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Diffstat (limited to 'contrib/llvm/utils/TableGen/EDEmitter.cpp')
| -rw-r--r-- | contrib/llvm/utils/TableGen/EDEmitter.cpp | 1011 |
1 files changed, 0 insertions, 1011 deletions
diff --git a/contrib/llvm/utils/TableGen/EDEmitter.cpp b/contrib/llvm/utils/TableGen/EDEmitter.cpp deleted file mode 100644 index ea25450..0000000 --- a/contrib/llvm/utils/TableGen/EDEmitter.cpp +++ /dev/null @@ -1,1011 +0,0 @@ -//===- EDEmitter.cpp - Generate instruction descriptions for ED -*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This tablegen backend is responsible for emitting a description of each -// instruction in a format that the enhanced disassembler can use to tokenize -// and parse instructions. -// -//===----------------------------------------------------------------------===// - -#include "AsmWriterInst.h" -#include "CodeGenTarget.h" -#include "llvm/MC/EDInstInfo.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/Format.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/TableGen/Error.h" -#include "llvm/TableGen/Record.h" -#include "llvm/TableGen/TableGenBackend.h" -#include <string> -#include <vector> - -using namespace llvm; - -// TODO: There's a suspiciously large amount of "table" data in this -// backend which should probably be in the TableGen file itself. - -/////////////////////////////////////////////////////////// -// Support classes for emitting nested C data structures // -/////////////////////////////////////////////////////////// - -// TODO: These classes are probably generally useful to other backends; -// add them to TableGen's "helper" API's. - -namespace { -class EnumEmitter { -private: - std::string Name; - std::vector<std::string> Entries; -public: - EnumEmitter(const char *N) : Name(N) { - } - int addEntry(const char *e) { - Entries.push_back(std::string(e)); - return Entries.size() - 1; - } - void emit(raw_ostream &o, unsigned int &i) { - o.indent(i) << "enum " << Name.c_str() << " {" << "\n"; - i += 2; - - unsigned int index = 0; - unsigned int numEntries = Entries.size(); - for (index = 0; index < numEntries; ++index) { - o.indent(i) << Entries[index]; - if (index < (numEntries - 1)) - o << ","; - o << "\n"; - } - - i -= 2; - o.indent(i) << "};" << "\n"; - } - - void emitAsFlags(raw_ostream &o, unsigned int &i) { - o.indent(i) << "enum " << Name.c_str() << " {" << "\n"; - i += 2; - - unsigned int index = 0; - unsigned int numEntries = Entries.size(); - unsigned int flag = 1; - for (index = 0; index < numEntries; ++index) { - o.indent(i) << Entries[index] << " = " << format("0x%x", flag); - if (index < (numEntries - 1)) - o << ","; - o << "\n"; - flag <<= 1; - } - - i -= 2; - o.indent(i) << "};" << "\n"; - } -}; -} // End anonymous namespace - -namespace { -class ConstantEmitter { -public: - virtual ~ConstantEmitter() { } - virtual void emit(raw_ostream &o, unsigned int &i) = 0; -}; -} // End anonymous namespace - -namespace { -class LiteralConstantEmitter : public ConstantEmitter { -private: - bool IsNumber; - union { - int Number; - const char* String; - }; -public: - LiteralConstantEmitter(int number = 0) : - IsNumber(true), - Number(number) { - } - void set(const char *string) { - IsNumber = false; - Number = 0; - String = string; - } - bool is(const char *string) { - return !strcmp(String, string); - } - void emit(raw_ostream &o, unsigned int &i) { - if (IsNumber) - o << Number; - else - o << String; - } -}; -} // End anonymous namespace - -namespace { -class CompoundConstantEmitter : public ConstantEmitter { -private: - unsigned int Padding; - std::vector<ConstantEmitter *> Entries; -public: - CompoundConstantEmitter(unsigned int padding = 0) : Padding(padding) { - } - CompoundConstantEmitter &addEntry(ConstantEmitter *e) { - Entries.push_back(e); - - return *this; - } - ~CompoundConstantEmitter() { - while (Entries.size()) { - ConstantEmitter *entry = Entries.back(); - Entries.pop_back(); - delete