From 11fb6c30b3795c9484898d7a36efbe09115ab409 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Sch=C3=BCrmann?= <daniel@schuermann.dev>
Date: Mon, 10 Nov 2025 12:17:43 +0100
Subject: [PATCH] nir/lower_vars_to_ssa: return early if there is no local
 variables to lower

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38367>
---
 src/compiler/nir/nir_lower_vars_to_ssa.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler/nir/nir_lower_vars_to_ssa.c b/src/compiler/nir/nir_lower_vars_to_ssa.c
index afe44ddc5ca..3ed843da847 100644
--- a/src/compiler/nir/nir_lower_vars_to_ssa.c
+++ b/src/compiler/nir/nir_lower_vars_to_ssa.c
@@ -793,6 +793,10 @@ rename_variables(struct lower_variables_state *state)
 static bool
 nir_lower_vars_to_ssa_impl(nir_function_impl *impl)
 {
+   /* Nothing to do... */
+   if (exec_list_is_empty(&impl->locals))
+      return nir_no_progress(impl);
+
    struct lower_variables_state state;
 
    state.shader = impl->function->shader;