From b061ab7198bb93ff77aef7c219102b125cd56e8c Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Mon, 11 Mar 2024 14:08:57 -0400
Subject: [PATCH] zink: track whether shaders use load_barycentric_at_sample

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28113>
---
 src/gallium/drivers/zink/zink_compiler.c | 2 ++
 src/gallium/drivers/zink/zink_types.h    | 1 +
 2 files changed, 3 insertions(+)

diff --git a/src/gallium/drivers/zink/zink_compiler.c b/src/gallium/drivers/zink/zink_compiler.c
index 65754c4ddbe..ef66fd8c774 100644
--- a/src/gallium/drivers/zink/zink_compiler.c
+++ b/src/gallium/drivers/zink/zink_compiler.c
@@ -4648,6 +4648,8 @@ scan_nir(struct zink_screen *screen, nir_shader *shader, struct zink_shader *zs)
                 BITSET_SET_RANGE(shader->info.images_used, var->data.binding,
                                  var->data.binding + (MAX2(size, 1) - 1));
             }
+            if (intr->intrinsic == nir_intrinsic_load_barycentric_at_sample)
+               zs->uses_sample = true;
             if (intr->intrinsic == nir_intrinsic_is_sparse_texels_resident ||
                 intr->intrinsic == nir_intrinsic_image_deref_sparse_load)
                zs->sinfo.have_sparse = true;
diff --git a/src/gallium/drivers/zink/zink_types.h b/src/gallium/drivers/zink/zink_types.h
index c05b3187aaa..739838d0dce 100644
--- a/src/gallium/drivers/zink/zink_types.h
+++ b/src/gallium/drivers/zink/zink_types.h
@@ -824,6 +824,7 @@ struct zink_shader {
    bool has_uniforms;
    bool has_edgeflags;
    bool needs_inlining;
+   bool uses_sample;
    struct spirv_shader *spirv;
 
    struct {