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82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
//===--- IRGenModule.cpp - Swift Global LLVM IR Generation ----------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements IR generation for global declarations in Swift.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/AST/ASTContext.h"
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#include "swift/AST/Module.h"
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#include "swift/AST/Stmt.h"
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#include "swift/AST/Diagnostics.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Intrinsics.h"
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#include "llvm/Module.h"
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#include "llvm/Type.h"
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#include "llvm/ADT/PointerUnion.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Target/TargetData.h"
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#include "GenType.h"
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#include "IRGenModule.h"
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#include "Linking.h"
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using namespace swift;
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using namespace irgen;
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IRGenModule::IRGenModule(ASTContext &Context,
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Options &Opts, llvm::Module &Module,
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const llvm::TargetData &TargetData)
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: Context(Context), Opts(Opts),
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Module(Module), LLVMContext(Module.getContext()),
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TargetData(TargetData), Types(*new TypeConverter()) {
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Int1Ty = llvm::Type::getInt1Ty(getLLVMContext());
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Int8Ty = llvm::Type::getInt8Ty(getLLVMContext());
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Int16Ty = llvm::Type::getInt16Ty(getLLVMContext());
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Int32Ty = llvm::Type::getInt32Ty(getLLVMContext());
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Int64Ty = llvm::Type::getInt64Ty(getLLVMContext());
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Int8PtrTy = llvm::Type::getInt8PtrTy(getLLVMContext());
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SizeTy = TargetData.getIntPtrType(getLLVMContext());
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MemCpyFn = nullptr;
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AllocFn = nullptr;
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llvm::Type *elts[] = { Int8PtrTy, Int8PtrTy };
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Int8PtrPairTy = llvm::StructType::get(LLVMContext, elts, /*packed*/ false);
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}
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IRGenModule::~IRGenModule() {
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delete &Types;
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}
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llvm::Constant *IRGenModule::getMemCpyFn() {
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if (MemCpyFn) return MemCpyFn;
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llvm::Type *types[] = { SizeTy };
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MemCpyFn = llvm::Intrinsic::getDeclaration(&Module, llvm::Intrinsic::memcpy,
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types);
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return MemCpyFn;
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}
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llvm::Constant *IRGenModule::getAllocationFunction() {
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if (AllocFn) return AllocFn;
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llvm::Type *types[] = { SizeTy };
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llvm::FunctionType *fnType = llvm::FunctionType::get(Int8PtrTy, types, false);
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AllocFn = Module.getOrInsertFunction("malloc", fnType);
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return AllocFn;
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}
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void IRGenModule::unimplemented(SourceLoc Loc, StringRef Message) {
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Context.Diags.diagnose(Loc, diag::irgen_unimplemented, Message);
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}
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