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builtin.cpp
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#include "builtin.h"
#include "expr.h"
#include "options.h"
#include <functional>
#include <llvm/IR/DataLayout.h>
extern llvm::Module* theModule;
namespace Builtin
{
static bool CastIntegerToReal(ExprAST*& arg)
{
if (!llvm::isa<Types::RealDecl>(arg->Type()))
{
// Implicit typecast.
if (!IsIntegral(arg->Type()))
{
return false;
}
arg = Recast(arg, Types::Get<Types::RealDecl>());
}
return true;
}
using ArgList = const std::vector<ExprAST*>;
using CreateBIFObject = std::function<FunctionBase*(const std::string&, ArgList&)>;
std::map<std::string, CreateBIFObject> BIFMap;
static llvm::Value* CallRuntimeFPFunc(llvm::IRBuilder<>& builder, const std::string& func, ArgList& args)
{
llvm::Value* a = args[0]->CodeGen();
llvm::Type* ty = args[0]->Type()->LlvmType();
llvm::FunctionCallee f = GetFunction(ty, { ty }, func);
return builder.CreateCall(f, a, "calltmp");
}
static llvm::Value* CallRuntimeCplxFunc(llvm::IRBuilder<>& builder, const std::string& func,
ArgList& args)
{
llvm::Value* res = CreateTempAlloca(Types::Get<Types::ComplexDecl>());
llvm::Value* a = args[0]->CodeGen();
llvm::Type* ty = args[0]->Type()->LlvmType();
llvm::Type* pty = llvm::PointerType::getUnqual(ty);
llvm::FunctionCallee f = GetFunction(Types::Get<Types::VoidDecl>()->LlvmType(), { pty, ty },
"__c" + func);
builder.CreateCall(f, { res, a });
return builder.CreateLoad(ty, res);
}
template<typename TY>
class FunctionType : public FunctionBase
{
public:
using FunctionBase::FunctionBase;
Types::TypeDecl* Type() const override { return Types::Get<TY>(); }
};
using FunctionInt = FunctionType<Types::IntegerDecl>;
using FunctionLongInt = FunctionType<Types::Int64Decl>;
using FunctionBool = FunctionType<Types::BoolDecl>;
using FunctionReal = FunctionType<Types::RealDecl>;
using FunctionVoid = FunctionType<Types::VoidDecl>;
using FunctionCplx = FunctionType<Types::ComplexDecl>;
class FunctionString : public FunctionBase
{
public:
using FunctionBase::FunctionBase;
Types::TypeDecl* Type() const override { return Types::Get<Types::StringDecl>(255); }
};
class FunctionSameAsArg : public FunctionBase
{
public:
using FunctionBase::FunctionBase;
Types::TypeDecl* Type() const override { return args[0]->Type(); }
ErrorType Semantics() override;
};
class FunctionSameAsArg2 : public FunctionBase
{
public:
using FunctionBase::FunctionBase;
Types::TypeDecl* Type() const override { return args[0]->Type(); }
ErrorType Semantics() override;
};
class FunctionAbs : public FunctionSameAsArg
{
public:
using FunctionSameAsArg::FunctionSameAsArg;
Types::TypeDecl* Type() const override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionSqr : public FunctionSameAsArg
{
public:
using FunctionSameAsArg::FunctionSameAsArg;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionOdd : public FunctionBool
{
public:
using FunctionBool::FunctionBool;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionRound : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionTrunc : public FunctionRound
{
public:
using FunctionRound::FunctionRound;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionIntConvert : public FunctionReal
{
public:
using FunctionReal::FunctionReal;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionRandom : public FunctionReal
{
public:
using FunctionReal::FunctionReal;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
Types::TypeDecl* Type() const override;
ErrorType Semantics() override;
};
class FunctionRandomize : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionChr : public FunctionBase
{
public:
using FunctionBase::FunctionBase;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
Types::TypeDecl* Type() const override { return Types::Get<Types::CharDecl>(); }
ErrorType Semantics() override;
};
class FunctionOrd : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionLength : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionPopcnt : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionSucc : public FunctionSameAsArg
{
public:
using FunctionSameAsArg::FunctionSameAsArg;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionPred : public FunctionSucc
{
public:
using FunctionSucc::FunctionSucc;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionFloat : public FunctionBase
{
public:
FunctionFloat(const std::string& fn, ArgList& a) : FunctionBase(fn, a), func(fn) {}
FunctionFloat(const std::string& fn, ArgList& a, const std::string& nn)
: FunctionBase(fn, a), func(nn)
{
}
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
Types::TypeDecl* Type() const override;
ErrorType Semantics() override;
protected:
std::string func;
};
class FunctionFloat2Arg : public FunctionFloat
{
public:
