#include "CodeGenInstruction.h"
#include "CodeGenTarget.h"
-#include "llvm/TableGen/Error.h"
-#include "llvm/TableGen/Record.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/STLExtras.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
#include <set>
using namespace llvm;
DagInit *OutDI = R->getValueAsDag("OutOperandList");
- if (DefInit *Init = dynamic_cast<DefInit*>(OutDI->getOperator())) {
+ if (DefInit *Init = dyn_cast<DefInit>(OutDI->getOperator())) {
if (Init->getDef()->getName() != "outs")
- throw R->getName() + ": invalid def name for output list: use 'outs'";
+ PrintFatalError(R->getName() + ": invalid def name for output list: use 'outs'");
} else
- throw R->getName() + ": invalid output list: use 'outs'";
+ PrintFatalError(R->getName() + ": invalid output list: use 'outs'");
NumDefs = OutDI->getNumArgs();
DagInit *InDI = R->getValueAsDag("InOperandList");
- if (DefInit *Init = dynamic_cast<DefInit*>(InDI->getOperator())) {
+ if (DefInit *Init = dyn_cast<DefInit>(InDI->getOperator())) {
if (Init->getDef()->getName() != "ins")
- throw R->getName() + ": invalid def name for input list: use 'ins'";
+ PrintFatalError(R->getName() + ": invalid def name for input list: use 'ins'");
} else
- throw R->getName() + ": invalid input list: use 'ins'";
+ PrintFatalError(R->getName() + ": invalid input list: use 'ins'");
unsigned MIOperandNo = 0;
std::set<std::string> OperandNames;
ArgName = InDI->getArgName(i-NumDefs);
}
- DefInit *Arg = dynamic_cast<DefInit*>(ArgInit);
+ DefInit *Arg = dyn_cast<DefInit>(ArgInit);
if (!Arg)
- throw "Illegal operand for the '" + R->getName() + "' instruction!";
+ PrintFatalError("Illegal operand for the '" + R->getName() + "' instruction!");
Record *Rec = Arg->getDef();
std::string PrintMethod = "printOperand";
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 (!isa<DefInit>(MIOpInfo->getOperator()) ||
+ cast<DefInit>(MIOpInfo->getOperator())->getDef()->getName() != "ops")
+ PrintFatalError("Bad value for MIOperandInfo in operand '" + Rec->getName() +
+ "'\n");
// If we have MIOpInfo, then we have #operands equal to number of entries
// in MIOperandInfo.
} else if (Rec->isSubClassOf("RegisterClass")) {
OperandType = "OPERAND_REGISTER";
} else if (!Rec->isSubClassOf("PointerLikeRegClass") &&
- Rec->getName() != "unknown")
- throw "Unknown operand class '" + Rec->getName() +
- "' in '" + R->getName() + "' instruction!";
+ !Rec->isSubClassOf("unknown_class"))
+ PrintFatalError("Unknown operand class '" + Rec->getName() +
+ "' in '" + R->getName() + "' instruction!");
// Check that the operand has a name and that it's unique.
if (ArgName.empty())
- throw "In instruction '" + R->getName() + "', operand #" + utostr(i) +
- " has no name!";
+ PrintFatalError("In instruction '" + R->getName() + "', operand #" + utostr(i) +
+ " has no name!");
if (!OperandNames.insert(ArgName).second)
- throw "In instruction '" + R->getName() + "', operand #" + utostr(i) +
- " has the same name as a previous operand!";
+ PrintFatalError("In instruction '" + R->getName() + "', operand #" + utostr(i) +
+ " has the same name as a previous operand!");
OperandList.push_back(OperandInfo(Rec, ArgName, PrintMethod, EncoderMethod,
OperandType, MIOperandNo, NumOps,
/// 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.
+/// specified name, abort.
