-//===- CodeGenTarget.cpp - CodeGen Target Class Wrapper ---------*- C++ -*-===//
+//===- CodeGenTarget.cpp - CodeGen Target Class Wrapper -------------------===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This class wrap target description classes used by the various code
+// This class wraps target description classes used by the various code
// generation TableGen backends. This makes it easier to access the data and
// provides a single place that needs to check it for validity. All of these
-// classes throw exceptions on error conditions.
+// classes abort on error conditions.
//
//===----------------------------------------------------------------------===//
#include "CodeGenTarget.h"
#include "CodeGenIntrinsics.h"
-#include "Record.h"
+#include "CodeGenSchedule.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
-#include <set>
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
#include <algorithm>
using namespace llvm;
+static cl::opt<unsigned>
+AsmParserNum("asmparsernum", cl::init(0),
+ cl::desc("Make -gen-asm-parser emit assembly parser #N"));
+
static cl::opt<unsigned>
AsmWriterNum("asmwriternum", cl::init(0),
cl::desc("Make -gen-asm-writer emit assembly writer #N"));
-/// getValueType - Return the MCV::ValueType that the specified TableGen record
-/// corresponds to.
-MVT::ValueType llvm::getValueType(Record *Rec, const CodeGenTarget *CGT) {
- return (MVT::ValueType)Rec->getValueAsInt("Value");
+/// getValueType - Return the MVT::SimpleValueType that the specified TableGen
+/// record corresponds to.
+MVT::SimpleValueType llvm::getValueType(Record *Rec) {
+ return (MVT::SimpleValueType)Rec->getValueAsInt("Value");
}
-std::string llvm::getName(MVT::ValueType T) {
+std::string llvm::getName(MVT::SimpleValueType T) {
switch (T) {
- case MVT::Other: return "UNKNOWN";
- case MVT::i1: return "MVT::i1";
- case MVT::i8: return "MVT::i8";
- case MVT::i16: return "MVT::i16";
- case MVT::i32: return "MVT::i32";
- case MVT::i64: return "MVT::i64";
- case MVT::i128: return "MVT::i128";
- case MVT::f32: return "MVT::f32";
- case MVT::f64: return "MVT::f64";
- case MVT::f80: return "MVT::f80";
- case MVT::f128: return "MVT::f128";
- case MVT::Flag: return "MVT::Flag";
- case MVT::isVoid:return "MVT::void";
- case MVT::v8i8: return "MVT::v8i8";
- case MVT::v4i16: return "MVT::v4i16";
- case MVT::v2i32: return "MVT::v2i32";
- case MVT::v16i8: return "MVT::v16i8";
- case MVT::v8i16: return "MVT::v8i16";
- case MVT::v4i32: return "MVT::v4i32";
- case MVT::v2i64: return "MVT::v2i64";
- case MVT::v2f32: return "MVT::v2f32";
- case MVT::v4f32: return "MVT::v4f32";
- case MVT::v2f64: return "MVT::v2f64";
- case MVT::iPTR: return "TLI.getPointerTy()";
- default: assert(0 && "ILLEGAL VALUE TYPE!"); return "";
+ case MVT::Other: return "UNKNOWN";
+ case MVT::iPTR: return "TLI.getPointerTy()";
+ case MVT::iPTRAny: return "TLI.getPointerTy()";
+ default: return getEnumName(T);
}
}
-std::string llvm::getEnumName(MVT::ValueType T) {
+std::string llvm::getEnumName(MVT::SimpleValueType T) {
switch (T) {
- case MVT::Other: return "MVT::Other";
- case MVT::i1: return "MVT::i1";
- case MVT::i8: return "MVT::i8";
- case MVT::i16: return "MVT::i16";
- case MVT::i32: return "MVT::i32";
- case MVT::i64: return "MVT::i64";
- case MVT::i128: return "MVT::i128";
- case MVT::f32: return "MVT::f32";
- case MVT::f64: return "MVT::f64";
- case MVT::f80: return "MVT::f80";
- case MVT::f128: return "MVT::f128";
- case MVT::Flag: return "MVT::Flag";
- case MVT::isVoid:return "MVT::isVoid";
- case MVT::v8i8: return "MVT::v8i8";
- case MVT::v4i16: return "MVT::v4i16";
- case MVT::v2i32: return "MVT::v2i32";
- case MVT::v16i8: return "MVT::v16i8";
- case MVT::v8i16: return "MVT::v8i16";
- case MVT::v4i32: return "MVT::v4i32";
- case MVT::v2i64: return "MVT::v2i64";
- case MVT::v2f32: return "MVT::v2f32";
- case MVT::v4f32: return "MVT::v4f32";
- case MVT::v2f64: return "MVT::v2f64";
- case MVT::iPTR: return "TLI.getPointerTy()";
- default: assert(0 && "ILLEGAL VALUE TYPE!"); return "";
+ case MVT::Other: return "MVT::Other";
+ case MVT::i1: return "MVT::i1";
+ case MVT::i8: return "MVT::i8";
+ case MVT::i16: return "MVT::i16";
+ case MVT::i32: return "MVT::i32";
+ case MVT::i64: return "MVT::i64";
+ case MVT::i128: return "MVT::i128";
+ case MVT::Any: return "MVT::Any";
+ case MVT::iAny: return "MVT::iAny";
+ case MVT::fAny: return "MVT::fAny";
+ case MVT::vAny: return "MVT::vAny";
+ case MVT::f16: return "MVT::f16";
+ case MVT::f32: return "MVT::f32";
+ case MVT::f64: return "MVT::f64";
+ case MVT::f80: return "MVT::f80";
