//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Chris Lattner 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.
//
//===----------------------------------------------------------------------===//
//
#include "CodeGenTarget.h"
#include "IntrinsicEmitter.h"
#include "Record.h"
+#include "StringMatcher.h"
#include "llvm/ADT/StringExtras.h"
#include <algorithm>
using namespace llvm;
// IntrinsicEmitter Implementation
//===----------------------------------------------------------------------===//
-void IntrinsicEmitter::run(std::ostream &OS) {
+void IntrinsicEmitter::run(raw_ostream &OS) {
EmitSourceFileHeader("Intrinsic Function Source Fragment", OS);
- std::vector<CodeGenIntrinsic> Ints = LoadIntrinsics(Records);
+ std::vector<CodeGenIntrinsic> Ints = LoadIntrinsics(Records, TargetOnly);
+
+ if (TargetOnly && !Ints.empty())
+ TargetPrefix = Ints[0].TargetPrefix;
+
+ EmitPrefix(OS);
// Emit the enum information.
EmitEnumInfo(Ints, OS);
// Emit the intrinsic ID -> name table.
EmitIntrinsicToNameTable(Ints, OS);
-
+
+ // Emit the intrinsic ID -> overload table.
+ EmitIntrinsicToOverloadTable(Ints, OS);
+
// Emit the function name recognizer.
EmitFnNameRecognizer(Ints, OS);
// Emit the intrinsic declaration generator.
EmitGenerator(Ints, OS);
- // Emit mod/ref info for each function.
- EmitModRefInfo(Ints, OS);
-
- // Emit table of non-memory accessing intrinsics.
- EmitNoMemoryInfo(Ints, OS);
-
- // Emit side effect info for each intrinsic.
- EmitSideEffectInfo(Ints, OS);
+ // Emit the intrinsic parameter attributes.
+ EmitAttributes(Ints, OS);
+
+ // Emit intrinsic alias analysis mod/ref behavior.
+ EmitModRefBehavior(Ints, OS);
// Emit a list of intrinsics with corresponding GCC builtins.
EmitGCCBuiltinList(Ints, OS);
// Emit code to translate GCC builtins into LLVM intrinsics.
EmitIntrinsicToGCCBuiltinMap(Ints, OS);
+
+ EmitSuffix(OS);
+}
+
+void IntrinsicEmitter::EmitPrefix(raw_ostream &OS) {
+ OS << "// VisualStudio defines setjmp as _setjmp\n"
+ "#if defined(_MSC_VER) && defined(setjmp) && \\\n"
+ " !defined(setjmp_undefined_for_msvc)\n"
+ "# pragma push_macro(\"setjmp\")\n"
+ "# undef setjmp\n"
+ "# define setjmp_undefined_for_msvc\n"
+ "#endif\n\n";
+}
+
+void IntrinsicEmitter::EmitSuffix(raw_ostream &OS) {
+ OS << "#if defined(_MSC_VER) && defined(setjmp_undefined_for_msvc)\n"
+ "// let's return it to _setjmp state\n"
+ "# pragma pop_macro(\"setjmp\")\n"
+ "# undef setjmp_undefined_for_msvc\n"
+ "#endif\n\n";
}
void IntrinsicEmitter::EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
+ raw_ostream &OS) {
OS << "// Enum values for Intrinsics.h\n";
OS << "#ifdef GET_INTRINSIC_ENUM_VALUES\n";
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
void IntrinsicEmitter::
EmitFnNameRecognizer(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- // Build a function name -> intrinsic name mapping.
- std::map<std::string, unsigned> IntMapping;
+ raw_ostream &OS) {
+ // Build a 'first character of function name' -> intrinsic # mapping.
+ std::map<char, std::vector<unsigned> > IntMapping;
for (unsigned i = 0, e = Ints.size(); i != e; ++i)
- IntMapping[Ints[i].Name] = i;
-
+ IntMapping[Ints[i].Name[5]].push_back(i);
+
OS << "// Function name -> enum value recognizer code.\n";
OS << "#ifdef GET_FUNCTION_RECOGNIZER\n";
- OS << " switch (Name[5]) {\n";
- OS << " default:\n";
- // Emit the intrinsics in sorted order.
- char LastChar = 0;
- for (std::map<std::string, unsigned>::iterator I = IntMapping.begin(),
+ OS << " StringRef NameR(Name+6, Len-6); // Skip over 'llvm.'\n";
+ OS << " switch (Name[5]) { // Dispatch on first letter.\n";
+ OS << " default: break;\n";
+ // Emit the intrinsic matching stuff by first letter.
