clang 20.0.0git
AddressSpaces.h
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1//===- AddressSpaces.h - Language-specific address spaces -------*- 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/// Provides definitions for the various language-specific address
11/// spaces.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_CLANG_BASIC_ADDRESSSPACES_H
16#define LLVM_CLANG_BASIC_ADDRESSSPACES_H
17
18#include <cassert>
19
20namespace clang {
21
22/// Defines the address space values used by the address space qualifier
23/// of QualType.
24///
25enum class LangAS : unsigned {
26 // The default value 0 is the value used in QualType for the situation
27 // where there is no address space qualifier.
28 Default = 0,
29
30 // OpenCL specific address spaces.
31 // In OpenCL each l-value must have certain non-default address space, each
32 // r-value must have no address space (i.e. the default address space). The
33 // pointee of a pointer must have non-default address space.
41
42 // CUDA specific address spaces.
46
47 // SYCL specific address spaces.
53
54 // Pointer size and extension address spaces.
57 ptr64,
58
59 // HLSL specific address spaces.
61
62 // Wasm specific address spaces.
64
65 // This denotes the count of language-specific address spaces and also
66 // the offset added to the target-specific address spaces, which are usually
67 // specified by address space attributes __attribute__(address_space(n))).
69};
70
71/// The type of a lookup table which maps from language-specific address spaces
72/// to target-specific ones.
74
75/// \return whether \p AS is a target-specific address space rather than a
76/// clang AST address space
78 return (unsigned)AS >= (unsigned)LangAS::FirstTargetAddressSpace;
79}
80
81inline unsigned toTargetAddressSpace(LangAS AS) {
82 assert(isTargetAddressSpace(AS));
83 return (unsigned)AS - (unsigned)LangAS::FirstTargetAddressSpace;
84}
85
86inline LangAS getLangASFromTargetAS(unsigned TargetAS) {
87 return static_cast<LangAS>((TargetAS) +
89}
90
92 return (AS == LangAS::ptr32_sptr || AS == LangAS::ptr32_uptr ||
93 AS == LangAS::ptr64);
94}
95
96} // namespace clang
97
98#endif // LLVM_CLANG_BASIC_ADDRESSSPACES_H
The JSON file list parser is used to communicate input to InstallAPI.
unsigned[(unsigned) LangAS::FirstTargetAddressSpace] LangASMap
The type of a lookup table which maps from language-specific address spaces to target-specific ones.
Definition: AddressSpaces.h:73
bool isTargetAddressSpace(LangAS AS)
Definition: AddressSpaces.h:77
unsigned toTargetAddressSpace(LangAS AS)
Definition: AddressSpaces.h:81
LangAS
Defines the address space values used by the address space qualifier of QualType.
Definition: AddressSpaces.h:25
bool isPtrSizeAddressSpace(LangAS AS)
Definition: AddressSpaces.h:91
LangAS getLangASFromTargetAS(unsigned TargetAS)
Definition: AddressSpaces.h:86