//
// 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 "CodeGenIntrinsics.h"
#include "CodeGenTarget.h"
-#include "IntrinsicEmitter.h"
-#include "Record.h"
+#include "SequenceToOffsetTable.h"
+#include "TableGenBackends.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
+#include "llvm/TableGen/StringMatcher.h"
+#include "llvm/TableGen/TableGenBackend.h"
#include <algorithm>
using namespace llvm;
+namespace {
+class IntrinsicEmitter {
+ RecordKeeper &Records;
+ bool TargetOnly;
+ std::string TargetPrefix;
+
+public:
+ IntrinsicEmitter(RecordKeeper &R, bool T)
+ : Records(R), TargetOnly(T) {}
+
+ void run(raw_ostream &OS);
+
+ void EmitPrefix(raw_ostream &OS);
+
+ void EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+
+ void EmitFnNameRecognizer(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitIntrinsicToNameTable(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitIntrinsicToOverloadTable(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitGenerator(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitAttributes(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitModRefBehavior(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitIntrinsicToGCCBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitIntrinsicToMSBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS);
+ void EmitSuffix(raw_ostream &OS);
+};
+} // End anonymous namespace
+
//===----------------------------------------------------------------------===//
// IntrinsicEmitter Implementation
//===----------------------------------------------------------------------===//
-void IntrinsicEmitter::run(std::ostream &OS) {
- EmitSourceFileHeader("Intrinsic Function Source Fragment", OS);
-
- std::vector<CodeGenIntrinsic> Ints = LoadIntrinsics(Records);
+void IntrinsicEmitter::run(raw_ostream &OS) {
+ emitSourceFileHeader("Intrinsic Function Source Fragment", OS);
+
+ 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 verifier.
- EmitVerifier(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 a list of intrinsics with corresponding GCC builtins.
- EmitGCCBuiltinList(Ints, OS);
+
+ // Emit the intrinsic parameter attributes.
+ EmitAttributes(Ints, OS);
+
+ // Emit intrinsic alias analysis mod/ref behavior.
+ EmitModRefBehavior(Ints, OS);
// Emit code to translate GCC builtins into LLVM intrinsics.
EmitIntrinsicToGCCBuiltinMap(Ints, OS);
+
+ // Emit code to translate MS builtins into LLVM intrinsics.
+ EmitIntrinsicToMSBuiltinMap(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) {
OS << " " << Ints[i].EnumName;
OS << ((i != e-1) ? ", " : " ");
- OS << std::string(40-Ints[i].EnumName.size(), ' ')
- << "// " << Ints[i].Name << "\n";
+ if (Ints[i].EnumName.size() < 40)
+ OS << std::string(40-Ints[i].EnumName.size(), ' ');
+ OS << " // " << Ints[i].Name << "\n";
}
OS << "#endif\n\n";
}
void IntrinsicEmitter::
-EmitFnNameRecognizer(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- // Build a function name -> intrinsic name mapping.
- std::map<std::string, unsigned> IntMapping;
+EmitFnNameRecognizer(const std::vector<CodeGenIntrinsic> &Ints,
+ 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;
+
+ // Sort in reverse order of intrinsic name so "abc.def" appears after
+ // "abd.def.ghi" in the overridden name matcher
+ std::sort(IntList.begin(), IntList.end(), [&](unsigned i, unsigned j) {
+ return Ints[i].Name > Ints[j].Name;
+ });
+
+ // 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) {
+EmitIntrinsicToNameTable(const std::vector<CodeGenIntrinsic> &Ints,
+ 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 << ")";
- } else if (VT == MVT::Other) {
- // MVT::OtherVT is used to mean the empty struct type here.
- OS << "StructType::get(std::vector<const Type *>())";
- } else if (VT == MVT::f32) {
- OS << "Type::FloatTy";
- } else if (VT == MVT::f64) {
- OS << "Type::DoubleTy";
- } else if (VT == MVT::isVoid) {
- OS << "Type::VoidTy";
- } else {
- assert(false && "Unsupported ValueType!");
+void IntrinsicEmitter::
+EmitIntrinsicToOverloadTable(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS) {
+ OS << "// Intrinsic ID to overload bitset\n";
+ OS << "#ifdef GET_INTRINSIC_OVERLOAD_TABLE\n";
+ OS << "static const uint8_t OTable[] = {\n";
+ OS << " 0";
+ for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ // Add one to the index so we emit a null bit for the invalid #0 intrinsic.