entry; - } - } - void emit(raw_ostream &o, unsigned int &i) { - o << "{" << "\n"; - i += 2; - - unsigned int index; - unsigned int numEntries = Entries.size(); - - unsigned int numToPrint; - - if (Padding) { - if (numEntries > Padding) { - fprintf(stderr, "%u entries but %u padding\n", numEntries, Padding); - llvm_unreachable("More entries than padding"); - } - numToPrint = Padding; - } else { - numToPrint = numEntries; - } - - for (index = 0; index < numToPrint; ++index) { - o.indent(i); - if (index < numEntries) - Entries[index]->emit(o, i); - else - o << "-1"; - - if (index < (numToPrint - 1)) - o << ","; - o << "\n"; - } - - i -= 2; - o.indent(i) << "}"; - } -}; -} // End anonymous namespace - -namespace { -class FlagsConstantEmitter : public ConstantEmitter { -private: - std::vector<std::string> Flags; -public: - FlagsConstantEmitter() { - } - FlagsConstantEmitter &addEntry(const char *f) { - Flags.push_back(std::string(f)); - return *this; - } - void emit(raw_ostream &o, unsigned int &i) { - unsigned int index; - unsigned int numFlags = Flags.size(); - if (numFlags == 0) - o << "0"; - - for (index = 0; index < numFlags; ++index) { - o << Flags[index].c_str(); - if (index < (numFlags - 1)) - o << " | "; - } - } -}; -} // End anonymous namespace - -/// populateOperandOrder - Accepts a CodeGenInstruction and generates its -/// AsmWriterInst for the desired assembly syntax, giving an ordered list of -/// operands in the order they appear in the printed instruction. Then, for -/// each entry in that list, determines the index of the same operand in the -/// CodeGenInstruction, and emits the resulting mapping into an array, filling -/// in unused slots with -1. -/// -/// @arg operandOrder - The array that will be populated with the operand -/// mapping. Each entry will contain -1 (invalid index -/// into the operands present in the AsmString) or a number -/// representing an index in the operand descriptor array. -/// @arg inst - The instruction to use when looking up the operands -/// @arg syntax - The syntax to use, according to LLVM's enumeration -static void populateOperandOrder(CompoundConstantEmitter *operandOrder, - const CodeGenInstruction &inst, - unsigned syntax) { - unsigned int numArgs = 0; - - AsmWriterInst awInst(inst, syntax, -1, -1); - - std::vector<AsmWriterOperand>::iterator operandIterator; - - for (operandIterator = awInst.Operands.begin(); - operandIterator != awInst.Operands.end(); - ++operandIterator) { - if (operandIterator->OperandType == - AsmWriterOperand::isMachineInstrOperand) { - operandOrder->addEntry( - new LiteralConstantEmitter(operandIterator->CGIOpNo)); - numArgs++; - } - } -} - -///////////////////////////////////////////////////// -// Support functions for handling X86 instructions // -///////////////////////////////////////////////////// - -#define SET(flag) { type->set(flag); return 0; } - -#define REG(str) if (name == str) SET("kOperandTypeRegister"); -#define MEM(str) if (name == str) SET("kOperandTypeX86Memory"); -#define LEA(str) if (name == str) SET("kOperandTypeX86EffectiveAddress"); -#define IMM(str) if (name == str) SET("kOperandTypeImmediate"); -#define PCR(str) if (name == str) SET("kOperandTypeX86PCRelative"); - -/// X86TypeFromOpName - Processes the name of a single X86 operand (which is -/// actually its type) and translates it into an operand type -/// -/// @arg flags - The type object to set -/// @arg name - The name of the operand -static int X86TypeFromOpName(LiteralConstantEmitter *type, - const std::string &name) { - REG("GR8"); - REG("GR8_NOREX"); - REG("GR16"); - REG("GR16_NOAX"); - REG("GR32"); - REG("GR32_NOAX"); - REG("GR32_NOREX"); - REG("GR32_TC"); - REG("FR32"); - REG("RFP32"); - REG("GR64"); - REG("GR64_NOAX"); - REG("GR64_TC"); - REG("FR64"); - REG("VR64"); - REG("RFP64"); - REG("RFP80"); - REG("VR128"); - REG("VR256"); - REG("RST"); - REG("SEGMENT_REG"); - REG("DEBUG_REG"); - REG("CONTROL_REG"); - - IMM("i8imm"); - IMM("i16imm"); - IMM("i16i8imm"); - IMM("i32imm"); - IMM("i32i8imm"); - IMM("u32u8imm"); - IMM("i64imm"); - IMM("i64i8imm"); - IMM("i64i32imm"); - IMM("SSECC"); - IMM("AVXCC"); - - // all