//
// 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 "llvm/ADT/StringExtras.h"
void IntrinsicEmitter::run(std::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;
// Emit the enum information.
EmitEnumInfo(Ints, OS);
// Emit the intrinsic verifier.
EmitVerifier(Ints, OS);
- // Emit mod/ref info for each function.
- EmitModRefInfo(Ints, OS);
-
- // Emit table of non-memory accessing intrinsics.
- EmitNoMemoryInfo(Ints, OS);
+ // Emit the intrinsic declaration generator.
+ EmitGenerator(Ints, OS);
- // Emit side effect info for each intrinsic.
- EmitSideEffectInfo(Ints, OS);
+ // Emit the intrinsic parameter attributes.
+ EmitAttributes(Ints, OS);
// Emit a list of intrinsics with corresponding GCC builtins.
EmitGCCBuiltinList(Ints, OS);
EmitFnNameRecognizer(const std::vector<CodeGenIntrinsic> &Ints,
std::ostream &OS) {
// Build a function name -> intrinsic name mapping.
- std::map<std::string, std::string> IntMapping;
+ std::map<std::string, unsigned> IntMapping;
for (unsigned i = 0, e = Ints.size(); i != e; ++i)
- IntMapping[Ints[i].Name] = Ints[i].EnumName;
+ IntMapping[Ints[i].Name] = i;
OS << "// Function name -> enum value recognizer code.\n";
OS << "#ifdef GET_FUNCTION_RECOGNIZER\n";
OS << " switch (Name[5]) {\n";
- OS << " default: break;\n";
+ OS << " default:\n";
// Emit the intrinsics in sorted order.
char LastChar = 0;
- for (std::map<std::string, std::string>::iterator I = IntMapping.begin(),
+ for (std::map<std::string, 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 << " if (Name == \"" << I->first << "\") return Intrinsic::"
- << I->second << ";\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 " << TargetPrefix << "Intrinsic::"
+ << Ints[I->second].EnumName << ";\n";
+ else
+ OS << " if (Len == " << I->first.size()
+ << " && !memcmp(Name, \"" << I->first << "\", "
+ << I->first.size() << ")) return " << TargetPrefix << "Intrinsic::"
+ << Ints[I->second].EnumName << ";\n";
}
OS << " }\n";
- OS << " // The 'llvm.' namespace is reserved!\n";
- OS << " assert(0 && \"Unknown LLVM intrinsic function!\");\n";
OS << "#endif\n\n";
}
OS << "#endif\n\n";
}
-static void EmitTypeVerify(std::ostream &OS, Record *ArgType) {
- if (ArgType->getValueAsString("TypeVal") == "...") {
- OS << "-2, ";
+static void EmitTypeForValueType(std::ostream &OS, MVT::SimpleValueType VT) {
+ if (MVT(VT).isInteger()) {
+ unsigned BitWidth = MVT(VT).getSizeInBits();
+ 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::f80) {
+ OS << "Type::X86_FP80Ty";
+ } else if (VT == MVT::f128) {
+ OS << "Type::FP128Ty";
+ } else if (VT == MVT::ppcf128) {
+ OS << "Type::PPC_FP128Ty";
+ } else if (VT == MVT::isVoid) {
+ OS << "Type::VoidTy";
+ } else {
+ assert(false && "Unsupported ValueType!");
+ }
+}
+
+static void EmitTypeGenerate(std::ostream &OS, const Record *ArgType,
+ unsigned &ArgNo);
+
+static void EmitTypeGenerate(std::ostream &OS,
+ const std::vector<Record*> &ArgTypes,
+ unsigned &ArgNo) {
+ if (ArgTypes.size() == 1) {
+ EmitTypeGenerate(OS, ArgTypes.front(), ArgNo);
return;
}
-
- OS << "(int)" << ArgType->getValueAsString("TypeVal") << ", ";
- // If this is an integer type, check the width is correct.
- if (ArgType->isSubClassOf("LLVMIntegerType"))
- OS << ArgType->getValueAsInt("Width") << ", ";
-
- // If this is a packed type, check that the subtype and size are correct.
