”最终，我找到了真正的原因，那是台支持投机执行（speculative execution）的早期机器，它会执行两条分支路径。而在单步调试分支指令时，GDB总是只会进入其中一个分支。
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In order to further enhanced CPU’s performance greatly, a superscalar architecture processor CK610 was also researched, and the proposed supporting techniques included execution speculation, non-blocking instruction issue and data access, hardware reserved stack and dynamic configurable write-back cache.
本文进一步研究了基于超标量体系的CK610,提出了投机执行、非阻塞指令发射和数据访问、硬件保留栈,以及动态可配置的CACHE回写等关键技术,大幅提升了性能。
参考来源 - 32位高性能嵌入式CPU及平台研发·2,447,543篇论文数据，部分数据来源于NoteExpress
投机优化技术作为一种先进的现代编译技术，有效地提高了指令执行的并行性。
Speculation is a very effective way to improve instruction level parallelism as an advance compiler optimization technique.
三是抑制投机性购房。加大差别化信贷、税收政策执行力度。完善商品房预售制度。
Third, we will rein in speculative housing purchases. We will intensify the implementation of differentiated credit and tax policies. We will improve the advance purchase system for commodity housing.
他们已经强制执行降低二手房支付的50%，并考虑物业税，以遏制投机性购买。
They've mandated minimum down payments of 50% on second homes and are considering property taxes to rein in speculative purchases.
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