan Cheng for (DwarfRegNumsMapTy::iterator 1880e6a052331f674dd70e28af41f654a7874405eabEvan Cheng I = DwarfRegNums.begin(), E = DwarfRegNums.end(); I != E; ++I) { 1890e6a052331f674dd70e28af41f654a7874405eabEvan Cheng int RegNo = I->second[i]; 1900e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " "; 1910e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (!isCtor) 1920e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "RI->"; 1930e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "mapLLVMRegToDwarfReg(" << getQualifiedName(I->first) << ", " 1940e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << RegNo << ", "; 1950e6a052331f674dd70e28af41f654a7874405eabEvan Cheng if (j == 0) 1960e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "false"; 1970e6a052331f674dd70e28af41f654a7874405eabEvan Cheng else 1980e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "true"; 1990e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " );\n"; 2000e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 2010e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " break;\n"; 2020e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 2030e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << " }\n"; 2040e6a052331f674dd70e28af41f654a7874405eabEvan Cheng } 2050e6a052331f674dd70e28af41f654a7874405eabEvan Cheng} 2060e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 207b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen// Print a BitVector as a sequence of hex numbers using a little-endian mapping. 208b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen// Width is the number of bits per hex number. 209b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesenstatic void printBitVectorAsHex(raw_ostream &OS, 210b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen const BitVector &Bits, 211b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen unsigned Width) { 212b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen assert(Width <= 32 && "Width too large"); 213b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen unsigned Digits = (Width + 3) / 4; 214b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen for (unsigned i = 0, e = Bits.size(); i < e; i += Width) { 215b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen unsigned Value = 0; 216b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen for (unsigned j = 0; j != Width && i + j != e; ++j) 217b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen Value |= Bits.test(i + j) << j; 218b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen OS << format("0x%0*x, ", Digits, Value); 219b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen } 220b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen} 221b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen 2229df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer// Helper to emit a set of bits into a constant byte array. 2239df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramerclass BitVectorEmitter { 2249df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer BitVector Values; 2259df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramerpublic: 226a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer void add(unsigned v) { 227a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer if (v >= Values.size()) 228a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer Values.resize(((v/8)+1)*8); // Round up to the next byte. 229a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer Values[v] = true; 2309df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer } 2319df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 2329df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer void print(raw_ostream &OS) { 233b7359e384f7d15d3e24b3763ed66546e497fe213Jakob Stoklund Olesen printBitVectorAsHex(OS, Values, 8); 2349df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer } 2359df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer}; 2369df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 2374091b059ec9568228f50fd67a1a81ee35c234787Jakob Stoklund Olesen// 23873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// runMCDesc - Print out MC register descriptions. 23954d156d33324b7715453993f21684915a28e310aChris Lattner// 24073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid 24173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan ChengRegisterInfoEmitter::runMCDesc(raw_ostream &OS, CodeGenTarget &Target, 24273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng CodeGenRegBank &RegBank) { 24373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng EmitSourceFileHeader("MC Register Information", OS); 24473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 24573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n#ifdef GET_REGINFO_MC_DESC\n"; 24673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#undef GET_REGINFO_MC_DESC\n"; 24773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 24873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng std::map<const CodeGenRegister*, CodeGenRegister::Set> Overlaps; 24973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng RegBank.computeOverlaps(Overlaps); 25073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 25173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "namespace llvm {\n\n"; 25273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 25373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const std::string &TargetName = Target.getName(); 25473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 25573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\nnamespace {\n"; 25673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 25773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters(); 25873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 25973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Emit an overlap list for all registers. 26073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 26173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister *Reg = Regs[i]; 26273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister::Set &O = Overlaps[Reg]; 26373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Move Reg to the front so TRI::getAliasSet can share the list. 26473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " const unsigned " << Reg->getName() << "_Overlaps[] = { " 26573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng << getQualifiedName(Reg->TheDef) << ", "; 26673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (CodeGenRegister::Set::const_iterator I = O.begin(), E = O.end(); 26773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng I != E; ++I) 26873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (*I != Reg) 26973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << getQualifiedName((*I)->TheDef) << ", "; 27073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "0 };\n"; 27173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 27273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 27373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Emit the empty sub-registers list 27473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " const unsigned Empty_SubRegsSet[] = { 0 };\n"; 27573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Loop over all of the registers which have sub-registers, emitting the 27673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // sub-registers list to memory. 27773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 27873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister &Reg = *Regs[i]; 27973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (Reg.getSubRegs().empty()) 28073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng continue; 28173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // getSubRegs() orders by SubRegIndex. We want a topological order. 