using FunctionFloat::FunctionFloat;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionFloatIntrinsic : public FunctionFloat
{
public:
using FunctionFloat::FunctionFloat;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionNew : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionDispose : public FunctionNew
{
public:
using FunctionNew::FunctionNew;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionHalt : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionInc : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionDec : public FunctionInc
{
public:
using FunctionInc::FunctionInc;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionPack : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionUnpack : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionVal : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionFile : public FunctionVoid
{
public:
FunctionFile(const std::string& fn, ArgList& a) : FunctionVoid(fn, a) {}
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionFileInfo : public FunctionFile
{
public:
using FunctionFile::FunctionFile;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionFileBool : public FunctionFile
{
public:
using FunctionFile::FunctionFile;
ErrorType Semantics() override;
Types::TypeDecl* Type() const override { return Types::Get<Types::BoolDecl>(); }
};
class FunctionFileLong : public FunctionFile
{
public:
using FunctionFile::FunctionFile;
Types::TypeDecl* Type() const override { return Types::Get<Types::Int64Decl>(); }
};
class FunctionAssign : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionPanic : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionClock : public FunctionLongInt
{
public:
using FunctionLongInt::FunctionLongInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionCycles : public FunctionClock
{
public:
using FunctionClock::FunctionClock;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionParamcount : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionParamstr : public FunctionString
{
public:
using FunctionString::FunctionString;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionCopy : public FunctionString
{
public:
using FunctionString::FunctionString;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionTrim : public FunctionString
{
public:
using FunctionString::FunctionString;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionIndex : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
ErrorType Semantics() override;
};
class FunctionMin : public FunctionSameAsArg2
{
public:
using FunctionSameAsArg2::FunctionSameAsArg2;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionMax : public FunctionSameAsArg2
{
public:
using FunctionSameAsArg2::FunctionSameAsArg2;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionSign : public FunctionInt
{
public:
using FunctionInt::FunctionInt;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionGetTimeStamp : public FunctionVoid
{
public:
using FunctionVoid::FunctionVoid;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionTime : public FunctionBase
{
public:
FunctionTime(const std::string& fn, ArgList& a);
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
Types::TypeDecl* Type() const override { return arrayType; }
private:
Types::TypeDecl* arrayType;
};
class FunctionDate : public FunctionBase
{
public:
FunctionDate(const std::string& fn, ArgList& a);
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
Types::TypeDecl* Type() const override { return arrayType; }
private:
Types::TypeDecl* arrayType;
};
class FunctionBinding : public FunctionFile
{
public:
using FunctionFile::FunctionFile;
Types::TypeDecl* Type() const override { return Types::GetBindingType(); }
};
class FunctionBind : public FunctionFile
{
public:
using FunctionFile::FunctionFile;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionStrCompOp : public FunctionBool
{
public:
FunctionStrCompOp(const std::string& fn, ArgList& a, Token::TokenType o) : FunctionBool(fn, a), op(o)
{
}
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
private:
Token::TokenType op;
};
class FunctionSeek : public FunctionFile
{
public:
using FunctionFile::FunctionFile;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionComplex : public FunctionCplx
{
public:
using FunctionCplx::FunctionCplx;
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionPolar : public FunctionComplex
{
public:
using FunctionComplex::FunctionComplex;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
class FunctionReIm : public FunctionReal
{
public:
FunctionReIm(const std::string& fn, ArgList& a, int idx) : FunctionReal(fn, a), index(idx) {}
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
private:
int index;
};
class FunctionCmplxToReal : public FunctionReal
{
public:
