Commit graph

11 commits

Author SHA1 Message Date
Iván Briano
a7280ab590 nir: add nir_lower_single_sampled::lower_sample_mask_in option
GLSL defines gl_SampleMaskIn as :
   "a fragment language that indicates the set of samples covered
    by the primitive generating the fragment during multisample
    rasterization"

when variable rate shading is enabled, a single invocation might cover
multiple samples. The lowering done in nir_lower_single_sampled() does
not account for that case, so add an option to selectively disable it.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38641>
2025-12-11 22:50:10 +00:00
Iván Briano
ef31f07077 nir: clear SAMPLE_MASK_IN if we lowered it
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38641>
2025-12-11 22:50:10 +00:00
Alyssa Rosenzweig
91872c9c51 nir: clang-format
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33722>
2025-02-26 15:19:53 +00:00
Alyssa Rosenzweig
da752ed7c1 treewide: use nir_def_replace sometimes
Two Coccinelle patches here. Didn't catch nearly as much as I would've liked but
it's a start.

Coccinelle patch:

    @@
    expression intr, repl;
    @@

    -nir_def_rewrite_uses(&intr->def, repl);
    -nir_instr_remove(&intr->instr);
    +nir_def_replace(&intr->def, repl);

Coccinelle patch:

    @@
    identifier intr;
    expression instr, repl;
    @@

    nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
    ...
    -nir_def_rewrite_uses(&intr->def, repl);
    -nir_instr_remove(instr);
    +nir_def_replace(&intr->def, repl);

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Juan A. Suarez Romero <jasuarez@igalia.com> [broadcom]
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com> [lima]
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com> [etna]
Reviewed-by: Pavel Ondračka <pavel.ondracka@gmail.com> [r300]
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29817>
2024-06-21 15:36:56 +00:00
Alyssa Rosenzweig
15257b65c6 treewide: use nir_metadata_control_flow
Via Coccinelle patch:

    @@
    @@

    -nir_metadata_block_index | nir_metadata_dominance
    +nir_metadata_control_flow

...plus some manual fixups for call sites missed by coccinelle.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Acked-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Juan A. Suarez Romero <jasuarez@igalia.com> [broadcom]
Acked-by: Vasily Khoruzhick <anarsoul@gmail.com> [lima]
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29745>
2024-06-17 16:28:14 -04:00
Alyssa Rosenzweig
465b138f01 treewide: Use nir_shader_intrinsic_pass sometimes
This converts a lot of trivial passes. Nice boilerplate deletion. Via Coccinelle
patch (with a small manual fix-up for panfrost where coccinelle got confused by
genxml + ninja clang-format squashed in, and for Zink because my semantic patch
was slightly buggy).

    @def@
    typedef bool;
    typedef nir_builder;
    typedef nir_instr;
    typedef nir_def;
    identifier fn, instr, intr, x, builder, data;
    @@

    static fn(nir_builder* builder,
    -nir_instr *instr,
    +nir_intrinsic_instr *intr,
    ...)
    {
    (
    -   if (instr->type != nir_instr_type_intrinsic)
    -      return false;
    -   nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
    |
    -   nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
    -   if (instr->type != nir_instr_type_intrinsic)
    -      return false;
    )

    <...
    (
    -instr->x
    +intr->instr.x
    |
    -instr
    +&intr->instr
    )
    ...>

    }

    @pass depends on def@
    identifier def.fn;
    expression shader, progress;
    @@

    (
    -nir_shader_instructions_pass(shader, fn,
    +nir_shader_intrinsics_pass(shader, fn,
    ...)
    |
    -NIR_PASS_V(shader, nir_shader_instructions_pass, fn,
    +NIR_PASS_V(shader, nir_shader_intrinsics_pass, fn,
    ...)
    |
    -NIR_PASS(progress, shader, nir_shader_instructions_pass, fn,
    +NIR_PASS(progress, shader, nir_shader_intrinsics_pass, fn,
    ...)
    )

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24852>
2023-08-24 15:48:02 +00:00
Faith Ekstrand
4695bebc79 nir: Drop nir_dest
Instead, we replace every use of it with nir_def.  Most of this commit
was generated by sed:

   sed -i -e 's/dest.ssa/def/g' src/**/*.h src/**/*.c src/**/*.cpp

A few manual fixups were required in lima and the nir_legacy code.

Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24674>
2023-08-14 21:22:53 +00:00
Alyssa Rosenzweig
09d31922de nir: Drop "SSA" from NIR language
Everything is SSA now.

   sed -e 's/nir_ssa_def/nir_def/g' \
       -e 's/nir_ssa_undef/nir_undef/g' \
       -e 's/nir_ssa_scalar/nir_scalar/g' \
       -e 's/nir_src_rewrite_ssa/nir_src_rewrite/g' \
       -e 's/nir_gather_ssa_types/nir_gather_types/g' \
       -i $(git grep -l nir | grep -v relnotes)

   git mv src/compiler/nir/nir_gather_ssa_types.c \
          src/compiler/nir/nir_gather_types.c

   ninja -C build/ clang-format
   cd src/compiler/nir && find *.c *.h -type f -exec clang-format -i \{} \;

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Acked-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24585>
2023-08-12 16:44:41 -04:00
Faith Ekstrand
777d336b1f nir: clang-format src/compiler/nir/*.[ch]
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24382>
2023-08-12 19:27:28 +00:00
Alyssa Rosenzweig
5fead24365 treewide: Drop is_ssa asserts
We only see SSA now.

Via Coccinelle patch:

    @@
    expression x;
    @@

    -assert(x.is_ssa);

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24432>
2023-08-03 22:40:28 +00:00
Jason Ekstrand
23b2d625dd nir: Add a pass for lowering shaders to single-sampled
On Intel, we have to do this because we can't ask for the per-sample
barycentrics without setting the per-sample dispatch bit or the GPU will
hang.  However, nothing we're doing in this pass is Intel-specific and
it may be a useful optimization for someone else so we may as well make
it a generic NIR pass.  This version actually does a bit more than the
current brw_nir_demote_sample_qualifiers() pass as it also handles
pre-nir_lower_io interp_dref_at* as well as a couple system values which
we can easily constant-fold.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14020>
2022-07-13 20:28:42 +00:00