28273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng SetVector<CodeGenRegister*> SR; 2835fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen Reg.addSubRegsPreOrder(SR, RegBank); 28473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " const unsigned " << Reg.getName() << "_SubRegsSet[] = { "; 28573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned j = 0, je = SR.size(); j != je; ++j) 28673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << getQualifiedName(SR[j]->TheDef) << ", "; 28773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "0 };\n"; 28873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 28973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 29073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Emit the empty super-registers list 29173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " const unsigned Empty_SuperRegsSet[] = { 0 };\n"; 29273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Loop over all of the registers which have super-registers, emitting the 29373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // super-registers list to memory. 29473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 29573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister &Reg = *Regs[i]; 29673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister::SuperRegList &SR = Reg.getSuperRegs(); 29773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (SR.empty()) 29873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng continue; 29973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " const unsigned " << Reg.getName() << "_SuperRegsSet[] = { "; 30073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned j = 0, je = SR.size(); j != je; ++j) 30173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << getQualifiedName(SR[j]->TheDef) << ", "; 30273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "0 };\n"; 30373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 304c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "}\n"; // End of anonymous namespace... 30573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 3061a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "\nextern const MCRegisterDesc " << TargetName 30773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng << "RegDesc[] = { // Descriptors\n"; 308c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << " { \"NOREG\",\t0,\t0,\t0 },\n"; 30973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 31073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // Now that register alias and sub-registers sets have been emitted, emit the 31173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // register descriptors now. 31273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 31373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng const CodeGenRegister &Reg = *Regs[i]; 314c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << " { \""; 31573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << Reg.getName() << "\",\t" << Reg.getName() << "_Overlaps,\t"; 31673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (!Reg.getSubRegs().empty()) 31773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << Reg.getName() << "_SubRegsSet,\t"; 31873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng else 31973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "Empty_SubRegsSet,\t"; 32073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng if (!Reg.getSuperRegs().empty()) 32173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << Reg.getName() << "_SuperRegsSet"; 32273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng else 32373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "Empty_SuperRegsSet"; 32473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " },\n"; 32573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng } 326c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "};\n\n"; // End of register descriptors... 32773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 32829f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses(); 3298ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3308ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Loop over all of the register classes... emitting each one. 3318ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "namespace { // Register classes...\n"; 3328ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3338ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Emit the register enum value arrays for each RegisterClass 3348ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 33529f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 3368ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer ArrayRef<Record*> Order = RC.getOrder(); 3378ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3388ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Give the register class a legal C name if it's anonymous. 3398ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer std::string Name = RC.getName(); 3408ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3418ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer // Emit the register list now. 3428ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << " // " << Name << " Register Class...\n" 3438ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << " static const unsigned " << Name 3448ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << "[] = {\n "; 3458ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer for (unsigned i = 0, e = Order.size(); i != e; ++i) { 3468ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer Record *Reg = Order[i]; 3478ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << getQualifiedName(Reg) << ", "; 3488ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer } 3498ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "\n };\n\n"; 3509df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 3519df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer OS << " // " << Name << " Bit set.\n" 3529df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer << " static const unsigned char " << Name 3539df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer << "Bits[] = {\n "; 354a397a11c7c60e500baa36eea59a46a9aa2e5f35bBenjamin Kramer BitVectorEmitter BVE; 3559df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer for (unsigned i = 0, e = Order.size(); i != e; ++i) { 3569df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer Record *Reg = Order[i]; 3579df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer BVE.add(Target.getRegBank().getReg(Reg)->EnumValue); 3589df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer } 3599df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer BVE.print(OS); 3609df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer OS << "\n };\n\n"; 3619df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer 3628ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer } 3638ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "}\n\n"; 3648ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3651a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "extern const MCRegisterClass " << TargetName 3661a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "MCRegisterClasses[] = {\n"; 3678ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3688ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 36929f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 3706fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen OS << " MCRegisterClass(" << RC.getQualifiedName() + "RegClassID" << ", " 3718ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << '\"' << RC.getName() << "\", " 3728ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.SpillSize/8 << ", " 3738ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.SpillAlignment/8 << ", " 3748ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.CopyCost << ", " 3758ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.Allocatable << ", " 3768ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RC.getName() << ", " << RC.getName() << " + " 3779df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer << RC.getOrder().size() << ", " 3789df8567548e15c6cd91e8a5851784574c4f09528Benjamin Kramer << RC.getName() << "Bits, sizeof(" << RC.getName() << "Bits)" 3798ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << "),\n"; 3808ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer } 3818ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 3828ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer OS << "};\n\n"; 3838ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer 38473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng // MCRegisterInfo initialization routine. 