fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-29 05:50:11 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

intel/nir: Split IO arrays into elements

Browse source 
The NIR nir_lower_io_arrays_to_elements pass attempts to split I/O
variables which are arrays or matrices into a sequence of separate
variables.  This can help link-time optimization by allowing us to
remove varyings at a more granular level.

Shader-db results on Kaby Lake:

    total instructions in shared programs: 15177645 -> 15168494 (-0.06%)
    instructions in affected programs: 79857 -> 70706 (-11.46%)
    helped: 392
    HURT: 0

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand 2018-07-25 22:52:39 -07:00
parent 57804efa88
commit b0bb547f78
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/intel/compiler/brw_nir.c
View file

@ -709,6 +709,10 @@ void
brw_nir_link_shaders(const struct brw_compiler *compiler,
nir_shader **producer, nir_shader **consumer)
{
nir_lower_io_arrays_to_elements(*producer, *consumer);
nir_validate_shader(*producer);
nir_validate_shader(*consumer);
NIR_PASS_V(*producer, nir_remove_dead_variables, nir_var_shader_out);
NIR_PASS_V(*consumer, nir_remove_dead_variables, nir_var_shader_in);