[llvm-commits] [llvm] r45645 - in /llvm/trunk/utils/TableGen: CodeGenInstruction.cpp CodeGenInstruction.h CodeGenTarget.cpp
Chris Lattner
sabre at nondot.org
Sat Jan 5 17:35:39 PST 2008
Author: lattner
Date: Sat Jan 5 19:35:39 2008
New Revision: 45645
URL: http://llvm.org/viewvc/llvm-project?rev=45645&view=rev
Log:
Split the impl of CodeGenInstruction out to its own .cpp file, add a getName() accessor.
Added:
llvm/trunk/utils/TableGen/CodeGenInstruction.cpp
Modified:
llvm/trunk/utils/TableGen/CodeGenInstruction.h
llvm/trunk/utils/TableGen/CodeGenTarget.cpp
Added: llvm/trunk/utils/TableGen/CodeGenInstruction.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenInstruction.cpp?rev=45645&view=auto
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenInstruction.cpp (added)
+++ llvm/trunk/utils/TableGen/CodeGenInstruction.cpp Sat Jan 5 19:35:39 2008
@@ -0,0 +1,280 @@
+//===- CodeGenInstruction.cpp - CodeGen Instruction Class Wrapper ---------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the CodeGenInstruction class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CodeGenInstruction.h"
+#include "Record.h"
+#include "llvm/ADT/StringExtras.h"
+#include <set>
+using namespace llvm;
+
+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 << TOI::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");
+ isIndirectBranch = R->getValueAsBit("isIndirectBranch");
+ isBarrier = R->getValueAsBit("isBarrier");
+ isCall = R->getValueAsBit("isCall");
+ isLoad = R->getValueAsBit("isLoad");
+ isStore = R->getValueAsBit("isStore");
+ isImplicitDef= R->getValueAsBit("isImplicitDef");
+ bool isTwoAddress = R->getValueAsBit("isTwoAddress");
+ isPredicable = R->getValueAsBit("isPredicable");
+ isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
+ isCommutable = R->getValueAsBit("isCommutable");
+ isTerminator = R->getValueAsBit("isTerminator");
+ isReMaterializable = R->getValueAsBit("isReMaterializable");
+ hasDelaySlot = R->getValueAsBit("hasDelaySlot");
+ usesCustomDAGSchedInserter = R->getValueAsBit("usesCustomDAGSchedInserter");
+ hasCtrlDep = R->getValueAsBit("hasCtrlDep");
+ isNotDuplicable = R->getValueAsBit("isNotDuplicable");
+ mayHaveSideEffects = R->getValueAsBit("mayHaveSideEffects");
+ neverHasSideEffects = R->getValueAsBit("neverHasSideEffects");
+ hasOptionalDef = false;
+ hasVariableNumberOfOperands = false;
+
+ if (mayHaveSideEffects && neverHasSideEffects)
+ throw R->getName() +
+ ": cannot have both 'mayHaveSideEffects' and 'neverHasSideEffects' set!";
+
+ DagInit *DI;
+ try {
+ DI = R->getValueAsDag("OutOperandList");
+ } catch (...) {
+ // Error getting operand list, just ignore it (sparcv9).
+ AsmString.clear();
+ OperandList.clear();
+ return;
+ }
+ NumDefs = DI->getNumArgs();
+
+ DagInit *IDI;
+ try {
+ IDI = R->getValueAsDag("InOperandList");
+ } catch (...) {
+ // Error getting operand list, just ignore it (sparcv9).
+ AsmString.clear();
+ OperandList.clear();
+ return;
+ }
+ DI = (DagInit*)(new BinOpInit(BinOpInit::CONCAT, DI, IDI))->Fold();
+
+ 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;
+
+ if (Rec->isSubClassOf("PredicateOperand"))
+ isPredicable = true;
+ else if (Rec->isSubClassOf("OptionalDefOperand"))
+ hasOptionalDef = true;
+ } else if (Rec->getName() == "variable_ops") {
+ hasVariableNumberOfOperands = true;
+ 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;
+ }
+
+ // Parse Constraints.
+ 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 << TOI::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";
+
+ // Parse the DisableEncoding field.
+ std::string DisableEncoding = R->getValueAsString("DisableEncoding");
+ while (1) {
+ std::string OpName = getToken(DisableEncoding, " ,\t");
+ if (OpName.empty()) break;
+
+ // Figure out which operand this is.
+ std::pair<unsigned,unsigned> Op = ParseOperandName(OpName, false);
+
+ // Mark the operand as not-to-be encoded.
+ if (Op.second >= OperandList[Op.first].DoNotEncode.size())
+ OperandList[Op.first].DoNotEncode.resize(Op.second+1);
+ OperandList[Op.first].DoNotEncode[Op.second] = true;
+ }
+}
+
+/// getName - Return the contents of the instruction Name field if set,
+/// otherwise return the name of the def.
