mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
6994040a95
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8
684 lines
25 KiB
C++
684 lines
25 KiB
C++
//===- CodeGenTarget.cpp - CodeGen Target Class Wrapper ---------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class wrap target description classes used by the various code
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// generation TableGen backends. This makes it easier to access the data and
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// provides a single place that needs to check it for validity. All of these
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// classes throw exceptions on error conditions.
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//
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//===----------------------------------------------------------------------===//
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#include "CodeGenTarget.h"
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#include "CodeGenIntrinsics.h"
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#include "Record.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Streams.h"
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#include <set>
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#include <algorithm>
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using namespace llvm;
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static cl::opt<unsigned>
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AsmWriterNum("asmwriternum", cl::init(0),
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cl::desc("Make -gen-asm-writer emit assembly writer #N"));
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/// getValueType - Return the MCV::ValueType that the specified TableGen record
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/// corresponds to.
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MVT::ValueType llvm::getValueType(Record *Rec) {
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return (MVT::ValueType)Rec->getValueAsInt("Value");
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}
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std::string llvm::getName(MVT::ValueType T) {
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switch (T) {
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case MVT::Other: return "UNKNOWN";
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case MVT::i1: return "MVT::i1";
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case MVT::i8: return "MVT::i8";
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case MVT::i16: return "MVT::i16";
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case MVT::i32: return "MVT::i32";
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case MVT::i64: return "MVT::i64";
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case MVT::i128: return "MVT::i128";
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case MVT::iAny: return "MVT::iAny";
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case MVT::f32: return "MVT::f32";
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case MVT::f64: return "MVT::f64";
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case MVT::f80: return "MVT::f80";
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case MVT::f128: return "MVT::f128";
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case MVT::Flag: return "MVT::Flag";
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case MVT::isVoid:return "MVT::void";
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case MVT::v8i8: return "MVT::v8i8";
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case MVT::v4i16: return "MVT::v4i16";
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case MVT::v2i32: return "MVT::v2i32";
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case MVT::v1i64: return "MVT::v1i64";
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case MVT::v16i8: return "MVT::v16i8";
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case MVT::v8i16: return "MVT::v8i16";
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case MVT::v4i32: return "MVT::v4i32";
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case MVT::v2i64: return "MVT::v2i64";
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case MVT::v2f32: return "MVT::v2f32";
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case MVT::v4f32: return "MVT::v4f32";
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case MVT::v2f64: return "MVT::v2f64";
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case MVT::v3i32: return "MVT::v3i32";
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case MVT::v3f32: return "MVT::v3f32";
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case MVT::iPTR: return "TLI.getPointerTy()";
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default: assert(0 && "ILLEGAL VALUE TYPE!"); return "";
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}
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}
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std::string llvm::getEnumName(MVT::ValueType T) {
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switch (T) {
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case MVT::Other: return "MVT::Other";
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case MVT::i1: return "MVT::i1";
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case MVT::i8: return "MVT::i8";
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case MVT::i16: return "MVT::i16";
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case MVT::i32: return "MVT::i32";
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case MVT::i64: return "MVT::i64";
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case MVT::i128: return "MVT::i128";
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case MVT::iAny: return "MVT::iAny";
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case MVT::f32: return "MVT::f32";
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case MVT::f64: return "MVT::f64";
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case MVT::f80: return "MVT::f80";
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case MVT::f128: return "MVT::f128";
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case MVT::Flag: return "MVT::Flag";
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case MVT::isVoid:return "MVT::isVoid";
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case MVT::v8i8: return "MVT::v8i8";
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case MVT::v4i16: return "MVT::v4i16";
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case MVT::v2i32: return "MVT::v2i32";
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case MVT::v1i64: return "MVT::v1i64";
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case MVT::v16i8: return "MVT::v16i8";
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case MVT::v8i16: return "MVT::v8i16";
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case MVT::v4i32: return "MVT::v4i32";
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case MVT::v2i64: return "MVT::v2i64";
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case MVT::v2f32: return "MVT::v2f32";
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case MVT::v4f32: return "MVT::v4f32";
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case MVT::v2f64: return "MVT::v2f64";
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case MVT::v3i32: return "MVT::v3i32";
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case MVT::v3f32: return "MVT::v3f32";
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case MVT::iPTR: return "MVT::iPTR";
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default: assert(0 && "ILLEGAL VALUE TYPE!"); return "";
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}
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}
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/// getTarget - Return the current instance of the Target class.
