| 1 | //===--- AlignedAllocation.h - Aligned Allocation ---------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | /// |
| 9 | /// \file |
| 10 | /// Defines a function that returns the minimum OS versions supporting |
| 11 | /// C++17's aligned allocation functions. |
| 12 | /// |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #ifndef LLVM_CLANG_BASIC_ALIGNED_ALLOCATION_H |
| 16 | #define LLVM_CLANG_BASIC_ALIGNED_ALLOCATION_H |
| 17 | |
| 18 | #include "llvm/ADT/Triple.h" |
| 19 | #include "llvm/Support/ErrorHandling.h" |
| 20 | #include "llvm/Support/VersionTuple.h" |
| 21 | |
| 22 | namespace clang { |
| 23 | |
| 24 | inline llvm::VersionTuple alignedAllocMinVersion(llvm::Triple::OSType OS) { |
| 25 | switch (OS) { |
| 26 | default: |
| 27 | break; |
| 28 | case llvm::Triple::Darwin: |
| 29 | case llvm::Triple::MacOSX: // Earliest supporting version is 10.14. |
| 30 | return llvm::VersionTuple(10U, 14U); |
| 31 | case llvm::Triple::IOS: |
| 32 | case llvm::Triple::TvOS: // Earliest supporting version is 11.0.0. |
| 33 | return llvm::VersionTuple(11U); |
| 34 | case llvm::Triple::WatchOS: // Earliest supporting version is 4.0.0. |
| 35 | return llvm::VersionTuple(4U); |
| 36 | } |
| 37 | |
| 38 | llvm_unreachable("Unexpected OS"); |
| 39 | } |
| 40 | |
| 41 | } // end namespace clang |
| 42 | |
| 43 | #endif // LLVM_CLANG_BASIC_ALIGNED_ALLOCATION_H |
| 44 |