38573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "static inline void Init" << TargetName 3860e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "MCRegisterInfo(MCRegisterInfo *RI, unsigned RA, " 3870e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "unsigned DwarfFlavour = 0, unsigned EHFlavour = 0) {\n"; 38873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << " RI->InitMCRegisterInfo(" << TargetName << "RegDesc, " 3898ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << Regs.size()+1 << ", RA, " << TargetName << "MCRegisterClasses, " 3908ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RegisterClasses.size() << ");\n\n"; 3910e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 3920e6a052331f674dd70e28af41f654a7874405eabEvan Cheng EmitRegMapping(OS, Regs, false); 3930e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 3940e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "}\n\n"; 3950e6a052331f674dd70e28af41f654a7874405eabEvan Cheng 39673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 39773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "} // End llvm namespace \n"; 39873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#endif // GET_REGINFO_MC_DESC\n\n"; 39973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng} 400026dc223aeef2579d63f395007491e37d6cde3a0Jakob Stoklund Olesen 401ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Chengvoid 402ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan ChengRegisterInfoEmitter::runTargetHeader(raw_ostream &OS, CodeGenTarget &Target, 403ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng CodeGenRegBank &RegBank) { 404ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng EmitSourceFileHeader("Register Information Header Fragment", OS); 405ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 406ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "\n#ifdef GET_REGINFO_HEADER\n"; 407ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "#undef GET_REGINFO_HEADER\n"; 408ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 409ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng const std::string &TargetName = Target.getName(); 410ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng std::string ClassName = TargetName + "GenRegisterInfo"; 411ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 412ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "#include \"llvm/Target/TargetRegisterInfo.h\"\n"; 413ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "#include <string>\n\n"; 414ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 415ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "namespace llvm {\n\n"; 416ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 417ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "struct " << ClassName << " : public TargetRegisterInfo {\n" 4180e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << " explicit " << ClassName 4190e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "(unsigned RA, unsigned D = 0, unsigned E = 0);\n" 420ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " virtual bool needsStackRealignment(const MachineFunction &) const\n" 421ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " { return false; }\n" 422ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " unsigned getSubReg(unsigned RegNo, unsigned Index) const;\n" 423ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " unsigned getSubRegIndex(unsigned RegNo, unsigned SubRegNo) const;\n" 424ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " unsigned composeSubRegIndices(unsigned, unsigned) const;\n" 425845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " const TargetRegisterClass *" 426845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen "getSubClassWithSubReg(const TargetRegisterClass*, unsigned) const;\n" 427570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " const TargetRegisterClass *getMatchingSuperRegClass(" 428570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen "const TargetRegisterClass*, const TargetRegisterClass*, " 429570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen "unsigned) const;\n" 430ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << "};\n\n"; 431ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 4325fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen ArrayRef<CodeGenSubRegIndex*> SubRegIndices = RegBank.getSubRegIndices(); 433ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng if (!SubRegIndices.empty()) { 434ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "\n// Subregister indices\n"; 4355fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen std::string Namespace = 4365fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen SubRegIndices[0]->getNamespace(); 437ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng if (!Namespace.empty()) 438ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "namespace " << Namespace << " {\n"; 439ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "enum {\n NoSubRegister,\n"; 440ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng for (unsigned i = 0, e = RegBank.getNumNamedIndices(); i != e; ++i) 441ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << " " << SubRegIndices[i]->getName() << ",\t// " << i+1 << "\n"; 442ed2d17b2d4ae20a83304357d6c84ed10e88bc036Jakob Stoklund Olesen OS << " NUM_TARGET_NAMED_SUBREGS\n};\n"; 443ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng if (!Namespace.empty()) 444ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "}\n"; 445ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng } 446ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 44729f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses(); 448ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 449ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng if (!RegisterClasses.empty()) { 45029f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen OS << "namespace " << RegisterClasses[0]->Namespace 451ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " { // Register classes\n"; 452ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 453ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 45429f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[i]; 455ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng const std::string &Name = RC.getName(); 456ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 457ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng // Output the register class definition. 458ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << " struct " << Name << "Class : public TargetRegisterClass {\n" 459ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << " " << Name << "Class();\n"; 460ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng if (!RC.AltOrderSelect.empty()) 461ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << " ArrayRef<unsigned> " 462ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng "getRawAllocationOrder(const MachineFunction&) const;\n"; 463ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << " };\n"; 464ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 465ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng // Output the extern for the instance. 466ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << " extern " << Name << "Class\t" << Name << "RegClass;\n"; 467ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng // Output the extern for the pointer to the instance (should remove). 468ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << " static TargetRegisterClass * const "<< Name <<"RegisterClass = &" 469ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng << Name << "RegClass;\n"; 470ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng } 471ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "} // end of namespace " << TargetName << "\n\n"; 472ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng } 473ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "} // End llvm namespace \n"; 474ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng OS << "#endif // GET_REGINFO_HEADER\n\n"; 475ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng} 476ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng 47773f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// 47873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// runTargetDesc - Output the target register and register file descriptions. 