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Revert "[amdgpu] Default to code object v3"
This reverts commit 4b2e7d0215021d0d1df1a6319884b21d33936265. Breaks check-clang, see https://reviews.llvm.org/D93258#2453600
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@ -911,12 +911,12 @@ The AMDGPU backend uses the following ELF header:
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* ``ELFABIVERSION_AMDGPU_HSA_V3`` is used to specify the version of AMD HSA
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runtime ABI for code object V3. Specify using the Clang option
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``-mcode-object-version=3``. This is the default code object
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version if not specified.
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``-mcode-object-version=3``.
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* ``ELFABIVERSION_AMDGPU_HSA_V4`` is used to specify the version of AMD HSA
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runtime ABI for code object V4. Specify using the Clang option
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``-mcode-object-version=4``.
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``-mcode-object-version=4``. This is the default code object
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version if not specified.
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* ``ELFABIVERSION_AMDGPU_PAL`` is used to specify the version of AMD PAL
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runtime ABI.
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@ -2871,6 +2871,10 @@ non-AMD key names should be prefixed by "*vendor-name*.".
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Code Object V3 Metadata
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+++++++++++++++++++++++
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.. warning::
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Code object V3 is not the default code object version emitted by this version
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of LLVM.
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Code object V3 to V4 metadata is specified by the ``NT_AMDGPU_METADATA`` note
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record (see :ref:`amdgpu-note-records-v3-v4`).
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@ -3275,10 +3279,6 @@ same *vendor-name*.
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Code Object V4 Metadata
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+++++++++++++++++++++++
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.. warning::
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Code object V4 is not the default code object version emitted by this version
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of LLVM.
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Code object V4 metadata is the same as
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:ref:`amdgpu-amdhsa-code-object-metadata-v3` with the changes and additions
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defined in table :ref:`amdgpu-amdhsa-code-object-metadata-map-table-v3`.
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