+ case MVT::f128: return "MVT::f128";
+ case MVT::ppcf128: return "MVT::ppcf128";
+ case MVT::x86mmx: return "MVT::x86mmx";
+ case MVT::Glue: return "MVT::Glue";
+ case MVT::isVoid: return "MVT::isVoid";
+ case MVT::v2i1: return "MVT::v2i1";
+ case MVT::v4i1: return "MVT::v4i1";
+ case MVT::v8i1: return "MVT::v8i1";
+ case MVT::v16i1: return "MVT::v16i1";
+ case MVT::v32i1: return "MVT::v32i1";
+ case MVT::v64i1: return "MVT::v64i1";
+ case MVT::v1i8: return "MVT::v1i8";
+ case MVT::v2i8: return "MVT::v2i8";
+ case MVT::v4i8: return "MVT::v4i8";
+ case MVT::v8i8: return "MVT::v8i8";
+ case MVT::v16i8: return "MVT::v16i8";
+ case MVT::v32i8: return "MVT::v32i8";
+ case MVT::v64i8: return "MVT::v64i8";
+ case MVT::v1i16: return "MVT::v1i16";
+ case MVT::v2i16: return "MVT::v2i16";
+ case MVT::v4i16: return "MVT::v4i16";
+ case MVT::v8i16: return "MVT::v8i16";
+ case MVT::v16i16: return "MVT::v16i16";
+ case MVT::v32i16: return "MVT::v32i16";
+ case MVT::v1i32: return "MVT::v1i32";
+ case MVT::v2i32: return "MVT::v2i32";
+ case MVT::v4i32: return "MVT::v4i32";
+ case MVT::v8i32: return "MVT::v8i32";
+ case MVT::v16i32: return "MVT::v16i32";
+ case MVT::v1i64: return "MVT::v1i64";
+ case MVT::v2i64: return "MVT::v2i64";
+ case MVT::v4i64: return "MVT::v4i64";
+ case MVT::v8i64: return "MVT::v8i64";
+ case MVT::v16i64: return "MVT::v16i64";
+ case MVT::v1i128: return "MVT::v1i128";
+ case MVT::v2f16: return "MVT::v2f16";
+ case MVT::v4f16: return "MVT::v4f16";
+ case MVT::v8f16: return "MVT::v8f16";
+ case MVT::v1f32: return "MVT::v1f32";
+ case MVT::v2f32: return "MVT::v2f32";
+ case MVT::v4f32: return "MVT::v4f32";
+ case MVT::v8f32: return "MVT::v8f32";
+ case MVT::v16f32: return "MVT::v16f32";
+ case MVT::v1f64: return "MVT::v1f64";
+ case MVT::v2f64: return "MVT::v2f64";
+ case MVT::v4f64: return "MVT::v4f64";
+ case MVT::v8f64: return "MVT::v8f64";
+ case MVT::token: return "MVT::token";
+ case MVT::Metadata: return "MVT::Metadata";
+ case MVT::iPTR: return "MVT::iPTR";
+ case MVT::iPTRAny: return "MVT::iPTRAny";
+ case MVT::Untyped: return "MVT::Untyped";
+ default: llvm_unreachable("ILLEGAL VALUE TYPE!");
}
}
-
-std::ostream &llvm::operator<<(std::ostream &OS, MVT::ValueType T) {
- return OS << getName(T);
+/// getQualifiedName - Return the name of the specified record, with a
+/// namespace qualifier if the record contains one.
+///
+std::string llvm::getQualifiedName(const Record *R) {
+ std::string Namespace;
+ if (R->getValue("Namespace"))
+ Namespace = R->getValueAsString("Namespace");
+ if (Namespace.empty()) return R->getName();
+ return Namespace + "::" + R->getName();
}
/// getTarget - Return the current instance of the Target class.
///
-CodeGenTarget::CodeGenTarget() {
+CodeGenTarget::CodeGenTarget(RecordKeeper &records)
+ : Records(records) {
std::vector<Record*> Targets = Records.getAllDerivedDefinitions("Target");
if (Targets.size() == 0)
- throw std::string("ERROR: No 'Target' subclasses defined!");
+ PrintFatalError("ERROR: No 'Target' subclasses defined!");
if (Targets.size() != 1)
- throw std::string("ERROR: Multiple subclasses of Target defined!");
+ PrintFatalError("ERROR: Multiple subclasses of Target defined!");
TargetRec = Targets[0];
}
+CodeGenTarget::~CodeGenTarget() {
+}
const std::string &CodeGenTarget::getName() const {
return TargetRec->getName();
}
+std::string CodeGenTarget::getInstNamespace() const {
+ for (const CodeGenInstruction *Inst : instructions()) {
+ // Make sure not to pick up "TargetOpcode" by accidentally getting
+ // the namespace off the PHI instruction or something.
+ if (Inst->Namespace != "TargetOpcode")
+ return Inst->Namespace;
+ }
+
+ return "";
+}
+
Record *CodeGenTarget::getInstructionSet() const {
return TargetRec->getValueAsDef("InstructionSet");
}
+
+/// getAsmParser - Return the AssemblyParser definition for this target.
+///
+Record *CodeGenTarget::getAsmParser() const {
+ std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyParsers");
+ if (AsmParserNum >= LI.size())
+ PrintFatalError("Target does not have an AsmParser #" +
+ Twine(AsmParserNum) + "!");
+ return LI[AsmParserNum];
+}
+
+/// getAsmParserVariant - Return the AssmblyParserVariant definition for
+/// this target.
+///
+Record *CodeGenTarget::getAsmParserVariant(unsigned i) const {
+ std::vector<Record*> LI =
+ TargetRec->getValueAsListOfDefs("AssemblyParserVariants");
+ if (i >= LI.size())
+ PrintFatalError("Target does not have an AsmParserVariant #" + Twine(i) +
+ "!");
+ return LI[i];
+}
+
+/// getAsmParserVariantCount - Return the AssmblyParserVariant definition
+/// available for this target.
