fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-07 09:18:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

pan/bi: Don't pack ICMP on FMA

Browse source 
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4883>
This commit is contained in:
Alyssa Rosenzweig 2020-05-01 21:42:53 -04:00
parent 5cbdf29b7e
commit 35c806e701
1 changed files with 9 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/panfrost/bifrost/bi_schedule.c
View file

@ -101,6 +101,14 @@ bi_ambiguous_abs(bi_instruction *ins)
return classy && typey && absy;
}
/* New Bifrost (which?) don't seem to have ICMP on FMA */
static bool
bi_icmp(bi_instruction *ins)
{
bool ic = nir_alu_type_get_base_type(ins->src_types[0]) != nir_type_float;
return ic && (ins->type == BI_CMP);
}
/* Lowers FMOV to ADD #0, since FMOV doesn't exist on the h/w and this is the
* latest time it's sane to lower (it's useful to distinguish before, but we'll
* need this handle during scheduling to ensure the ports get modeled
@ -150,6 +158,7 @@ bi_schedule(bi_context *ctx)
bool can_add = props & BI_SCHED_ADD;
can_fma &= !bi_ambiguous_abs(ins);
can_fma &= !bi_icmp(ins);
assert(can_fma || can_add);