///
unsigned CGIOperandList::getOperandNamed(StringRef Name) const {
unsigned OpIdx;
if (hasOperandNamed(Name, OpIdx)) return OpIdx;
- throw "'" + TheDef->getName() + "' does not have an operand named '$" +
- Name.str() + "'!";
+ PrintFatalError("'" + TheDef->getName() + "' does not have an operand named '$" +
+ Name.str() + "'!");
}
/// hasOperandNamed - Query whether the instruction has an operand of the
std::pair<unsigned,unsigned>
CGIOperandList::ParseOperandName(const std::string &Op, bool AllowWholeOp) {
if (Op.empty() || Op[0] != '$')
- throw TheDef->getName() + ": Illegal operand name: '" + Op + "'";
+ PrintFatalError(TheDef->getName() + ": Illegal operand name: '" + Op + "'");
std::string OpName = Op.substr(1);
std::string SubOpName;
if (DotIdx != std::string::npos) {
SubOpName = OpName.substr(DotIdx+1);
if (SubOpName.empty())
- throw TheDef->getName() + ": illegal empty suboperand name in '" +Op +"'";
+ PrintFatalError(TheDef->getName() + ": illegal empty suboperand name in '" +Op +"'");
OpName = OpName.substr(0, DotIdx);
}
// 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 + "'";
+ PrintFatalError(TheDef->getName() + ": Illegal to refer to"
+ " whole operand part of complex operand '" + Op + "'");
// Otherwise, return the operand.
return std::make_pair(OpIdx, 0U);
// Find the suboperand number involved.
DagInit *MIOpInfo = OperandList[OpIdx].MIOperandInfo;
if (MIOpInfo == 0)
- throw TheDef->getName() + ": unknown suboperand name in '" + Op + "'";
+ PrintFatalError(TheDef->getName() + ": unknown suboperand name in '" + Op + "'");
// Find the operand with the right name.
for (unsigned i = 0, e = MIOpInfo->getNumArgs(); i != e; ++i)
return std::make_pair(OpIdx, i);
// Otherwise, didn't find it!
- throw TheDef->getName() + ": unknown suboperand name in '" + Op + "'";
+ PrintFatalError(TheDef->getName() + ": unknown suboperand name in '" + Op + "'");
}
static void ParseConstraint(const std::string &CStr, CGIOperandList &Ops) {
std::string Name = CStr.substr(wpos+1);
wpos = Name.find_first_not_of(" \t");
if (wpos == std::string::npos)
- throw "Illegal format for @earlyclobber constraint: '" + CStr + "'";
+ PrintFatalError("Illegal format for @earlyclobber constraint: '" + CStr + "'");
Name = Name.substr(wpos);
std::pair<unsigned,unsigned> Op = Ops.ParseOperandName(Name, false);
// Build the string for the operand
if (!Ops[Op.first].Constraints[Op.second].isNone())
- throw "Operand '" + Name + "' cannot have multiple constraints!";
+ PrintFatalError("Operand '" + Name + "' cannot have multiple constraints!");
Ops[Op.first].Constraints[Op.second] =
CGIOperandList::ConstraintInfo::getEarlyClobber();
return;
// TIED_TO: $src1 = $dst
wpos = Name.find_first_of(" \t");
if (wpos == std::string::npos)
- throw "Illegal format for tied-to constraint: '" + CStr + "'";
+ PrintFatalError("Illegal format for tied-to constraint: '" + CStr + "'");
std::string DestOpName = Name.substr(0, wpos);
std::pair<unsigned,unsigned> DestOp = Ops.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 =
- Ops.ParseOperandName(Name.substr(wpos), false);
- if (SrcOp > DestOp)
- throw "Illegal tied-to operand constraint '" + CStr + "'";
+ PrintFatalError("Illegal format for tied-to constraint: '" + CStr + "'");
+ std::string SrcOpName = Name.substr(wpos);
+ std::pair<unsigned,unsigned> SrcOp = Ops.ParseOperandName(SrcOpName, false);
+ if (SrcOp > DestOp) {
+ std::swap(SrcOp, DestOp);
+ std::swap(SrcOpName, DestOpName);
+ }
unsigned FlatOpNo = Ops.getFlattenedOperandNumber(SrcOp);
if (!Ops[DestOp.first].Constraints[DestOp.second].isNone())
- throw "Operand '" + DestOpName + "' cannot have multiple constraints!";
+ PrintFatalError("Operand '" + DestOpName +
+ "' cannot have multiple constraints!");
Ops[DestOp.first].Constraints[DestOp.second] =