47973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng// 48073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid 48173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan ChengRegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target, 48273f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng CodeGenRegBank &RegBank){ 48373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng EmitSourceFileHeader("Target Register and Register Classes Information", OS); 48473f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng 48573f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "\n#ifdef GET_REGINFO_TARGET_DESC\n"; 48673f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#undef GET_REGINFO_TARGET_DESC\n"; 48754d156d33324b7715453993f21684915a28e310aChris Lattner 4882c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "namespace llvm {\n\n"; 4892c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner 490f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer // Get access to MCRegisterClass data. 4911a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "extern const MCRegisterClass " << Target.getName() 4921a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer << "MCRegisterClasses[];\n"; 493f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer 494f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen // Start out by emitting each of the register classes. 49529f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> RegisterClasses = RegBank.getRegClasses(); 49654d156d33324b7715453993f21684915a28e310aChris Lattner 497f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen // Collect all registers belonging to any allocatable class. 498f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen std::set<Record*> AllocatableRegs; 499f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen 500f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer // Collect allocatable registers. 50154d156d33324b7715453993f21684915a28e310aChris Lattner for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 50229f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 503ae1920b1efa72c1789d562df4746110d0c2e10bdJakob Stoklund Olesen ArrayRef<Record*> Order = RC.getOrder(); 504c7df109b6c4f7cbf8cc4dbee90291d4e452c7d56Chris Lattner 505f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen if (RC.Allocatable) 506ae1920b1efa72c1789d562df4746110d0c2e10bdJakob Stoklund Olesen AllocatableRegs.insert(Order.begin(), Order.end()); 50742de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner } 5088d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 509f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer OS << "namespace { // Register classes...\n"; 510f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer 5116510b22cec7de4f0acc9965ec24c3668a6a8a87eNate Begeman // Emit the ValueType arrays for each RegisterClass 5126510b22cec7de4f0acc9965ec24c3668a6a8a87eNate Begeman for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 51329f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 5145d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 5156510b22cec7de4f0acc9965ec24c3668a6a8a87eNate Begeman // Give the register class a legal C name if it's anonymous. 516ae1920b1efa72c1789d562df4746110d0c2e10bdJakob Stoklund Olesen std::string Name = RC.getName() + "VTs"; 5175d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 5186510b22cec7de4f0acc9965ec24c3668a6a8a87eNate Begeman // Emit the register list now. 5195d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach OS << " // " << Name 5203b0c0148ed9ec752b240dbea767ad4a9f0a682caEvan Cheng << " Register Class Value Types...\n" 521e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson << " static const EVT " << Name 5223b0c0148ed9ec752b240dbea767ad4a9f0a682caEvan Cheng << "[] = {\n "; 5236510b22cec7de4f0acc9965ec24c3668a6a8a87eNate Begeman for (unsigned i = 0, e = RC.VTs.size(); i != e; ++i) 5246994040a952e5fb27605eb3cf29ed86c4e59cf62Chandler Carruth OS << getEnumName(RC.VTs[i]) << ", "; 525825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson OS << "MVT::Other\n };\n\n"; 5266510b22cec7de4f0acc9965ec24c3668a6a8a87eNate Begeman } 52742de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner OS << "} // end anonymous namespace\n\n"; 5285d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 52942de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner // Now that all of the structs have been emitted, emit the instances. 53042de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner if (!RegisterClasses.empty()) { 53129f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen OS << "namespace " << RegisterClasses[0]->Namespace 53242de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner << " { // Register class instances\n"; 53342de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) 53429f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen OS << " " << RegisterClasses[i]->getName() << "Class\t" 53529f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen << RegisterClasses[i]->getName() << "RegClass;\n"; 5365d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 537f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman std::map<unsigned, std::set<unsigned> > SuperRegClassMap; 538f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen 539f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen OS << "\n static const TargetRegisterClass* const " 540f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen << "NullRegClasses[] = { NULL };\n\n"; 5411367fd09cb021bae61e7dd2ee208f76574c8e789Christopher Lamb 542dc29c447136aabf05f48a7119e48065c3b4cee9bJakob Stoklund Olesen unsigned NumSubRegIndices = RegBank.getSubRegIndices().size(); 54309bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen 54409bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen if (NumSubRegIndices) { 545d9c1fa5205cc31474f9f9a6d715af32098a1a719Jakob Stoklund Olesen // Compute the super-register classes for each RegisterClass 54609bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 54729f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 54809bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen for (DenseMap<Record*,Record*>::const_iterator 54909bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen i = RC.SubRegClasses.begin(), 55009bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen e = RC.SubRegClasses.end(); i != e; ++i) { 55109bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen // Find the register class number of i->second for SuperRegClassMap. 5526fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen const CodeGenRegisterClass *RC2 = RegBank.getRegClass(i->second); 5536fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen assert(RC2 && "Invalid register class in SubRegClasses"); 5546fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen SuperRegClassMap[RC2->EnumValue].insert(rc); 55509bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen } 55609bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen } 557f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman 55809bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen // Emit the super-register classes for each RegisterClass 55909bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 56029f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 56109bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen 56209bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen // Give the register class a legal C name if it's anonymous. 5636fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen std::string Name = RC.getName(); 56409bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen 56509bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen OS << " // " << Name 56609bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen << " Super-register Classes...