[InstCombine] Signed saturation patterns
[llvm-complete.git] / docs / AMDGPU / gfx9_src_exp.rst
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8 .. _amdgpu_synid9_src_exp:
10 vsrc
11 ===========================
13 Data to copy to export buffers. This is an optional operand. Must be specified as :ref:`off<amdgpu_synid_off>` if not used.
15 :ref:`compr<amdgpu_synid_compr>` modifier indicates use of compressed (16-bit) data. This limits number of source operands from 4 to 2:
17 * src0 and src1 must specify the first register (or :ref:`off<amdgpu_synid_off>`).
18 * src2 and src3 must specify the second register (or :ref:`off<amdgpu_synid_off>`).
20 An example:
22 .. parsed-literal::
24   exp mrtz v3, v3, off, off compr
26 *Size:* 1 dword.
28 *Operands:* :ref:`v<amdgpu_synid_v>`, :ref:`off<amdgpu_synid_off>`