+///
+unsigned CodeGenTarget::getAsmParserVariantCount() const {
+ std::vector<Record*> LI =
+ TargetRec->getValueAsListOfDefs("AssemblyParserVariants");
+ return LI.size();
+}
+
/// getAsmWriter - Return the AssemblyWriter definition for this target.
///
Record *CodeGenTarget::getAsmWriter() const {
std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyWriters");
if (AsmWriterNum >= LI.size())
- throw "Target does not have an AsmWriter #" + utostr(AsmWriterNum) + "!";
+ PrintFatalError("Target does not have an AsmWriter #" +
+ Twine(AsmWriterNum) + "!");
return LI[AsmWriterNum];
}
-void CodeGenTarget::ReadRegisters() const {
- std::vector<Record*> Regs = Records.getAllDerivedDefinitions("Register");
- if (Regs.empty())
- throw std::string("No 'Register' subclasses defined!");
-
- Registers.reserve(Regs.size());
- Registers.assign(Regs.begin(), Regs.end());
+CodeGenRegBank &CodeGenTarget::getRegBank() const {
+ if (!RegBank)
+ RegBank = llvm::make_unique<CodeGenRegBank>(Records);
+ return *RegBank;
}
-CodeGenRegister::CodeGenRegister(Record *R) : TheDef(R) {
- DeclaredSpillSize = R->getValueAsInt("SpillSize");
- DeclaredSpillAlignment = R->getValueAsInt("SpillAlignment");
+void CodeGenTarget::ReadRegAltNameIndices() const {
+ RegAltNameIndices = Records.getAllDerivedDefinitions("RegAltNameIndex");
+ std::sort(RegAltNameIndices.begin(), RegAltNameIndices.end(), LessRecord());
}
-const std::string &CodeGenRegister::getName() const {
- return TheDef->getName();
+/// getRegisterByName - If there is a register with the specific AsmName,
+/// return it.
+const CodeGenRegister *CodeGenTarget::getRegisterByName(StringRef Name) const {
+ const StringMap<CodeGenRegister*> &Regs = getRegBank().getRegistersByName();
+ StringMap<CodeGenRegister*>::const_iterator I = Regs.find(Name);
+ if (I == Regs.end())
+ return nullptr;
+ return I->second;
}
-void CodeGenTarget::ReadRegisterClasses() const {
- std::vector<Record*> RegClasses =
- Records.getAllDerivedDefinitions("RegisterClass");
- if (RegClasses.empty())
- throw std::string("No 'RegisterClass' subclasses defined!");
-
- RegisterClasses.reserve(RegClasses.size());
- RegisterClasses.assign(RegClasses.begin(), RegClasses.end());
-}
-
-std::vector<unsigned char> CodeGenTarget::getRegisterVTs(Record *R) const {
- std::vector<unsigned char> Result;
- const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
- for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
- const CodeGenRegisterClass &RC = RegisterClasses[i];
- for (unsigned ei = 0, ee = RC.Elements.size(); ei != ee; ++ei) {
- if (R == RC.Elements[ei]) {
- const std::vector<MVT::ValueType> &InVTs = RC.getValueTypes();
- for (unsigned i = 0, e = InVTs.size(); i != e; ++i)
- Result.push_back(InVTs[i]);
- }
+std::vector<MVT::SimpleValueType> CodeGenTarget::
+getRegisterVTs(Record *R) const {
+ const CodeGenRegister *Reg = getRegBank().getReg(R);
+ std::vector<MVT::SimpleValueType> Result;
+ for (const auto &RC : getRegBank().getRegClasses()) {
+ if (RC.contains(Reg)) {
+ ArrayRef<MVT::SimpleValueType> InVTs = RC.getValueTypes();
+ Result.insert(Result.end(), InVTs.begin(), InVTs.end());
}
}
- return Result;
-}
-
-CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) {
- // Rename anonymous register classes.
- if (R->getName().size() > 9 && R->getName()[9] == '.') {
- static unsigned AnonCounter = 0;
- R->setName("AnonRegClass_"+utostr(AnonCounter++));
- }
-
- std::vector<Record*> TypeList = R->getValueAsListOfDefs("RegTypes");
- for (unsigned i = 0, e = TypeList.size(); i != e; ++i) {
- Record *Type = TypeList[i];
- if (!Type->isSubClassOf("ValueType"))
- throw "RegTypes list member '" + Type->getName() +
- "' does not derive from the ValueType class!";
- VTs.push_back(getValueType(Type));
- }
- assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!");
-
- std::vector<Record*> RegList = R->getValueAsListOfDefs("MemberList");
- for (unsigned i = 0, e = RegList.size(); i != e; ++i) {
- Record *Reg = RegList[i];
- if (!Reg->isSubClassOf("Register"))
- throw "Register Class member '" + Reg->getName() +
- "' does not derive from the Register class!";
- Elements.push_back(Reg);
- }
-
- // Allow targets to override the size in bits of the RegisterClass.
- unsigned Size = R->getValueAsInt("Size");
-
- Namespace = R->getValueAsString("Namespace");
- SpillSize = Size ? Size : MVT::getSizeInBits(VTs[0]);
- SpillAlignment = R->getValueAsInt("Alignment");
- MethodBodies = R->getValueAsCode("MethodBodies");
- MethodProtos = R->getValueAsCode("MethodProtos");
+ // Remove duplicates.
+ array_pod_sort(Result.begin(), Result.end());
+ Result.erase(std::unique(Result.begin(), Result.end()), Result.end());
+ return Result;
}
-const std::string &CodeGenRegisterClass::getName() const {
- return TheDef->getName();
-}
void CodeGenTarget::ReadLegalValueTypes() const {
- const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
- for (unsigned i = 0, e = RCs.size(); i != e; ++i)
- for (unsigned ri = 0, re = RCs[i].VTs.size(); ri != re; ++ri)
- LegalValueTypes.push_back(RCs[i].VTs[ri]);
-
+ for (const auto &RC : getRegBank().getRegClasses())
+ LegalValueTypes.insert(LegalValueTypes.end(), RC.VTs.begin(), RC.VTs.end());
+
// Remove duplicates.
