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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===--- AlignedAllocation.h - Aligned Allocation ---------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | /// |
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| 9 | /// \file |
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| 10 | /// Defines a function that returns the minimum OS versions supporting |
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| 11 | /// C++17's aligned allocation functions. |
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| 12 | /// |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |||
| 15 | #ifndef LLVM_CLANG_BASIC_ALIGNEDALLOCATION_H |
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| 16 | #define LLVM_CLANG_BASIC_ALIGNEDALLOCATION_H |
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| 17 | |||
| 18 | #include "llvm/ADT/Triple.h" |
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| 19 | #include "llvm/Support/ErrorHandling.h" |
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| 20 | #include "llvm/Support/VersionTuple.h" |
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| 21 | |||
| 22 | namespace clang { |
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| 23 | |||
| 24 | inline llvm::VersionTuple alignedAllocMinVersion(llvm::Triple::OSType OS) { |
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| 25 | switch (OS) { |
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| 26 | default: |
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| 27 | break; |
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| 28 | case llvm::Triple::Darwin: |
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| 29 | case llvm::Triple::MacOSX: // Earliest supporting version is 10.13. |
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| 30 | return llvm::VersionTuple(10U, 13U); |
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| 31 | case llvm::Triple::IOS: |
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| 32 | case llvm::Triple::TvOS: // Earliest supporting version is 11.0.0. |
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| 33 | return llvm::VersionTuple(11U); |
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| 34 | case llvm::Triple::WatchOS: // Earliest supporting version is 4.0.0. |
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| 35 | return llvm::VersionTuple(4U); |
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| 36 | case llvm::Triple::ZOS: |
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| 37 | return llvm::VersionTuple(); // All z/OS versions have no support. |
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| 38 | } |
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| 39 | |||
| 40 | llvm_unreachable("Unexpected OS"); |
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| 41 | } |
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| 42 | |||
| 43 | } // end namespace clang |
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| 44 | |||
| 45 | #endif // LLVM_CLANG_BASIC_ALIGNEDALLOCATION_H |