#![no_builtins]interferes with LTO, so stop using it. For memcpy etc., we'll just be careful to always call compiler_builtins instead of using plain code that could be pattern-matched.
If we ever want to stop using compiler_builtins, we can use black_box to prevent compilers from pattern-matching.
#![no_builtins]interferes with LTO, so stop using it. Formemcpyetc., we'll just be careful to always callcompiler_builtinsinstead of using plain code that could be pattern-matched.If we ever want to stop using
compiler_builtins, we can useblack_boxto prevent compilers from pattern-matching.