+ if ((i+1)%8 == 0)
+ OS << ",\n 0";
+ if (Ints[i].isOverloaded)
+ OS << " | (1<<" << (i+1)%8 << ')';
}
+ OS << "\n};\n\n";
+ // OTable contains a true bit at the position if the intrinsic is overloaded.
+ OS << "return (OTable[id/8] & (1 << (id%8))) != 0;\n";
+ OS << "#endif\n\n";
}
-static void EmitTypeGenerate(std::ostream &OS, Record *ArgType,
- unsigned &ArgNo) {
- MVT::ValueType 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) {
- // 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)) {
- OS << "VectorType::get(";
- EmitTypeForValueType(OS, MVT::getVectorElementType(VT));
- OS << ", " << MVT::getVectorNumElements(VT) << ")";
- } else if (VT == MVT::iPTR) {
- OS << "PointerType::get(";
- EmitTypeGenerate(OS, ArgType->getValueAsDef("ElTy"), ArgNo);
- OS << ")";
- } else if (VT == MVT::isVoid) {
- if (ArgNo == 0)
- OS << "Type::VoidTy";
- else
- // MVT::isVoid is used to mean varargs here.
- OS << "...";
- } else {
- EmitTypeForValueType(OS, VT);
+
+// NOTE: This must be kept in synch with the copy in lib/VMCore/Function.cpp!
+enum IIT_Info {
+ // Common values should be encoded with 0-15.
+ IIT_Done = 0,
+ IIT_I1 = 1,
+ IIT_I8 = 2,
+ IIT_I16 = 3,
+ IIT_I32 = 4,
+ IIT_I64 = 5,
+ IIT_F16 = 6,
+ IIT_F32 = 7,
+ IIT_F64 = 8,
+ IIT_V2 = 9,
+ IIT_V4 = 10,
+ IIT_V8 = 11,
+ IIT_V16 = 12,
+ IIT_V32 = 13,
+ IIT_PTR = 14,
+ IIT_ARG = 15,
+
+ // Values from 16+ are only encodable with the inefficient encoding.
+ IIT_V64 = 16,
+ IIT_MMX = 17,
+ IIT_METADATA = 18,
+ IIT_EMPTYSTRUCT = 19,
+ IIT_STRUCT2 = 20,
+ IIT_STRUCT3 = 21,
+ IIT_STRUCT4 = 22,
+ IIT_STRUCT5 = 23,
+ IIT_EXTEND_ARG = 24,
+ IIT_TRUNC_ARG = 25,
+ IIT_ANYPTR = 26,
+ IIT_V1 = 27,
+ IIT_VARARG = 28,
+ IIT_HALF_VEC_ARG = 29,
+ IIT_SAME_VEC_WIDTH_ARG = 30
+};
+
+
+static void EncodeFixedValueType(MVT::SimpleValueType VT,
+ std::vector<unsigned char> &Sig) {
+ if (MVT(VT).isInteger()) {
+ unsigned BitWidth = MVT(VT).getSizeInBits();
+ switch (BitWidth) {
+ default: PrintFatalError("unhandled integer type width in intrinsic!");
+ case 1: return Sig.push_back(IIT_I1);
+ case 8: return Sig.push_back(IIT_I8);
+ case 16: return Sig.push_back(IIT_I16);
+ case 32: return Sig.push_back(IIT_I32);
+ case 64: return Sig.push_back(IIT_I64);
+ }
+ }
+
+ switch (VT) {
+ default: PrintFatalError("unhandled MVT in intrinsic!");
+ case MVT::f16: return Sig.push_back(IIT_F16);
+ case MVT::f32: return Sig.push_back(IIT_F32);
+ case MVT::f64: return Sig.push_back(IIT_F64);
+ case MVT::Metadata: return Sig.push_back(IIT_METADATA);
+ case MVT::x86mmx: return Sig.push_back(IIT_MMX);
+ // MVT::OtherVT is used to mean the empty struct type here.