- else if (ArgType->isSubClassOf("LLVMPackedType")) {
- EmitTypeVerify(OS, ArgType->getValueAsDef("ElTy"));
- OS << ArgType->getValueAsInt("NumElts") << ", ";
+
+ 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(std::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!");
+ 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) {
+ // 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(VT).isVector()) {
+ MVT VVT = VT;
+ OS << "VectorType::get(";
+ EmitTypeForValueType(OS, VVT.getVectorElementType().getSimpleVT());
+ OS << ", " << VVT.getVectorNumElements() << ")";
+ } else if (VT == MVT::iPTR) {
+ 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 << " < numTys) ? Tys[" << ArgNo
+ << "] : PointerType::getUnqual(";
+ EmitTypeGenerate(OS, ArgType->getValueAsDef("ElTy"), ArgNo);
+ OS << ")";
+ ++ArgNo;
+ } 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);
}
}
/// RecordListComparator - Provide a determinstic 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;
+ const std::vector<Record*> *LHSVec = &LHS.first;
+ const std::vector<Record*> *RHSVec = &RHS.first;
+ unsigned RHSSize = RHSVec->size();
+ unsigned LHSSize = LHSVec->size();
+
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();
+ if (i == RHSSize) return false; // RHS is shorter than LHS.
+ if ((*LHSVec)[i] != (*RHSVec)[i])
+ return (*LHSVec)[i]->getName() < (*RHSVec)[i]->getName();
+ } while (++i != LHSSize);
+
+ 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;
}
};
}
// 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(IF, ";
- for (unsigned j = 0; j != ArgTypes.size(); ++j)
- EmitTypeVerify(OS, ArgTypes[j]);
- OS << "-1);\n";
+ const RecPair &ArgTypes = I->first;
+ const std::vector<Record*> &RetTys = ArgTypes.first;
+ const std::vector<Record*> &ParamTys = ArgTypes.second;
+
+ 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 < j && "Invalid matching 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 (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 + RetTys.size() && "Invalid matching 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 (VT == MVT::isVoid && j != 0 && j != je - 1)
+ throw "Var arg type not last argument";
+ }
+ }
+
+ 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;
- 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;
+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<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[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 " << IntrinsicStr << Ints[I->second[i]].EnumName
+ << ":\t\t// " << Ints[I->second[i]].Name << "\n";
+
+ 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(ParamTys[N - 1]->getValueAsDef("VT")) == MVT::isVoid) {
+ OS << " IsVarArg = true;\n";
+ --N;
+ }
+
+ unsigned ArgNo = 0;
+ OS << " ResultTy = ";
+ EmitTypeGenerate(OS, RetTys, ArgNo);
+ OS << ";\n";
+
+ for (unsigned j = 0; j != N; ++j) {
+ OS << " ArgTys.push_back(";
+ EmitTypeGenerate(OS, ParamTys[j], ArgNo);
+ OS << ");\n";
}
+
+ OS << " break;\n";
}
+
+ OS << " }\n";
OS << "#endif\n\n";
}
+/// 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";
+EmitAttributes(const std::vector<CodeGenIntrinsic> &Ints, std::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) {";
+ else
+ OS << "AttrListPtr Intrinsic::getAttributes(ID id) {";
+ OS << " // No intrinsic can throw exceptions.\n";
+ OS << " Attributes Attr = Attribute::NoUnwind;\n";
+ OS << " switch (id) {\n";
OS << " default: break;\n";
+ unsigned MaxArgAttrs = 0;
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ MaxArgAttrs =
+ std::max(MaxArgAttrs, unsigned(Ints[i].ArgumentAttributes.size()));
switch (Ints[i].ModRef) {
default: break;
case CodeGenIntrinsic::NoMem:
- OS << " case Intrinsic::" << Ints[i].EnumName << ":\n";
+ OS << " case " << TargetPrefix << "Intrinsic::" << Ints[i].EnumName
+ << ":\n";
break;
}
}
- OS << " return true; // These intrinsics have no side effects.\n";
- OS << " }\n";
- OS << "#endif\n\n";
-}
-
-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";
+ OS << " Attr |= Attribute::ReadNone; // These do not access memory.\n";
+ OS << " break;\n";
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
switch (Ints[i].ModRef) {
default: break;
- case CodeGenIntrinsic::NoMem:
case CodeGenIntrinsic::ReadArgMem:
case CodeGenIntrinsic::ReadMem:
- OS << " case Intrinsic::" << Ints[i].EnumName << ":\n";
+ OS << " case " << TargetPrefix << "Intrinsic::" << Ints[i].EnumName
+ << ":\n";
break;
}
}
- OS << " return true; // These intrinsics have no side effects.\n";
+ OS << " Attr |= Attribute::ReadOnly; // These do not write memory.\n";
+ OS << " break;\n";
OS << " }\n";
- OS << "#endif\n\n";
+ OS << " AttributeWithIndex AWI[" << MaxArgAttrs+1 << "];\n";
+ OS << " unsigned NumAttrs = 0;\n";
+ OS << " switch (id) {\n";
+ OS << " default: break;\n";
+
+ // Add argument attributes for any intrinsics that have them.