R, I, R, I, R - MEM("i8mem"); - MEM("i8mem_NOREX"); - MEM("i16mem"); - MEM("i32mem"); - MEM("i32mem_TC"); - MEM("f32mem"); - MEM("ssmem"); - MEM("opaque32mem"); - MEM("opaque48mem"); - MEM("i64mem"); - MEM("i64mem_TC"); - MEM("f64mem"); - MEM("sdmem"); - MEM("f80mem"); - MEM("opaque80mem"); - MEM("i128mem"); - MEM("i256mem"); - MEM("f128mem"); - MEM("f256mem"); - MEM("opaque512mem"); - // Gather - MEM("vx32mem") - MEM("vy32mem") - MEM("vx64mem") - MEM("vy64mem") - - // all R, I, R, I - LEA("lea32mem"); - LEA("lea64_32mem"); - LEA("lea64mem"); - - // all I - PCR("i16imm_pcrel"); - PCR("i32imm_pcrel"); - PCR("i64i32imm_pcrel"); - PCR("brtarget8"); - PCR("offset8"); - PCR("offset16"); - PCR("offset32"); - PCR("offset64"); - PCR("brtarget"); - PCR("uncondbrtarget"); - PCR("bltarget"); - - // all I, ARM mode only, conditional/unconditional - PCR("br_target"); - PCR("bl_target"); - return 1; -} - -#undef REG -#undef MEM -#undef LEA -#undef IMM -#undef PCR - -#undef SET - -/// X86PopulateOperands - Handles all the operands in an X86 instruction, adding -/// the appropriate flags to their descriptors -/// -/// \param operandTypes A reference the array of operand type objects -/// \param inst The instruction to use as a source of information -static void X86PopulateOperands( - LiteralConstantEmitter *(&operandTypes)[EDIS_MAX_OPERANDS], - const CodeGenInstruction &inst) { - if (!inst.TheDef->isSubClassOf("X86Inst")) - return; - - unsigned int index; - unsigned int numOperands = inst.Operands.size(); - - for (index = 0; index < numOperands; ++index) { - const CGIOperandList::OperandInfo &operandInfo = inst.Operands[index]; - Record &rec = *operandInfo.Rec; - - if (X86TypeFromOpName(operandTypes[index], rec.getName()) && - !rec.isSubClassOf("PointerLikeRegClass")) { - errs() << "Operand type: " << rec.getName().c_str() << "\n"; - errs() << "Operand name: " << operandInfo.Name.c_str() << "\n"; - errs() << "Instruction name: " << inst.TheDef->getName().c_str() << "\n"; - llvm_unreachable("Unhandled type"); - } - } -} - -/// decorate1 - Decorates a named operand with a new flag -/// -/// \param operandFlags The array of operand flag objects, which don't have -/// names -/// \param inst The CodeGenInstruction, which provides a way to -// translate between names and operand indices -/// \param opName The name of the operand -/// \param opFlag The name of the flag to add -static inline void decorate1( - FlagsConstantEmitter *(&operandFlags)[EDIS_MAX_OPERANDS], - const CodeGenInstruction &inst, - const char *opName, - const char *opFlag) { - unsigned opIndex; - - opIndex = inst.Operands.getOperandNamed(std::string(opName)); - - operandFlags[opIndex]->addEntry(opFlag); -} - -#define DECORATE1(opName, opFlag) decorate1(operandFlags, inst, opName, opFlag) - -#define MOV(source, target) { \ - instType.set("kInstructionTypeMove"); \ - DECORATE1(source, "kOperandFlagSource"); \ - DECORATE1(target, "kOperandFlagTarget"); \ -} - -#define BRANCH(target) { \ - instType.set("kInstructionTypeBranch"); \ - DECORATE1(target, "kOperandFlagTarget"); \ -} - -#define PUSH(source) { \ - instType.set("kInstructionTypePush"); \ - DECORATE1(source, "kOperandFlagSource"); \ -} - -#define POP(target) { \ - instType.set("kInstructionTypePop"); \ - DECORATE1(target, "kOperandFlagTarget"); \ -} - -#define CALL(target) { \ - instType.set("kInstructionTypeCall"); \ - DECORATE1(target, "kOperandFlagTarget"); \ -} - -#define RETURN() { \ - instType.set("kInstructionTypeReturn"); \ -} - -/// X86ExtractSemantics - Performs various checks on the name of an X86 -/// instruction to determine what sort of an instruction it is and then adds -/// the appropriate flags to the instruction and its operands -/// -/// \param instType A reference to the type for the instruction as a whole -/// \param operandFlags A reference to the array of operand flag object pointers -/// \param inst A reference to the original instruction -static void X86ExtractSemantics( - LiteralConstantEmitter &instType, - FlagsConstantEmitter *(&operandFlags)[EDIS_MAX_OPERANDS], - const CodeGenInstruction &inst) { - const std::string &name = inst.TheDef->getName(); - - if (name.find("MOV") != name.npos) { - if (name.find("MOV_V") != name.npos) { - // ignore (this is a pseudoinstruction) - } else if (name.find("MASK") != name.npos) { - // ignore (this is a masking move) - } else if (name.find("r0") != name.npos) { - // ignore (this is a pseudoinstruction) - } else if (name.find("PS") != name.npos || - name.find("PD") != name.npos) { - // ignore (this is a shuffling move) - } else if (name.find("MOVS") != name.npos) { - // ignore (this is a string move) - } else if (name.find("_F") != name.npos) { - // TODO handle _F moves to ST(0) - } else if (name.find("a") != name.npos) { - // TODO handle moves to/from %ax - } else if (name.find("CMOV") != name.npos) { - MOV("src2", "dst"); - } else if (name.find("PC") != name.npos) { - MOV("label", "reg") - } else { - MOV("src", "dst"); - } - } - - if (name.find("JMP") != name.npos || - name.find("J") == 0) { - if (name.find("FAR") != name.npos && name.find("i") != name.npos) { - BRANCH("off"); - } else { - BRANCH("dst"); - } - } - - if (name.find("PUSH") != name.npos) { - if (name.find("CS") != name.npos || - name.find("DS") != name.npos || - name.find("ES") != name.npos || - name.find("FS") != name.npos || - name.find("GS") != name.npos || - name.find("SS") != name.npos) { - instType.set("kInstructionTypePush"); - // TODO add support for fixed operands - } else if (name.find("F") != name.npos) { - // ignore (this pushes onto the FP stack) - } else if (name.find("A") != name.npos) { - // ignore (pushes all GP registoers onto the stack) - } else if (name[name.length() - 1] == 'm') { - PUSH("src"); - } else if (name.find("i") != name.npos) { - PUSH("imm"); - } else { - PUSH("reg"); - } - } - - if (name.find("POP") != name.npos) { - if (name.find("POPCNT") != name.npos) { - // ignore (not a real pop) - } else if (name.find("CS") != name.npos || - name.find("DS") != name.npos || - name.find("ES") != name.npos || - name.find("FS") != name.npos || - name.find("GS") != name.npos || - name.find("SS") != name.npos) { - instType.set("kInstructionTypePop"); - // TODO add support for fixed operands - } else if (name.find("F") != name.npos) { - // ignore (this pops from the FP stack) - } else if (name.find("A") != name.npos) { - // ignore (pushes all GP registoers onto the stack) - } else if (name[name.length() - 1] == 'm') { - POP("dst"); - } else { - POP("reg"); - } - } - - if (name.find("CALL") != name.npos) { - if (name.find("ADJ") != name.npos) { - // ignore (not a call) - } else if (name.find("SYSCALL") != name.npos) { - // ignore (doesn't go anywhere we know about) - } else if (name.find("VMCALL") != name.npos) { - // ignore (rather different semantics than a regular call) - } else if (name.find("VMMCALL") != name.npos) { - // ignore (rather different semantics than a regular call) - } else if (name.find("FAR") != name.npos && name.find("i") != name.npos) { - CALL("off"); - } else { - CALL("dst"); - } - } - - if (name.find("RET") != name.npos) { - RETURN(); - } -} - -#undef MOV -#undef BRANCH -#undef PUSH -#undef POP -#undef CALL -#undef RETURN - -///////////////////////////////////////////////////// -// Support functions for handling ARM instructions // -///////////////////////////////////////////////////// - -#define SET(flag) { type->set(flag); return 0; } - -#define REG(str) if (name == str) SET("kOperandTypeRegister"); -#define IMM(str) if (name == str) SET("kOperandTypeImmediate"); - -#define MISC(str, type) if (name == str) SET(type); - -/// ARMFlagFromOpName - Processes the name of a single ARM operand (which is -/// actually its type) and translates it into an operand type -/// -/// \param type The type object to set -/// \param name The name of the operand -static int ARMFlagFromOpName(LiteralConstantEmitter *type, - const std::string &name) { - REG("GPR"); - REG("rGPR"); - REG("GPRnopc"); - REG("GPRsp"); - REG("tcGPR"); - REG("cc_out"); - REG("s_cc_out"); - REG("tGPR"); - REG("DPR"); - REG("DPR_VFP2"); - REG("DPR_8"); - REG("DPair"); - REG("SPR"); - REG("QPR"); - REG("QQPR"); - REG("QQQQPR"); - REG("VecListOneD"); - REG("VecListDPair"); - REG("VecListDPairSpaced"); - REG("VecListThreeD"); - REG("VecListFourD"); - REG("VecListOneDAllLanes"); - REG("VecListDPairAllLanes"); - REG("VecListDPairSpacedAllLanes"); - - IMM("i32imm"); - IMM("fbits16"); - IMM("fbits32"); - IMM("i32imm_hilo16"); - IMM("bf_inv_mask_imm"); - IMM("lsb_pos_imm"); - IMM("width_imm"); - IMM("jtblock_operand"); - IMM("nohash_imm"); - IMM("p_imm"); - IMM("pf_imm"); - IMM("c_imm"); - IMM("coproc_option_imm"); - IMM("imod_op"); - IMM("iflags_op"); - IMM("cpinst_operand"); - IMM("setend_op"); - IMM("cps_opt"); - IMM("vfp_f64imm"); - IMM("vfp_f32imm"); - IMM("memb_opt"); - IMM("msr_mask"); - IMM("neg_zero"); - IMM("imm0_31"); - IMM("imm0_31_m1"); - IMM("imm1_16"); - IMM("imm1_32"); - IMM("nModImm"); - IMM("nImmSplatI8"); - IMM("nImmSplatI16"); - IMM("nImmSplatI32"); - IMM("nImmSplatI64"); - IMM("nImmVMOVI32"); - IMM("nImmVMOVF32"); - IMM("imm8"); - IMM("imm16"); - IMM("imm32"); - IMM("imm1_7"); - IMM("imm1_15"); - IMM("imm1_31"); - IMM("imm0_1"); - IMM("imm0_3"); - IMM("imm0_7"); - IMM("imm0_15"); - IMM("imm0_255"); - IMM("imm0_4095"); - IMM("imm0_65535"); - IMM("imm0_65535_expr"); - IMM("imm24b"); - IMM("pkh_lsl_amt"); - IMM("pkh_asr_amt"); - IMM("jt2block_operand"); - IMM("t_imm0_1020s4"); - IMM("t_imm0_508s4"); - IMM("pclabel"); - IMM("adrlabel"); - IMM("t_adrlabel"); - IMM("t2adrlabel"); - IMM("shift_imm"); - IMM("t2_shift_imm"); - IMM("neon_vcvt_imm32"); - IMM("shr_imm8"); - IMM("shr_imm16"); - IMM("shr_imm32"); - IMM("shr_imm64"); - IMM("t2ldrlabel"); - IMM("postidx_imm8"); - IMM("postidx_imm8s4"); - IMM("imm_sr"); - IMM("imm1_31"); - IMM("VectorIndex8"); - IMM("VectorIndex16"); - IMM("VectorIndex32"); - - MISC("brtarget", "kOperandTypeARMBranchTarget"); // ? - MISC("uncondbrtarget", "kOperandTypeARMBranchTarget"); // ? - MISC("t_brtarget", "kOperandTypeARMBranchTarget"); // ? - MISC("t_bcctarget", "kOperandTypeARMBranchTarget"); // ? - MISC("t_cbtarget", "kOperandTypeARMBranchTarget"); // ? - MISC("bltarget", "kOperandTypeARMBranchTarget"); // ? - - MISC("br_target", "kOperandTypeARMBranchTarget"); // ? - MISC("bl_target", "kOperandTypeARMBranchTarget"); // ? - MISC("blx_target", "kOperandTypeARMBranchTarget"); // ? - - MISC("t_bltarget", "kOperandTypeARMBranchTarget"); // ? - MISC("t_blxtarget", "kOperandTypeARMBranchTarget"); // ? - MISC("so_reg_imm", "kOperandTypeARMSoRegReg"); // R, R, I - MISC("so_reg_reg", "kOperandTypeARMSoRegImm"); // R, R, I - MISC("shift_so_reg_reg", "kOperandTypeARMSoRegReg"); // R, R, I - MISC("shift_so_reg_imm", "kOperandTypeARMSoRegImm"); // R, R, I - MISC("t2_so_reg", "kOperandTypeThumb2SoReg"); // R, I - MISC("so_imm", "kOperandTypeARMSoImm"); // I - MISC("rot_imm", "kOperandTypeARMRotImm"); // I - MISC("t2_so_imm", "kOperandTypeThumb2SoImm"); // I - MISC("so_imm2part", "kOperandTypeARMSoImm2Part"); // I - MISC("pred", "kOperandTypeARMPredicate"); // I, R - MISC("it_pred", "kOperandTypeARMPredicate"); // I - MISC("addrmode_imm12", "kOperandTypeAddrModeImm12"); // R, I - MISC("ldst_so_reg", "kOperandTypeLdStSOReg"); // R, R, I - MISC("postidx_reg", "kOperandTypeARMAddrMode3Offset"); // R, I - MISC("addrmode2", "kOperandTypeARMAddrMode2"); // R, R, I - MISC("am2offset_reg", "kOperandTypeARMAddrMode2Offset"); // R, I - MISC("am2offset_imm", "kOperandTypeARMAddrMode2Offset"); // R, I - MISC("addrmode3", "kOperandTypeARMAddrMode3"); // R, R, I - MISC("am3offset", "kOperandTypeARMAddrMode3Offset"); // R, I - MISC("ldstm_mode", "kOperandTypeARMLdStmMode"); // I - MISC("addrmode5", "kOperandTypeARMAddrMode5"); // R, I - MISC("addrmode6", "kOperandTypeARMAddrMode6"); // R, R, I, I - MISC("am6offset", "kOperandTypeARMAddrMode6Offset"); // R, I, I - MISC("addrmode6dup", "kOperandTypeARMAddrMode6"); // R, R, I, I - MISC("addrmode6oneL32", "kOperandTypeARMAddrMode6"); // R, R, I, I - MISC("addrmodepc", "kOperandTypeARMAddrModePC"); // R, I - MISC("addr_offset_none", "kOperandTypeARMAddrMode7"); // R - MISC("reglist", "kOperandTypeARMRegisterList"); // I, R, ... - MISC("dpr_reglist", "kOperandTypeARMDPRRegisterList"); // I, R, ... - MISC("spr_reglist", "kOperandTypeARMSPRRegisterList"); // I, R, ... - MISC("it_mask", "kOperandTypeThumbITMask"); // I - MISC("t2addrmode_reg", "kOperandTypeThumb2AddrModeReg"); // R - MISC("t2addrmode_posimm8", "kOperandTypeThumb2AddrModeImm8"); // R, I - MISC("t2addrmode_negimm8", "kOperandTypeThumb2AddrModeImm8"); // R, I - MISC("t2addrmode_imm8", "kOperandTypeThumb2AddrModeImm8"); // R, I - MISC("t2am_imm8_offset", "kOperandTypeThumb2AddrModeImm8Offset");//I - MISC("t2addrmode_imm12", "kOperandTypeThumb2AddrModeImm12"); // R, I - MISC("t2addrmode_so_reg", "kOperandTypeThumb2AddrModeSoReg"); // R, R, I - MISC("t2addrmode_imm8s4", "kOperandTypeThumb2AddrModeImm8s4"); // R, I - MISC("t2addrmode_imm0_1020s4", "kOperandTypeThumb2AddrModeImm8s4"); // R, I - MISC("t2am_imm8s4_offset", "kOperandTypeThumb2AddrModeImm8s4Offset"); - // R, I - MISC("tb_addrmode", "kOperandTypeARMTBAddrMode"); // I - MISC("t_addrmode_rrs1", "kOperandTypeThumbAddrModeRegS1"); // R, R - MISC("t_addrmode_rrs2", "kOperandTypeThumbAddrModeRegS2"); // R, R - MISC("t_addrmode_rrs4", "kOperandTypeThumbAddrModeRegS4"); // R, R - MISC("t_addrmode_is1", "kOperandTypeThumbAddrModeImmS1"); // R, I - MISC("t_addrmode_is2", "kOperandTypeThumbAddrModeImmS2"); // R, I - MISC("t_addrmode_is4", "kOperandTypeThumbAddrModeImmS4"); // R, I - MISC("t_addrmode_rr", "kOperandTypeThumbAddrModeRR"); // R, R - MISC("t_addrmode_sp", "kOperandTypeThumbAddrModeSP"); // R, I - MISC("t_addrmode_pc", "kOperandTypeThumbAddrModePC"); // R, I - MISC("addrmode_tbb", "kOperandTypeThumbAddrModeRR"); // R, R - MISC("addrmode_tbh", "kOperandTypeThumbAddrModeRR"); // R, R - - return 1; -} - -#undef REG -#undef MEM -#undef MISC - -#undef SET - -/// ARMPopulateOperands - Handles all the operands in an ARM instruction, adding -/// the appropriate flags to their descriptors -/// -/// \param operandTypes A reference the array of operand type objects -/// \param inst The instruction to use as a source of information -static void ARMPopulateOperands( - LiteralConstantEmitter *(&operandTypes)[EDIS_MAX_OPERANDS], - const CodeGenInstruction &inst) { - if (!inst.TheDef->isSubClassOf("InstARM") && - !inst.TheDef->isSubClassOf("InstThumb")) - return; - - unsigned int index; - unsigned int numOperands = inst.Operands.size(); - - if (numOperands > EDIS_MAX_OPERANDS) { - errs() << "numOperands == " << numOperands << " > " << - EDIS_MAX_OPERANDS << '\n'; - llvm_unreachable("Too many operands"); - } - - for (index = 0; index < numOperands; ++index) { - const CGIOperandList::OperandInfo &operandInfo = inst.Operands[index]; - Record &rec = *operandInfo.Rec; - - if (ARMFlagFromOpName(operandTypes[index], rec.getName())) { - errs() << "Operand type: " << rec.getName() << '\n'; - errs() << "Operand name: " << operandInfo.Name << '\n'; - errs() << "Instruction name: " << inst.TheDef->getName() << '\n'; - PrintFatalError("Unhandled type in EDEmitter"); - } - } -} - -#define BRANCH(target) { \ - instType.set("kInstructionTypeBranch"); \ - DECORATE1(target, "kOperandFlagTarget"); \ -} - -/// ARMExtractSemantics - Performs various checks on the name of an ARM -/// instruction to determine what sort of an instruction it is and then adds -/// the appropriate flags