| //===--- Transforms.h -----------------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// |
| /// Top level transforms for SemanticARCOpts |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SWIFT_SILOPTIMIZER_SEMANTICARCOPT_TRANSFORMS_H |
| #define SWIFT_SILOPTIMIZER_SEMANTICARCOPT_TRANSFORMS_H |
| |
| #include "llvm/Support/Compiler.h" |
| |
| namespace swift { |
| namespace semanticarc { |
| |
| struct Context; |
| |
| /// Given the current map of owned phi arguments to consumed incoming values in |
| /// ctx, attempt to convert these owned phi arguments to guaranteed phi |
| /// arguments if the phi arguments are the only thing that kept us from |
| /// converting these incoming values to be guaranteed. |
| /// |
| /// \returns true if we converted atleast one phi from owned -> guaranteed and |
| /// eliminated ARC traffic as a result. |
| bool tryConvertOwnedPhisToGuaranteedPhis(Context &ctx) LLVM_LIBRARY_VISIBILITY; |
| |
| } // namespace semanticarc |
| } // namespace swift |
| |
| #endif |