\n" 56709bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen << " static const TargetRegisterClass* const " 56809bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen << Name << "SuperRegClasses[] = {\n "; 56909bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen 57009bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen bool Empty = true; 57109bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen std::map<unsigned, std::set<unsigned> >::iterator I = 57209bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen SuperRegClassMap.find(rc); 57309bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen if (I != SuperRegClassMap.end()) { 57409bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen for (std::set<unsigned>::iterator II = I->second.begin(), 57509bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen EE = I->second.end(); II != EE; ++II) { 57629f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC2 = *RegisterClasses[*II]; 577f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman if (!Empty) 578f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman OS << ", "; 5796fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen OS << "&" << RC2.getQualifiedName() << "RegClass"; 580f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman Empty = false; 581f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman } 582f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman } 583f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman 58409bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen OS << (!Empty ? ", " : "") << "NULL"; 58509bc0298650c76db1a06e20ca84c1dcb34071600Jakob Stoklund Olesen OS << "\n };\n\n"; 586f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman } 587f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman } 588f8c7394781f7cf27ac52ca087e289436d36844daDan Gohman 5898d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng // Emit the sub-classes array for each RegisterClass 5908d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 59129f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 5928d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 5938d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng // Give the register class a legal C name if it's anonymous. 5946fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen std::string Name = RC.getName(); 5958d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 596c8e2bb68bbc4a71cc10084c8f89565b9f05e12efJakob Stoklund Olesen OS << " static const unsigned " << Name << "SubclassMask[] = { "; 597c8e2bb68bbc4a71cc10084c8f89565b9f05e12efJakob Stoklund Olesen printBitVectorAsHex(OS, RC.getSubClasses(), 32); 598c8e2bb68bbc4a71cc10084c8f89565b9f05e12efJakob Stoklund Olesen OS << "};\n\n"; 5998d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng } 6008d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng 601f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen // Emit NULL terminated super-class lists. 6022ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) { 60329f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rc]; 604f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen ArrayRef<CodeGenRegisterClass*> Supers = RC.getSuperClasses(); 6052ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng 606f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen // Skip classes without supers. We can reuse NullRegClasses. 607f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen if (Supers.empty()) 608f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen continue; 6092ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng 610f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen OS << " static const TargetRegisterClass* const " 611f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen << RC.getName() << "Superclasses[] = {\n"; 612f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen for (unsigned i = 0; i != Supers.size(); ++i) 6136fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen OS << " &" << Supers[i]->getQualifiedName() << "RegClass,\n"; 614f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen OS << " NULL\n };\n\n"; 6152ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng } 6162ca0efd71a5a25c1f3fa8b30dc5459fdaf8cd2a9Evan Cheng 617b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen // Emit methods. 61860200e5d32f63b4e54575f5cbec348f3f9baeb5dChris Lattner for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) { 61929f018cee616e4082e5005bc9adee4dc777e621cJakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[i]; 6205d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach OS << RC.getName() << "Class::" << RC.getName() 621f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << "Class() : TargetRegisterClass(&" 622f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << Target.getName() << "MCRegisterClasses[" 623f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << RC.getName() + "RegClassID" << "], " 6248d58e6a9be0ced7ad260449e882c5d2dcb5f4990Evan Cheng << RC.getName() + "VTs" << ", " 625c8e2bb68bbc4a71cc10084c8f89565b9f05e12efJakob Stoklund Olesen << RC.getName() + "SubclassMask" << ", "; 626f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen if (RC.getSuperClasses().empty()) 627f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen OS << "NullRegClasses, "; 628f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen else 629f9a4bb78dadc12c7c1e604c6f17b63a71305c2caJakob Stoklund Olesen OS << RC.getName() + "Superclasses, "; 630d9c1fa5205cc31474f9f9a6d715af32098a1a719Jakob Stoklund Olesen OS << (NumSubRegIndices ? RC.getName() + "Super" : std::string("Null")) 631f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << "RegClasses" 632a3ca3149f2b59c512c50aab330b5a0d8efddeffaEvan Cheng << ") {}\n"; 633b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen if (!RC.AltOrderSelect.empty()) { 634b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen OS << "\nstatic inline unsigned " << RC.getName() 635b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << "AltOrderSelect(const MachineFunction &MF) {" 636b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << RC.AltOrderSelect << "}\n\nArrayRef<unsigned> " 637b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << RC.getName() << "Class::" 638b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << "getRawAllocationOrder(const MachineFunction &MF) const {\n"; 639b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen for (unsigned oi = 1 , oe = RC.getNumOrders(); oi != oe; ++oi) { 640b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen ArrayRef<Record*> Elems = RC.getOrder(oi); 641f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen if (!Elems.empty()) { 642f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << " static const unsigned AltOrder" << oi << "[] = {"; 643f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen for (unsigned elem = 0; elem != Elems.size(); ++elem) 644f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << (elem ? ", " : " ") << getQualifiedName(Elems[elem]); 645f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << " };\n"; 646f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen } 647b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen } 648f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer OS << " const MCRegisterClass &MCR = " << Target.getName() 649f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen << "MCRegisterClasses[" << RC.getQualifiedName() + "RegClassID];\n" 650f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << " static const ArrayRef<unsigned> Order[] = {\n" 651f496d68493acf8d178afbbe8c3146ea09bd7776bBenjamin Kramer << " makeArrayRef(MCR.begin(), MCR.getNumRegs()"; 652b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen for (unsigned oi = 1, oe = RC.getNumOrders(); oi != oe; ++oi) 653f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen if (RC.getOrder(oi).empty()) 654f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << "),\n ArrayRef<unsigned>("; 655f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen else 656f18a9a2314542ad3b7a601b86969073519e19b0dJakob Stoklund Olesen OS << "),\n makeArrayRef(AltOrder" << oi; 