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ff2db93922
Define the possible runtime effects of an instruction in an enum `RuntimeEffect`. Add a new utility `swift:getRuntimeEffect` to estimate the runtime effects of an instruction. Also, add a mechanism to validate the correctness of the analysis in IRGen: annotate all runtime functions in RuntimeFunctions.def with the actual effect what the runtime function has or can have. Then check if the effects of emitted runtime functions for an instruction match what `getRuntimeEffect` predicts. This check is only enabled on demand by defining the CHECK_RUNTIME_EFFECT_ANALYSIS macro in RuntimeEffect.h
48 lines
1.6 KiB
C++
48 lines
1.6 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 "swift/SIL/RuntimeEffect.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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class AvailabilityContext;
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class ASTContext;
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enum class RuntimeAvailability {
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AlwaysAvailable,
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AvailableByCompatibilityLibrary,
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ConditionallyAvailable
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};
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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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RuntimeAvailability availability,
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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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