- CGIOperandList::ConstraintInfo::getTied(FlatOpNo);
+ CGIOperandList::ConstraintInfo::getTied(FlatOpNo);
}
static void ParseConstraints(const std::string &CStr, CGIOperandList &Ops) {
// CodeGenInstruction Implementation
//===----------------------------------------------------------------------===//
-CodeGenInstruction::CodeGenInstruction(Record *R) : TheDef(R), Operands(R) {
+CodeGenInstruction::CodeGenInstruction(Record *R)
+ : TheDef(R), Operands(R), InferredFrom(0) {
Namespace = R->getValueAsString("Namespace");
AsmString = R->getValueAsString("AsmString");
isCompare = R->getValueAsBit("isCompare");
isMoveImm = R->getValueAsBit("isMoveImm");
isBitcast = R->getValueAsBit("isBitcast");
+ isSelect = R->getValueAsBit("isSelect");
isBarrier = R->getValueAsBit("isBarrier");
isCall = R->getValueAsBit("isCall");
canFoldAsLoad = R->getValueAsBit("canFoldAsLoad");
- mayLoad = R->getValueAsBit("mayLoad");
- mayStore = R->getValueAsBit("mayStore");
isPredicable = Operands.isPredicable || R->getValueAsBit("isPredicable");
isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
isCommutable = R->getValueAsBit("isCommutable");
hasPostISelHook = R->getValueAsBit("hasPostISelHook");
hasCtrlDep = R->getValueAsBit("hasCtrlDep");
isNotDuplicable = R->getValueAsBit("isNotDuplicable");
- hasSideEffects = R->getValueAsBit("hasSideEffects");
+
+ mayLoad = R->getValueAsBitOrUnset("mayLoad", mayLoad_Unset);
+ mayStore = R->getValueAsBitOrUnset("mayStore", mayStore_Unset);
+ hasSideEffects = R->getValueAsBitOrUnset("hasSideEffects",
+ hasSideEffects_Unset);
neverHasSideEffects = R->getValueAsBit("neverHasSideEffects");
+
isAsCheapAsAMove = R->getValueAsBit("isAsCheapAsAMove");
hasExtraSrcRegAllocReq = R->getValueAsBit("hasExtraSrcRegAllocReq");
hasExtraDefRegAllocReq = R->getValueAsBit("hasExtraDefRegAllocReq");
ImplicitUses = R->getValueAsListOfDefs("Uses");
if (neverHasSideEffects + hasSideEffects > 1)
- throw R->getName() + ": multiple conflicting side-effect flags set!";
+ PrintFatalError(R->getName() + ": multiple conflicting side-effect flags set!");
// Parse Constraints.
ParseConstraints(R->getValueAsString("Constraints"), Operands);
/// successful match, with ResOp set to the result operand to be used.
bool CodeGenInstAlias::tryAliasOpMatch(DagInit *Result, unsigned AliasOpNo,
Record *InstOpRec, bool hasSubOps,
- SMLoc Loc, CodeGenTarget &T,
+ ArrayRef<SMLoc> Loc, CodeGenTarget &T,
ResultOperand &ResOp) {
Init *Arg = Result->getArg(AliasOpNo);
- DefInit *ADI = dynamic_cast<DefInit*>(Arg);
+ DefInit *ADI = dyn_cast<DefInit>(Arg);
if (ADI && ADI->getDef() == InstOpRec) {
// If the operand is a record, it must have a name, and the record type
// must match up with the instruction's argument type.
if (Result->getArgName(AliasOpNo).empty())
- throw TGError(Loc, "result argument #" + utostr(AliasOpNo) +
+ PrintFatalError(Loc, "result argument #" + utostr(AliasOpNo) +
" must have a name!");
ResOp = ResultOperand(Result->getArgName(AliasOpNo), ADI->getDef());
return true;
}
+ // For register operands, the source register class can be a subclass
+ // of the instruction register class, not just an exact match.
+ if (ADI && ADI->getDef()->isSubClassOf("RegisterClass")) {
+ if (!InstOpRec->isSubClassOf("RegisterClass"))
+ return false;
+ if (!T.getRegisterClass(InstOpRec)
+ .hasSubClass(&T.getRegisterClass(ADI->getDef())))
+ return false;
+ ResOp = ResultOperand(Result->getArgName(AliasOpNo), ADI->getDef());
+ return true;
+ }
+
// Handle explicit registers.
if (ADI && ADI->getDef()->isSubClassOf("Register")) {
if (InstOpRec->isSubClassOf("OptionalDefOperand")) {
DagInit *DI = InstOpRec->getValueAsDag("MIOperandInfo");
// The operand info should only have a single (register) entry. We
// want the register class of it.
