llvm/llvm/docs/AMDGPU/gfx940_vdata_275367.rst

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.. _amdgpu_synid_gfx940_vdata_275367:

vdata
=====

Input data for an atomic instruction.

Optionally, this operand may be used to store output data:

* If :ref:`sc0<amdgpu_synid_sc0>` is specified, gets the memory value before the operation.

*Size:* 2 dwords.

*Operands:* :ref:`v<amdgpu_synid_v>`, :ref:`a<amdgpu_synid_a>`