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panfrost: Preprocess shaders at CSO create time

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Now the only passes that depend on the shader key can run late, so we can
preprocess ahead-of-time once and throw away the original shader. This reduces
the cost of shader variants, as well as deduplicates some lowering for
transform feedback shaders.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20906>
This commit is contained in:
Alyssa Rosenzweig
2023-02-07 00:15:23 -05:00
committed by Marge Bot
parent 683d1b6078
commit c65a9be421
4 changed files with 29 additions and 29 deletions
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src/panfrost/compiler/bifrost_compile.c
-9
View File
@@ -4815,16 +4815,7 @@ bifrost_preprocess_nir(nir_shader *nir, unsigned gpu_id)
NIR_PASS_V(nir, pan_lower_sample_pos);
NIR_PASS_V(nir, nir_lower_bit_size, bi_lower_bit_size, NULL);
NIR_PASS_V(nir, nir_lower_64bit_phis);
if (nir->xfb_info != NULL && nir->info.has_transform_feedback_varyings) {
NIR_PASS_V(nir, nir_io_add_const_offset_to_base,
nir_var_shader_in | nir_var_shader_out);
NIR_PASS_V(nir, nir_io_add_intrinsic_xfb_info);
NIR_PASS_V(nir, pan_lower_xfb);
}
NIR_PASS_V(nir, nir_lower_regs_to_ssa);
NIR_PASS_V(nir, pan_nir_lower_64bit_intrin);
NIR_PASS_V(nir, pan_lower_helper_invocation);
NIR_PASS_V(nir, nir_lower_int64);
src/panfrost/midgard/midgard_compile.c
-8
View File
@@ -402,14 +402,6 @@ midgard_preprocess_nir(nir_shader *nir, unsigned gpu_id)
NIR_PASS_V(nir, pan_lower_helper_invocation);
NIR_PASS_V(nir, pan_lower_sample_pos);
if (nir->xfb_info != NULL && nir->info.has_transform_feedback_varyings) {
NIR_PASS_V(nir, nir_io_add_const_offset_to_base,
nir_var_shader_in | nir_var_shader_out);
NIR_PASS_V(nir, nir_io_add_intrinsic_xfb_info);
NIR_PASS_V(nir, pan_lower_xfb);
}
NIR_PASS_V(nir, midgard_nir_lower_algebraic_early);
NIR_PASS_V(nir, nir_lower_alu_to_scalar, mdg_should_scalarize, NULL);
NIR_PASS_V(nir, nir_lower_flrp, 16 | 32 | 64, false /* always_precise */);