intel/fs: Add support for vec8 and vec16 ops

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6502>
diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index 765f127..857ee8e 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -752,6 +752,8 @@
    case nir_op_vec2:
    case nir_op_vec3:
    case nir_op_vec4:
+   case nir_op_vec8:
+   case nir_op_vec16:
       return result;
    default:
       break;
@@ -1002,14 +1004,16 @@
    unsigned execution_mode =
       bld.shader->nir->info.float_controls_execution_mode;
 
-   fs_reg op[4];
+   fs_reg op[NIR_MAX_VEC_COMPONENTS];
    fs_reg result = prepare_alu_destination_and_sources(bld, instr, op, need_dest);
 
    switch (instr->op) {
    case nir_op_mov:
    case nir_op_vec2:
    case nir_op_vec3:
-   case nir_op_vec4: {
+   case nir_op_vec4:
+   case nir_op_vec8:
+   case nir_op_vec16: {
       fs_reg temp = result;
       bool need_extra_copy = false;
       for (unsigned i = 0; i < nir_op_infos[instr->op].num_inputs; i++) {