fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-08 22:08:26 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

nir: Don't try to scalarize unpack ops.

Browse source 
Avoids regressions in vc4 when trying to do our blending in NIR.

v2: Add the other unpack ops I meant to when writing the original commit
    message.

Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Eric Anholt 2015-07-31 15:35:22 -07:00
parent 9e6dc5b64d
commit d50c182671
1 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
src/glsl/nir/nir_lower_alu_to_scalar.c
View file

@ -100,6 +100,21 @@ lower_alu_instr_scalar(nir_alu_instr *instr, void *mem_ctx)
*/
return;
case nir_op_unpack_unorm_4x8:
case nir_op_unpack_snorm_4x8:
case nir_op_unpack_unorm_2x16:
case nir_op_unpack_snorm_2x16:
/* There is no scalar version of these ops, unless we were to break it
* down to bitshifts and math (which is definitely not intended).
*/
return;
case nir_op_unpack_half_2x16:
/* We could split this into unpack_half_2x16_split_[xy], but should
* we?
*/
return;
LOWER_REDUCTION(nir_op_fdot, nir_op_fmul, nir_op_fadd);
LOWER_REDUCTION(nir_op_ball_fequal, nir_op_feq, nir_op_iand);
LOWER_REDUCTION(nir_op_ball_iequal, nir_op_ieq, nir_op_iand);