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///
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CodeGenTarget::CodeGenTarget() {
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std::vector<Record*> Targets = Records.getAllDerivedDefinitions("Target");
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if (Targets.size() == 0)
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throw std::string("ERROR: No 'Target' subclasses defined!");
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if (Targets.size() != 1)
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throw std::string("ERROR: Multiple subclasses of Target defined!");
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TargetRec = Targets[0];
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}
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const std::string &CodeGenTarget::getName() const {
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return TargetRec->getName();
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}
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Record *CodeGenTarget::getInstructionSet() const {
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return TargetRec->getValueAsDef("InstructionSet");
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}
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/// getAsmWriter - Return the AssemblyWriter definition for this target.
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///
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Record *CodeGenTarget::getAsmWriter() const {
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std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyWriters");
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if (AsmWriterNum >= LI.size())
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throw "Target does not have an AsmWriter #" + utostr(AsmWriterNum) + "!";
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return LI[AsmWriterNum];
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}
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void CodeGenTarget::ReadRegisters() const {
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std::vector<Record*> Regs = Records.getAllDerivedDefinitions("Register");
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if (Regs.empty())
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throw std::string("No 'Register' subclasses defined!");
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Registers.reserve(Regs.size());
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Registers.assign(Regs.begin(), Regs.end());
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}
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CodeGenRegister::CodeGenRegister(Record *R) : TheDef(R) {
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DeclaredSpillSize = R->getValueAsInt("SpillSize");
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DeclaredSpillAlignment = R->getValueAsInt("SpillAlignment");
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}
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const std::string &CodeGenRegister::getName() const {
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return TheDef->getName();
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}
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void CodeGenTarget::ReadRegisterClasses() const {
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std::vector<Record*> RegClasses =
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Records.getAllDerivedDefinitions("RegisterClass");
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if (RegClasses.empty())
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throw std::string("No 'RegisterClass' subclasses defined!");
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RegisterClasses.reserve(RegClasses.size());
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RegisterClasses.assign(RegClasses.begin(), RegClasses.end());
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}
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std::vector<unsigned char> CodeGenTarget::getRegisterVTs(Record *R) const {
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std::vector<unsigned char> Result;
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const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
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for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
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const CodeGenRegisterClass &RC = RegisterClasses[i];
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for (unsigned ei = 0, ee = RC.Elements.size(); ei != ee; ++ei) {
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if (R == RC.Elements[ei]) {
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const std::vector<MVT::ValueType> &InVTs = RC.getValueTypes();
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for (unsigned i = 0, e = InVTs.size(); i != e; ++i)
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Result.push_back(InVTs[i]);
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}
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}
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}
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return Result;
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}
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CodeGenRegisterClass::CodeGenRegisterClass(Record *R) : TheDef(R) {
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// Rename anonymous register classes.