+ case MVT::Other: return Sig.push_back(IIT_EMPTYSTRUCT);
+ // MVT::isVoid is used to represent varargs here.
+ case MVT::isVoid: return Sig.push_back(IIT_VARARG);
}
}
-/// RecordListComparator - Provide a determinstic comparator for lists of
-/// records.
-namespace {
- struct RecordListComparator {
- bool operator()(const std::vector<Record*> &LHS,
- const std::vector<Record*> &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();
+#ifdef _MSC_VER
+#pragma optimize("",off) // MSVC 2010 optimizer can't deal with this function.
+#endif
+
+static void EncodeFixedType(Record *R, std::vector<unsigned char> &ArgCodes,
+ std::vector<unsigned char> &Sig) {
+
+ if (R->isSubClassOf("LLVMMatchType")) {
+ unsigned Number = R->getValueAsInt("Number");
+ assert(Number < ArgCodes.size() && "Invalid matching number!");
+ if (R->isSubClassOf("LLVMExtendedType"))
+ Sig.push_back(IIT_EXTEND_ARG);
+ else if (R->isSubClassOf("LLVMTruncatedType"))
+ Sig.push_back(IIT_TRUNC_ARG);
+ else if (R->isSubClassOf("LLVMHalfElementsVectorType"))
+ Sig.push_back(IIT_HALF_VEC_ARG);
+ else if (R->isSubClassOf("LLVMVectorSameWidth")) {
+ Sig.push_back(IIT_SAME_VEC_WIDTH_ARG);
+ Sig.push_back((Number << 2) | ArgCodes[Number]);
+ MVT::SimpleValueType VT = getValueType(R->getValueAsDef("ElTy"));
+ EncodeFixedValueType(VT, Sig);
+ return;
}
- };
-}
+ else
+ Sig.push_back(IIT_ARG);
+ return Sig.push_back((Number << 2) | ArgCodes[Number]);
+ }
-void IntrinsicEmitter::EmitVerifier(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- OS << "// Verifier::visitIntrinsicFunctionCall code.\n";
- OS << "#ifdef GET_INTRINSIC_VERIFIER\n";
- OS << " switch (ID) {\n";
- OS << " default: assert(0 && \"Invalid intrinsic!\");\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;
- 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);
-
- // 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) {
- OS << " case Intrinsic::" << Ints[I->second[i]].EnumName << ":\t\t// "
- << Ints[I->second[i]].Name << "\n";
+ MVT::SimpleValueType VT = getValueType(R->getValueAsDef("VT"));
+
+ unsigned Tmp = 0;
+ switch (VT) {
+ default: break;
+ case MVT::iPTRAny: ++Tmp; // FALL THROUGH.
+ case MVT::vAny: ++Tmp; // FALL THROUGH.
+ case MVT::fAny: ++Tmp; // FALL THROUGH.
+ case MVT::iAny: {
+ // If this is an "any" valuetype, then the type is the type of the next
+ // type in the list specified to getIntrinsic().
+ Sig.push_back(IIT_ARG);
+
+ // Figure out what arg # this is consuming, and remember what kind it was.
+ unsigned ArgNo = ArgCodes.size();
+ ArgCodes.push_back(Tmp);
+
+ // Encode what sort of argument it must be in the low 2 bits of the ArgNo.
