// 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 "CodeGenSchedule.h"
-#include "llvm/TableGen/Record.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
#include <algorithm>
using namespace llvm;
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::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::Metadata: return "MVT::Metadata";
case MVT::iPTR: return "MVT::iPTR";
case MVT::iPTRAny: return "MVT::iPTRAny";
/// getTarget - Return the current instance of the Target class.
///
CodeGenTarget::CodeGenTarget(RecordKeeper &records)
- : Records(records), RegBank(0), SchedModels(0) {
+ : 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() {
- delete RegBank;
- delete SchedModels;
+ DeleteContainerSeconds(Instructions);
}
const std::string &CodeGenTarget::getName() const {
Record *CodeGenTarget::getAsmParser() const {
std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyParsers");
if (AsmParserNum >= LI.size())
- throw "Target does not have an AsmParser #" + utostr(AsmParserNum) + "!";
+ PrintFatalError("Target does not have an AsmParser #" +
+ Twine(AsmParserNum) + "!");
return LI[AsmParserNum];
}
std::vector<Record*> LI =
TargetRec->getValueAsListOfDefs("AssemblyParserVariants");
if (i >= LI.size())
- throw "Target does not have an AsmParserVariant #" + utostr(i) + "!";
+ PrintFatalError("Target does not have an AsmParserVariant #" + Twine(i) +
+ "!");
return LI[i];
}
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];
}
CodeGenRegBank &CodeGenTarget::getRegBank() const {
if (!RegBank)
- RegBank = new CodeGenRegBank(Records);
+ RegBank = llvm::make_unique<CodeGenRegBank>(Records);
return *RegBank;
}
/// getRegisterByName - If there is a register with the specific AsmName,
/// return it.
const CodeGenRegister *CodeGenTarget::getRegisterByName(StringRef Name) const {
- const std::vector<CodeGenRegister*> &Regs = getRegBank().getRegisters();
- for (unsigned i = 0, e = Regs.size(); i != e; ++i)
- if (Regs[i]->TheDef->getValueAsString("AsmName") == Name)
- return Regs[i];
-
- return 0;
+ const StringMap<CodeGenRegister*> &Regs = getRegBank().getRegistersByName();
+ StringMap<CodeGenRegister*>::const_iterator I = Regs.find(Name);
+ if (I == Regs.end())
+ return nullptr;
+ return I->second;
}
std::vector<MVT::SimpleValueType> CodeGenTarget::
getRegisterVTs(Record *R) const {
const CodeGenRegister *Reg = getRegBank().getReg(R);
std::vector<MVT::SimpleValueType> Result;
- ArrayRef<CodeGenRegisterClass*> RCs = getRegBank().getRegClasses();
- for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
- const CodeGenRegisterClass &RC = *RCs[i];
+ for (const auto &RC : getRegBank().getRegClasses()) {
if (RC.contains(Reg)) {
- const std::vector<MVT::SimpleValueType> &InVTs = RC.getValueTypes();
+ ArrayRef<MVT::SimpleValueType> InVTs = RC.getValueTypes();
Result.insert(Result.end(), InVTs.begin(), InVTs.end());
}
}
void CodeGenTarget::ReadLegalValueTypes() const {
- ArrayRef<CodeGenRegisterClass*> RCs = getRegBank().getRegClasses();
- 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());
CodeGenSchedModels &CodeGenTarget::getSchedModels() const {
if (!SchedModels)
- SchedModels = new CodeGenSchedModels(Records, *this);
+ 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.
for (unsigned i = 0, e = Insts.size(); i != e; ++i)
DenseMap<const Record*, CodeGenInstruction*>::const_iterator
I = Insts.find(Rec);
- if (Rec == 0 || I == Insts.end())
- throw std::string("Could not find '") + Name + "' instruction!";
+ if (!Rec || I == Insts.end())
+ PrintFatalError(Twine("Could not find '") + Name + "' instruction!");
return I->second;
}
-namespace {
-/// SortInstByName - Sorting predicate to sort instructions by name.
-///
-struct SortInstByName {
- bool operator()(const CodeGenInstruction *Rec1,
- const CodeGenInstruction *Rec2) const {
- return Rec1->TheDef->getName() < Rec2->TheDef->getName();
- }
-};
-}
-
-/// getInstructionsByEnumValue - Return all of the instructions defined by the
-/// target, ordered by their enum value.