657b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen OS << ")\n };\n const unsigned Select = " << RC.getName() 658b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << "AltOrderSelect(MF);\n assert(Select < " << RC.getNumOrders() 659b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen << ");\n return Order[Select];\n}\n"; 660b4c704877d1600852a55ab7bef2918a7c0af5e0dJakob Stoklund Olesen } 66160200e5d32f63b4e54575f5cbec348f3f9baeb5dChris Lattner } 6625d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 66342de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner OS << "}\n"; 6649fff8919eefa377936918eec763b392e59049353Chris Lattner } 6659fff8919eefa377936918eec763b392e59049353Chris Lattner 66642de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner OS << "\nnamespace {\n"; 6679fff8919eefa377936918eec763b392e59049353Chris Lattner OS << " const TargetRegisterClass* const RegisterClasses[] = {\n"; 66842de581b2f28985ec0c8fcbb26ab4d78c684247fChris Lattner for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) 6696fea31e7300fe012b0b2984d6bc0338d02b054d3Jakob Stoklund Olesen OS << " &" << RegisterClasses[i]->getQualifiedName() 67060200e5d32f63b4e54575f5cbec348f3f9baeb5dChris Lattner << "RegClass,\n"; 6719fff8919eefa377936918eec763b392e59049353Chris Lattner OS << " };\n"; 672c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "}\n"; // End of anonymous namespace... 67354d156d33324b7715453993f21684915a28e310aChris Lattner 674a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng // Emit extra information about registers. 6756844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng const std::string &TargetName = Target.getName(); 676a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng OS << "\n static const TargetRegisterInfoDesc " 6776844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng << TargetName << "RegInfoDesc[] = " 678a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng << "{ // Extra Descriptors\n"; 679a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng OS << " { 0, 0 },\n"; 68026693113201f4c9d441678e50d96f38d3288798eChris Lattner 681a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters(); 68276f0ad7bf5c05d6056b3bf335d0c3fb7e72de5d6Jakob Stoklund Olesen for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 683abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen const CodeGenRegister &Reg = *Regs[i]; 684a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng OS << " { "; 685a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng OS << Reg.CostPerUse << ", " 686f462e3fac7ac67503657d63dc35330d0b19359b3Jakob Stoklund Olesen << int(AllocatableRegs.count(Reg.TheDef)) << " },\n"; 6879fff8919eefa377936918eec763b392e59049353Chris Lattner } 6889fff8919eefa377936918eec763b392e59049353Chris Lattner OS << " };\n"; // End of register descriptors... 6891fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen 690a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng 691123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen // Calculate the mapping of subregister+index pairs to physical registers. 692123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen // This will also create further anonymous indexes. 693dc29c447136aabf05f48a7119e48065c3b4cee9bJakob Stoklund Olesen unsigned NamedIndices = RegBank.getNumNamedIndices(); 694123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen 6951fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen // Emit SubRegIndex names, skipping 0 6965fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen ArrayRef<CodeGenSubRegIndex*> SubRegIndices = RegBank.getSubRegIndices(); 697c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "\n static const char *const " << TargetName 698c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng << "SubRegIndexTable[] = { \""; 6991fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) { 7001fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen OS << SubRegIndices[i]->getName(); 7011fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen if (i+1 != e) 7021fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen OS << "\", \""; 7031fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen } 7041fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen OS << "\" };\n\n"; 705123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen 706123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen // Emit names of the anonymus subreg indexes. 707123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen if (SubRegIndices.size() > NamedIndices) { 708123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen OS << " enum {"; 709123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen for (unsigned i = NamedIndices, e = SubRegIndices.size(); i != e; ++i) { 710123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen OS << "\n " << SubRegIndices[i]->getName() << " = " << i+1; 711123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen if (i+1 != e) 712123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen OS << ','; 713123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen } 714123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen OS << "\n };\n\n"; 715123cab9480812e51f6d4cb118fe685691130f625Jakob Stoklund Olesen } 716c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng OS << "\n"; 7179fff8919eefa377936918eec763b392e59049353Chris Lattner 7187884b750c33b750177b3f22af75c874c97f728d8Chris Lattner std::string ClassName = Target.getName() + "GenRegisterInfo"; 7193da94aec4d429b2ba0f65fa040c33650cade196bMisha Brukman 7207bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman // Emit the subregister + index mapping function based on the information 7217bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman // calculated above. 722ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen OS << "unsigned " << ClassName 7237bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman << "::getSubReg(unsigned RegNo, unsigned Index) const {\n" 7247bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman << " switch (RegNo) {\n" 725dd595c5998214c6ee07ed46f5db551b2abbfbbb3Evan Cheng << " default:\n return 0;\n"; 726ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 727abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen const CodeGenRegister::SubRegMap &SRM = Regs[i]->getSubRegs(); 728ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen if (SRM.empty()) 729ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen continue; 730abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen OS << " case " << getQualifiedName(Regs[i]->TheDef) << ":\n"; 7317bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman OS << " switch (Index) {\n"; 73284a8be3baf8ee5a43ea854e4ea7c3db840e7e285Evan Cheng OS << " default: return 0;\n"; 733b5923db192d2aa938ff3c12aaac87d80ab649625Jakob Stoklund Olesen for (CodeGenRegister::SubRegMap::const_iterator ii = SRM.begin(), 7347c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen ie = SRM.end(); ii != ie; ++ii) 7355fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen OS << " case " << ii->first->getQualifiedName() 736b5923db192d2aa938ff3c12aaac87d80ab649625Jakob Stoklund Olesen << ": return " << getQualifiedName(ii->second->TheDef) << ";\n"; 73784a8be3baf8ee5a43ea854e4ea7c3db840e7e285Evan Cheng OS << " };\n" << " break;\n"; 7387bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman } 7397bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman OS << " };\n"; 740851879c4cf1fc1f97be704a0459fb0ca5f327a44Bill Wendling OS << " return 0;\n"; 7417bf1c272ab27297a7bbab329de3f17ddb26e02a3Nate Begeman OS << "}\n\n"; 742fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng 743ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen OS << "unsigned " << ClassName 744fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng << "::getSubRegIndex(unsigned RegNo, unsigned SubRegNo) const {\n" 745fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng << " switch (RegNo) {\n" 746fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng << " default:\n return 0;\n"; 747ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen for (unsigned i = 0, e = Regs.size(); i != e; ++i) { 748abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen const CodeGenRegister::SubRegMap &SRM = Regs[i]->getSubRegs(); 749ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen if (SRM.empty()) 750ca561ffcf320e9dbfafcac5efcee81471f3259c3Jakob Stoklund Olesen continue; 751abdbc84b4ed4276ed3def50f554e3ba156325717Jakob Stoklund Olesen OS << " case " << getQualifiedName(Regs[i]->TheDef) << ":\n"; 752b5923db192d2aa938ff3c12aaac87d80ab649625Jakob Stoklund Olesen for (CodeGenRegister::SubRegMap::const_iterator ii = SRM.begin(), 7537c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen ie = SRM.end(); ii != ie; ++ii) 754b5923db192d2aa938ff3c12aaac87d80ab649625Jakob Stoklund Olesen OS << " if (SubRegNo == " << getQualifiedName(ii->second->TheDef) 7555fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen << ") return " << ii->first->getQualifiedName() << ";\n"; 756fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng OS << " return 0;\n"; 757fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng } 758fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng OS << " };\n"; 759fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng OS << " return 0;\n"; 760fae3e923452b85e72b2c03dd6eacc063f59d81b1Evan Cheng OS << "}\n\n"; 7617c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen 7627c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen // Emit composeSubRegIndices 7637c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen OS << "unsigned " << ClassName 7647c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen << "::composeSubRegIndices(unsigned IdxA, unsigned IdxB) const {\n" 7657c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen << " switch (IdxA) {\n" 7667c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen << " default:\n return IdxB;\n"; 7677c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen for (unsigned i = 0, e = SubRegIndices.size(); i != e; ++i) { 7687c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen bool Open = false; 7697c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen for (unsigned j = 0; j != e; ++j) { 7705fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen if (CodeGenSubRegIndex *Comp = 77190498b195ba759cf4f2a98da4e46fb9a2b580396Jakob Stoklund Olesen SubRegIndices[i]->compose(SubRegIndices[j])) { 7727c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen if (!Open) { 7735fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen OS << " case " << SubRegIndices[i]->getQualifiedName() 7747c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen << ": switch(IdxB) {\n default: return IdxB;\n"; 7757c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen Open = true; 7767c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 7775fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen OS << " case " << SubRegIndices[j]->getQualifiedName() 7785fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen << ": return " << Comp->getQualifiedName() << ";\n"; 7797c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 7807c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 7817c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen if (Open) 7827c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen OS << " }\n"; 7837c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen } 7847c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen OS << " }\n}\n\n"; 7857c9a6e328407d681414aa66f3e80f92c3d35ad5cJakob Stoklund Olesen 786845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen // Emit getSubClassWithSubReg. 787845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << "const TargetRegisterClass *" << ClassName 788845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << "::getSubClassWithSubReg(const TargetRegisterClass *RC, unsigned Idx)" 789845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen " const {\n"; 790845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen if (SubRegIndices.empty()) { 791845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " assert(Idx == 0 && \"Target has no sub-registers\");\n" 792845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " return RC;\n"; 793845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } else { 794845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen // Use the smallest type that can hold a regclass ID with room for a 795845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen // sentinel. 796845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen if (RegisterClasses.size() < UINT8_MAX) 797845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " static const uint8_t Table["; 798845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen else if (RegisterClasses.size() < UINT16_MAX) 799845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " static const uint16_t Table["; 800845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen else 801845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen throw "Too many register classes."; 802845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << RegisterClasses.size() << "][" << SubRegIndices.size() << "] = {\n"; 803845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen for (unsigned rci = 0, rce = RegisterClasses.size(); rci != rce; ++rci) { 804845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rci]; 805845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " {\t// " << RC.getName() << "\n"; 806845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) { 8075fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen CodeGenSubRegIndex *Idx = SubRegIndices[sri]; 808845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen if (CodeGenRegisterClass *SRC = RC.getSubClassWithSubReg(Idx)) 809845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " " << SRC->EnumValue + 1 << ",\t// " << Idx->getName() 810845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " -> " << SRC->getName() << "\n"; 811845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen else 812845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " 0,\t// " << Idx->getName() << "\n"; 813845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } 814845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " },\n"; 815845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } 816845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << " };\n assert(RC && \"Missing regclass\");\n" 817845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " if (!Idx) return RC;\n --Idx;\n" 818845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " assert(Idx < " << SubRegIndices.size() << " && \"Bad subreg\");\n" 819845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " unsigned TV = Table[RC->getID()][Idx];\n" 820845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen << " return TV ? getRegClass(TV - 1) : 0;\n"; 821845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen } 822845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen OS << "}\n\n"; 823845d2c0c776abce551d16f7b1b7dc1f4d4df1a27Jakob Stoklund Olesen 824570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // Emit getMatchingSuperRegClass. 825570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << "const TargetRegisterClass *" << ClassName 826570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << "::getMatchingSuperRegClass(const TargetRegisterClass *A," 827570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen " const TargetRegisterClass *B, unsigned Idx) const {\n"; 828570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen if (SubRegIndices.empty()) { 829570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << " llvm_unreachable(\"Target has no sub-registers\");\n"; 830570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen } else { 831570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // We need to find the largest sub-class of A such that every register has 832570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // an Idx sub-register in B. Map (B, Idx) to a bit-vector of 833570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // super-register classes that map into B. Then compute the largest common 834570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // sub-class with A by taking advantage of the register class ordering, 835570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // like getCommonSubClass(). 