+ return Sig.push_back((ArgNo << 2) | Tmp);
+ }
+
+ case MVT::iPTR: {
+ unsigned AddrSpace = 0;
+ if (R->isSubClassOf("LLVMQualPointerType")) {
+ AddrSpace = R->getValueAsInt("AddrSpace");
+ assert(AddrSpace < 256 && "Address space exceeds 255");
}
-
- 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];
- if (ArgType->isSubClassOf("LLVMMatchType")) {
- unsigned Number = ArgType->getValueAsInt("Number");
- assert(Number < j && "Invalid matching number!");
- OS << "~" << Number;
- } else {
- MVT::ValueType VT = getValueType(ArgType->getValueAsDef("VT"));
- OS << getEnumName(VT);
- if (VT == MVT::isVoid && j != 0 && j != ArgTypes.size()-1)
- throw "Var arg type not last argument";
- }
- if (j != ArgTypes.size()-1)
- OS << ", ";
+ if (AddrSpace) {
+ Sig.push_back(IIT_ANYPTR);
+ Sig.push_back(AddrSpace);
+ } else {
+ Sig.push_back(IIT_PTR);
}
-
- OS << ");\n";
- OS << " break;\n";
+ return EncodeFixedType(R->getValueAsDef("ElTy"), ArgCodes, Sig);
+ }
}
- OS << " }\n";
- OS << "#endif\n\n";
-}
-void IntrinsicEmitter::EmitGenerator(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- OS << "// Code for generating Intrinsic function declarations.\n";
- OS << "#ifdef GET_INTRINSIC_GENERATOR\n";
- OS << " switch (id) {\n";
- OS << " default: assert(0 && \"Invalid intrinsic!\");\n";
-
- // Similar to GET_INTRINSIC_VERIFIER, batch up cases that have identical
- // types.
- typedef std::map<std::vector<Record*>, 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);
-
- // Loop through the array, emitting one generator 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) {
- OS << " case Intrinsic::" << Ints[I->second[i]].EnumName << ":\t\t// "
- << Ints[I->second[i]].Name << "\n";
- }
-
- const std::vector<Record*> &ArgTypes = I->first;
- unsigned N = ArgTypes.size();
-
- if (N > 1 &&
- getValueType(ArgTypes[N-1]->getValueAsDef("VT")) == MVT::isVoid) {
- OS << " IsVarArg = true;\n";
- --N;
+ if (MVT(VT).isVector()) {
+ MVT VVT = VT;
+ switch (VVT.getVectorNumElements()) {
+ default: PrintFatalError("unhandled vector type width in intrinsic!");
+ case 1: Sig.push_back(IIT_V1); break;
+ case 2: Sig.push_back(IIT_V2); break;
+ case 4: Sig.push_back(IIT_V4); break;
+ case 8: Sig.push_back(IIT_V8); break;
+ case 16: Sig.push_back(IIT_V16); break;
+ case 32: Sig.push_back(IIT_V32); break;
+ case 64: Sig.push_back(IIT_V64); break;
}
-
- unsigned ArgNo = 0;
- OS << " ResultTy = ";
- EmitTypeGenerate(OS, ArgTypes[0], ArgNo);
- OS << ";\n";
-
- for (unsigned j = 1; j != N; ++j) {
- OS << " ArgTys.push_back(";
- EmitTypeGenerate(OS, ArgTypes[j], ArgNo);
- OS << ");\n";
+
+ return EncodeFixedValueType(VVT.getVectorElementType().SimpleTy, Sig);
+ }
+
+ EncodeFixedValueType(VT, Sig);
+}
+
+#ifdef _MSC_VER
+#pragma optimize("",on)
+#endif
+
+/// ComputeFixedEncoding - If we can encode the type signature for this
+/// intrinsic into 32 bits, return it. If not, return ~0U.
