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aco: allocate a temp VGPR for some 8-bit/16-bit reduction ops on GFX10 

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5148>
This commit is contained in:
Samuel Pitoiset 2020-05-18 17:03:21 +02:00 committed by Marge Bot
parent 2e0ea9bcca
commit 8ece71507d
1 changed files with 4 additions and 1 deletions
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5
src/amd/compiler/aco_reduce_assign.cpp
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@ -125,10 +125,13 @@ void setup_reduce_temp(Program* program)
op == fmin64 || op == fmax64 || op == umin64 ||
op == umax64 || op == imin64 || op == imax64 ||
op == imul64;
bool gfx10_need_vtmp = op == imul8 || op == imax8 || op == imin8 || op == umin8 ||
op == imul16 || op == imax16 || op == imin16 || op == umin16 ||
op == iadd64;
if (program->chip_class >= GFX10 && cluster_size == 64)
need_vtmp = true;
if (program->chip_class >= GFX10 && op == iadd64)
if (program->chip_class >= GFX10 && gfx10_need_vtmp)
need_vtmp = true;
if (program->chip_class <= GFX7)
need_vtmp = true;