nvk: Lower io to temporaries for tessellation evaluation nir

This is consistent to what radv does.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24326>

diff --git a/src/nouveau/vulkan/nvk_shader.c b/src/nouveau/vulkan/nvk_shader.c
index cb7b77c..0c4ec6e 100644 (file)
--- a/src/nouveau/vulkan/nvk_shader.c
+++ b/src/nouveau/vulkan/nvk_shader.c
@@ -313,9 +313,12 @@ nvk_lower_nir(struct nvk_device *device, nir_shader *nir,
    NIR_PASS(_, nir, nir_split_struct_vars, nir_var_function_temp);
    NIR_PASS(_, nir, nir_lower_vars_to_ssa);
 
-   if (nir->info.stage == MESA_SHADER_VERTEX || nir->info.stage == MESA_SHADER_GEOMETRY ||
+   if (nir->info.stage == MESA_SHADER_VERTEX ||
+       nir->info.stage == MESA_SHADER_GEOMETRY ||
        nir->info.stage == MESA_SHADER_FRAGMENT) {
       NIR_PASS_V(nir, nir_lower_io_to_temporaries, nir_shader_get_entrypoint(nir), true, true);
+   } else if (nir->info.stage == MESA_SHADER_TESS_EVAL) {
+      NIR_PASS_V(nir, nir_lower_io_to_temporaries, nir_shader_get_entrypoint(nir), true, false);
    }
 
    NIR_PASS(_, nir, nir_split_var_copies);