- InstOpRec = dynamic_cast<DefInit*>(DI->getArg(0))->getDef();
+ InstOpRec = cast<DefInit>(DI->getArg(0))->getDef();
}
if (InstOpRec->isSubClassOf("RegisterOperand"))
if (!T.getRegisterClass(InstOpRec)
.contains(T.getRegBank().getReg(ADI->getDef())))
- throw TGError(Loc, "fixed register " + ADI->getDef()->getName() +
- " is not a member of the " + InstOpRec->getName() +
- " register class!");
+ PrintFatalError(Loc, "fixed register " + ADI->getDef()->getName() +
+ " is not a member of the " + InstOpRec->getName() +
+ " register class!");
if (!Result->getArgName(AliasOpNo).empty())
- throw TGError(Loc, "result fixed register argument must "
- "not have a name!");
+ PrintFatalError(Loc, "result fixed register argument must "
+ "not have a name!");
ResOp = ResultOperand(ADI->getDef());
return true;
if (ADI && ADI->getDef()->getName() == "zero_reg") {
// Check if this is an optional def.
- if (!InstOpRec->isSubClassOf("OptionalDefOperand"))
- throw TGError(Loc, "reg0 used for result that is not an "
- "OptionalDefOperand!");
+ // Tied operands where the source is a sub-operand of a complex operand
+ // need to represent both operands in the alias destination instruction.
+ // Allow zero_reg for the tied portion. This can and should go away once
+ // the MC representation of things doesn't use tied operands at all.
+ //if (!InstOpRec->isSubClassOf("OptionalDefOperand"))
+ // throw TGError(Loc, "reg0 used for result that is not an "
+ // "OptionalDefOperand!");
ResOp = ResultOperand(static_cast<Record*>(0));
return true;
}
- if (IntInit *II = dynamic_cast<IntInit*>(Arg)) {
+ // Literal integers.
+ if (IntInit *II = dyn_cast<IntInit>(Arg)) {
if (hasSubOps || !InstOpRec->isSubClassOf("Operand"))
return false;
// Integer arguments can't have names.
if (!Result->getArgName(AliasOpNo).empty())
- throw TGError(Loc, "result argument #" + utostr(AliasOpNo) +
- " must not have a name!");
+ PrintFatalError(Loc, "result argument #" + utostr(AliasOpNo) +
+ " must not have a name!");
ResOp = ResultOperand(II->getValue());
return true;
}
+ // If both are Operands with the same MVT, allow the conversion. It's
+ // up to the user to make sure the values are appropriate, just like
+ // for isel Pat's.
+ if (InstOpRec->isSubClassOf("Operand") &&
+ ADI->getDef()->isSubClassOf("Operand")) {
+ // FIXME: What other attributes should we check here? Identical
+ // MIOperandInfo perhaps?
+ if (InstOpRec->getValueInit("Type") != ADI->getDef()->getValueInit("Type"))
+ return false;
+ ResOp = ResultOperand(Result->getArgName(AliasOpNo), ADI->getDef());
+ return true;
+ }
+
return false;
}
Result = R->getValueAsDag("ResultInst");
// Verify that the root of the result is an instruction.
- DefInit *DI = dynamic_cast<DefInit*>(Result->getOperator());
+ DefInit *DI = dyn_cast<DefInit>(Result->getOperator());
if (DI == 0 || !DI->getDef()->isSubClassOf("Instruction"))
- throw TGError(R->getLoc(), "result of inst alias should be an instruction");
+ PrintFatalError(R->getLoc(),
+ "result of inst alias should be an instruction");
ResultInst = &T.getInstruction(DI->getDef());
// the same class.
StringMap<Record*> NameClass;
for (unsigned i = 0, e = Result->getNumArgs(); i != e; ++i) {
- DefInit *ADI = dynamic_cast<DefInit*>(Result->getArg(i));
+ DefInit *ADI = dyn_cast<DefInit>(Result->getArg(i));
if (!ADI || Result->getArgName(i).empty())
continue;
// Verify we don't have something like: (someinst GR16:$foo, GR32:$foo)
// same type.
Record *&Entry = NameClass[Result->getArgName(i)];
if (Entry && Entry != ADI->getDef())
- throw TGError(R->getLoc(), "result value $" + Result->getArgName(i) +
- " is both " + Entry->getName() + " and " +
- ADI->getDef()->getName() + "!");
+ PrintFatalError(R->getLoc(), "result value $" + Result->getArgName(i) +
+ " is both " + Entry->getName() + " and " +
+ ADI->getDef()->getName() + "!");
Entry = ADI->getDef();
}
unsigned AliasOpNo = 0;
for (unsigned i = 0, e = ResultInst->Operands.size(); i != e; ++i) {
- // Tied registers don't have an entry in the result dag.
