tree a0e212628d1a748a52d0cc67a233771b8c65943c
parent 91d9c55f3a435717224dace90b6181833ca9ea8e
author Rhys Perry <pendingchaos02@gmail.com> 1602592358 +0100
committer Marge Bot <eric+marge@anholt.net> 1602761622 +0000

aco: implement 16-bit literals

We can copy any value into a 16-bit subregister with a 3 dword
v_pack_b32_f16 on GFX10 or a v_and_b32+v_or_b32 on GFX9.

Because the generated code can depend on the register assignment and to
improve constant propagation, Builder::copy creates a p_create_vector in
the case of sub-dword literals.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7111>