+ for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+ if (Ints[i].ArgumentAttributes.empty()) continue;
+
+ OS << " case " << TargetPrefix << "Intrinsic::" << Ints[i].EnumName
+ << ":\n";
+
+ std::vector<std::pair<unsigned, CodeGenIntrinsic::ArgAttribute> > ArgAttrs =
+ Ints[i].ArgumentAttributes;
+ // Sort by argument index.
+ std::sort(ArgAttrs.begin(), ArgAttrs.end());
+
+ unsigned NumArgsWithAttrs = 0;
+
+ while (!ArgAttrs.empty()) {
+ unsigned ArgNo = ArgAttrs[0].first;
+
+ OS << " AWI[" << NumArgsWithAttrs++ << "] = AttributeWithIndex::get("
+ << ArgNo+1 << ", 0";
+
+ while (!ArgAttrs.empty() && ArgAttrs[0].first == ArgNo) {
+ switch (ArgAttrs[0].second) {
+ default: assert(0 && "Unknown arg attribute");
+ case CodeGenIntrinsic::NoCapture:
+ OS << "|Attribute::NoCapture";
+ break;
+ }
+ ArgAttrs.erase(ArgAttrs.begin());
+ }
+ OS << ");\n";
+ }
+
+ OS << " NumAttrs = " << NumArgsWithAttrs << ";\n";
+ OS << " break;\n";
+ }
+
+ OS << " }\n";
+ OS << " AWI[NumAttrs] = AttributeWithIndex::get(~0, Attr);\n";
+ OS << " return AttrListPtr::get(AWI, NumAttrs+1);\n";
+ OS << "}\n";
+ OS << "#endif // GET_INTRINSIC_ATTRIBUTES\n\n";
}
void IntrinsicEmitter::
OS << "#endif\n\n";
}
+/// EmitBuiltinComparisons - Emit comparisons to determine whether the specified
+/// sorted range of builtin names is equal to the current builtin. This breaks
+/// it down into a simple tree.
+///
+/// At this point, we know that all the builtins in the range have the same name
+/// for the first 'CharStart' characters. Only the end of the name needs to be
+/// discriminated.
+typedef std::map<std::string, std::string>::const_iterator StrMapIterator;
+static void EmitBuiltinComparisons(StrMapIterator Start, StrMapIterator End,
+ unsigned CharStart, unsigned Indent,
+ std::string TargetPrefix, std::ostream &OS) {
+ if (Start == End) return; // empty range.
+
+ // Determine what, if anything, is the same about all these strings.
+ std::string CommonString = Start->first;
+ unsigned NumInRange = 0;
+ for (StrMapIterator I = Start; I != End; ++I, ++NumInRange) {
+ // Find the first character that doesn't match.
+ const std::string &ThisStr = I->first;
+ unsigned NonMatchChar = CharStart;
+ while (NonMatchChar < CommonString.size() &&
+ NonMatchChar < ThisStr.size() &&
+ CommonString[NonMatchChar] == ThisStr[NonMatchChar])
+ ++NonMatchChar;
+ // Truncate off pieces that don't match.
+ CommonString.resize(NonMatchChar);
+ }
+
+ // Just compare the rest of the string.
