llvm-project/llvm/docs/AMDGPU/gfx10_attr.rst
Dmitry Preobrazhensky 8ea3e9d9a2 [AMDGPU][MC][NFC][DOC] Updated AMD GPU assembler syntax description.
Summary of changes:
- Added f16 omod modifier (bug 51386).
- Corrected names of data types (bug 48638).
- Enabled a16 with most GFX10 MIMG opcodes (see https://reviews.llvm.org/D102231).
- Corrected description of integer operands (bug 51130).
- Corrected description of 8-bit DS offsets (bug 51536).
- Improved PERMLANE op_sel description.
- Corrected *SAD* opcode types.
2021-08-27 17:23:20 +03:00

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.. _amdgpu_synid_gfx10_attr:
attr
====
Interpolation attribute and channel:
============== ===================================
Syntax Description
============== ===================================
attr{0..32}.x Attribute 0..32 with *x* channel.
attr{0..32}.y Attribute 0..32 with *y* channel.
attr{0..32}.z Attribute 0..32 with *z* channel.
attr{0..32}.w Attribute 0..32 with *w* channel.
============== ===================================
Examples:
.. parsed-literal::
v_interp_p1_f32 v1, v0, attr0.x
v_interp_p1_f32 v1, v0, attr32.w