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pan/bi: Mark whole flat variables

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Otherwise, we'll only mark the first location for matrix and array
variables.  Ideally, someone would split these before we get here but we
should at least be correct.

Cc: mesa-stable
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39274>
This commit is contained in:
Faith Ekstrand 2026-01-14 15:15:42 -05:00 • committed by Marge Bot
parent 020b1005c8
commit 871875d0ce
1 changed files with 4 additions and 2 deletions
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6
src/panfrost/compiler/bifrost/bifrost_compile.c
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@ -6107,8 +6107,10 @@ bi_fp32_varying_mask(nir_shader *nir)
assert(nir->info.stage == MESA_SHADER_FRAGMENT);
nir_foreach_shader_in_variable(var, nir) {
if (var->data.interpolation == INTERP_MODE_FLAT)
mask |= BITFIELD64_BIT(var->data.location);
if (var->data.interpolation == INTERP_MODE_FLAT) {
unsigned slots = glsl_count_attribute_slots(var->type, false);
mask |= BITFIELD64_RANGE(var->data.location, slots);
}
}
nir_shader_instructions_pass(nir, bi_gather_texcoords, nir_metadata_all,