https://bugs.llvm.org/show_bug.cgi?id=39302
Bug ID: 39302
Summary: [AMDGPU][MC][GFX9] Several VOP3 opcodes do not support
op_sel
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: AMDGPU
Assignee: unassignedb...@nondot.org
Reporter: dpreobrazhen...@luxoft.com
CC: llvm-bugs@lists.llvm.org
According with AMD docs, the following opcodes should support op_sel:
- v_alignbit_b32
- v_alignbyte_b32
- v_interp_p2_f16
Also there are 'legacy' opcodes:
- v_mad_legacy_f16
- v_mad_legacy_i16
- v_mad_legacy_u16
- v_fma_legacy_f16
- v_interp_p2_legacy_f16
- v_div_fixup_legacy_f16
These are labelled in SP3 as accepting op_sel; AMD docs says nothing about
that. I believe these legacy opcodes should not support op_sel because this
feature is not in GFX8.
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