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Instruction output: data read from a memory buffer.

If :ref:`lds<amdgpu_synid_lds>` is specified, this operand is ignored by H/W and data are stored directly into LDS.

Size: 1 dword by default. :ref:`tfe<amdgpu_synid_tfe>` adds 1 dword if specified.

Note that :ref:`tfe<amdgpu_synid_tfe>` and :ref:`lds<amdgpu_synid_lds>` cannot be used together.

Operands: :ref:`v<amdgpu_synid_v>`