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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- AddressSpaces.h - Language-specific address spaces -------*- 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 | /// Provides definitions for the various language-specific address |
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| 11 | /// spaces. |
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| 12 | // |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |||
| 15 | #ifndef LLVM_CLANG_BASIC_ADDRESSSPACES_H |
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| 16 | #define LLVM_CLANG_BASIC_ADDRESSSPACES_H |
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| 17 | |||
| 18 | #include <cassert> |
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| 19 | |||
| 20 | namespace clang { |
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| 21 | |||
| 22 | /// Defines the address space values used by the address space qualifier |
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| 23 | /// of QualType. |
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| 24 | /// |
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| 25 | enum class LangAS : unsigned { |
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| 26 | // The default value 0 is the value used in QualType for the situation |
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| 27 | // where there is no address space qualifier. |
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| 28 | Default = 0, |
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| 29 | |||
| 30 | // OpenCL specific address spaces. |
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| 31 | // In OpenCL each l-value must have certain non-default address space, each |
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| 32 | // r-value must have no address space (i.e. the default address space). The |
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| 33 | // pointee of a pointer must have non-default address space. |
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| 34 | opencl_global, |
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| 35 | opencl_local, |
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| 36 | opencl_constant, |
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| 37 | opencl_private, |
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| 38 | opencl_generic, |
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| 39 | opencl_global_device, |
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| 40 | opencl_global_host, |
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| 41 | |||
| 42 | // CUDA specific address spaces. |
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| 43 | cuda_device, |
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| 44 | cuda_constant, |
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| 45 | cuda_shared, |
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| 46 | |||
| 47 | // SYCL specific address spaces. |
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| 48 | sycl_global, |
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| 49 | sycl_global_device, |
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| 50 | sycl_global_host, |
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| 51 | sycl_local, |
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| 52 | sycl_private, |
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| 53 | |||
| 54 | // Pointer size and extension address spaces. |
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| 55 | ptr32_sptr, |
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| 56 | ptr32_uptr, |
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| 57 | ptr64, |
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| 58 | |||
| 59 | // HLSL specific address spaces. |
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| 60 | hlsl_groupshared, |
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| 61 | |||
| 62 | // This denotes the count of language-specific address spaces and also |
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| 63 | // the offset added to the target-specific address spaces, which are usually |
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| 64 | // specified by address space attributes __attribute__(address_space(n))). |
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| 65 | FirstTargetAddressSpace |
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| 66 | }; |
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| 67 | |||
| 68 | /// The type of a lookup table which maps from language-specific address spaces |
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| 69 | /// to target-specific ones. |
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| 70 | using LangASMap = unsigned[(unsigned)LangAS::FirstTargetAddressSpace]; |
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| 71 | |||
| 72 | /// \return whether \p AS is a target-specific address space rather than a |
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| 73 | /// clang AST address space |
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| 74 | inline bool isTargetAddressSpace(LangAS AS) { |
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| 75 | return (unsigned)AS >= (unsigned)LangAS::FirstTargetAddressSpace; |
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| 76 | } |
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| 77 | |||
| 78 | inline unsigned toTargetAddressSpace(LangAS AS) { |
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| 79 | assert(isTargetAddressSpace(AS)); |
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| 80 | return (unsigned)AS - (unsigned)LangAS::FirstTargetAddressSpace; |
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| 81 | } |
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| 82 | |||
| 83 | inline LangAS getLangASFromTargetAS(unsigned TargetAS) { |
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| 84 | return static_cast<LangAS>((TargetAS) + |
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| 85 | (unsigned)LangAS::FirstTargetAddressSpace); |
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| 86 | } |
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| 87 | |||
| 88 | inline bool isPtrSizeAddressSpace(LangAS AS) { |
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| 89 | return (AS == LangAS::ptr32_sptr || AS == LangAS::ptr32_uptr || |
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| 90 | AS == LangAS::ptr64); |
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| 91 | } |
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| 92 | |||
| 93 | } // namespace clang |
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| 94 | |||
| 95 | #endif // LLVM_CLANG_BASIC_ADDRESSSPACES_H |