+ for (std::map<char, std::vector<unsigned> >::iterator I = IntMapping.begin(),
E = IntMapping.end(); I != E; ++I) {
- if (I->first[5] != LastChar) {
- LastChar = I->first[5];
- OS << " break;\n";
- OS << " case '" << LastChar << "':\n";
+ OS << " case '" << I->first << "':\n";
+ std::vector<unsigned> &IntList = I->second;
+
+ // Emit all the overloaded intrinsics first, build a table of the
+ // non-overloaded ones.
+ std::vector<StringMatcher::StringPair> MatchTable;
+
+ for (unsigned i = 0, e = IntList.size(); i != e; ++i) {
+ unsigned IntNo = IntList[i];
+ std::string Result = "return " + TargetPrefix + "Intrinsic::" +
+ Ints[IntNo].EnumName + ";";
+
+ if (!Ints[IntNo].isOverloaded) {
+ MatchTable.push_back(std::make_pair(Ints[IntNo].Name.substr(6),Result));
+ continue;
+ }
+
+ // For overloaded intrinsics, only the prefix needs to match
+ std::string TheStr = Ints[IntNo].Name.substr(6);
+ TheStr += '.'; // Require "bswap." instead of bswap.
+ OS << " if (NameR.startswith(\"" << TheStr << "\")) "
+ << Result << '\n';
}
- // For overloaded intrinsics, only the prefix needs to match
- if (Ints[I->second].isOverloaded)
- OS << " if (Len > " << I->first.size()
- << " && !memcmp(Name, \"" << I->first << ".\", "
- << (I->first.size() + 1) << ")) return Intrinsic::"
- << Ints[I->second].EnumName << ";\n";
- else
- OS << " if (Len == " << I->first.size()
- << " && !memcmp(Name, \"" << I->first << "\", "
- << I->first.size() << ")) return Intrinsic::"
- << Ints[I->second].EnumName << ";\n";
+ // Emit the matcher logic for the fixed length strings.
+ StringMatcher("NameR", MatchTable, OS).Emit(1);
+ OS << " break; // end of '" << I->first << "' case.\n";
}
+
OS << " }\n";
OS << "#endif\n\n";
}
void IntrinsicEmitter::
EmitIntrinsicToNameTable(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
+ raw_ostream &OS) {
OS << "// Intrinsic ID to name table\n";
OS << "#ifdef GET_INTRINSIC_NAME_TABLE\n";
OS << " // Note that entry #0 is the invalid intrinsic!\n";
OS << "#endif\n\n";
}
-static void EmitTypeForValueType(std::ostream &OS, MVT::ValueType VT) {
- if (MVT::isInteger(VT)) {
- unsigned BitWidth = MVT::getSizeInBits(VT);
- OS << "IntegerType::get(" << BitWidth << ")";
+void IntrinsicEmitter::
+EmitIntrinsicToOverloadTable(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS) {
+ OS << "// Intrinsic ID to overload table\n";
+ OS << "#ifdef GET_INTRINSIC_OVERLOAD_TABLE\n";
+ OS << " // Note that entry #0 is the invalid intrinsic!\n";
+ for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ OS << " ";
+ if (Ints[i].isOverloaded)
+ OS << "true";
+ else
+ OS << "false";
+ OS << ",\n";
+ }
+ OS << "#endif\n\n";
+}
+
+static void EmitTypeForValueType(raw_ostream &OS, MVT::SimpleValueType VT) {
+ if (EVT(VT).isInteger()) {
+ unsigned BitWidth = EVT(VT).getSizeInBits();
+ OS << "IntegerType::get(Context, " << BitWidth << ")";
} else if (VT == MVT::Other) {
// MVT::OtherVT is used to mean the empty struct type here.