FunctionCmplxToReal(const std::string& fn, ArgList& a) : FunctionReal(fn, a) {}
ErrorType Semantics() override;
llvm::Value* CodeGen(llvm::IRBuilder<>& builder) override;
};
void FunctionBase::accept(ASTVisitor& v)
{
for (auto a : args)
{
a->accept(v);
}
}
ErrorType FunctionSameAsArg::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!Types::IsNumeric(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
ErrorType FunctionSameAsArg2::Semantics()
{
if (args.size() != 2)
{
return ErrorType::WrongArgCount;
}
if (!Types::IsNumeric(args[0]->Type()) || !Types::IsNumeric(args[1]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
/* Note that abs returnes "real" for complex, otherwise int or real depending on input type */
Types::TypeDecl* FunctionAbs::Type() const
{
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()))
{
return Types::Get<Types::RealDecl>();
}
return args[0]->Type();
}
llvm::Value* FunctionAbs::CodeGen(llvm::IRBuilder<>& builder)
{
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()))
{
llvm::Constant* zero = MakeIntegerConstant(0);
llvm::Constant* one = MakeIntegerConstant(1);
auto v = llvm::dyn_cast<AddressableAST>(args[0]);
llvm::Value* a = v->Address();
llvm::Type* ty = Types::Get<Types::RealDecl>()->LlvmType();
llvm::Value* re = builder.CreateLoad(ty, builder.CreateGEP(ty, a, zero, "re"));
llvm::Value* im = builder.CreateLoad(ty, builder.CreateGEP(ty, a, one, "im"));
llvm::Value* rexre = builder.CreateFMul(re, re, "rexre");
llvm::Value* imxim = builder.CreateFMul(im, im, "imxim");
llvm::Value* sum = builder.CreateFAdd(rexre, imxim, "addi");
llvm::FunctionCallee f = GetFunction(ty, { ty }, "llvm.sqrt.f64");
return builder.CreateCall(f, sum, "sqrt");
}
llvm::Value* a = args[0]->CodeGen();
if (IsUnsigned(args[0]->Type()))
{
return a;
}
if (IsIntegral(args[0]->Type()))
{
llvm::Value* neg = builder.CreateNeg(a, "neg");
llvm::Value* cmp = builder.CreateICmpSGE(a, MakeIntegerConstant(0), "abscond");
llvm::Value* res = builder.CreateSelect(cmp, a, neg, "abs");
return res;
}
return CallRuntimeFPFunc(builder, "llvm.fabs.f64", args);
}
llvm::Value* FunctionOdd::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* v = args[0]->CodeGen();
v = builder.CreateAnd(v, MakeIntegerConstant(1));
return builder.CreateTrunc(v, Types::Get<Types::BoolDecl>()->LlvmType(), "odd");
}
ErrorType FunctionOdd::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!IsIntegral(args[0]->Type()) || llvm::isa<Types::CharDecl>(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionSqr::CodeGen(llvm::IRBuilder<>& builder)
{
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()))
{
llvm::Constant* zero = MakeIntegerConstant(0);
llvm::Constant* one = MakeIntegerConstant(1);
auto v = llvm::dyn_cast<AddressableAST>(args[0]);
llvm::Value* a = v->Address();
llvm::Type* ty = Types::Get<Types::RealDecl>()->LlvmType();
llvm::Type* cplxTy = Types::Get<Types::ComplexDecl>()->LlvmType();
llvm::Value* res = CreateTempAlloca(Types::Get<Types::ComplexDecl>());
llvm::Value* re = builder.CreateLoad(ty, builder.CreateGEP(ty, a, zero, "re"));
llvm::Value* im = builder.CreateLoad(ty, builder.CreateGEP(ty, a, one, "im"));
llvm::Value* rexre = builder.CreateFMul(re, re, "rexre");
llvm::Value* imxim = builder.CreateFMul(im, im, "imxim");
llvm::Value* resr = builder.CreateFSub(rexre, imxim, "subr");
llvm::Value* rexim = builder.CreateFMul(re, im, "rexim");
llvm::Value* resi = builder.CreateFAdd(rexim, rexim, "addi");
builder.CreateStore(resr, builder.CreateGEP(ty, res, zero));
builder.CreateStore(resi, builder.CreateGEP(ty, res, one));
return builder.CreateLoad(cplxTy, res);
}
llvm::Value* a = args[0]->CodeGen();
if (IsIntegral(args[0]->Type()))
{
return builder.CreateMul(a, a, "sqr");
}
return builder.CreateFMul(a, a, "sqr");
}
llvm::Value* FunctionFloat::CodeGen(llvm::IRBuilder<>& builder)
{
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()))
{
return CallRuntimeCplxFunc(builder, func, args);
}
return CallRuntimeFPFunc(builder, func, args);
}
Types::TypeDecl* FunctionFloat::Type() const
{
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()))
{
return Types::Get<Types::ComplexDecl>();
}
return Types::Get<Types::RealDecl>();
}
ErrorType FunctionFloat::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()) || CastIntegerToReal(args[0]))
{
return ErrorType::Ok;
}
return ErrorType::WrongArgType;
}
llvm::Value* FunctionFloatIntrinsic::CodeGen(llvm::IRBuilder<>& builder)
{
if (llvm::isa<Types::ComplexDecl>(args[0]->Type()))
{
return CallRuntimeCplxFunc(builder, func, args);
}
return CallRuntimeFPFunc(builder, "llvm." + func + ".f64", args);
}
llvm::Value* FunctionRound::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* v = CallRuntimeFPFunc(builder, "llvm.round.f64", args);
return builder.CreateFPToSI(v, Types::Get<Types::IntegerDecl>()->LlvmType(), "to.int");
