| //===--- AlignedAllocation.h - Aligned Allocation ---------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// Defines a function that returns the minimum OS versions supporting |
| /// C++17's aligned allocation functions. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_BASIC_ALIGNED_ALLOCATION_H |
| #define LLVM_CLANG_BASIC_ALIGNED_ALLOCATION_H |
| |
| #include "llvm/ADT/Triple.h" |
| #include "llvm/Support/ErrorHandling.h" |
| #include "llvm/Support/VersionTuple.h" |
| |
| namespace clang { |
| |
| inline llvm::VersionTuple alignedAllocMinVersion(llvm::Triple::OSType OS) { |
| switch (OS) { |
| default: |
| break; |
| case llvm::Triple::Darwin: |
| case llvm::Triple::MacOSX: // Earliest supporting version is 10.14. |
| return llvm::VersionTuple(10U, 14U); |
| case llvm::Triple::IOS: |
| case llvm::Triple::TvOS: // Earliest supporting version is 11.0.0. |
| return llvm::VersionTuple(11U); |
| case llvm::Triple::WatchOS: // Earliest supporting version is 4.0.0. |
| return llvm::VersionTuple(4U); |
| } |
| |
| llvm_unreachable("Unexpected OS"); |
| } |
| |
| } // end namespace clang |
| |
| #endif // LLVM_CLANG_BASIC_ALIGNED_ALLOCATION_H |
