From 263a82f49b9a9a2a26090a015cedd6597a369dd0 Mon Sep 17 00:00:00 2001
From: Mel Henning <mhenning@darkrefraction.com>
Date: Mon, 8 Dec 2025 13:08:13 -0500
Subject: [PATCH] nir: Add nir_deref_instr_is_arr() helper
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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38856>
---
 src/compiler/nir/nir.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 26cb81a1481..448a8851a27 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -1789,6 +1789,14 @@ nir_deref_mode_is_in_set(const nir_deref_instr *deref, nir_variable_mode modes)
 
 static inline nir_deref_instr *nir_src_as_deref(nir_src src);
 
+/** Returns true if deref->arr is valid */
+static inline bool
+nir_deref_instr_is_arr(const nir_deref_instr *deref)
+{
+   return deref->deref_type == nir_deref_type_array ||
+          deref->deref_type == nir_deref_type_ptr_as_array;
+}
+
 static inline nir_deref_instr *
 nir_deref_instr_parent(const nir_deref_instr *instr)
 {