+ if (NumInRange == 1) {
+ if (CharStart != CommonString.size()) {
+ OS << std::string(Indent*2, ' ') << "if (!memcmp(BuiltinName";
+ if (CharStart) OS << "+" << CharStart;
+ OS << ", \"" << (CommonString.c_str()+CharStart) << "\", ";
+ OS << CommonString.size() - CharStart << "))\n";
+ ++Indent;
+ }
+ OS << std::string(Indent*2, ' ') << "IntrinsicID = " << TargetPrefix
+ << "Intrinsic::";
+ OS << Start->second << ";\n";
+ return;
+ }
+
+ // At this point, we potentially have a common prefix for these builtins, emit
+ // a check for this common prefix.
+ if (CommonString.size() != CharStart) {
+ OS << std::string(Indent*2, ' ') << "if (!memcmp(BuiltinName";
+ if (CharStart) OS << "+" << CharStart;
+ OS << ", \"" << (CommonString.c_str()+CharStart) << "\", ";
+ OS << CommonString.size()-CharStart << ")) {\n";
+
+ EmitBuiltinComparisons(Start, End, CommonString.size(), Indent+1,
+ TargetPrefix, OS);
+ OS << std::string(Indent*2, ' ') << "}\n";
+ return;
+ }
+
+ // Output a switch on the character that differs across the set.
+ OS << std::string(Indent*2, ' ') << "switch (BuiltinName[" << CharStart
+ << "]) {";
+ if (CharStart)
+ OS << " // \"" << std::string(Start->first.begin(),
+ Start->first.begin()+CharStart) << "\"";
+ OS << "\n";
+
+ for (StrMapIterator I = Start; I != End; ) {
+ char ThisChar = I->first[CharStart];
+ OS << std::string(Indent*2, ' ') << "case '" << ThisChar << "':\n";
+ // Figure out the range that has this common character.
+ StrMapIterator NextChar = I;
+ for (++NextChar; NextChar != End && NextChar->first[CharStart] == ThisChar;
+ ++NextChar)
+ /*empty*/;
+ EmitBuiltinComparisons(I, NextChar, CharStart+1, Indent+1, TargetPrefix,OS);
+ OS << std::string(Indent*2, ' ') << " break;\n";
+ I = NextChar;
+ }
+ OS << std::string(Indent*2, ' ') << "}\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,
+ std::ostream &OS) {
+ // Rearrange the builtins by length.
+ std::vector<std::map<std::string, std::string> > BuiltinsByLen;
+ BuiltinsByLen.reserve(100);
+
+ for (StrMapIterator I = BIM.begin(), E = BIM.end(); I != E; ++I) {
+ if (I->first.size() >= BuiltinsByLen.size())
+ BuiltinsByLen.resize(I->first.size()+1);
+ BuiltinsByLen[I->first.size()].insert(*I);
+ }
+
+ // Now that we have all the builtins by their length, emit a switch stmt.
+ OS << " switch (strlen(BuiltinName)) {\n";
+ OS << " default: break;\n";
+ for (unsigned i = 0, e = BuiltinsByLen.size(); i != e; ++i) {
+ if (BuiltinsByLen[i].empty()) continue;
+ OS << " case " << i << ":\n";
+ EmitBuiltinComparisons(BuiltinsByLen[i].begin(), BuiltinsByLen[i].end(),
+ 0, 3, TargetPrefix, OS);
+ OS << " break;\n";
+ }
+ OS << " }\n";
+}
+
+
void IntrinsicEmitter::
EmitIntrinsicToGCCBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
std::ostream &OS) {
- typedef std::map<std::pair<std::string, std::string>, std::string> BIMTy;
+ 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 "
+ << "*TargetPrefix, const char *BuiltinName) {\n";
+ OS << " " << TargetPrefix << "Intrinsic::ID IntrinsicID = ";
+ } else {
+ OS << "Intrinsic::ID Intrinsic::getIntrinsicForGCCBuiltin(const char "
+ << "*TargetPrefix, const char *BuiltinName) {\n";
+ OS << " Intrinsic::ID IntrinsicID = ";
+ }
+
+ if (TargetOnly)
+ OS << "(" << TargetPrefix<< "Intrinsic::ID)";
+
+ OS << "Intrinsic::not_intrinsic;\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 (!strcmp(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 IntrinsicID;\n";
+ OS << "}\n";
OS << "#endif\n\n";
}
projects / oota-llvm.git / blobdiff