+std::string CodeGenInstruction::getName() const {
+ if (!Name.empty()) return Name;
+ return TheDef->getName();
+}
+
+
+/// 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 + "'!";
+}
+
+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);
+ }
+
+ // 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 + "'";
+}
Modified: llvm/trunk/utils/TableGen/CodeGenInstruction.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenInstruction.h?rev=45645&r1=45644&r2=45645&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenInstruction.h (original)
+++ llvm/trunk/utils/TableGen/CodeGenInstruction.h Sat Jan 5 19:35:39 2008
@@ -32,7 +32,11 @@
/// AsmString - The format string used to emit a .s file for the
/// instruction.
std::string AsmString;
-
+
+ /// getName - Return the contents of the instruction Name field if set,
+ /// otherwise return the name of the def.
+ std::string getName() const;
+
/// OperandInfo - The information we keep track of for each operand in the
/// operand list for a tablegen instruction.
struct OperandInfo {
Modified: llvm/trunk/utils/TableGen/CodeGenTarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenTarget.cpp?rev=45645&r1=45644&r2=45645&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenTarget.cpp (original)
+++ llvm/trunk/utils/TableGen/CodeGenTarget.cpp Sat Jan 5 19:35:39 2008
@@ -1,4 +1,4 @@
-//===- CodeGenTarget.cpp - CodeGen Target Class Wrapper ---------*- C++ -*-===//
+//===- CodeGenTarget.cpp - CodeGen Target Class Wrapper -------------------===//
//
// The LLVM Compiler Infrastructure
//
@@ -7,7 +7,7 @@
//
//===----------------------------------------------------------------------===//
//
-// 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.
@@ -20,7 +20,6 @@
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Streams.h"
-#include <set>
#include <algorithm>
using namespace llvm;
@@ -324,267 +323,6 @@
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 << TOI::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");
- isIndirectBranch = R->getValueAsBit("isIndirectBranch");
- isBarrier = R->getValueAsBit("isBarrier");
- isCall = R->getValueAsBit("isCall");
- isLoad = R->getValueAsBit("isLoad");
- isStore = R->getValueAsBit("isStore");
- isImplicitDef= R->getValueAsBit("isImplicitDef");
- bool isTwoAddress = R->getValueAsBit("isTwoAddress");
- isPredicable = R->getValueAsBit("isPredicable");
- isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
- isCommutable = R->getValueAsBit("isCommutable");
- isTerminator = R->getValueAsBit("isTerminator");
- isReMaterializable = R->getValueAsBit("isReMaterializable");
- hasDelaySlot = R->getValueAsBit("hasDelaySlot");
- usesCustomDAGSchedInserter = R->getValueAsBit("usesCustomDAGSchedInserter");
- hasCtrlDep = R->getValueAsBit("hasCtrlDep");
- isNotDuplicable = R->getValueAsBit("isNotDuplicable");
- mayHaveSideEffects = R->getValueAsBit("mayHaveSideEffects");
- neverHasSideEffects = R->getValueAsBit("neverHasSideEffects");
- hasOptionalDef = false;
- hasVariableNumberOfOperands = false;
-
- if (mayHaveSideEffects && neverHasSideEffects)
- throw R->getName() +
- ": cannot have both 'mayHaveSideEffects' and 'neverHasSideEffects' set!";
-
- DagInit *DI;
- try {
- DI = R->getValueAsDag("OutOperandList");
- } catch (...) {
- // Error getting operand list, just ignore it (sparcv9).
- AsmString.clear();
- OperandList.clear();
- return;
- }
- NumDefs = DI->getNumArgs();
-
- DagInit *IDI;
- try {
- IDI = R->getValueAsDag("InOperandList");
- } catch (...) {
- // Error getting operand list, just ignore it (sparcv9).
- AsmString.clear();
- OperandList.clear();
- return;
- }
- DI = (DagInit*)(new BinOpInit(BinOpInit::CONCAT, DI, IDI))->Fold();
-
- 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;
-
- if (Rec->isSubClassOf("PredicateOperand"))
- isPredicable = true;
- else if (Rec->isSubClassOf("OptionalDefOperand"))
- hasOptionalDef = true;
- } else if (Rec->getName() == "variable_ops") {
- hasVariableNumberOfOperands = true;
- 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;
- }
-
- // Parse Constraints.
- 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 << TOI::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";
-
- // Parse the DisableEncoding field.
- std::string DisableEncoding = R->getValueAsString("DisableEncoding");
- while (1) {
- std::string OpName = getToken(DisableEncoding, " ,\t");
- if (OpName.empty()) break;
-
- // Figure out which operand this is.
- std::pair<unsigned,unsigned> Op = ParseOperandName(OpName, false);
-
- // Mark the operand as not-to-be encoded.
- if (Op.second >= OperandList[Op.first].DoNotEncode.size())
- OperandList[Op.first].DoNotEncode.resize(Op.second+1);
- OperandList[Op.first].DoNotEncode[Op.second] = true;
- }
-}
-
-
-
-/// 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 + "'!";
-}
-
-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);
- }
-
- // 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 + "'";
-}
-
-
-
-
//===----------------------------------------------------------------------===//
// ComplexPattern implementation
//
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