- std::sort(LegalValueTypes.begin(), LegalValueTypes.end());
+ array_pod_sort(LegalValueTypes.begin(), LegalValueTypes.end());
LegalValueTypes.erase(std::unique(LegalValueTypes.begin(),
LegalValueTypes.end()),
LegalValueTypes.end());
}
+CodeGenSchedModels &CodeGenTarget::getSchedModels() const {
+ if (!SchedModels)
+ SchedModels = llvm::make_unique<CodeGenSchedModels>(Records, *this);
+ return *SchedModels;
+}
void CodeGenTarget::ReadInstructions() const {
std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
if (Insts.size() <= 2)
- throw std::string("No 'Instruction' subclasses defined!");
+ PrintFatalError("No 'Instruction' subclasses defined!");
// Parse the instructions defined in the .td file.
- std::string InstFormatName =
- getAsmWriter()->getValueAsString("InstFormatName");
+ for (unsigned i = 0, e = Insts.size(); i != e; ++i)
+ Instructions[Insts[i]] = llvm::make_unique<CodeGenInstruction>(Insts[i]);
+}
- for (unsigned i = 0, e = Insts.size(); i != e; ++i) {
- std::string AsmStr = Insts[i]->getValueAsString(InstFormatName);
- Instructions.insert(std::make_pair(Insts[i]->getName(),
- CodeGenInstruction(Insts[i], AsmStr)));
- }
+static const CodeGenInstruction *
+GetInstByName(const char *Name,
+ const DenseMap<const Record*,
+ std::unique_ptr<CodeGenInstruction>> &Insts,
+ RecordKeeper &Records) {
+ const Record *Rec = Records.getDef(Name);
+
+ const auto I = Insts.find(Rec);
+ if (!Rec || I == Insts.end())
+ PrintFatalError(Twine("Could not find '") + Name + "' instruction!");
+ return I->second.get();
}
-/// getInstructionsByEnumValue - Return all of the instructions defined by the
-/// target, ordered by their enum value.
-void CodeGenTarget::
-getInstructionsByEnumValue(std::vector<const CodeGenInstruction*>
- &NumberedInstructions) {
- std::map<std::string, CodeGenInstruction>::const_iterator I;
- I = getInstructions().find("PHI");
- if (I == Instructions.end()) throw "Could not find 'PHI' instruction!";
- const CodeGenInstruction *PHI = &I->second;
-
- I = getInstructions().find("INLINEASM");
- if (I == Instructions.end()) throw "Could not find 'INLINEASM' instruction!";
- const CodeGenInstruction *INLINEASM = &I->second;
-
- // Print out the rest of the instructions now.
- NumberedInstructions.push_back(PHI);
- NumberedInstructions.push_back(INLINEASM);
- for (inst_iterator II = inst_begin(), E = inst_end(); II != E; ++II)
- if (&II->second != PHI &&&II->second != INLINEASM)
- NumberedInstructions.push_back(&II->second);
+/// \brief Return all of the instructions defined by the target, ordered by
+/// their enum value.
+void CodeGenTarget::ComputeInstrsByEnum() const {
+ // The ordering here must match the ordering in TargetOpcodes.h.
+ static const char *const FixedInstrs[] = {
+ "PHI", "INLINEASM", "CFI_INSTRUCTION", "EH_LABEL",
+ "GC_LABEL", "KILL", "EXTRACT_SUBREG", "INSERT_SUBREG",
+ "IMPLICIT_DEF", "SUBREG_TO_REG", "COPY_TO_REGCLASS", "DBG_VALUE",
+ "REG_SEQUENCE", "COPY", "BUNDLE", "LIFETIME_START",
+ "LIFETIME_END", "STACKMAP", "PATCHPOINT", "LOAD_STACK_GUARD",
+ "STATEPOINT", "LOCAL_ESCAPE", "FAULTING_LOAD_OP",
+ nullptr};
+ const auto &Insts = getInstructions();
+ for (const char *const *p = FixedInstrs; *p; ++p) {
+ const CodeGenInstruction *Instr = GetInstByName(*p, Insts, Records);
+ assert(Instr && "Missing target independent instruction");
+ assert(Instr->Namespace == "TargetOpcode" && "Bad namespace");
+ InstrsByEnum.push_back(Instr);
+ }
+ unsigned EndOfPredefines = InstrsByEnum.size();
+
+ for (const auto &I : Insts) {
+ const CodeGenInstruction *CGI = I.second.get();
+ if (CGI->Namespace != "TargetOpcode")
+ InstrsByEnum.push_back(CGI);
+ }
+
+ assert(InstrsByEnum.size() == Insts.size() && "Missing predefined instr");
+
+ // All of the instructions are now in random order based on the map iteration.
+ // Sort them by name.
+ std::sort(InstrsByEnum.begin() + EndOfPredefines, InstrsByEnum.end(),
+ [](const CodeGenInstruction *Rec1, const CodeGenInstruction *Rec2) {
+ return Rec1->TheDef->getName() < Rec2->TheDef->getName();
+ });
}
return getInstructionSet()->getValueAsBit("isLittleEndianEncoding");
}
-
-
-static void ParseConstraint(const std::string &CStr, CodeGenInstruction *I) {
- // FIXME: Only supports TIED_TO for now.