+static void ComputeFixedEncoding(const CodeGenIntrinsic &Int,
+ std::vector<unsigned char> &TypeSig) {
+ std::vector<unsigned char> ArgCodes;
+
+ if (Int.IS.RetVTs.empty())
+ TypeSig.push_back(IIT_Done);
+ else if (Int.IS.RetVTs.size() == 1 &&
+ Int.IS.RetVTs[0] == MVT::isVoid)
+ TypeSig.push_back(IIT_Done);
+ else {
+ switch (Int.IS.RetVTs.size()) {
+ case 1: break;
+ case 2: TypeSig.push_back(IIT_STRUCT2); break;
+ case 3: TypeSig.push_back(IIT_STRUCT3); break;
+ case 4: TypeSig.push_back(IIT_STRUCT4); break;
+ case 5: TypeSig.push_back(IIT_STRUCT5); break;
+ default: llvm_unreachable("Unhandled case in struct");
}
- OS << " break;\n";
+
+ for (unsigned i = 0, e = Int.IS.RetVTs.size(); i != e; ++i)
+ EncodeFixedType(Int.IS.RetTypeDefs[i], ArgCodes, TypeSig);
}
- OS << " }\n";
- OS << "#endif\n\n";
+
+ for (unsigned i = 0, e = Int.IS.ParamTypeDefs.size(); i != e; ++i)
+ EncodeFixedType(Int.IS.ParamTypeDefs[i], ArgCodes, TypeSig);
+}
+
+static void printIITEntry(raw_ostream &OS, unsigned char X) {
+ OS << (unsigned)X;
}
-void IntrinsicEmitter::EmitModRefInfo(const std::vector<CodeGenIntrinsic> &Ints,
- std::ostream &OS) {
- OS << "// BasicAliasAnalysis code.\n";
- OS << "#ifdef GET_MODREF_BEHAVIOR\n";
+void IntrinsicEmitter::EmitGenerator(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS) {
+ // If we can compute a 32-bit fixed encoding for this intrinsic, do so and
+ // capture it in this vector, otherwise store a ~0U.
+ std::vector<unsigned> FixedEncodings;
+
+ SequenceToOffsetTable<std::vector<unsigned char> > LongEncodingTable;
+
+ std::vector<unsigned char> TypeSig;
+
+ // Compute the unique argument type info.
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
- switch (Ints[i].ModRef) {
- default: break;
- case CodeGenIntrinsic::NoMem:
- OS << " NoMemoryTable->push_back(\"" << Ints[i].Name << "\");\n";
- break;
- case CodeGenIntrinsic::ReadArgMem:
- case CodeGenIntrinsic::ReadMem:
- OS << " OnlyReadsMemoryTable->push_back(\"" << Ints[i].Name << "\");\n";
- break;
+ // Get the signature for the intrinsic.
+ TypeSig.clear();
+ ComputeFixedEncoding(Ints[i], TypeSig);
+
+ // Check to see if we can encode it into a 32-bit word. We can only encode
+ // 8 nibbles into a 32-bit word.
+ if (TypeSig.size() <= 8) {
+ bool Failed = false;
+ unsigned Result = 0;
+ for (unsigned i = 0, e = TypeSig.size(); i != e; ++i) {
+ // If we had an unencodable argument, bail out.
+ if (TypeSig[i] > 15) {
+ Failed = true;
+ break;
+ }
+ Result = (Result << 4) | TypeSig[e-i-1];
+ }
+
+ // If this could be encoded into a 31-bit word, return it.
+ if (!Failed && (Result >> 31) == 0) {
+ FixedEncodings.push_back(Result);
+ continue;
+ }
}
+
+ // Otherwise, we're going to unique the sequence into the
+ // LongEncodingTable, and use its offset in the 32-bit table instead.
+ LongEncodingTable.add(TypeSig);
+
+ // This is a placehold that we'll replace after the table is laid out.
+ FixedEncodings.push_back(~0U);
}
- OS << "#endif\n\n";
+
+ LongEncodingTable.layout();
+
+ OS << "// Global intrinsic function declaration type table.\n";
+ OS << "#ifdef GET_INTRINSIC_GENERATOR_GLOBAL\n";
+
+ OS << "static const unsigned IIT_Table[] = {\n ";
+
+ for (unsigned i = 0, e = FixedEncodings.size(); i != e; ++i) {
+ if ((i & 7) == 7)
+ OS << "\n ";
+
+ // If the entry fit in the table, just emit it.
+ if (FixedEncodings[i] != ~0U) {
+ OS << "0x" << utohexstr(FixedEncodings[i]) << ", ";
+ continue;
+ }
+
+ TypeSig.clear();
+ ComputeFixedEncoding(Ints[i], TypeSig);
+
+
+ // Otherwise, emit the offset into the long encoding table. We emit it this
+ // way so that it is easier to read the offset in the .def file.