- OS << "StructType::get(std::vector<const Type *>())";
+ OS << "StructType::get(Context)";
} else if (VT == MVT::f32) {
- OS << "Type::FloatTy";
+ OS << "Type::getFloatTy(Context)";
} else if (VT == MVT::f64) {
- OS << "Type::DoubleTy";
+ OS << "Type::getDoubleTy(Context)";
+ } else if (VT == MVT::f80) {
+ OS << "Type::getX86_FP80Ty(Context)";
+ } else if (VT == MVT::f128) {
+ OS << "Type::getFP128Ty(Context)";
+ } else if (VT == MVT::ppcf128) {
+ OS << "Type::getPPC_FP128Ty(Context)";
} else if (VT == MVT::isVoid) {
- OS << "Type::VoidTy";
+ OS << "Type::getVoidTy(Context)";
+ } else if (VT == MVT::Metadata) {
+ OS << "Type::getMetadataTy(Context)";
+ } else if (VT == MVT::x86mmx) {
+ OS << "Type::getX86_MMXTy(Context)";
} else {
assert(false && "Unsupported ValueType!");
}
}
-static void EmitTypeGenerate(std::ostream &OS, Record *ArgType,
+static void EmitTypeGenerate(raw_ostream &OS, const Record *ArgType,
+ unsigned &ArgNo);
+
+static void EmitTypeGenerate(raw_ostream &OS,
+ const std::vector<Record*> &ArgTypes,
unsigned &ArgNo) {
- MVT::ValueType VT = getValueType(ArgType->getValueAsDef("VT"));
+ if (ArgTypes.empty())
+ return EmitTypeForValueType(OS, MVT::isVoid);
+
+ if (ArgTypes.size() == 1)
+ return EmitTypeGenerate(OS, ArgTypes.front(), ArgNo);
+
+ OS << "StructType::get(";
+
+ for (std::vector<Record*>::const_iterator
+ I = ArgTypes.begin(), E = ArgTypes.end(); I != E; ++I) {
+ EmitTypeGenerate(OS, *I, ArgNo);
+ OS << ", ";
+ }
+
+ OS << " NULL)";
+}
+
+static void EmitTypeGenerate(raw_ostream &OS, const Record *ArgType,
+ unsigned &ArgNo) {
+ MVT::SimpleValueType VT = getValueType(ArgType->getValueAsDef("VT"));
if (ArgType->isSubClassOf("LLVMMatchType")) {
unsigned Number = ArgType->getValueAsInt("Number");
assert(Number < ArgNo && "Invalid matching number!");
- OS << "Tys[" << Number << "]";
- } else if (VT == MVT::iAny || VT == MVT::fAny) {
+ if (ArgType->isSubClassOf("LLVMExtendedElementVectorType"))
+ OS << "VectorType::getExtendedElementVectorType"
+ << "(dyn_cast<VectorType>(Tys[" << Number << "]))";
+ else if (ArgType->isSubClassOf("LLVMTruncatedElementVectorType"))
+ OS << "VectorType::getTruncatedElementVectorType"
+ << "(dyn_cast<VectorType>(Tys[" << Number << "]))";
+ else
+ OS << "Tys[" << Number << "]";
+ } else if (VT == MVT::iAny || VT == MVT::fAny || VT == MVT::vAny) {
// NOTE: The ArgNo variable here is not the absolute argument number, it is
// the index of the "arbitrary" type in the Tys array passed to the
// Intrinsic::getDeclaration function. Consequently, we only want to
// increment it when we actually hit an overloaded type. Getting this wrong
// leads to very subtle bugs!
OS << "Tys[" << ArgNo++ << "]";
- } else if (MVT::isVector(VT)) {
+ } else if (EVT(VT).isVector()) {
+ EVT VVT = VT;
OS << "VectorType::get(";
- EmitTypeForValueType(OS, MVT::getVectorElementType(VT));
- OS << ", " << MVT::getVectorNumElements(VT) << ")";
+ EmitTypeForValueType(OS, VVT.getVectorElementType().getSimpleVT().SimpleTy);
+ OS << ", " << VVT.getVectorNumElements() << ")";
} else if (VT == MVT::iPTR) {
- OS << "PointerType::get(";
+ OS << "PointerType::getUnqual(";
EmitTypeGenerate(OS, ArgType->getValueAsDef("ElTy"), ArgNo);
OS << ")";
+ } else if (VT == MVT::iPTRAny) {
+ // Make sure the user has passed us an argument type to overload. If not,
+ // treat it as an ordinary (not overloaded) intrinsic.
+ OS << "(" << ArgNo << " < Tys.size()) ? Tys[" << ArgNo
+ << "] : PointerType::getUnqual(";
+ EmitTypeGenerate(OS, ArgType->getValueAsDef("ElTy"), ArgNo);
+ OS << ")";
+ ++ArgNo;
} else if (VT == MVT::isVoid) {
if (ArgNo == 0)
- OS << "Type::VoidTy";
+ OS << "Type::getVoidTy(Context)";
else
// MVT::isVoid is used to mean varargs here.
OS << "...";
}
}
-/// RecordListComparator - Provide a determinstic comparator for lists of
+/// RecordListComparator - Provide a deterministic comparator for lists of
/// records.
namespace {
+ typedef std::pair<std::vector<Record*>, std::vector<Record*> > RecPair;
struct RecordListComparator {
- bool operator()(const std::vector<Record*> &LHS,
- const std::vector<Record*> &RHS) const {
+ bool operator()(const RecPair &LHS,
+ const RecPair &RHS) const {
unsigned i = 0;
- do {
- if (i == RHS.size()) return false; // RHS is shorter than LHS.