836570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen 837570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // Bitvector table is NumRCs x NumSubIndexes x BVWords, where BVWords is 838570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen // the number of 32-bit words required to represent all register classes. 839570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen const unsigned BVWords = (RegisterClasses.size()+31)/32; 840570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen BitVector BV(RegisterClasses.size()); 841570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen 842570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << " static const unsigned Table[" << RegisterClasses.size() 843570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << "][" << SubRegIndices.size() << "][" << BVWords << "] = {\n"; 844570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen for (unsigned rci = 0, rce = RegisterClasses.size(); rci != rce; ++rci) { 845570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen const CodeGenRegisterClass &RC = *RegisterClasses[rci]; 846570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << " {\t// " << RC.getName() << "\n"; 847570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) { 8485fcc156344e0d38fa5f5eab3d9193b859b27b45eJakob Stoklund Olesen CodeGenSubRegIndex *Idx = SubRegIndices[sri]; 849570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen BV.reset(); 850570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen RC.getSuperRegClasses(Idx, BV); 851570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << " { "; 852570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen printBitVectorAsHex(OS, BV, 32); 853570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << "},\t// " << Idx->getName() << '\n'; 854570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen } 855570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << " },\n"; 856570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen } 857570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << " };\n assert(A && B && \"Missing regclass\");\n" 858570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " --Idx;\n" 859570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " assert(Idx < " << SubRegIndices.size() << " && \"Bad subreg\");\n" 860570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " const unsigned *TV = Table[B->getID()][Idx];\n" 861570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " const unsigned *SC = A->getSubClassMask();\n" 862570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " for (unsigned i = 0; i != " << BVWords << "; ++i)\n" 863570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " if (unsigned Common = TV[i] & SC[i])\n" 864570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " return getRegClass(32*i + CountTrailingZeros_32(Common));\n" 865570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen << " return 0;\n"; 866570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen } 867570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen OS << "}\n\n"; 868570f9a972e02830d1ca223743dd6b4cc4fdf9549Jakob Stoklund Olesen 8699fff8919eefa377936918eec763b392e59049353Chris Lattner // Emit the constructor of the class... 8701a2f9886a2a60dbd41216468a240446bbfed3e76Benjamin Kramer OS << "extern const MCRegisterDesc " << TargetName << "RegDesc[];\n"; 871c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng 8729fff8919eefa377936918eec763b392e59049353Chris Lattner OS << ClassName << "::" << ClassName 8730e6a052331f674dd70e28af41f654a7874405eabEvan Cheng << "(unsigned RA, unsigned DwarfFlavour, unsigned EHFlavour)\n" 8746844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng << " : TargetRegisterInfo(" << TargetName << "RegInfoDesc" 8751fc8e759a767077726f9be35b93767e68bdf101fJakob Stoklund Olesen << ", RegisterClasses, RegisterClasses+" << RegisterClasses.size() <<",\n" 876c60f9b752381baa6c4b80c0739034660f1748c84Evan Cheng << " " << TargetName << "SubRegIndexTable) {\n" 8776844f7bcdec8c2691c8d1067d90e4a02cf658c27Evan Cheng << " InitMCRegisterInfo(" << TargetName << "RegDesc, " 8788ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << Regs.size()+1 << ", RA, " << TargetName << "MCRegisterClasses, " 8798ca9a862038e8c4e9a2ca73b3b75e1be3425155fBenjamin Kramer << RegisterClasses.size() << ");\n\n"; 8805d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 8810e6a052331f674dd70e28af41f654a7874405eabEvan Cheng EmitRegMapping(OS, Regs, true); 8825d4314ef720630e6547fe41efec1608d4c14c78eJim Grosbach 8830e6a052331f674dd70e28af41f654a7874405eabEvan Cheng OS << "}\n\n"; 8844794797f1213c4096a6f5ff2b6841dd5866b22baChris Lattner 885ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 886ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen // Emit CalleeSavedRegs information. 887ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen std::vector<Record*> CSRSets = 888ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen Records.getAllDerivedDefinitions("CalleeSavedRegs"); 889ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen for (unsigned i = 0, e = CSRSets.size(); i != e; ++i) { 890ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen Record *CSRSet = CSRSets[i]; 891ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen const SetTheory::RecVec *Regs = RegBank.getSets().expand(CSRSet); 892ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen assert(Regs && "Cannot expand CalleeSavedRegs instance"); 893ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 894ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen // Emit the *_SaveList list of callee-saved registers. 895ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "static const unsigned " << CSRSet->getName() 896ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen << "_SaveList[] = { "; 897ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen for (unsigned r = 0, re = Regs->size(); r != re; ++r) 898ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << getQualifiedName((*Regs)[r]) << ", "; 899ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "0 };\n"; 900ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 901ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen // Emit the *_RegMask bit mask of call-preserved registers. 902ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "static const uint32_t " << CSRSet->getName() 903ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen << "_RegMask[] = { "; 904ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen printBitVectorAsHex(OS, RegBank.computeCoveredRegisters(*Regs), 32); 905ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "};\n"; 906ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen } 907ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen OS << "\n\n"; 908ec572539dd5660f9ca42027ac04df3a3f8c0cab1Jakob Stoklund Olesen 9092c38413b3f5420f45f2f8220b21862246d446dd0Chris Lattner OS << "} // End llvm namespace \n"; 91073f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng OS << "#endif // GET_REGINFO_TARGET_DESC\n\n"; 9113112326c88b7090f770c4ff8a1546ef84fd2e8bbChris Lattner} 912a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng 91373f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Chengvoid RegisterInfoEmitter::run(raw_ostream &OS) { 914a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng CodeGenTarget Target(Records); 915a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng CodeGenRegBank &RegBank = Target.getRegBank(); 916a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng RegBank.computeDerivedInfo(); 917a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng 91873f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng runEnums(OS, Target, RegBank); 91973f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng runMCDesc(OS, Target, RegBank); 920ebbbfd0e2eeeb5b1a15f0e655a0a2119510713d4Evan Cheng runTargetHeader(OS, Target, RegBank); 92173f50d9bc3bd46cc0abeba9bb0d46977ba1aea42Evan Cheng runTargetDesc(OS, Target, RegBank); 922a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576dEvan Cheng} 923