+ OS << "(1U<<31) | " << LongEncodingTable.get(TypeSig) << ", ";
+ }
+
+ OS << "0\n};\n\n";
+
+ // Emit the shared table of register lists.
+ OS << "static const unsigned char IIT_LongEncodingTable[] = {\n";
+ if (!LongEncodingTable.empty())
+ LongEncodingTable.emit(OS, printIITEntry);
+ OS << " 255\n};\n\n";
+
+ OS << "#endif\n\n"; // End of GET_INTRINSIC_GENERATOR_GLOBAL
+}
+
+namespace {
+enum ModRefKind {
+ MRK_none,
+ MRK_readonly,
+ MRK_readnone
+};
}
+static ModRefKind getModRefKind(const CodeGenIntrinsic &intrinsic) {
+ switch (intrinsic.ModRef) {
+ case CodeGenIntrinsic::NoMem:
+ return MRK_readnone;
+ case CodeGenIntrinsic::ReadArgMem:
+ case CodeGenIntrinsic::ReadMem:
+ return MRK_readonly;
+ case CodeGenIntrinsic::ReadWriteArgMem:
+ case CodeGenIntrinsic::ReadWriteMem:
+ return MRK_none;
+ }
+ llvm_unreachable("bad mod-ref kind");
+}
+
+namespace {
+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;
+
+ if (L->isNoDuplicate != R->isNoDuplicate)
+ return R->isNoDuplicate;
+
+ if (L->isNoReturn != R->isNoReturn)
+ return R->isNoReturn;
+
+ // 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);
+ }
+};
+} // End anonymous namespace
+
+/// 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 AttributeSet getAttributes(LLVMContext &C, " << TargetPrefix
+ << "Intrinsic::ID id) {\n";
+ else
+ OS << "AttributeSet Intrinsic::getAttributes(LLVMContext &C, ID id) {\n";
+
+ // Compute the maximum number of attribute arguments and the map
+ typedef std::map<const CodeGenIntrinsic*, unsigned,
+ AttributeComparator> UniqAttrMapTy;
+ UniqAttrMapTy UniqAttributes;
+ unsigned maxArgAttrs = 0;
+ unsigned AttrNum = 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];
+ maxArgAttrs =
+ std::max(maxArgAttrs, unsigned(intrinsic.ArgumentAttributes.size()));
+ unsigned &N = UniqAttributes[&intrinsic];
+ if (N) continue;
+ assert(AttrNum < 256 && "Too many unique attributes for table!");
+ N = ++AttrNum;
+ }
+
+ // Emit an array of AttributeSet. Most intrinsics will have at least one
+ // entry, for the function itself (index ~1), which is usually nounwind.
+ OS << " static const uint8_t IntrinsicsToAttributesMap[] = {\n";
+
+ for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ const CodeGenIntrinsic &intrinsic = Ints[i];
+
+ OS << " " << UniqAttributes[&intrinsic] << ", // "
+ << intrinsic.Name << "\n";
+ }
+ OS << " };\n\n";
+
+ OS << " AttributeSet AS[" << maxArgAttrs+1 << "];\n";
+ OS << " unsigned NumAttrs = 0;\n";
+ OS << " if (id != 0) {\n";
+ OS << " switch(IntrinsicsToAttributesMap[id - ";
+ if (TargetOnly)
+ OS << "Intrinsic::num_intrinsics";
+ else
+ OS << "1";
+ OS << "]) {\n";
+ OS << " default: llvm_unreachable(\"Invalid attribute number\");\n";
+ for (UniqAttrMapTy::const_iterator I = UniqAttributes.begin(),
+ E = UniqAttributes.end(); I != E; ++I) {
+ OS << " case " << I->second << ": {\n";
+
+ const CodeGenIntrinsic &intrinsic = *(I->first);
+
+ // Keep track of the number of attributes we're writing out.
+ unsigned numAttrs = 0;
+
+ // The argument attributes are alreadys sorted by argument index.