}
ErrorType FunctionRound::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!llvm::isa<Types::RealDecl>(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionTrunc::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* v = args[0]->CodeGen();
return builder.CreateFPToSI(v, Types::Get<Types::IntegerDecl>()->LlvmType(), "to.int");
}
ErrorType FunctionIntConvert::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!llvm::isa<Types::RealDecl>(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionIntConvert::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* orig = args[0]->CodeGen();
llvm::Type* ty = args[0]->Type()->LlvmType();
llvm::FunctionCallee fnAbs = GetFunction(ty, { ty }, "llvm.fabs.f64");
llvm::Value* abs = builder.CreateCall(fnAbs, orig, "abs");
llvm::FunctionCallee fnFloor = GetFunction(ty, { ty }, "llvm.floor.f64");
llvm::Value* floor = builder.CreateCall(fnFloor, abs, "floor");
llvm::FunctionCallee fnCopySign = GetFunction(ty, { ty, ty }, "llvm.copysign.f64");
return builder.CreateCall(fnCopySign, { floor, orig }, "int");
}
ErrorType FunctionRandom::Semantics()
{
if (args.size() > 1)
{
return ErrorType::WrongArgCount;
}
if (args.size() == 1 && !IsIntegral(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
Types::TypeDecl* FunctionRandom::Type() const
{
if (args.size() == 1)
{
return args[0]->Type();
}
return Types::Get<Types::RealDecl>();
}
llvm::Value* FunctionRandom::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Type* resTy = Type()->LlvmType();
if (args.size() == 1)
{
llvm::Type* ty = Types::Get<Types::Int64Decl>()->LlvmType();
llvm::Value* v = Recast(args[0], Types::Get<Types::Int64Decl>())->CodeGen();
llvm::FunctionCallee f = GetFunction(resTy, { ty }, "__random_int");
return builder.CreateCall(f, { v }, "ranint");
}
ICE_IF(args.size(), "Expected no arguments here");
llvm::FunctionCallee f = GetFunction(resTy, {}, "__random");
return builder.CreateCall(f, {}, "random");
}
ErrorType FunctionRandomize::Semantics()
{
if (args.size() > 1)
{
return ErrorType::WrongArgCount;
}
if (args.size() == 1 && !IsIntegral(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionRandomize::CodeGen(llvm::IRBuilder<>& builder)
{
if (args.size() == 1)
{
llvm::Value* v = Recast(args[0], Types::Get<Types::Int64Decl>())->CodeGen();
llvm::FunctionCallee f = GetFunction(Types::Get<Types::VoidDecl>()->LlvmType(),
{ Types::Get<Types::Int64Decl>()->LlvmType() },
"__random_set_seed");
return builder.CreateCall(f, { v });
}
ICE_IF(args.size(), "Expected no arguments here");
llvm::FunctionCallee f = GetFunction(Types::Get<Types::VoidDecl>()->LlvmType(), {}, "__randomize");
return builder.CreateCall(f, {});
}
llvm::Value* FunctionChr::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* a = args[0]->CodeGen();
return builder.CreateTrunc(a, Types::Get<Types::CharDecl>()->LlvmType(), "chr");
}
ErrorType FunctionChr::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!IsIntegral(args[0]->Type()) || llvm::isa<Types::CharDecl>(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionOrd::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* a = args[0]->CodeGen();
return builder.CreateZExt(a, Types::Get<Types::IntegerDecl>()->LlvmType(), "ord");
}
ErrorType FunctionOrd::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!IsIntegral(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionSucc::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* a = args[0]->CodeGen();
llvm::Value* b = (args.size() == 2) ? args[1]->CodeGen() : MakeConstant(1, args[0]->Type());
return builder.CreateAdd(a, b, "succ");
}
ErrorType FunctionSucc::Semantics()
{
if (args.size() < 1 || args.size() > 2)
{
return ErrorType::WrongArgCount;
}
if (!IsIntegral(args[0]->Type()))
{
return ErrorType::WrongArgType;
}
if (args.size() == 2 && !llvm::isa<Types::IntegerDecl>(args[1]->Type()))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionPred::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* a = args[0]->CodeGen();
llvm::Value* b = (args.size() == 2) ? args[1]->CodeGen() : MakeConstant(1, args[0]->Type());
return builder.CreateSub(a, b, "pred");
}
llvm::Value* FunctionNew::CodeGen(llvm::IRBuilder<>& builder)
{
auto pd = llvm::dyn_cast<Types::PointerDecl>(args[0]->Type());
ICE_IF(!pd, "The argument to new should be a PointerDecl!");
const Types::TypeDecl* elemTy = pd->SubType();
size_t size = elemTy->Size();
llvm::Type* ty = Types::Get<Types::IntegerDecl>()->LlvmType();
// Result is "void *"
llvm::Type* voidTy = Types::GetVoidPtrType();
llvm::FunctionCallee f = GetFunction(voidTy, { ty }, "__new");
llvm::Value* retVal = builder.CreateCall(f, { MakeIntegerConstant(size) }, "new");
auto var = llvm::dyn_cast<AddressableAST>(args[0]);
// TODO: Fix this to be a proper TypeCast...
