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当SIMD失效时：浮点数结合律问题

本文探讨了浮点数运算为何无法像整数那样有效向量化，并分析了浮点数结合律不成立的根本原因。作者提供了实际解决方案，帮助开发者在SIMD编程中正确处理浮点运算的性能优化问题。

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