[Mesa-dev] [PATCH 0/9] nir: Add better helpers for handling constant sources

Jason Ekstrand jason at jlekstrand.net
Mon Oct 22 13:05:17 UTC 2018


Yeah... Bas said he had the same problem. The series can be found on my 
wip/nir-const-src branch of you want to see it that way. I can also resend 
if it's helpful.

--Jason

On October 22, 2018 06:31:01 Samuel Iglesias Gonsálvez 
<siglesias at igalia.com> wrote:

> Patch 7/9 has never arrived my inbox and checking the archives [0], looks like
> the archive is messed up... it has only a few emails. Does somebody know what
> happened with the ML archive?
>
> Sam
>
> [0] https://lists.freedesktop.org/archives/mesa-dev/2018-October/date.html
>
> On Saturday, 20 October 2018 19:55:38 (CEST) Jason Ekstrand wrote:
>> Previously, the only thing we had was nir_src_as_const_value which returns
>> a pointer to a nir_const_value which was NULL if the source wasn't actually
>> a constant.  This was great except that almost none of the users considered
>> anything other than 32-bit values.  With 8, 16, and 64-bit values floating
>> around, we really shouldn't be hand-rolling it everywhere.  Most of the
>> code is currently safe if you operate under the assumption that things like
>> array indices are always 32 bits.  The glaring exception was some of the
>> helpers in nir_search_helpers.h where we definitely cannot be making that
>> assumption but were anyway.
>>
>> I've converted core NIR and i965 but have not written patches for vc4, ir3,
>> or radeon.
>>
>> Cc: Connor Abbott <cwabbott0 at gmail.com>
>> Cc: Timothy Arceri <tarceri at itsqueeze.com>
>> Cc: Eric Anholt <eric at anholt.net>
>> Cc: Rob Clark <robdclark at gmail.com>
>> Cc: Karol Herbst <karolherbst at gmail.com>
>> Cc: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
>>
>> Jason Ekstrand (9):
>>   nir: Add some new helpers for working with const sources
>>   nir/search: Use nir_src_is_const and friends
>>   nir/search_helpers: Use nir_src_is_const and friends
>>   nir: Use nir_src_is_const and nir_src_as_* in core code
>>   intel/fs,vec4: Clean up a repeated pattern with SSBOs
>>   intel/fs: Use the new nir_src_is_const and friends
>>   intel/vec4: Use the new nir_src_is_const and friends
>>   intel/analyze_ubo_ranges: Use nir_src_is_const and friends
>>   anv: Use nir_src_is_const and friends in lowering code
>>
>>  src/compiler/glsl/gl_nir_lower_samplers.c     |   7 +-
>>  src/compiler/nir/nir.c                        |  92 +++++
>>  src/compiler/nir/nir.h                        |  16 +
>>  src/compiler/nir/nir_deref.c                  |  14 +-
>>  src/compiler/nir/nir_gather_info.c            |   6 +-
>>  src/compiler/nir/nir_gs_count_vertices.c      |   7 +-
>>  src/compiler/nir/nir_lower_clip.c             |   2 +-
>>  src/compiler/nir/nir_lower_indirect_derefs.c  |   4 +-
>>  src/compiler/nir/nir_lower_io.c               |   6 +-
>>  .../nir/nir_lower_io_arrays_to_elements.c     |  11 +-
>>  src/compiler/nir/nir_lower_locals_to_regs.c   |   6 +-
>>  src/compiler/nir/nir_lower_two_sided_color.c  |   2 +-
>>  src/compiler/nir/nir_lower_vars_to_ssa.c      |  14 +-
>>  src/compiler/nir/nir_opt_dead_cf.c            |   7 +-
>>  src/compiler/nir/nir_opt_find_array_copies.c  |  13 +-
>>  src/compiler/nir/nir_opt_intrinsics.c         |   4 +-
>>  src/compiler/nir/nir_opt_large_constants.c    |   2 +-
>>  src/compiler/nir/nir_search.c                 |  70 +---
>>  src/compiler/nir/nir_search_helpers.h         |  49 ++-
>>  src/compiler/nir/nir_split_vars.c             |  17 +-
>>  src/compiler/nir/tests/vars_tests.cpp         |  10 +-
>>  src/intel/compiler/brw_fs.h                   |   2 +
>>  src/intel/compiler/brw_fs_nir.cpp             | 315 +++++++-----------
>>  .../compiler/brw_nir_analyze_ubo_ranges.c     |  15 +-
>>  src/intel/compiler/brw_vec4.h                 |   2 +
>>  src/intel/compiler/brw_vec4_gs_nir.cpp        |  12 +-
>>  src/intel/compiler/brw_vec4_nir.cpp           | 190 ++++-------
>>  src/intel/compiler/brw_vec4_tcs.cpp           |   6 +-
>>  .../vulkan/anv_nir_apply_pipeline_layout.c    |  15 +-
>>  .../vulkan/anv_nir_lower_ycbcr_textures.c     |   6 +-
>>  30 files changed, 423 insertions(+), 499 deletions(-)





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