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if (R->getName().size() > 9 && R->getName()[9] == '.') {
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static unsigned AnonCounter = 0;
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R->setName("AnonRegClass_"+utostr(AnonCounter++));
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}
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std::vector<Record*> TypeList = R->getValueAsListOfDefs("RegTypes");
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for (unsigned i = 0, e = TypeList.size(); i != e; ++i) {
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Record *Type = TypeList[i];
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if (!Type->isSubClassOf("ValueType"))
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throw "RegTypes list member '" + Type->getName() +
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"' does not derive from the ValueType class!";
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VTs.push_back(getValueType(Type));
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}
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assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!");
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std::vector<Record*> RegList = R->getValueAsListOfDefs("MemberList");
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for (unsigned i = 0, e = RegList.size(); i != e; ++i) {
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Record *Reg = RegList[i];
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if (!Reg->isSubClassOf("Register"))
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throw "Register Class member '" + Reg->getName() +
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"' does not derive from the Register class!";
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Elements.push_back(Reg);
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}
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std::vector<Record*> SubRegClassList =
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R->getValueAsListOfDefs("SubRegClassList");
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for (unsigned i = 0, e = SubRegClassList.size(); i != e; ++i) {
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Record *SubRegClass = SubRegClassList[i];
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if (!SubRegClass->isSubClassOf("RegisterClass"))
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throw "Register Class member '" + SubRegClass->getName() +
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"' does not derive from the RegisterClass class!";
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SubRegClasses.push_back(SubRegClass);
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}
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// Allow targets to override the size in bits of the RegisterClass.
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unsigned Size = R->getValueAsInt("Size");
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Namespace = R->getValueAsString("Namespace");
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SpillSize = Size ? Size : MVT::getSizeInBits(VTs[0]);
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SpillAlignment = R->getValueAsInt("Alignment");
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MethodBodies = R->getValueAsCode("MethodBodies");
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MethodProtos = R->getValueAsCode("MethodProtos");
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}
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const std::string &CodeGenRegisterClass::getName() const {
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return TheDef->getName();
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}
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void CodeGenTarget::ReadLegalValueTypes() const {
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const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
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for (unsigned i = 0, e = RCs.size(); i != e; ++i)
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for (unsigned ri = 0, re = RCs[i].VTs.size(); ri != re; ++ri)
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LegalValueTypes.push_back(RCs[i].VTs[ri]);
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// Remove duplicates.
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std::sort(LegalValueTypes.begin(), LegalValueTypes.end());
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LegalValueTypes.erase(std::unique(LegalValueTypes.begin(),
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LegalValueTypes.end()),
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LegalValueTypes.end());
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}
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void CodeGenTarget::ReadInstructions() const {
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std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
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if (Insts.size() <= 2)
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throw std::string("No 'Instruction' subclasses defined!");
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// Parse the instructions defined in the .td file.
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std::string InstFormatName =
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getAsmWriter()->getValueAsString("InstFormatName");
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for (unsigned i = 0, e = Insts.size(); i != e; ++i) {
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std::string AsmStr = Insts[i]->getValueAsString(InstFormatName);
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Instructions.insert(std::make_pair(Insts[i]->getName(),
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CodeGenInstruction(Insts[i], AsmStr)));
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}
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}
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/// getInstructionsByEnumValue - Return all of the instructions defined by the
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/// target, ordered by their enum value.
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void CodeGenTarget::
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getInstructionsByEnumValue(std::vector<const CodeGenInstruction*>
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&NumberedInstructions) {
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std::map<std::string, CodeGenInstruction>::const_iterator I;
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I = getInstructions().find("PHI");
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if (I == Instructions.end()) throw "Could not find 'PHI' instruction!";
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const CodeGenInstruction *PHI = &I->second;
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I = getInstructions().find("INLINEASM");
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if (I == Instructions.end()) throw "Could not find 'INLINEASM' instruction!";
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const CodeGenInstruction *INLINEASM = &I->second;
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I = getInstructions().find("LABEL");
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if (I == Instructions.end()) throw "Could not find 'LABEL' instruction!";
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const CodeGenInstruction *LABEL = &I->second;
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I = getInstructions().find("EXTRACT_SUBREG");
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if (I == Instructions.end())
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throw "Could not find 'EXTRACT_SUBREG' instruction!";
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const CodeGenInstruction *EXTRACT_SUBREG = &I->second;
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I = getInstructions().find("INSERT_SUBREG");
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if (I == Instructions.end())
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throw "Could not find 'INSERT_SUBREG' instruction!";
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const CodeGenInstruction *INSERT_SUBREG = &I->second;
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// Print out the rest of the instructions now.