- if (ResultInst->Operands[i].getTiedRegister() != -1)
+ // Tied registers don't have an entry in the result dag unless they're part
+ // of a complex operand, in which case we include them anyways, as we
+ // don't have any other way to specify the whole operand.
+ if (ResultInst->Operands[i].MINumOperands == 1 &&
+ ResultInst->Operands[i].getTiedRegister() != -1)
continue;
if (AliasOpNo >= Result->getNumArgs())
- throw TGError(R->getLoc(), "not enough arguments for instruction!");
+ PrintFatalError(R->getLoc(), "not enough arguments for instruction!");
Record *InstOpRec = ResultInst->Operands[i].Rec;
unsigned NumSubOps = ResultInst->Operands[i].MINumOperands;
ResultOperand ResOp(static_cast<int64_t>(0));
if (tryAliasOpMatch(Result, AliasOpNo, InstOpRec, (NumSubOps > 1),
R->getLoc(), T, ResOp)) {
- ResultOperands.push_back(ResOp);
- ResultInstOperandIndex.push_back(std::make_pair(i, -1));
- ++AliasOpNo;
+ // If this is a simple operand, or a complex operand with a custom match
+ // class, then we can match is verbatim.
+ if (NumSubOps == 1 ||
+ (InstOpRec->getValue("ParserMatchClass") &&
+ InstOpRec->getValueAsDef("ParserMatchClass")
+ ->getValueAsString("Name") != "Imm")) {
+ ResultOperands.push_back(ResOp);
+ ResultInstOperandIndex.push_back(std::make_pair(i, -1));
+ ++AliasOpNo;
+
+ // Otherwise, we need to match each of the suboperands individually.
+ } else {
+ DagInit *MIOI = ResultInst->Operands[i].MIOperandInfo;
+ for (unsigned SubOp = 0; SubOp != NumSubOps; ++SubOp) {
+ Record *SubRec = cast<DefInit>(MIOI->getArg(SubOp))->getDef();
+
+ // Take care to instantiate each of the suboperands with the correct
+ // nomenclature: $foo.bar
+ ResultOperands.push_back(
+ ResultOperand(Result->getArgName(AliasOpNo) + "." +
+ MIOI->getArgName(SubOp), SubRec));
+ ResultInstOperandIndex.push_back(std::make_pair(i, SubOp));
+ }
+ ++AliasOpNo;
+ }
continue;
}
DagInit *MIOI = ResultInst->Operands[i].MIOperandInfo;
for (unsigned SubOp = 0; SubOp != NumSubOps; ++SubOp) {
if (AliasOpNo >= Result->getNumArgs())
- throw TGError(R->getLoc(), "not enough arguments for instruction!");
- Record *SubRec = dynamic_cast<DefInit*>(MIOI->getArg(SubOp))->getDef();
+ PrintFatalError(R->getLoc(), "not enough arguments for instruction!");
+ Record *SubRec = cast<DefInit>(MIOI->getArg(SubOp))->getDef();
if (tryAliasOpMatch(Result, AliasOpNo, SubRec, false,
R->getLoc(), T, ResOp)) {
ResultOperands.push_back(ResOp);
ResultInstOperandIndex.push_back(std::make_pair(i, SubOp));
++AliasOpNo;
} else {
- throw TGError(R->getLoc(), "result argument #" + utostr(AliasOpNo) +
+ PrintFatalError(R->getLoc(), "result argument #" + utostr(AliasOpNo) +
" does not match instruction operand class " +
(SubOp == 0 ? InstOpRec->getName() :SubRec->getName()));
}
}
continue;
}
- throw TGError(R->getLoc(), "result argument #" + utostr(AliasOpNo) +
- " does not match instruction operand class " +
- InstOpRec->getName());
+ PrintFatalError(R->getLoc(), "result argument #" + utostr(AliasOpNo) +
+ " does not match instruction operand class " +
+ InstOpRec->getName());
}
if (AliasOpNo != Result->getNumArgs())
- throw TGError(R->getLoc(), "too many operands for instruction!");
+ PrintFatalError(R->getLoc(), "too many operands for instruction!");
}