- if (LHS[i] != RHS[i])
- return LHS[i]->getName() < RHS[i]->getName();
- } while (++i != LHS.size());
-
- return i != RHS.size();
+ const std::vector<Record*> *LHSVec = &LHS.first;
+ const std::vector<Record*> *RHSVec = &RHS.first;
+ unsigned RHSSize = RHSVec->size();
+ unsigned LHSSize = LHSVec->size();
+
+ for (; i != LHSSize; ++i) {
+ if (i == RHSSize) return false; // RHS is shorter than LHS.
+ if ((*LHSVec)[i] != (*RHSVec)[i])
+ return (*LHSVec)[i]->getName() < (*RHSVec)[i]->getName();
+ }
+
+ if (i != RHSSize) return true;
+
+ i = 0;
+ LHSVec = &LHS.second;
+ RHSVec = &RHS.second;
+ RHSSize = RHSVec->size();
+ LHSSize = LHSVec->size();
+
+ for (i = 0; i != LHSSize; ++i) {
+ if (i == RHSSize) return false; // RHS is shorter than LHS.
+ if ((*LHSVec)[i] != (*RHSVec)[i])
+ return (*LHSVec)[i]->getName() < (*RHSVec)[i]->getName();
+ }
+
+ return i != RHSSize;
}
};
}
void IntrinsicEmitter::EmitVerifier(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
+ raw_ostream &OS) {
OS << "// Verifier::visitIntrinsicFunctionCall code.\n";
OS << "#ifdef GET_INTRINSIC_VERIFIER\n";
OS << " switch (ID) {\n";
// This checking can emit a lot of very common code. To reduce the amount of
// code that we emit, batch up cases that have identical types. This avoids
// problems where GCC can run out of memory compiling Verifier.cpp.
- typedef std::map<std::vector<Record*>, std::vector<unsigned>,
- RecordListComparator> MapTy;
+ typedef std::map<RecPair, std::vector<unsigned>, RecordListComparator> MapTy;
MapTy UniqueArgInfos;
// Compute the unique argument type info.
for (unsigned i = 0, e = Ints.size(); i != e; ++i)
- UniqueArgInfos[Ints[i].ArgTypeDefs].push_back(i);
+ UniqueArgInfos[make_pair(Ints[i].IS.RetTypeDefs,
+ Ints[i].IS.ParamTypeDefs)].push_back(i);
// Loop through the array, emitting one comparison for each batch.
for (MapTy::iterator I = UniqueArgInfos.begin(),
E = UniqueArgInfos.end(); I != E; ++I) {
- for (unsigned i = 0, e = I->second.size(); i != e; ++i) {
+ for (unsigned i = 0, e = I->second.size(); i != e; ++i)
OS << " case Intrinsic::" << Ints[I->second[i]].EnumName << ":\t\t// "
<< Ints[I->second[i]].Name << "\n";
- }
- const std::vector<Record*> &ArgTypes = I->first;
- OS << " VerifyIntrinsicPrototype(ID, IF, " << ArgTypes.size() << ", ";
- for (unsigned j = 0; j != ArgTypes.size(); ++j) {
- Record *ArgType = ArgTypes[j];
+ const RecPair &ArgTypes = I->first;
+ const std::vector<Record*> &RetTys = ArgTypes.first;
+ const std::vector<Record*> &ParamTys = ArgTypes.second;
+ std::vector<unsigned> OverloadedTypeIndices;
+
+ OS << " VerifyIntrinsicPrototype(ID, IF, " << RetTys.size() << ", "
+ << ParamTys.size();
+
+ // Emit return types.
+ for (unsigned j = 0, je = RetTys.size(); j != je; ++j) {
+ Record *ArgType = RetTys[j];
+ OS << ", ";
+
+ if (ArgType->isSubClassOf("LLVMMatchType")) {
+ unsigned Number = ArgType->getValueAsInt("Number");
+ assert(Number < OverloadedTypeIndices.size() &&
+ "Invalid matching number!");
+ Number = OverloadedTypeIndices[Number];
+ if (ArgType->isSubClassOf("LLVMExtendedElementVectorType"))
+ OS << "~(ExtendedElementVectorType | " << Number << ")";
+ else if (ArgType->isSubClassOf("LLVMTruncatedElementVectorType"))
+ OS << "~(TruncatedElementVectorType | " << Number << ")";
+ else
+ OS << "~" << Number;
+ } else {
+ MVT::SimpleValueType VT = getValueType(ArgType->getValueAsDef("VT"));
+ OS << getEnumName(VT);
+
+ if (EVT(VT).isOverloaded())
+ OverloadedTypeIndices.push_back(j);
+
+ if (VT == MVT::isVoid && j != 0 && j != je - 1)
+ throw "Var arg type not last argument";
+ }
+ }
+
+ // Emit the parameter types.