- std::string::size_type pos = CStr.find_first_of('=');
- assert(pos != std::string::npos && "Unrecognized constraint");
- std::string Name = CStr.substr(0, pos);
-
- // TIED_TO: $src1 = $dst
- std::string::size_type wpos = Name.find_first_of(" \t");
- if (wpos == std::string::npos)
- throw "Illegal format for tied-to constraint: '" + CStr + "'";
- std::string DestOpName = Name.substr(0, wpos);
- std::pair<unsigned,unsigned> DestOp = I->ParseOperandName(DestOpName, false);
-
- Name = CStr.substr(pos+1);
- wpos = Name.find_first_not_of(" \t");
- if (wpos == std::string::npos)
- throw "Illegal format for tied-to constraint: '" + CStr + "'";
-
- std::pair<unsigned,unsigned> SrcOp =
- I->ParseOperandName(Name.substr(wpos), false);
- if (SrcOp > DestOp)
- throw "Illegal tied-to operand constraint '" + CStr + "'";
-
-
- unsigned FlatOpNo = I->getFlattenedOperandNumber(SrcOp);
- // Build the string for the operand.
- std::string OpConstraint =
- "((" + utostr(FlatOpNo) + " << 16) | (1 << TargetInstrInfo::TIED_TO))";
-
-
- if (!I->OperandList[DestOp.first].Constraints[DestOp.second].empty())
- throw "Operand '" + DestOpName + "' cannot have multiple constraints!";
- I->OperandList[DestOp.first].Constraints[DestOp.second] = OpConstraint;
-}
-
-static void ParseConstraints(const std::string &CStr, CodeGenInstruction *I) {
- // Make sure the constraints list for each operand is large enough to hold
- // constraint info, even if none is present.
- for (unsigned i = 0, e = I->OperandList.size(); i != e; ++i)
- I->OperandList[i].Constraints.resize(I->OperandList[i].MINumOperands);
-
- if (CStr.empty()) return;
-
- const std::string delims(",");
- std::string::size_type bidx, eidx;
-
- bidx = CStr.find_first_not_of(delims);
- while (bidx != std::string::npos) {
- eidx = CStr.find_first_of(delims, bidx);
- if (eidx == std::string::npos)
- eidx = CStr.length();
-
- ParseConstraint(CStr.substr(bidx, eidx), I);
- bidx = CStr.find_first_not_of(delims, eidx);
- }
-}
-
-CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
- : TheDef(R), AsmString(AsmStr) {
- Name = R->getValueAsString("Name");
- Namespace = R->getValueAsString("Namespace");
-
- isReturn = R->getValueAsBit("isReturn");
- isBranch = R->getValueAsBit("isBranch");
- isBarrier = R->getValueAsBit("isBarrier");
- isCall = R->getValueAsBit("isCall");
- isLoad = R->getValueAsBit("isLoad");
- isStore = R->getValueAsBit("isStore");
- isTwoAddress = R->getValueAsBit("isTwoAddress");
- isPredicated = false; // set below.
- isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
- isCommutable = R->getValueAsBit("isCommutable");
- isTerminator = R->getValueAsBit("isTerminator");
- hasDelaySlot = R->getValueAsBit("hasDelaySlot");
- usesCustomDAGSchedInserter = R->getValueAsBit("usesCustomDAGSchedInserter");
- hasCtrlDep = R->getValueAsBit("hasCtrlDep");
- noResults = R->getValueAsBit("noResults");
- hasVariableNumberOfOperands = false;
-
- DagInit *DI;
- try {
- DI = R->getValueAsDag("OperandList");
- } catch (...) {
- // Error getting operand list, just ignore it (sparcv9).
- AsmString.clear();
- OperandList.clear();
+/// reverseBitsForLittleEndianEncoding - For little-endian instruction bit
+/// encodings, reverse the bit order of all instructions.
+void CodeGenTarget::reverseBitsForLittleEndianEncoding() {
+ if (!isLittleEndianEncoding())
return;
- }
- unsigned MIOperandNo = 0;
- std::set<std::string> OperandNames;
- for (unsigned i = 0, e = DI->getNumArgs(); i != e; ++i) {
- DefInit *Arg = dynamic_cast<DefInit*>(DI->getArg(i));
- if (!Arg)
- throw "Illegal operand for the '" + R->getName() + "' instruction!";
-
- Record *Rec = Arg->getDef();
- std::string PrintMethod = "printOperand";
- unsigned NumOps = 1;
- DagInit *MIOpInfo = 0;
- if (Rec->isSubClassOf("Operand")) {
- PrintMethod = Rec->getValueAsString("PrintMethod");
- MIOpInfo = Rec->getValueAsDag("MIOperandInfo");
-
- // Verify that MIOpInfo has an 'ops' root value.
- if (!dynamic_cast<DefInit*>(MIOpInfo->getOperator()) ||
- dynamic_cast<DefInit*>(MIOpInfo->getOperator())
- ->getDef()->getName() != "ops")
- throw "Bad value for MIOperandInfo in operand '" + Rec->getName() +
- "'\n";
-
- // If we have MIOpInfo, then we have #operands equal to number of entries
- // in MIOperandInfo.
- if (unsigned NumArgs = MIOpInfo->getNumArgs())
- NumOps = NumArgs;
-
- isPredicated |= Rec->isSubClassOf("PredicateOperand");
- } else if (Rec->getName() == "variable_ops") {
- hasVariableNumberOfOperands = true;
+ std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
+ for (Record *R : Insts) {
+ if (R->getValueAsString("Namespace") == "TargetOpcode" ||
+ R->getValueAsBit("isPseudo"))
continue;
- } else if (!Rec->isSubClassOf("RegisterClass") &&
- Rec->getName() != "ptr_rc")
- throw "Unknown operand class '" + Rec->getName() +
- "' in instruction '" + R->getName() + "' instruction!";
-
- // Check that the operand has a name and that it's unique.
