"Compilation" = reduce to normal form. No executable output
Finding these optimization opportunities can itself be a significant undertaking. It requires end-to-end understanding of the spec to identify which behaviors are observable and which can safely be elided. Even then, whether a given optimization is actually spec-compliant is often unclear. Implementers must make judgment calls about which semantics they can relax without breaking compatibility. This puts enormous pressure on runtime teams to become spec experts just to achieve acceptable performance.
The processor clock speed may seem incredibly low to us now and at the time there would have been Intel CPUs clocked at similar speeds. However, the SPARC CPU was designed with UNIX in mind and the IPX featured an MMU with 8x hardware contexts, which benefited multitasking.，详情可参考新收录的资料
October 15, 2025
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