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nir: Check the deref mode in lower_point_size()

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This is more robust because it ensures that we only ever check the
location on something that we know is an outupt.  Also, if it's an
output then we know (thanks, validation!) that it's a variable.

Reviewed-by: Olivia Lee <olivia.lee@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38265>
This commit is contained in:
Faith Ekstrand 2025-11-05 12:04:40 -05:00 • committed by Marge Bot
parent 5ed35866c2
commit 0ccadf7a86
1 changed files with 2 additions and 2 deletions
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4
src/compiler/nir/nir_lower_point_size.c
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@ -42,10 +42,10 @@ lower_point_size_intrin(nir_builder *b, nir_intrinsic_instr *intr, void *data)
if (intr->intrinsic == nir_intrinsic_store_deref) {
nir_deref_instr *deref = nir_src_as_deref(intr->src[0]);
nir_variable *var = nir_deref_instr_get_variable(deref);
if (!var)
if (!nir_deref_mode_is(deref, nir_var_shader_out))
return false;
nir_variable *var = nir_deref_instr_get_variable(deref);
location = var->data.location;
psiz_src = &intr->src[1];
} else if (intr->intrinsic == nir_intrinsic_store_output ||