- if (DI->getArgName(i).empty())
- throw "In instruction '" + R->getName() + "', operand #" + utostr(i) +
- " has no name!";
- if (!OperandNames.insert(DI->getArgName(i)).second)
- throw "In instruction '" + R->getName() + "', operand #" + utostr(i) +
- " has the same name as a previous operand!";
-
- OperandList.push_back(OperandInfo(Rec, DI->getArgName(i), PrintMethod,
- MIOperandNo, NumOps, MIOpInfo));
- MIOperandNo += NumOps;
- }
-
- ParseConstraints(R->getValueAsString("Constraints"), this);
-
- // For backward compatibility: isTwoAddress means operand 1 is tied to
- // operand 0.
- if (isTwoAddress) {
- if (!OperandList[1].Constraints[0].empty())
- throw R->getName() + ": cannot use isTwoAddress property: instruction "
- "already has constraint set!";
- OperandList[1].Constraints[0] =
- "((0 << 16) | (1 << TargetInstrInfo::TIED_TO))";
- }
-
- // Any operands with unset constraints get 0 as their constraint.
- for (unsigned op = 0, e = OperandList.size(); op != e; ++op)
- for (unsigned j = 0, e = OperandList[op].MINumOperands; j != e; ++j)
- if (OperandList[op].Constraints[j].empty())
- OperandList[op].Constraints[j] = "0";
-}
-
+ BitsInit *BI = R->getValueAsBitsInit("Inst");
+
+ unsigned numBits = BI->getNumBits();
+
+ SmallVector<Init *, 16> NewBits(numBits);
+
+ for (unsigned bit = 0, end = numBits / 2; bit != end; ++bit) {
+ unsigned bitSwapIdx = numBits - bit - 1;
+ Init *OrigBit = BI->getBit(bit);
+ Init *BitSwap = BI->getBit(bitSwapIdx);
+ NewBits[bit] = BitSwap;
+ NewBits[bitSwapIdx] = OrigBit;
+ }
+ if (numBits % 2) {
+ unsigned middle = (numBits + 1) / 2;
+ NewBits[middle] = BI->getBit(middle);
+ }
-/// getOperandNamed - Return the index of the operand with the specified
-/// non-empty name. If the instruction does not have an operand with the
-/// specified name, throw an exception.
-///
-unsigned CodeGenInstruction::getOperandNamed(const std::string &Name) const {
- assert(!Name.empty() && "Cannot search for operand with no name!");
- for (unsigned i = 0, e = OperandList.size(); i != e; ++i)
- if (OperandList[i].Name == Name) return i;
- throw "Instruction '" + TheDef->getName() +
- "' does not have an operand named '$" + Name + "'!";
-}
+ BitsInit *NewBI = BitsInit::get(NewBits);
-std::pair<unsigned,unsigned>
-CodeGenInstruction::ParseOperandName(const std::string &Op,
- bool AllowWholeOp) {
- if (Op.empty() || Op[0] != '$')
- throw TheDef->getName() + ": Illegal operand name: '" + Op + "'";
-
- std::string OpName = Op.substr(1);
- std::string SubOpName;
-
- // Check to see if this is $foo.bar.
- std::string::size_type DotIdx = OpName.find_first_of(".");
- if (DotIdx != std::string::npos) {
- SubOpName = OpName.substr(DotIdx+1);
- if (SubOpName.empty())
- throw TheDef->getName() + ": illegal empty suboperand name in '" +Op +"'";
- OpName = OpName.substr(0, DotIdx);
- }
-
- unsigned OpIdx = getOperandNamed(OpName);
-
- if (SubOpName.empty()) { // If no suboperand name was specified:
- // If one was needed, throw.
- if (OperandList[OpIdx].MINumOperands > 1 && !AllowWholeOp &&
- SubOpName.empty())
- throw TheDef->getName() + ": Illegal to refer to"
- " whole operand part of complex operand '" + Op + "'";
-
- // Otherwise, return the operand.
- return std::make_pair(OpIdx, 0U);
+ // Update the bits in reversed order so that emitInstrOpBits will get the
+ // correct endianness.
+ R->getValue("Inst")->setValue(NewBI);
}
-
- // Find the suboperand number involved.
- DagInit *MIOpInfo = OperandList[OpIdx].MIOperandInfo;
- if (MIOpInfo == 0)
- throw TheDef->getName() + ": unknown suboperand name in '" + Op + "'";
-
- // Find the operand with the right name.
- for (unsigned i = 0, e = MIOpInfo->getNumArgs(); i != e; ++i)
- if (MIOpInfo->getArgName(i) == SubOpName)
- return std::make_pair(OpIdx, i);
-
- // Otherwise, didn't find it!
- throw TheDef->getName() + ": unknown suboperand name in '" + Op + "'";
}
-
-
+/// guessInstructionProperties - Return true if it's OK to guess instruction
+/// properties instead of raising an error.
+///
+/// This is configurable as a temporary migration aid. It will eventually be
+/// permanently false.
+bool CodeGenTarget::guessInstructionProperties() const {
+ return getInstructionSet()->getValueAsBit("guessInstructionProperties");
+}
//===----------------------------------------------------------------------===//
// ComplexPattern implementation
for (unsigned i = 0, e = PropList.size(); i != e; ++i)
if (PropList[i]->getName() == "SDNPHasChain") {
Properties |= 1 << SDNPHasChain;
- } else if (PropList[i]->getName() == "SDNPOptInFlag") {
- Properties |= 1 << SDNPOptInFlag;
+ } else if (PropList[i]->getName() == "SDNPOptInGlue") {
+ Properties |= 1 << SDNPOptInGlue;
+ } else if (PropList[i]->getName() == "SDNPMayStore") {
+ Properties |= 1 << SDNPMayStore;
+ } else if (PropList[i]->getName() == "SDNPMayLoad") {
+ Properties |= 1 << SDNPMayLoad;
+ } else if (PropList[i]->getName() == "SDNPSideEffect") {
+ Properties |= 1 << SDNPSideEffect;
+ } else if (PropList[i]->getName() == "SDNPMemOperand") {
+ Properties |= 1 << SDNPMemOperand;
+ } else if (PropList[i]->getName() == "SDNPVariadic") {
+ Properties |= 1 << SDNPVariadic;
+ } else if (PropList[i]->getName() == "SDNPWantRoot") {
+ Properties |= 1 << SDNPWantRoot;
+ } else if (PropList[i]->getName() == "SDNPWantParent") {
+ Properties |= 1 << SDNPWantParent;
} else {
- std::cerr << "Unsupported SD Node property '" << PropList[i]->getName()
- << "' on ComplexPattern '" << R->getName() << "'!\n";
- exit(1);
+ PrintFatalError("Unsupported SD Node property '" +
+ PropList[i]->getName() + "' on ComplexPattern '" +
+ R->getName() + "'!");
}
}
// CodeGenIntrinsic Implementation
//===----------------------------------------------------------------------===//
-std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC) {
+std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC,
+ bool TargetOnly) {
std::vector<Record*> I = RC.getAllDerivedDefinitions("Intrinsic");
-
+
std::vector<CodeGenIntrinsic> Result;
- // If we are in the context of a target .td file, get the target info so that
- // we can decode the current intptr_t.