+ for (unsigned j = 0, je = ParamTys.size(); j != je; ++j) {
+ Record *ArgType = ParamTys[j];
+ OS << ", ";
+
if (ArgType->isSubClassOf("LLVMMatchType")) {
unsigned Number = ArgType->getValueAsInt("Number");
- assert(Number < j && "Invalid matching number!");
- OS << "~" << Number;
+ assert(Number < OverloadedTypeIndices.size() &&
+ "Invalid matching number!");
+ Number = OverloadedTypeIndices[Number];
+ if (ArgType->isSubClassOf("LLVMExtendedElementVectorType"))
+ OS << "~(ExtendedElementVectorType | " << Number << ")";
+ else if (ArgType->isSubClassOf("LLVMTruncatedElementVectorType"))
+ OS << "~(TruncatedElementVectorType | " << Number << ")";
+ else
+ OS << "~" << Number;
} else {
- MVT::ValueType VT = getValueType(ArgType->getValueAsDef("VT"));
+ MVT::SimpleValueType VT = getValueType(ArgType->getValueAsDef("VT"));
OS << getEnumName(VT);
- if (VT == MVT::isVoid && j != 0 && j != ArgTypes.size()-1)
+
+ if (EVT(VT).isOverloaded())
+ OverloadedTypeIndices.push_back(j + RetTys.size());
+
+ if (VT == MVT::isVoid && j != 0 && j != je - 1)
throw "Var arg type not last argument";
}
- if (j != ArgTypes.size()-1)
- OS << ", ";
}
OS << ");\n";
}
void IntrinsicEmitter::EmitGenerator(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
+ raw_ostream &OS) {
OS << "// Code for generating Intrinsic function declarations.\n";
OS << "#ifdef GET_INTRINSIC_GENERATOR\n";
OS << " switch (id) {\n";
// Similar to GET_INTRINSIC_VERIFIER, batch up cases that have identical
// types.
- typedef std::map<std::vector<Record*>, std::vector<unsigned>,
- RecordListComparator> MapTy;
+ typedef std::map<RecPair, std::vector<unsigned>, RecordListComparator> MapTy;
MapTy UniqueArgInfos;
// Compute the unique argument type info.
for (unsigned i = 0, e = Ints.size(); i != e; ++i)
- UniqueArgInfos[Ints[i].ArgTypeDefs].push_back(i);
+ UniqueArgInfos[make_pair(Ints[i].IS.RetTypeDefs,
+ Ints[i].IS.ParamTypeDefs)].push_back(i);
// Loop through the array, emitting one generator for each batch.
+ std::string IntrinsicStr = TargetPrefix + "Intrinsic::";
+
for (MapTy::iterator I = UniqueArgInfos.begin(),
E = UniqueArgInfos.end(); I != E; ++I) {
- for (unsigned i = 0, e = I->second.size(); i != e; ++i) {
- OS << " case Intrinsic::" << Ints[I->second[i]].EnumName << ":\t\t// "
- << Ints[I->second[i]].Name << "\n";
- }
+ for (unsigned i = 0, e = I->second.size(); i != e; ++i)
+ OS << " case " << IntrinsicStr << Ints[I->second[i]].EnumName
+ << ":\t\t// " << Ints[I->second[i]].Name << "\n";
- const std::vector<Record*> &ArgTypes = I->first;
- unsigned N = ArgTypes.size();
+ const RecPair &ArgTypes = I->first;
+ const std::vector<Record*> &RetTys = ArgTypes.first;
+ const std::vector<Record*> &ParamTys = ArgTypes.second;
+
+ unsigned N = ParamTys.size();
if (N > 1 &&
- getValueType(ArgTypes[N-1]->getValueAsDef("VT")) == MVT::isVoid) {
+ getValueType(ParamTys[N - 1]->getValueAsDef("VT")) == MVT::isVoid) {
OS << " IsVarArg = true;\n";
--N;
}
-
+
unsigned ArgNo = 0;
OS << " ResultTy = ";
- EmitTypeGenerate(OS, ArgTypes[0], ArgNo);
+ EmitTypeGenerate(OS, RetTys, ArgNo);
OS << ";\n";
- for (unsigned j = 1; j != N; ++j) {