to the instruction and its operands -/// -/// \param instType A reference to the type for the instruction as a whole -/// \param operandTypes A reference to the array of operand type object pointers -/// \param operandFlags A reference to the array of operand flag object pointers -/// \param inst A reference to the original instruction -static void ARMExtractSemantics( - LiteralConstantEmitter &instType, - LiteralConstantEmitter *(&operandTypes)[EDIS_MAX_OPERANDS], - FlagsConstantEmitter *(&operandFlags)[EDIS_MAX_OPERANDS], - const CodeGenInstruction &inst) { - const std::string &name = inst.TheDef->getName(); - - if (name == "tBcc" || - name == "tB" || - name == "t2Bcc" || - name == "Bcc" || - name == "tCBZ" || - name == "tCBNZ") { - BRANCH("target"); - } - - if (name == "tBLr9" || - name == "BLr9_pred" || - name == "tBLXi_r9" || - name == "tBLXr_r9" || - name == "BLXr9" || - name == "t2BXJ" || - name == "BXJ") { - BRANCH("func"); - - unsigned opIndex; - opIndex = inst.Operands.getOperandNamed("func"); - if (operandTypes[opIndex]->is("kOperandTypeImmediate")) - operandTypes[opIndex]->set("kOperandTypeARMBranchTarget"); - } -} - -#undef BRANCH - -/// populateInstInfo - Fills an array of InstInfos with information about each -/// instruction in a target -/// -/// \param infoArray The array of InstInfo objects to populate -/// \param target The CodeGenTarget to use as a source of instructions -static void populateInstInfo(CompoundConstantEmitter &infoArray, - CodeGenTarget &target) { - const std::vector<const CodeGenInstruction*> &numberedInstructions = - target.getInstructionsByEnumValue(); - - unsigned int index; - unsigned int numInstructions = numberedInstructions.size(); - - for (index = 0; index < numInstructions; ++index) { - const CodeGenInstruction& inst = *numberedInstructions[index]; - - CompoundConstantEmitter *infoStruct = new CompoundConstantEmitter; - infoArray.addEntry(infoStruct); - - LiteralConstantEmitter *instType = new LiteralConstantEmitter; - infoStruct->addEntry(instType); - - LiteralConstantEmitter *numOperandsEmitter = - new LiteralConstantEmitter(inst.Operands.size()); - infoStruct->addEntry(numOperandsEmitter); - - CompoundConstantEmitter *operandTypeArray = new CompoundConstantEmitter; - infoStruct->addEntry(operandTypeArray); - - LiteralConstantEmitter *operandTypes[EDIS_MAX_OPERANDS]; - - CompoundConstantEmitter *operandFlagArray = new CompoundConstantEmitter; - infoStruct->addEntry(operandFlagArray); - - FlagsConstantEmitter *operandFlags[EDIS_MAX_OPERANDS]; - - for (unsigned operandIndex = 0; - operandIndex < EDIS_MAX_OPERANDS; - ++operandIndex) { - operandTypes[operandIndex] = new LiteralConstantEmitter; - operandTypeArray->addEntry(operandTypes[operandIndex]); - - operandFlags[operandIndex] = new FlagsConstantEmitter; - operandFlagArray->addEntry(operandFlags[operandIndex]); - } - - unsigned numSyntaxes = 0; - - // We don't need to do anything for pseudo-instructions, as we'll never - // see them here. We'll only see real instructions. - // We still need to emit null initializers for everything. - if (!inst.isPseudo) { - if (target.getName() == "X86") { - X86PopulateOperands(operandTypes, inst); - X86ExtractSemantics(*instType, operandFlags, inst); - numSyntaxes = 2; - } - else if (target.getName() == "ARM") { - ARMPopulateOperands(operandTypes, inst); - ARMExtractSemantics(*instType, operandTypes, operandFlags, inst); - numSyntaxes = 1; - } - } - - CompoundConstantEmitter *operandOrderArray = new CompoundConstantEmitter; - - infoStruct->addEntry(operandOrderArray); - - for (unsigned syntaxIndex = 0; - syntaxIndex < EDIS_MAX_SYNTAXES; - ++syntaxIndex) { - CompoundConstantEmitter *operandOrder = - new CompoundConstantEmitter(EDIS_MAX_OPERANDS); - - operandOrderArray->addEntry(operandOrder); - - if (syntaxIndex < numSyntaxes) { - populateOperandOrder(operandOrder, inst, syntaxIndex); - } - } - - infoStruct = NULL; - } -} - -static void