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55 lines
2.3 KiB
C++
55 lines
2.3 KiB
C++
//===--- RuntimeFnWrappersGen.h - LLVM IR Generation for runtime functions ===//
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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 - 2017 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 https://swift.org/LICENSE.txt for license information
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// See https://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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// Helper functions providing the LLVM IR generation for runtime entry points.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_RUNTIME_RUNTIMEFNWRAPPERSGEN_H
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#define SWIFT_RUNTIME_RUNTIMEFNWRAPPERSGEN_H
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#include "llvm/IR/Module.h"
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#include "llvm/ADT/ArrayRef.h"
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namespace swift {
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/// Generate an llvm declaration for a runtime entry with a
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/// given name, return types, argument types, attributes and
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/// a calling convention.
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llvm::Constant *getRuntimeFn(llvm::Module &Module,
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llvm::Constant *&cache,
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char const *name,
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llvm::CallingConv::ID cc,
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llvm::ArrayRef<llvm::Type*> retTypes,
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llvm::ArrayRef<llvm::Type*> argTypes,
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llvm::ArrayRef<llvm::Attribute::AttrKind> attrs);
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/// Generate an llvm wrapper for a runtime entry with a
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/// given name, return types, argument types, attributes and a
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/// calling convention.
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///
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/// Symbol is the name of a global symbol containing the
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/// address of the runtime entry implementation.
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/// The wrapper simply invokes a corresponding entry point
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/// by means of an indirect call of the function currently
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/// referenced by the symbol.
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///
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/// Each wrapper has a hidden linkage and marked as ODR, so that
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/// a linker can merge all wrappers with the same name.
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llvm::Constant *getWrapperFn(llvm::Module &Module, llvm::Constant *&cache,
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char const *name, char const *symbol,
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llvm::CallingConv::ID cc,
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llvm::ArrayRef<llvm::Type *> retTypes,
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llvm::ArrayRef<llvm::Type *> argTypes,
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llvm::ArrayRef<llvm::Attribute::AttrKind> attrs);
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} /* Namespace swift */
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#endif
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