+ for (unsigned j = 0; j != N; ++j) {
OS << " ArgTys.push_back(";
- EmitTypeGenerate(OS, ArgTypes[j], ArgNo);
+ EmitTypeGenerate(OS, ParamTys[j], ArgNo);
OS << ");\n";
}
+
OS << " break;\n";
}
+
OS << " }\n";
OS << "#endif\n\n";
}
-void IntrinsicEmitter::EmitModRefInfo(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- OS << "// BasicAliasAnalysis code.\n";
- OS << "#ifdef GET_MODREF_BEHAVIOR\n";
- for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
- switch (Ints[i].ModRef) {
- default: break;
+namespace {
+ enum ModRefKind {
+ MRK_none,
+ MRK_readonly,
+ MRK_readnone
+ };
+
+ ModRefKind getModRefKind(const CodeGenIntrinsic &intrinsic) {
+ switch (intrinsic.ModRef) {
case CodeGenIntrinsic::NoMem:
- OS << " NoMemoryIntrinsics->set(Intrinsic::" << Ints[i].EnumName << ");\n";
- break;
+ return MRK_readnone;
case CodeGenIntrinsic::ReadArgMem:
case CodeGenIntrinsic::ReadMem:
- OS << " OnlyReadsMemoryIntrinsics->set(Intrinsic::" << Ints[i].EnumName << ");\n";
- break;
+ return MRK_readonly;
+ case CodeGenIntrinsic::ReadWriteArgMem:
+ case CodeGenIntrinsic::ReadWriteMem:
+ return MRK_none;
}
+ assert(0 && "bad mod-ref kind");
+ return MRK_none;
}
- OS << "#endif\n\n";
+
+ struct AttributeComparator {
+ bool operator()(const CodeGenIntrinsic *L, const CodeGenIntrinsic *R) const {
+ // Sort throwing intrinsics after non-throwing intrinsics.
+ if (L->canThrow != R->canThrow)
+ return R->canThrow;
+
+ // Try to order by readonly/readnone attribute.
+ ModRefKind LK = getModRefKind(*L);
+ ModRefKind RK = getModRefKind(*R);
+ if (LK != RK) return (LK > RK);
+
+ // Order by argument attributes.
+ // This is reliable because each side is already sorted internally.
+ return (L->ArgumentAttributes < R->ArgumentAttributes);
+ }
+ };
}
+/// EmitAttributes - This emits the Intrinsic::getAttributes method.
void IntrinsicEmitter::
-EmitNoMemoryInfo(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS) {
- OS << "// SelectionDAGIsel code.\n";
- OS << "#ifdef GET_NO_MEMORY_INTRINSICS\n";
- OS << " switch (IntrinsicID) {\n";
- OS << " default: break;\n";
+EmitAttributes(const std::vector<CodeGenIntrinsic> &Ints, raw_ostream &OS) {
+ OS << "// Add parameter attributes that are not common to all intrinsics.\n";
+ OS << "#ifdef GET_INTRINSIC_ATTRIBUTES\n";
+ if (TargetOnly)
+ OS << "static AttrListPtr getAttributes(" << TargetPrefix
+ << "Intrinsic::ID id) {\n";
+ else
+ OS << "AttrListPtr Intrinsic::getAttributes(ID id) {\n";
+
+ // Compute the maximum number of attribute arguments.
+ std::vector<const CodeGenIntrinsic*> sortedIntrinsics(Ints.size());
+ unsigned maxArgAttrs = 0;
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
- switch (Ints[i].ModRef) {
- default: break;
- case CodeGenIntrinsic::NoMem:
- OS << " case Intrinsic::" << Ints[i].EnumName << ":\n";
- break;
+ const CodeGenIntrinsic &intrinsic = Ints[i];
+ sortedIntrinsics[i] = &intrinsic;
+ maxArgAttrs =
+ std::max(maxArgAttrs, unsigned(intrinsic.ArgumentAttributes.size()));
+ }
+
+ // Emit an array of AttributeWithIndex. Most intrinsics will have
+ // at least one entry, for the function itself (index ~1), which is
+ // usually nounwind.