+ unsigned ai = 0, ae = intrinsic.ArgumentAttributes.size();
+ if (ae) {
+ while (ai != ae) {
+ unsigned argNo = intrinsic.ArgumentAttributes[ai].first;
+
+ OS << " const Attribute::AttrKind AttrParam" << argNo + 1 <<"[]= {";
+ bool addComma = false;
+
+ do {
+ switch (intrinsic.ArgumentAttributes[ai].second) {
+ case CodeGenIntrinsic::NoCapture:
+ if (addComma)
+ OS << ",";
+ OS << "Attribute::NoCapture";
+ addComma = true;
+ break;
+ case CodeGenIntrinsic::ReadOnly:
+ if (addComma)
+ OS << ",";
+ OS << "Attribute::ReadOnly";
+ addComma = true;
+ break;
+ case CodeGenIntrinsic::ReadNone:
+ if (addComma)
+ OS << ",";
+ OS << "Attributes::ReadNone";
+ addComma = true;
+ break;
+ }
+
+ ++ai;
+ } while (ai != ae && intrinsic.ArgumentAttributes[ai].first == argNo);
+ OS << "};\n";
+ OS << " AS[" << numAttrs++ << "] = AttributeSet::get(C, "
+ << argNo+1 << ", AttrParam" << argNo +1 << ");\n";
+ }
+ }
+
+ ModRefKind modRef = getModRefKind(intrinsic);
+
+ if (!intrinsic.canThrow || modRef || intrinsic.isNoReturn ||
+ intrinsic.isNoDuplicate) {
+ OS << " const Attribute::AttrKind Atts[] = {";
+ bool addComma = false;
+ if (!intrinsic.canThrow) {
+ OS << "Attribute::NoUnwind";
+ addComma = true;
+ }
+ if (intrinsic.isNoReturn) {
+ if (addComma)
+ OS << ",";
+ OS << "Attribute::NoReturn";
+ addComma = true;
+ }
+ if (intrinsic.isNoDuplicate) {
+ if (addComma)
+ OS << ",";
+ OS << "Attribute::NoDuplicate";
+ addComma = true;
+ }
+
+ switch (modRef) {
+ case MRK_none: break;
+ case MRK_readonly:
+ if (addComma)
+ OS << ",";
+ OS << "Attribute::ReadOnly";
+ break;
+ case MRK_readnone:
+ if (addComma)
+ OS << ",";
+ OS << "Attribute::ReadNone";
+ break;
+ }
+ OS << "};\n";
+ OS << " AS[" << numAttrs++ << "] = AttributeSet::get(C, "
+ << "AttributeSet::FunctionIndex, Atts);\n";
+ }
+
+ if (numAttrs) {
+ OS << " NumAttrs = " << numAttrs << ";\n";
+ OS << " break;\n";
+ OS << " }\n";
+ } else {
+ OS << " return AttributeSet();\n";
+ OS << " }\n";
}
}
- OS << " return true; // These intrinsics do not reference memory.\n";
+
+ OS << " }\n";
OS << " }\n";
- OS << "#endif\n\n";
+ OS << " return AttributeSet::get(C, makeArrayRef(AS, 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"
+ << "#ifdef GET_INTRINSIC_MODREF_BEHAVIOR\n"
+ << "assert(iid <= Intrinsic::" << Ints.back().EnumName << " && "
+ << "\"Unknown intrinsic.\");\n\n";
+
+ OS << "static const uint8_t IntrinsicModRefBehavior[] = {\n"
+ << " /* invalid */ UnknownModRefBehavior,\n";
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ OS << " /* " << TargetPrefix << Ints[i].EnumName << " */ ";
switch (Ints[i].ModRef) {
- default: break;
case CodeGenIntrinsic::NoMem:
+ OS << "DoesNotAccessMemory,\n";
+ break;
case CodeGenIntrinsic::ReadArgMem:
+ OS << "OnlyReadsArgumentPointees,\n";
+ break;
case CodeGenIntrinsic::ReadMem:
- OS << " case Intrinsic::" << Ints[i].EnumName << ":\n";
+ OS << "OnlyReadsMemory,\n";
+ break;
+ case CodeGenIntrinsic::ReadWriteArgMem:
+ OS << "OnlyAccessesArgumentPointees,\n";
+ break;
+ case CodeGenIntrinsic::ReadWriteMem:
+ OS << "UnknownModRefBehavior,\n";
break;
}
}
- OS << " return true; // These intrinsics have no side effects.\n";
- OS << " }\n";