emitCommonEnums(raw_ostream &o, unsigned int &i) { - EnumEmitter operandTypes("OperandTypes"); - operandTypes.addEntry("kOperandTypeNone"); - operandTypes.addEntry("kOperandTypeImmediate"); - operandTypes.addEntry("kOperandTypeRegister"); - operandTypes.addEntry("kOperandTypeX86Memory"); - operandTypes.addEntry("kOperandTypeX86EffectiveAddress"); - operandTypes.addEntry("kOperandTypeX86PCRelative"); - operandTypes.addEntry("kOperandTypeARMBranchTarget"); - operandTypes.addEntry("kOperandTypeARMSoRegReg"); - operandTypes.addEntry("kOperandTypeARMSoRegImm"); - operandTypes.addEntry("kOperandTypeARMSoImm"); - operandTypes.addEntry("kOperandTypeARMRotImm"); - operandTypes.addEntry("kOperandTypeARMSoImm2Part"); - operandTypes.addEntry("kOperandTypeARMPredicate"); - operandTypes.addEntry("kOperandTypeAddrModeImm12"); - operandTypes.addEntry("kOperandTypeLdStSOReg"); - operandTypes.addEntry("kOperandTypeARMAddrMode2"); - operandTypes.addEntry("kOperandTypeARMAddrMode2Offset"); - operandTypes.addEntry("kOperandTypeARMAddrMode3"); - operandTypes.addEntry("kOperandTypeARMAddrMode3Offset"); - operandTypes.addEntry("kOperandTypeARMLdStmMode"); - operandTypes.addEntry("kOperandTypeARMAddrMode5"); - operandTypes.addEntry("kOperandTypeARMAddrMode6"); - operandTypes.addEntry("kOperandTypeARMAddrMode6Offset"); - operandTypes.addEntry("kOperandTypeARMAddrMode7"); - operandTypes.addEntry("kOperandTypeARMAddrModePC"); - operandTypes.addEntry("kOperandTypeARMRegisterList"); - operandTypes.addEntry("kOperandTypeARMDPRRegisterList"); - operandTypes.addEntry("kOperandTypeARMSPRRegisterList"); - operandTypes.addEntry("kOperandTypeARMTBAddrMode"); - operandTypes.addEntry("kOperandTypeThumbITMask"); - operandTypes.addEntry("kOperandTypeThumbAddrModeImmS1"); - operandTypes.addEntry("kOperandTypeThumbAddrModeImmS2"); - operandTypes.addEntry("kOperandTypeThumbAddrModeImmS4"); - operandTypes.addEntry("kOperandTypeThumbAddrModeRegS1"); - operandTypes.addEntry("kOperandTypeThumbAddrModeRegS2"); - operandTypes.addEntry("kOperandTypeThumbAddrModeRegS4"); - operandTypes.addEntry("kOperandTypeThumbAddrModeRR"); - operandTypes.addEntry("kOperandTypeThumbAddrModeSP"); - operandTypes.addEntry("kOperandTypeThumbAddrModePC"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeReg"); - operandTypes.addEntry("kOperandTypeThumb2SoReg"); - operandTypes.addEntry("kOperandTypeThumb2SoImm"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeImm8"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeImm8Offset"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeImm12"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeSoReg"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeImm8s4"); - operandTypes.addEntry("kOperandTypeThumb2AddrModeImm8s4Offset"); - operandTypes.emit(o, i); - - o << "\n"; - - EnumEmitter operandFlags("OperandFlags"); - operandFlags.addEntry("kOperandFlagSource"); - operandFlags.addEntry("kOperandFlagTarget"); - operandFlags.emitAsFlags(o, i); - - o << "\n"; - - EnumEmitter instructionTypes("InstructionTypes"); - instructionTypes.addEntry("kInstructionTypeNone"); - instructionTypes.addEntry("kInstructionTypeMove"); - instructionTypes.addEntry("kInstructionTypeBranch"); - instructionTypes.addEntry("kInstructionTypePush"); - instructionTypes.addEntry("kInstructionTypePop"); - instructionTypes.addEntry("kInstructionTypeCall"); - instructionTypes.addEntry("kInstructionTypeReturn"); - instructionTypes.emit(o, i); - - o << "\n"; -} - -namespace llvm { - -void EmitEnhancedDisassemblerInfo(RecordKeeper &RK, raw_ostream &OS) { - emitSourceFileHeader("Enhanced Disassembler Info", OS); - unsigned int i = 0; - - CompoundConstantEmitter infoArray; - CodeGenTarget target(RK); - - populateInstInfo(infoArray, target); - - emitCommonEnums(OS, i); - - OS << "static const llvm::EDInstInfo instInfo" - << target.getName() << "[] = "; - infoArray.emit(OS, i); - OS << ";" << "\n"; -} - -} // End llvm namespace |