- CodeGenTarget *CGT = 0;
- if (Records.getClass("Target") &&
- Records.getAllDerivedDefinitions("Target").size() == 1)
- CGT = new CodeGenTarget();
-
- for (unsigned i = 0, e = I.size(); i != e; ++i)
- Result.push_back(CodeGenIntrinsic(I[i], CGT));
- delete CGT;
+ for (unsigned i = 0, e = I.size(); i != e; ++i) {
+ bool isTarget = I[i]->getValueAsBit("isTarget");
+ if (isTarget == TargetOnly)
+ Result.push_back(CodeGenIntrinsic(I[i]));
+ }
return Result;
}
-CodeGenIntrinsic::CodeGenIntrinsic(Record *R, CodeGenTarget *CGT) {
+CodeGenIntrinsic::CodeGenIntrinsic(Record *R) {
TheDef = R;
std::string DefName = R->getName();
- ModRef = WriteMem;
-
- if (DefName.size() <= 4 ||
- std::string(DefName.begin(), DefName.begin()+4) != "int_")
- throw "Intrinsic '" + DefName + "' does not start with 'int_'!";
+ ModRef = ReadWriteMem;
+ isOverloaded = false;
+ isCommutative = false;
+ canThrow = false;
+ isNoReturn = false;
+ isNoDuplicate = false;
+ isConvergent = false;
+
+ if (DefName.size() <= 4 ||
+ std::string(DefName.begin(), DefName.begin() + 4) != "int_")
+ PrintFatalError("Intrinsic '" + DefName + "' does not start with 'int_'!");
+
EnumName = std::string(DefName.begin()+4, DefName.end());
+
if (R->getValue("GCCBuiltinName")) // Ignore a missing GCCBuiltinName field.
GCCBuiltinName = R->getValueAsString("GCCBuiltinName");
- TargetPrefix = R->getValueAsString("TargetPrefix");
+ if (R->getValue("MSBuiltinName")) // Ignore a missing MSBuiltinName field.
+ MSBuiltinName = R->getValueAsString("MSBuiltinName");
+
+ TargetPrefix = R->getValueAsString("TargetPrefix");
Name = R->getValueAsString("LLVMName");
+
if (Name == "") {
// If an explicit name isn't specified, derive one from the DefName.
Name = "llvm.";
+
for (unsigned i = 0, e = EnumName.size(); i != e; ++i)
- if (EnumName[i] == '_')
- Name += '.';
- else
- Name += EnumName[i];
+ Name += (EnumName[i] == '_') ? '.' : EnumName[i];
} else {
// Verify it starts with "llvm.".
- if (Name.size() <= 5 ||
- std::string(Name.begin(), Name.begin()+5) != "llvm.")
- throw "Intrinsic '" + DefName + "'s name does not start with 'llvm.'!";
+ if (Name.size() <= 5 ||
+ std::string(Name.begin(), Name.begin() + 5) != "llvm.")
+ PrintFatalError("Intrinsic '" + DefName + "'s name does not start with 'llvm.'!");
}
-
+
// If TargetPrefix is specified, make sure that Name starts with
// "llvm.<targetprefix>.".
if (!TargetPrefix.empty()) {
if (Name.size() < 6+TargetPrefix.size() ||
- std::string(Name.begin()+5, Name.begin()+6+TargetPrefix.size())
- != (TargetPrefix+"."))
- throw "Intrinsic '" + DefName + "' does not start with 'llvm." +
- TargetPrefix + ".'!";
+ std::string(Name.begin() + 5, Name.begin() + 6 + TargetPrefix.size())
+ != (TargetPrefix + "."))
+ PrintFatalError("Intrinsic '" + DefName + "' does not start with 'llvm." +
+ TargetPrefix + ".'!");
}
-
- // Parse the list of argument types.
- ListInit *TypeList = R->getValueAsListInit("Types");
- for (unsigned i = 0, e = TypeList->getSize(); i != e; ++i) {
- DefInit *DI = dynamic_cast<DefInit*>(TypeList->getElement(i));
- assert(DI && "Invalid list type!");
- Record *TyEl = DI->getDef();
+
+ // Parse the list of return types.
+ std::vector<MVT::SimpleValueType> OverloadedVTs;
+ ListInit *TypeList = R->getValueAsListInit("RetTypes");
+ for (unsigned i = 0, e = TypeList->size(); i != e; ++i) {
+ Record *TyEl = TypeList->getElementAsRecord(i);
assert(TyEl->isSubClassOf("LLVMType") && "Expected a type!");
- ArgTypes.push_back(TyEl->getValueAsString("TypeVal"));
-
- if (CGT)
- ArgVTs.push_back(getValueType(TyEl->getValueAsDef("VT"), CGT));
- ArgTypeDefs.push_back(TyEl);
+ MVT::SimpleValueType VT;
+ if (TyEl->isSubClassOf("LLVMMatchType")) {
+ unsigned MatchTy = TyEl->getValueAsInt("Number");
+ assert(MatchTy < OverloadedVTs.size() &&
+ "Invalid matching number!");
+ VT = OverloadedVTs[MatchTy];
+ // It only makes sense to use the extended and truncated vector element
+ // variants with iAny types; otherwise, if the intrinsic is not
+ // overloaded, all the types can be specified directly.
