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brw: populate wm_prog_data earlier

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So that we can put the coarse_pixel_dispatch value available to NIR
lowering.

LNL internal fossildb changes:

Totals from 40 (0.01% of 490838) affected shaders:
Instrs: 33321 -> 33311 (-0.03%); split: -0.04%, +0.01%
Cycle count: 780136 -> 779936 (-0.03%); split: -0.03%, +0.00%
Max live registers: 5292 -> 5298 (+0.11%)
Non SSA regs after NIR: 26638 -> 26464 (-0.65%)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38996>
This commit is contained in:
Lionel Landwerlin 2025-12-18 17:17:49 +02:00 • committed by Marge Bot
parent 6a7ff83874
commit e3fd1b0ac0
1 changed files with 23 additions and 7 deletions
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30
src/intel/compiler/brw/brw_compile_fs.cpp
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@ -1477,6 +1477,20 @@ brw_print_fs_urb_setup(FILE *fp, const struct brw_wm_prog_data *prog_data,
}
}
static void
brw_nir_cleanup_pre_wm_prog_data(nir_shader *nir)
{
bool progress;
do {
progress = false;
NIR_PASS(progress, nir, nir_opt_algebraic);
NIR_PASS(progress, nir, nir_opt_copy_prop);
NIR_PASS(progress, nir, nir_opt_constant_folding);
NIR_PASS(progress, nir, nir_opt_dce);
NIR_PASS(progress, nir, nir_opt_cse);
} while (progress);
}
const unsigned *
brw_compile_fs(const struct brw_compiler *compiler,
struct brw_compile_fs_params *params)
@ -1538,6 +1552,15 @@ brw_compile_fs(const struct brw_compiler *compiler,
NIR_PASS(_, nir, brw_nir_move_interpolation_to_top);
brw_nir_cleanup_pre_wm_prog_data(nir);
int per_primitive_offsets[VARYING_SLOT_MAX];
memset(per_primitive_offsets, -1, sizeof(per_primitive_offsets));
brw_nir_populate_wm_prog_data(nir, compiler->devinfo, key, prog_data,
params->mue_map,
per_primitive_offsets);
if (!brw_wm_prog_key_is_dynamic(key)) {
uint32_t f = 0;
@ -1572,13 +1595,6 @@ brw_compile_fs(const struct brw_compiler *compiler,
brw_postprocess_nir_out_of_ssa(nir, 0, params->base.archiver,
debug_enabled);
int per_primitive_offsets[VARYING_SLOT_MAX];
memset(per_primitive_offsets, -1, sizeof(per_primitive_offsets));
brw_nir_populate_wm_prog_data(nir, compiler->devinfo, key, prog_data,
params->mue_map,
per_primitive_offsets);
if (unlikely(debug_enabled))
brw_print_fs_urb_setup(stderr, prog_data, per_primitive_offsets);