From 9017d37e84771f921a63676dd8b955df9ef20f29 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Fri, 23 Jan 2026 10:07:27 -0800
Subject: [PATCH] nir: Use STACK_ARRAY instead of NIR_VLA

The number of fields comes from the shader, so it could be a value large
enough that using alloca would be problematic.

Fixes: c11833ab24d ("nir,spirv: Rework function calls")
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39866>
---
 src/compiler/nir/nir_functions.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler/nir/nir_functions.c b/src/compiler/nir/nir_functions.c
index 5d5f66293be3..d4b3e652f1c1 100644
--- a/src/compiler/nir/nir_functions.c
+++ b/src/compiler/nir/nir_functions.c
@@ -22,10 +22,10 @@
  * IN THE SOFTWARE.
  */
 
+#include "util/stack_array.h"
 #include "nir.h"
 #include "nir_builder.h"
 #include "nir_control_flow.h"
-#include "nir_vla.h"
 
 /*
  * TODO: write a proper inliner for GPUs.
@@ -240,12 +240,13 @@ inline_functions_pass(nir_builder *b,
     * to an SSA value first.
     */
    const unsigned num_params = call->num_params;
-   NIR_VLA(nir_def *, params, num_params);
+   STACK_ARRAY(nir_def *, params, num_params);
    for (unsigned i = 0; i < num_params; i++) {
       params[i] = call->params[i].ssa;
    }
 
    nir_inline_function_impl(b, call->callee->impl, params, NULL);
+   STACK_ARRAY_FINISH(params);
    return true;
 }
 
-- 
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