clang
9.0.0
include
clang
Basic
AddressSpaces.h
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//===- AddressSpaces.h - Language-specific address spaces -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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/// \file
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/// Provides definitions for the various language-specific address
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/// spaces.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_BASIC_ADDRESSSPACES_H
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#define LLVM_CLANG_BASIC_ADDRESSSPACES_H
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#include <cassert>
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namespace
clang
{
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/// Defines the address space values used by the address space qualifier
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/// of QualType.
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///
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enum class
LangAS
: unsigned {
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// The default value 0 is the value used in QualType for the situation
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// where there is no address space qualifier.
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Default
= 0,
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// OpenCL specific address spaces.
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// In OpenCL each l-value must have certain non-default address space, each
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// r-value must have no address space (i.e. the default address space). The
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// pointee of a pointer must have non-default address space.
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opencl_global
,
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opencl_local
,
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opencl_constant
,
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opencl_private
,
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opencl_generic
,
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// CUDA specific address spaces.
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cuda_device
,
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cuda_constant
,
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cuda_shared
,
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// This denotes the count of language-specific address spaces and also
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// the offset added to the target-specific address spaces, which are usually
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// specified by address space attributes __attribute__(address_space(n))).
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FirstTargetAddressSpace
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};
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/// The type of a lookup table which maps from language-specific address spaces
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/// to target-specific ones.
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using
LangASMap
=
unsigned
[(unsigned)
LangAS::FirstTargetAddressSpace
];
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/// \return whether \p AS is a target-specific address space rather than a
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/// clang AST address space
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inline
bool
isTargetAddressSpace
(
LangAS
AS) {
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return
(
unsigned
)AS >= (unsigned)
LangAS::FirstTargetAddressSpace
;
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}
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inline
unsigned
toTargetAddressSpace
(
LangAS
AS) {
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assert(
isTargetAddressSpace
(AS));
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return
(
unsigned
)AS - (unsigned)
LangAS::FirstTargetAddressSpace
;
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}
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inline
LangAS
getLangASFromTargetAS
(
unsigned
TargetAS) {
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return
static_cast<
LangAS
>
((TargetAS) +
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(
unsigned
)
LangAS::FirstTargetAddressSpace
);
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}
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}
// namespace clang
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#endif // LLVM_CLANG_BASIC_ADDRESSSPACES_H
clang::getLangASFromTargetAS
LangAS getLangASFromTargetAS(unsigned TargetAS)
Definition:
AddressSpaces.h:66
clang::LangAS
LangAS
Defines the address space values used by the address space qualifier of QualType. ...
Definition:
AddressSpaces.h:25
clang::toTargetAddressSpace
unsigned toTargetAddressSpace(LangAS AS)
Definition:
AddressSpaces.h:61
clang::LangAS::opencl_private
clang::LangAS::opencl_local
clang::LangAS::cuda_constant
clang::LangAS::opencl_generic
clang::LangAS::cuda_shared
clang::LangAS::Default
clang::LangAS::cuda_device
clang::isTargetAddressSpace
bool isTargetAddressSpace(LangAS AS)
Definition:
AddressSpaces.h:57
clang
Dataflow Directional Tag Classes.
Definition:
CFGReachabilityAnalysis.h:21
clang::LangASMap
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:53
clang::LangAS::opencl_global
clang::LangAS::FirstTargetAddressSpace
clang::LangAS::opencl_constant
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