llvm/llvm/docs/AMDGPU/gfx90a_sdata_45d924.rst

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.. _amdgpu_synid_gfx90a_sdata_45d924:

sdata
=====

Input data for an atomic instruction.

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

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

*Size:* 2 dwords.

*Operands:* :ref:`s<amdgpu_synid_s>`, :ref:`flat_scratch<amdgpu_synid_flat_scratch>`, :ref:`xnack_mask<amdgpu_synid_xnack_mask>`, :ref:`vcc<amdgpu_synid_vcc>`, :ref:`ttmp<amdgpu_synid_ttmp>`