- OS << "#endif\n\n";
+ OS << "};\n\n"
+ << "return static_cast<ModRefBehavior>(IntrinsicModRefBehavior[iid]);\n"
+ << "#endif // GET_INTRINSIC_MODREF_BEHAVIOR\n\n";
}
-void IntrinsicEmitter::
-EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, std::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 << " default: BuiltinName = \"\"; break;\n";
- for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
- if (!Ints[i].GCCBuiltinName.empty()) {
- OS << " case Intrinsic::" << Ints[i].EnumName << ": BuiltinName = \""
- << Ints[i].GCCBuiltinName << "\"; break;\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));
}
- OS << " }\n";
- OS << "#endif\n\n";
+
+ 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;
+EmitIntrinsicToGCCBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
+ 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)
- throw "Intrinsic '" + Ints[i].TheDef->getName() +
- "': duplicate GCC builtin name!";
+ // 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)
+ PrintFatalError("Intrinsic '" + Ints[i].TheDef->getName() +
+ "': duplicate GCC builtin name!");
}
}
-
+
OS << "// Get the LLVM intrinsic that corresponds to a GCC builtin.\n";
OS << "// This is used by the C front-end. The GCC builtin name is passed\n";
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 << " return ";
+ if (!TargetPrefix.empty())
+ OS << "(" << TargetPrefix << "Intrinsic::ID)";
+ OS << "Intrinsic::not_intrinsic;\n";
+ OS << "}\n";
+ OS << "#endif\n\n";
+}
+
+void IntrinsicEmitter::
+EmitIntrinsicToMSBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
+ raw_ostream &OS) {
+ std::map<std::string, std::map<std::string, std::string>> TargetBuiltins;
+
+ for (const auto &Intrinsic : Ints) {
+ if (Intrinsic.MSBuiltinName.empty())
+ continue;
+
+ auto &Builtins = TargetBuiltins[Intrinsic.TargetPrefix];
+ if (!Builtins.insert(std::make_pair(Intrinsic.MSBuiltinName,
+ Intrinsic.EnumName)).second)
+ PrintFatalError("Intrinsic '" + Intrinsic.TheDef->getName() + "': "
+ "duplicate MS builtin name!");
+ }
+
+ OS << "// Get the LLVM intrinsic that corresponds to a MS builtin.\n"
+ "// This is used by the C front-end. The MS builtin name is passed\n"
+ "// in as a BuiltinName, and a target prefix (e.g. 'arm') is passed\n"
+ "// in as a TargetPrefix. The result is assigned to 'IntrinsicID'.\n"
+ "#ifdef GET_LLVM_INTRINSIC_FOR_MS_BUILTIN\n";
+
+ OS << (TargetOnly ? "static " + TargetPrefix : "") << "Intrinsic::ID "
+ << (TargetOnly ? "" : "Intrinsic::")
+ << "getIntrinsicForMSBuiltin(const char *TP, const char *BN) {\n";
+ OS << " StringRef BuiltinName(BN);\n"
+ " StringRef TargetPrefix(TP);\n"
+ "\n";
+
+ for (const auto &Builtins : TargetBuiltins) {
+ OS << " ";
+ if (Builtins.first.empty())
+ OS << "/* Target Independent Builtins */ ";
+ else
+ OS << "if (TargetPrefix == \"" << Builtins.first << "\") ";
+ OS << "{\n";
+ EmitTargetBuiltins(Builtins.second, TargetPrefix, OS);
+ OS << "}";
}
- 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";
}
+
+void llvm::EmitIntrinsics(RecordKeeper &RK, raw_ostream &OS, bool TargetOnly) {
+ IntrinsicEmitter(RK, TargetOnly).run(OS);
+}
projects / oota-llvm.git / blobdiff