+ OS << " AttributeWithIndex AWI[" << maxArgAttrs+1 << "];\n";
+ OS << " unsigned NumAttrs = 0;\n";
+ OS << " switch (id) {\n";
+ OS << " default: break;\n";
+
+ AttributeComparator precedes;
+
+ std::stable_sort(sortedIntrinsics.begin(), sortedIntrinsics.end(), precedes);
+
+ for (unsigned i = 0, e = sortedIntrinsics.size(); i != e; ++i) {
+ const CodeGenIntrinsic &intrinsic = *sortedIntrinsics[i];
+ OS << " case " << TargetPrefix << "Intrinsic::"
+ << intrinsic.EnumName << ":\n";
+
+ // Fill out the case if this is the last case for this range of
+ // intrinsics.
+ if (i + 1 != e && !precedes(&intrinsic, sortedIntrinsics[i + 1]))
+ continue;
+
+ // Keep track of the number of attributes we're writing out.
+ unsigned numAttrs = 0;
+
+ // The argument attributes are alreadys sorted by argument index.
+ for (unsigned ai = 0, ae = intrinsic.ArgumentAttributes.size(); ai != ae;) {
+ unsigned argNo = intrinsic.ArgumentAttributes[ai].first;
+
+ OS << " AWI[" << numAttrs++ << "] = AttributeWithIndex::get("
+ << argNo+1 << ", ";
+
+ bool moreThanOne = false;
+
+ do {
+ if (moreThanOne) OS << '|';
+
+ switch (intrinsic.ArgumentAttributes[ai].second) {
+ case CodeGenIntrinsic::NoCapture:
+ OS << "Attribute::NoCapture";
+ break;
+ }
+
+ ++ai;
+ moreThanOne = true;
+ } while (ai != ae && intrinsic.ArgumentAttributes[ai].first == argNo);
+
+ OS << ");\n";
+ }
+
+ ModRefKind modRef = getModRefKind(intrinsic);
+
+ if (!intrinsic.canThrow || modRef) {
+ OS << " AWI[" << numAttrs++ << "] = AttributeWithIndex::get(~0, ";
+ if (!intrinsic.canThrow) {
+ OS << "Attribute::NoUnwind";
+ if (modRef) OS << '|';
+ }
+ switch (modRef) {
+ case MRK_none: break;
+ case MRK_readonly: OS << "Attribute::ReadOnly"; break;
+ case MRK_readnone: OS << "Attribute::ReadNone"; break;
+ }
+ OS << ");\n";
+ }
+
+ if (numAttrs) {
+ OS << " NumAttrs = " << numAttrs << ";\n";
+ OS << " break;\n";
+ } else {
+ OS << " return AttrListPtr();\n";
}
}
- OS << " return true; // These intrinsics do not reference memory.\n";
+
OS << " }\n";
- OS << "#endif\n\n";
+ OS << " return AttrListPtr::get(AWI, NumAttrs);\n";
+ OS << "}\n";
+ OS << "#endif // GET_INTRINSIC_ATTRIBUTES\n\n";
}
+/// EmitModRefBehavior - Determine intrinsic alias analysis mod/ref behavior.
void IntrinsicEmitter::
-EmitSideEffectInfo(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS){
- OS << "// Return true if doesn't access or only reads memory.\n";
- OS << "#ifdef GET_SIDE_EFFECT_INFO\n";
- OS << " switch (IntrinsicID) {\n";
- OS << " default: break;\n";
+EmitModRefBehavior(const std::vector<CodeGenIntrinsic> &Ints, raw_ostream &OS){
+ OS << "// Determine intrinsic alias analysis mod/ref behavior.\n";
+ OS << "#ifdef GET_INTRINSIC_MODREF_BEHAVIOR\n";
+ OS << "switch (iid) {\n";
+ OS << "default:\n return UnknownModRefBehavior;\n";
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ if (Ints[i].ModRef == CodeGenIntrinsic::ReadWriteMem)
+ continue;
+ OS << "case " << TargetPrefix << "Intrinsic::" << Ints[i].EnumName
+ << ":\n";
switch (Ints[i].ModRef) {
- default: break;
+ default:
+ assert(false && "Unknown Mod/Ref type!");
case CodeGenIntrinsic::NoMem:
+ OS << " return DoesNotAccessMemory;\n";
+ break;
case CodeGenIntrinsic::ReadArgMem:
+ OS << " return OnlyReadsArgumentPointees;\n";
+ break;
case CodeGenIntrinsic::ReadMem:
- OS << " case Intrinsic::" << Ints[i].EnumName << ":\n";
+ OS << " return OnlyReadsMemory;\n";
+ break;
+ case CodeGenIntrinsic::ReadWriteArgMem:
+ OS << " return OnlyAccessesArgumentPointees;\n";
break;
}
}
- OS << " return true; // These intrinsics have no side effects.\n";
- OS << " }\n";
- OS << "#endif\n\n";
+ OS << "}\n";
+ OS << "#endif // GET_INTRINSIC_MODREF_BEHAVIOR\n\n";
}
void IntrinsicEmitter::
-EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS){
+EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, raw_ostream &OS){
OS << "// Get the GCC builtin that corresponds to an LLVM intrinsic.\n";
OS << "#ifdef GET_GCC_BUILTIN_NAME\n";
OS << " switch (F->getIntrinsicID()) {\n";
OS << "#endif\n\n";
}
+/// EmitTargetBuiltins - All of the builtins in the specified map are for the
+/// same target, and we already checked it.