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NumberedInstructions.push_back(PHI);
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NumberedInstructions.push_back(INLINEASM);
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NumberedInstructions.push_back(LABEL);
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NumberedInstructions.push_back(EXTRACT_SUBREG);
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NumberedInstructions.push_back(INSERT_SUBREG);
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for (inst_iterator II = inst_begin(), E = inst_end(); II != E; ++II)
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if (&II->second != PHI &&
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&II->second != INLINEASM &&
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&II->second != LABEL &&
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&II->second != EXTRACT_SUBREG &&
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&II->second != INSERT_SUBREG)
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NumberedInstructions.push_back(&II->second);
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}
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/// isLittleEndianEncoding - Return whether this target encodes its instruction
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/// in little-endian format, i.e. bits laid out in the order [0..n]
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///
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bool CodeGenTarget::isLittleEndianEncoding() const {
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return getInstructionSet()->getValueAsBit("isLittleEndianEncoding");
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}
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static void ParseConstraint(const std::string &CStr, CodeGenInstruction *I) {
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// FIXME: Only supports TIED_TO for now.
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std::string::size_type pos = CStr.find_first_of('=');
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assert(pos != std::string::npos && "Unrecognized constraint");
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std::string Name = CStr.substr(0, pos);
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// TIED_TO: $src1 = $dst
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std::string::size_type wpos = Name.find_first_of(" \t");
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if (wpos == std::string::npos)
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throw "Illegal format for tied-to constraint: '" + CStr + "'";
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std::string DestOpName = Name.substr(0, wpos);
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std::pair<unsigned,unsigned> DestOp = I->ParseOperandName(DestOpName, false);
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Name = CStr.substr(pos+1);
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wpos = Name.find_first_not_of(" \t");
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if (wpos == std::string::npos)
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throw "Illegal format for tied-to constraint: '" + CStr + "'";
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std::pair<unsigned,unsigned> SrcOp =
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I->ParseOperandName(Name.substr(wpos), false);
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if (SrcOp > DestOp)
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throw "Illegal tied-to operand constraint '" + CStr + "'";
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unsigned FlatOpNo = I->getFlattenedOperandNumber(SrcOp);
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// Build the string for the operand.
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std::string OpConstraint =
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"((" + utostr(FlatOpNo) + " << 16) | (1 << TOI::TIED_TO))";
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if (!I->OperandList[DestOp.first].Constraints[DestOp.second].empty())
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throw "Operand '" + DestOpName + "' cannot have multiple constraints!";
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I->OperandList[DestOp.first].Constraints[DestOp.second] = OpConstraint;
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}
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static void ParseConstraints(const std::string &CStr, CodeGenInstruction *I) {
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// Make sure the constraints list for each operand is large enough to hold
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// constraint info, even if none is present.
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for (unsigned i = 0, e = I->OperandList.size(); i != e; ++i)
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I->OperandList[i].Constraints.resize(I->OperandList[i].MINumOperands);
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if (CStr.empty()) return;
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const std::string delims(",");
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std::string::size_type bidx, eidx;
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bidx = CStr.find_first_not_of(delims);
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while (bidx != std::string::npos) {
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eidx = CStr.find_first_of(delims, bidx);
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if (eidx == std::string::npos)
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eidx = CStr.length();
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ParseConstraint(CStr.substr(bidx, eidx), I);
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bidx = CStr.find_first_not_of(delims, eidx);
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}
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}
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CodeGenInstruction::CodeGenInstruction(Record *R, const std::string &AsmStr)
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: TheDef(R), AsmString(AsmStr) {
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Name = R->getValueAsString("Name");
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Namespace = R->getValueAsString("Namespace");
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isReturn = R->getValueAsBit("isReturn");
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isBranch = R->getValueAsBit("isBranch");
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isBarrier = R->getValueAsBit("isBarrier");
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isCall = R->getValueAsBit("isCall");
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isLoad = R->getValueAsBit("isLoad");
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isStore = R->getValueAsBit("isStore");
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bool isTwoAddress = R->getValueAsBit("isTwoAddress");
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isPredicable = R->getValueAsBit("isPredicable");
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isConvertibleToThreeAddress = R->getValueAsBit("isConvertibleToThreeAddress");
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isCommutable = R->getValueAsBit("isCommutable");
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isTerminator = R->getValueAsBit("isTerminator");
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isReMaterializable = R->getValueAsBit("isReMaterializable");
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hasDelaySlot = R->getValueAsBit("hasDelaySlot");
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usesCustomDAGSchedInserter = R->getValueAsBit("usesCustomDAGSchedInserter");
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hasCtrlDep = R->getValueAsBit("hasCtrlDep");
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isNotDuplicable = R->getValueAsBit("isNotDuplicable");
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hasOptionalDef = false;
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hasVariableNumberOfOperands = false;
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DagInit *DI;
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try {
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DI = R->getValueAsDag("OutOperandList");
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} catch (...) {
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// Error getting operand list, just ignore it (sparcv9).
