https://jasper-aa64.github.io/zh/tags/strength-reduction/Recent content in Strength-Reduction on JasperHugozh-CNThu, 15 Oct 2026 00:00:00 +0000https://jasper-aa64.github.io/zh/posts/strength-reduction-arithmetic/Thu, 15 Oct 2026 00:00:00 +0000https://jasper-aa64.github.io/zh/posts/strength-reduction-arithmetic/编译器只做它能证明结果不变的替换，常数乘除它做得比人好；要人动手的，是它缺信息或者换了结果会变的地方：运行时的除数、符号、浮点。价格用整数存，精确也快。