+static void EmitTargetBuiltins(const std::map<std::string, std::string> &BIM,
+ const std::string &TargetPrefix,
+ raw_ostream &OS) {
+
+ std::vector<StringMatcher::StringPair> Results;
+
+ for (std::map<std::string, std::string>::const_iterator I = BIM.begin(),
+ E = BIM.end(); I != E; ++I) {
+ std::string ResultCode =
+ "return " + TargetPrefix + "Intrinsic::" + I->second + ";";
+ Results.push_back(StringMatcher::StringPair(I->first, ResultCode));
+ }
+
+ StringMatcher("BuiltinName", Results, OS).Emit();
+}
+
+
void IntrinsicEmitter::
EmitIntrinsicToGCCBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- typedef std::map<std::pair<std::string, std::string>, std::string> BIMTy;
+ raw_ostream &OS) {
+ typedef std::map<std::string, std::map<std::string, std::string> > BIMTy;
BIMTy BuiltinMap;
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
if (!Ints[i].GCCBuiltinName.empty()) {
- std::pair<std::string, std::string> Key(Ints[i].GCCBuiltinName,
- Ints[i].TargetPrefix);
- if (!BuiltinMap.insert(std::make_pair(Key, Ints[i].EnumName)).second)
+ // Get the map for this target prefix.
+ std::map<std::string, std::string> &BIM =BuiltinMap[Ints[i].TargetPrefix];
+
+ if (!BIM.insert(std::make_pair(Ints[i].GCCBuiltinName,
+ Ints[i].EnumName)).second)
throw "Intrinsic '" + Ints[i].TheDef->getName() +
"': duplicate GCC builtin name!";
}
OS << "// in as BuiltinName, and a target prefix (e.g. 'ppc') is passed\n";
OS << "// in as TargetPrefix. The result is assigned to 'IntrinsicID'.\n";
OS << "#ifdef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN\n";
- OS << " if (0);\n";
+
+ if (TargetOnly) {
+ OS << "static " << TargetPrefix << "Intrinsic::ID "
+ << "getIntrinsicForGCCBuiltin(const char "
+ << "*TargetPrefixStr, const char *BuiltinNameStr) {\n";
+ } else {
+ OS << "Intrinsic::ID Intrinsic::getIntrinsicForGCCBuiltin(const char "
+ << "*TargetPrefixStr, const char *BuiltinNameStr) {\n";
+ }
+
+ OS << " StringRef BuiltinName(BuiltinNameStr);\n";
+ OS << " StringRef TargetPrefix(TargetPrefixStr);\n\n";
+
// Note: this could emit significantly better code if we cared.
for (BIMTy::iterator I = BuiltinMap.begin(), E = BuiltinMap.end();I != E;++I){
- OS << " else if (";
- if (!I->first.second.empty()) {
- // Emit this as a strcmp, so it can be constant folded by the FE.
- OS << "!strcmp(TargetPrefix, \"" << I->first.second << "\") &&\n"
- << " ";
- }
- OS << "!strcmp(BuiltinName, \"" << I->first.first << "\"))\n";
- OS << " IntrinsicID = Intrinsic::" << I->second << ";\n";
+ OS << " ";
+ if (!I->first.empty())
+ OS << "if (TargetPrefix == \"" << I->first << "\") ";
+ else
+ OS << "/* Target Independent Builtins */ ";
+ OS << "{\n";
+
+ // Emit the comparisons for this target prefix.
+ EmitTargetBuiltins(I->second, TargetPrefix, OS);
+ OS << " }\n";
}
- OS << " else\n";
- OS << " IntrinsicID = Intrinsic::not_intrinsic;\n";
+ OS << " return ";
+ if (!TargetPrefix.empty())
+ OS << "(" << TargetPrefix << "Intrinsic::ID)";
+ OS << "Intrinsic::not_intrinsic;\n";
+ OS << "}\n";
OS << "#endif\n\n";
}