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AsmString.clear();
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OperandList.clear();
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return;
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}
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NumDefs = DI->getNumArgs();
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DagInit *IDI;
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try {
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IDI = R->getValueAsDag("InOperandList");
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} catch (...) {
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// Error getting operand list, just ignore it (sparcv9).
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AsmString.clear();
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OperandList.clear();
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return;
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}
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DI = (DagInit*)(new BinOpInit(BinOpInit::CONCAT, DI, IDI))->Fold();
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unsigned MIOperandNo = 0;
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std::set<std::string> OperandNames;
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for (unsigned i = 0, e = DI->getNumArgs(); i != e; ++i) {
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DefInit *Arg = dynamic_cast<DefInit*>(DI->getArg(i));
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if (!Arg)
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throw "Illegal operand for the '" + R->getName() + "' instruction!";
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Record *Rec = Arg->getDef();
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std::string PrintMethod = "printOperand";
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unsigned NumOps = 1;
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DagInit *MIOpInfo = 0;
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if (Rec->isSubClassOf("Operand")) {
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PrintMethod = Rec->getValueAsString("PrintMethod");
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MIOpInfo = Rec->getValueAsDag("MIOperandInfo");
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// Verify that MIOpInfo has an 'ops' root value.
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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
|
|
//
|
|
ComplexPattern::ComplexPattern(Record *R) {
|
|
Ty = ::getValueType(R->getValueAsDef("Ty"));
|
|
NumOperands = R->getValueAsInt("NumOperands");
|
|
SelectFunc = R->getValueAsString("SelectFunc");
|
|
RootNodes = R->getValueAsListOfDefs("RootNodes");
|
|
|
|
// Parse the properties.
|
|
Properties = 0;
|
|
std::vector<Record*> PropList = R->getValueAsListOfDefs("Properties");
|
|
for (unsigned i = 0, e = PropList.size(); i != e; ++i)
|
|
if (PropList[i]->getName() == "SDNPHasChain") {
|
|
Properties |= 1 << SDNPHasChain;
|
|
} else if (PropList[i]->getName() == "SDNPOptInFlag") {
|
|
Properties |= 1 << SDNPOptInFlag;
|
|
} else {
|
|
cerr << "Unsupported SD Node property '" << PropList[i]->getName()
|
|
<< "' on ComplexPattern '" << R->getName() << "'!\n";
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// CodeGenIntrinsic Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
std::vector<CodeGenIntrinsic> llvm::LoadIntrinsics(const RecordKeeper &RC) {
|
|
std::vector<Record*> I = RC.getAllDerivedDefinitions("Intrinsic");
|
|
|
|
std::vector<CodeGenIntrinsic> Result;
|
|
|
|
// If we are in the context of a target .td file, get the target info so that
|
|
// we can decode the current intptr_t.