+/// \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.
- const char *const FixedInstrs[] = {
- "PHI",
- "INLINEASM",
- "PROLOG_LABEL",
- "EH_LABEL",
- "GC_LABEL",
- "KILL",
- "EXTRACT_SUBREG",
- "INSERT_SUBREG",
- "IMPLICIT_DEF",
- "SUBREG_TO_REG",
- "COPY_TO_REGCLASS",
- "DBG_VALUE",
- "REG_SEQUENCE",
- "COPY",
- "BUNDLE",
- 0
- };
+ 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",
+ nullptr};
const DenseMap<const Record*, CodeGenInstruction*> &Insts = getInstructions();
for (const char *const *p = FixedInstrs; *p; ++p) {
const CodeGenInstruction *Instr = GetInstByName(*p, Insts, Records);
// 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(),
- SortInstByName());
+ std::sort(InstrsByEnum.begin() + EndOfPredefines, InstrsByEnum.end(),
+ [](const CodeGenInstruction *Rec1, const CodeGenInstruction *Rec2) {
+ return Rec1->TheDef->getName() < Rec2->TheDef->getName();
+ });
}
return getInstructionSet()->getValueAsBit("isLittleEndianEncoding");
}
+/// reverseBitsForLittleEndianEncoding - For little-endian instruction bit
+/// encodings, reverse the bit order of all instructions.
+void CodeGenTarget::reverseBitsForLittleEndianEncoding() {
+ if (!isLittleEndianEncoding())
+ return;
+
+ std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
+ for (std::vector<Record*>::iterator I = Insts.begin(), E = Insts.end();
+ I != E; ++I) {
+ Record *R = *I;
+ if (R->getValueAsString("Namespace") == "TargetOpcode" ||
+ R->getValueAsBit("isPseudo"))
+ continue;
+
+ 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);
+ }
+
+ BitsInit *NewBI = BitsInit::get(NewBits);
+
+ // Update the bits in reversed order so that emitInstrOpBits will get the
+ // correct endianness.
+ R->getValue("Inst")->setValue(NewBI);
+ }
+}
+
+/// 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
//
isCommutative = false;
canThrow = false;
isNoReturn = false;
+ isNoDuplicate = false;
if (DefName.size() <= 4 ||
std::string(DefName.begin(), DefName.begin() + 4) != "int_")
- throw "Intrinsic '" + DefName + "' does not start with '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");
+ if (R->getValue("MSBuiltinName")) // Ignore a missing MSBuiltinName field.
+ MSBuiltinName = R->getValueAsString("MSBuiltinName");
TargetPrefix = R->getValueAsString("TargetPrefix");
Name = R->getValueAsString("LLVMName");
// 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.'!";
+ PrintFatalError("Intrinsic '" + DefName + "'s name does not start with 'llvm.'!");
}
// If TargetPrefix is specified, make sure that Name starts with
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 + ".'!";
+ PrintFatalError("Intrinsic '" + DefName + "' does not start with 'llvm." +
+ TargetPrefix + ".'!");
}
// Parse the list of return types.
// 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("LLVMExtendedElementVectorType") &&
- !TyEl->isSubClassOf("LLVMTruncatedElementVectorType")) ||
+ 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 (EVT(VT).isOverloaded()) {
+ if (MVT(VT).isOverloaded()) {
OverloadedVTs.push_back(VT);
isOverloaded = true;
}
// Reject invalid types.
if (VT == MVT::isVoid)
- throw "Intrinsic '" + DefName + " has void in result type list!";
+ PrintFatalError("Intrinsic '" + DefName + " has void in result type list!");
IS.RetVTs.push_back(VT);
IS.RetTypeDefs.push_back(TyEl);
// 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("LLVMExtendedElementVectorType") &&
- !TyEl->isSubClassOf("LLVMTruncatedElementVectorType")) ||
+ 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 (EVT(VT).isOverloaded()) {
+ 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*/)
- throw "Intrinsic '" + DefName + " has void in result type list!";
+ PrintFatalError("Intrinsic '" + DefName + " has void in result type list!");
IS.ParamVTs.push_back(VT);
IS.ParamTypeDefs.push_back(TyEl);
isCommutative = true;
else if (Property->getName() == "Throws")
canThrow = true;
+ else if (Property->getName() == "IntrNoDuplicate")
+ isNoDuplicate = 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!");
}
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