retVal = builder.CreateBitCast(retVal, pd->LlvmType(), "cast");
llvm::Value* pA = var->Address();
// TODO: We need to recursively process the type here, and construct vtables for all
// of the elements that are classes (that have VTables).
if (auto cd = llvm::dyn_cast<Types::ClassDecl>(elemTy))
{
if (cd->VTableType(Types::Opaque))
{
llvm::GlobalVariable* gv = theModule->getGlobalVariable("vtable_" + cd->Name(), true);
llvm::Value* dest = builder.CreateGEP(voidTy, retVal, MakeIntegerConstant(0), "vtable");
builder.CreateStore(gv, dest);
}
}
return builder.CreateStore(retVal, pA);
}
ErrorType FunctionNew::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!llvm::isa<Types::PointerDecl>(args[0]->Type()) || !llvm::isa<AddressableAST>(args[0]))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionDispose::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Type* ty = args[0]->Type()->LlvmType();
llvm::FunctionCallee f = GetFunction(Types::Get<Types::VoidDecl>()->LlvmType(), { ty }, "__dispose");
return builder.CreateCall(f, { args[0]->CodeGen() });
}
ErrorType FunctionHalt::Semantics()
{
if (args.size() > 1)
{
return ErrorType::WrongArgCount;
}
if (args.size() == 1 && (!IsIntegral(args[0]->Type()) || llvm::isa<Types::CharDecl>(args[0]->Type())))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionHalt::CodeGen(llvm::IRBuilder<>& builder)
{
llvm::Value* v = MakeIntegerConstant(0);
if (args.size() == 1)
{
v = args[0]->CodeGen();
}
llvm::FunctionCallee f = GetFunction(Types::Get<Types::VoidDecl>()->LlvmType(),
{ Types::Get<Types::IntegerDecl>()->LlvmType() }, "exit");
return builder.CreateCall(f, { v });
}
ErrorType FunctionInc::Semantics()
{
if (args.size() != 1)
{
return ErrorType::WrongArgCount;
}
if (!IsIntegral(args[0]->Type()) || !llvm::isa<AddressableAST>(args[0]))
{
return ErrorType::WrongArgType;
}
return ErrorType::Ok;
}
llvm::Value* FunctionInc::CodeGen(llvm::IRBuilder<>& builder)
{
auto var = llvm::dyn_cast<AddressableAST>(args[0]);
ICE_IF(!var, "Expected variable here... Semantics not working?");
llvm::Value* pA = var->Address();
llvm::Type* ty = var->Type()->LlvmType();
llvm::Value* a = builder.CreateLoad(ty, pA, "inc");
a = builder.CreateAdd(a, MakeConstant(1, var->Type()), "inc");
return builder.CreateStore(a, pA);
}
llvm::Value* FunctionDec::CodeGen(llvm::IRBuilder<>& builder)
{
auto var = llvm::dyn_cast<AddressableAST>(args[0]);
ICE_IF(!var, "Expected variable here... Semantics not working?");
llvm::Value* pA = var->Address();
llvm::Type* ty = var->Type()->LlvmType();
llvm::Value* a = builder.CreateLoad(ty, pA, "dec");
a = builder.CreateSub(a, MakeConstant(1, var->Type()), "dec");
return builder.CreateStore(a, pA);
}
// Pack(a, start, apacked);
ErrorType FunctionPack::Semantics()
{
if (args.size() != 3)
{
return ErrorType::WrongArgCount;
}
auto* t0 = llvm::dyn_cast<Types::ArrayDecl>(args[0]->Type());
auto* t2 = llvm::dyn_cast<Types::ArrayDecl>(args[2]->Type());