aligned, base_ptr, offset, TRUE);
assert(format_desc->block.bits <= vec_len);
+ (void) vec_len; /* silence unused var warning for non-debug build */
packed = LLVMBuildBitCast(gallivm->builder, packed, dst_vec_type, "");
return lp_build_format_swizzle_aos(format_desc, &bld, packed);