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Floating Point mode (--fp_mode)中relaxed和strict区别是什么？
--fp_mode
The main compiler option is the --fp_mode option. This option controls the compiler's overall floating-point optimization strategy.
--fp_mode=relaxed
Relaxed mode prioritizes speed over strict correctness. In relaxed mode, the compiler may perform speed optimizations at the expense of reducing the precision of some calculations, typically a tiny amount. For instance, (X/3) is not precisely equivalent to (X*(1.0/3)), but in relaxed mode, the compiler is allowed to make this transformation anyway, as multiplication is much faster than division.
--fp_mode=strict
Strict mode enforces strict IEEE-754 semantics, disabling all unsafe optimizations. The compiler will still perform optimizations that are provably safe, such as (X/2) -> (X*0.5). Using --fp_mode=strict sets --fp_reassoc=off by default.
