derek.holloway
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60 lines
1.9 KiB
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60 lines
1.9 KiB
ReStructuredText
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<style type="text/css">
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.none { background-color: #FFCCCC }
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.part { background-color: #FFFF99 }
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.good { background-color: #CCFF99 }
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</style>
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.. role:: none
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.. role:: part
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.. role:: good
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.. contents::
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:local:
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==============
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AMDGPU Support
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==============
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Clang supports OpenCL, HIP and OpenMP on AMD GPU targets.
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Predefined Macros
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=================
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.. list-table::
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:header-rows: 1
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* - Macro
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- Description
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* - ``__AMDGPU__``
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- Indicates that the code is being compiled for an AMD GPU.
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* - ``__AMDGCN__``
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- Defined if the GPU target is AMDGCN.
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* - ``__R600__``
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- Defined if the GPU target is R600.
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* - ``__<ArchName>__``
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- Defined with the name of the architecture (e.g., ``__gfx906__`` for the gfx906 architecture).
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* - ``__<GFXN>__``
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- Defines the GFX family (e.g., for gfx906, this macro would be ``__GFX9__``).
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* - ``__amdgcn_processor__``
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- Defined with the processor name as a string (e.g., ``"gfx906"``).
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* - ``__amdgcn_target_id__``
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- Defined with the target ID as a string.
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* - ``__amdgcn_feature_<feature-name>__``
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- Defined for each supported target feature. The value is 1 if the feature is enabled and 0 if it is disabled. Allowed feature names are sramecc and xnack.
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* - ``__AMDGCN_CUMODE__``
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- Defined as 1 if the CU mode is enabled and 0 if the WGP mode is enabled.
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* - ``__AMDGCN_UNSAFE_FP_ATOMICS__``
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- Defined if unsafe floating-point atomics are allowed.
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* - ``__HAS_FMAF__``
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- Defined if FMAF instruction is available (deprecated).
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* - ``__HAS_LDEXPF__``
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- Defined if LDEXPF instruction is available (deprecated).
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* - ``__HAS_FP64__``
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- Defined if FP64 instruction is available (deprecated).
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Please note that the specific architecture and feature names will vary depending on the GPU. Also, some macros are deprecated and may be removed in future releases.
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