llvm/docs/AMDGPU/gfx8_attr.rst

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   8 .. _amdgpu_synid_gfx8_attr:
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  10 attr
  11 ====
  12
  13 Interpolation attribute and channel:
  14
  15     ============== ===================================
  16     Syntax         Description
  17     ============== ===================================
  18     attr{0..32}.x  Attribute 0..32 with *x* channel.
  19     attr{0..32}.y  Attribute 0..32 with *y* channel.
  20     attr{0..32}.z  Attribute 0..32 with *z* channel.
  21     attr{0..32}.w  Attribute 0..32 with *w* channel.
  22     ============== ===================================
  23
  24 Examples:
  25
  26 .. parsed-literal::
  27
  28     v_interp_p1_f32 v1, v0, attr0.x
  29     v_interp_p1_f32 v1, v0, attr32.w