|
|
CodeGenTarget *CGT = 0;
|
|
if (Records.getClass("Target") &&
|
|
Records.getAllDerivedDefinitions("Target").size() == 1)
|
|
CGT = new CodeGenTarget();
|
|
|
|
for (unsigned i = 0, e = I.size(); i != e; ++i)
|
|
Result.push_back(CodeGenIntrinsic(I[i], CGT));
|
|
delete CGT;
|
|
return Result;
|
|
}
|
|
|
|
CodeGenIntrinsic::CodeGenIntrinsic(Record *R, CodeGenTarget *CGT) {
|
|
TheDef = R;
|
|
std::string DefName = R->getName();
|
|
ModRef = WriteMem;
|
|
isOverloaded = false;
|
|
|
|
if (DefName.size() <= 4 ||
|
|
std::string(DefName.begin(), DefName.begin()+4) != "int_")
|
|
throw "Intrinsic '" + DefName + "' does not start with 'int_'!";
|
|
EnumName = std::string(DefName.begin()+4, DefName.end());
|
|
if (R->getValue("GCCBuiltinName")) // Ignore a missing GCCBuiltinName field.
|
|
GCCBuiltinName = R->getValueAsString("GCCBuiltinName");
|
|
TargetPrefix = R->getValueAsString("TargetPrefix");
|
|
Name = R->getValueAsString("LLVMName");
|
|
if (Name == "") {
|
|
// If an explicit name isn't specified, derive one from the DefName.
|
|
Name = "llvm.";
|
|
for (unsigned i = 0, e = EnumName.size(); i != e; ++i)
|
|
if (EnumName[i] == '_')
|
|
Name += '.';
|
|
else
|
|
Name += EnumName[i];
|
|
} else {
|
|
// Verify it starts with "llvm.".
|
|
if (Name.size() <= 5 ||
|
|
std::string(Name.begin(), Name.begin()+5) != "llvm.")
|
|
throw "Intrinsic '" + DefName + "'s name does not start with 'llvm.'!";
|
|
}
|
|
|
|
// If TargetPrefix is specified, make sure that Name starts with
|
|
// "llvm.<targetprefix>.".
|
|
if (!TargetPrefix.empty()) {
|
|
if (Name.size() < 6+TargetPrefix.size() ||
|
|
std::string(Name.begin()+5, Name.begin()+6+TargetPrefix.size())
|
|
!= (TargetPrefix+"."))
|
|
throw "Intrinsic '" + DefName + "' does not start with 'llvm." +
|
|
TargetPrefix + ".'!";
|
|
}
|
|
|
|
// Parse the list of argument types.
|
|
ListInit *TypeList = R->getValueAsListInit("Types");
|
|
for (unsigned i = 0, e = TypeList->getSize(); i != e; ++i) {
|
|
Record *TyEl = TypeList->getElementAsRecord(i);
|
|
assert(TyEl->isSubClassOf("LLVMType") && "Expected a type!");
|
|
MVT::ValueType VT = getValueType(TyEl->getValueAsDef("VT"));
|
|
isOverloaded |= VT == MVT::iAny;
|
|
ArgVTs.push_back(VT);
|
|
ArgTypeDefs.push_back(TyEl);
|
|
}
|
|
if (ArgVTs.size() == 0)
|
|
throw "Intrinsic '"+DefName+"' needs at least a type for the ret value!";
|
|
|
|
|
|
// Parse the intrinsic properties.
|
|
ListInit *PropList = R->getValueAsListInit("Properties");
|
|
for (unsigned i = 0, e = PropList->getSize(); i != e; ++i) {
|
|
Record *Property = PropList->getElementAsRecord(i);
|
|
assert(Property->isSubClassOf("IntrinsicProperty") &&
|
|
"Expected a property!");
|
|
|
|
if (Property->getName() == "IntrNoMem")
|
|
ModRef = NoMem;
|
|
else if (Property->getName() == "IntrReadArgMem")
|
|
ModRef = ReadArgMem;
|
|
else if (Property->getName() == "IntrReadMem")
|
|
ModRef = ReadMem;
|
|
else if (Property->getName() == "IntrWriteArgMem")
|
|
ModRef = WriteArgMem;
|
|
else if (Property->getName() == "IntrWriteMem")
|
|
ModRef = WriteMem;
|
|
else
|
|
assert(0 && "Unknown property!");
|
|
}
|
|
}
|