bifrost: Lower usub_borrow

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15352>

src/panfrost/bifrost/bifrost_compile.h

@@ -77,6 +77,7 @@ static const nir_shader_compiler_options bifrost_nir_options = {
         /* TODO: Use IMULD on v7 */
         .lower_mul_high = true,
         .lower_uadd_carry = true,
+        .lower_usub_borrow = true,
 
         .has_fsub = true,
         .has_isub = true,

src/panfrost/ci/deqp-panfrost-g52-vk.toml

@@ -6,6 +6,7 @@ include = [
     "dEQP-VK.pipeline.blend.*",
     "dEQP-VK.api.copy_and_blit.core.*",
     "dEQP-VK.compute.builtin_var.*",
+    "dEQP-VK.glsl.builtin.function.integer.usubborrow.*",
     "dEQP-VK.image.load_store.with_format.1d.*",
     "dEQP-VK.image.load_store.with_format.1d_array.*",
     "dEQP-VK.image.load_store.with_format.2d.*",