[Mesa-dev] [PATCH v2 00/11] nir: Add some optimizations on variables

[Jason Ekstrand]

This is the second version of my optimization series for variables.  The
first version, including the very descriptive cover letter can be found
here:

https://patchwork.freedesktop.org/series/47295/

This second version contains changes to the array splitting and vector
narrowing passes.  The array splitting pass is just cleaned up a bit to
be more understandable and match the other passes better.  The vector
narrowing pass is renamed to nir_shrink_vec_array_vars and is improved to
also be able to shrink over-sized arrays.

This series can be found on my gitlab here:

https://gitlab.freedesktop.org/jekstrand/mesa/commits/wip/nir-var-opts

Cc: Timothy Arceri <tarceri at itsqueeze.com>
Cc: Caio Marcelo de Oliveira Filho <caio.oliveira at intel.com>

Jason Ekstrand (11):
  util/list: Make some helpers take const lists
  nir: Take if uses into account in ssa_def_components_read
  nir/instr_set: Fix nir_instrs_equal for derefs
  nir/types: Add array_or_matrix helpers
  nir: Add a structure splitting pass
  nir: Add an array splitting pass
  intel/nir: Use the new structure and array splitting passes
  nir: Add a array-of-vector variable shrinking pass
  intel/nir: Use nir_shrink_vec_array_vars
  nir: Add an array copy optimization
  intel/nir: Enable nir_opt_find_array_copies

 src/compiler/Makefile.sources                |    2 +
 src/compiler/nir/meson.build                 |    2 +
 src/compiler/nir/nir.c                       |    3 +
 src/compiler/nir/nir.h                       |    5 +
 src/compiler/nir/nir_instr_set.c             |    4 +-
 src/compiler/nir/nir_opt_find_array_copies.c |  383 +++++
 src/compiler/nir/nir_split_vars.c            | 1548 ++++++++++++++++++
 src/compiler/nir_types.cpp                   |   15 +
 src/compiler/nir_types.h                     |    2 +
 src/intel/compiler/brw_nir.c                 |   19 +-
 src/intel/compiler/brw_nir.h                 |    3 +-
 src/util/list.h                              |    8 +-
 12 files changed, 1980 insertions(+), 14 deletions(-)
 create mode 100644 src/compiler/nir/nir_opt_find_array_copies.c
 create mode 100644 src/compiler/nir/nir_split_vars.c

-- 
2.17.1