+ assert(((!TyEl->isSubClassOf("LLVMExtendedType") &&
+ !TyEl->isSubClassOf("LLVMTruncatedType")) ||
+ VT == MVT::iAny || VT == MVT::vAny) &&
+ "Expected iAny or vAny type");
+ } else {
+ VT = getValueType(TyEl->getValueAsDef("VT"));
+ }
+ if (MVT(VT).isOverloaded()) {
+ OverloadedVTs.push_back(VT);
+ isOverloaded = true;
+ }
+
+ // Reject invalid types.
+ if (VT == MVT::isVoid)
+ PrintFatalError("Intrinsic '" + DefName + " has void in result type list!");
+
+ IS.RetVTs.push_back(VT);
+ IS.RetTypeDefs.push_back(TyEl);
+ }
+
+ // Parse the list of parameter types.
+ TypeList = R->getValueAsListInit("ParamTypes");
+ for (unsigned i = 0, e = TypeList->size(); i != e; ++i) {
+ Record *TyEl = TypeList->getElementAsRecord(i);
+ assert(TyEl->isSubClassOf("LLVMType") && "Expected a type!");
+ MVT::SimpleValueType VT;
+ if (TyEl->isSubClassOf("LLVMMatchType")) {
+ unsigned MatchTy = TyEl->getValueAsInt("Number");
+ assert(MatchTy < OverloadedVTs.size() &&
+ "Invalid matching number!");
+ VT = OverloadedVTs[MatchTy];
+ // It only makes sense to use the extended and truncated vector element
+ // variants with iAny types; otherwise, if the intrinsic is not
+ // overloaded, all the types can be specified directly.
+ assert(((!TyEl->isSubClassOf("LLVMExtendedType") &&
+ !TyEl->isSubClassOf("LLVMTruncatedType") &&
+ !TyEl->isSubClassOf("LLVMVectorSameWidth") &&
+ !TyEl->isSubClassOf("LLVMPointerToElt")) ||
+ VT == MVT::iAny || VT == MVT::vAny) &&
+ "Expected iAny or vAny type");
+ } else
+ VT = getValueType(TyEl->getValueAsDef("VT"));
+
+ if (MVT(VT).isOverloaded()) {
+ OverloadedVTs.push_back(VT);
+ isOverloaded = true;
+ }
+
+ // Reject invalid types.
+ if (VT == MVT::isVoid && i != e-1 /*void at end means varargs*/)
+ PrintFatalError("Intrinsic '" + DefName + " has void in result type list!");
+
+ IS.ParamVTs.push_back(VT);
+ IS.ParamTypeDefs.push_back(TyEl);
}
- if (ArgTypes.size() == 0)
- throw "Intrinsic '"+DefName+"' needs at least a type for the ret value!";
-
+
// Parse the intrinsic properties.
ListInit *PropList = R->getValueAsListInit("Properties");
- for (unsigned i = 0, e = PropList->getSize(); i != e; ++i) {
- DefInit *DI = dynamic_cast<DefInit*>(PropList->getElement(i));
- assert(DI && "Invalid list type!");
- Record *Property = DI->getDef();
+ for (unsigned i = 0, e = PropList->size(); i != e; ++i) {
+ Record *Property = PropList->getElementAsRecord(i);
assert(Property->isSubClassOf("IntrinsicProperty") &&
"Expected a property!");
-
+
if (Property->getName() == "IntrNoMem")
ModRef = NoMem;
else if (Property->getName() == "IntrReadArgMem")
ModRef = ReadArgMem;
else if (Property->getName() == "IntrReadMem")
ModRef = ReadMem;
- else if (Property->getName() == "IntrWriteArgMem")
- ModRef = WriteArgMem;
- else if (Property->getName() == "IntrWriteMem")
- ModRef = WriteMem;
- else
- assert(0 && "Unknown property!");
+ else if (Property->getName() == "IntrReadWriteArgMem")
+ ModRef = ReadWriteArgMem;
+ else if (Property->getName() == "Commutative")
+ isCommutative = true;
+ else if (Property->getName() == "Throws")
+ canThrow = true;
+ else if (Property->getName() == "IntrNoDuplicate")
+ isNoDuplicate = true;
+ else if (Property->getName() == "IntrConvergent")
+ isConvergent = true;
+ else if (Property->getName() == "IntrNoReturn")
+ isNoReturn = true;
+ else if (Property->isSubClassOf("NoCapture")) {
+ unsigned ArgNo = Property->getValueAsInt("ArgNo");
+ ArgumentAttributes.push_back(std::make_pair(ArgNo, NoCapture));
+ } else if (Property->isSubClassOf("ReadOnly")) {
+ unsigned ArgNo = Property->getValueAsInt("ArgNo");
+ ArgumentAttributes.push_back(std::make_pair(ArgNo, ReadOnly));
+ } else if (Property->isSubClassOf("ReadNone")) {
+ unsigned ArgNo = Property->getValueAsInt("ArgNo");
+ ArgumentAttributes.push_back(std::make_pair(ArgNo, ReadNone));
+ } else
+ llvm_unreachable("Unknown property!");
}
+
+ // Sort the argument attributes for later benefit.
+ std::sort(ArgumentAttributes.begin(), ArgumentAttributes.end());
}
projects / oota-llvm.git / blobdiff