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Re: "human readable" optimized code

Andrew Haley wrote: 
There are two distinct phases of optimization, one on high-level
code and on low-level code.  So -- to cut a long story short -- we first
optimize the C, then we generate assembler, and then we optimize that.
You're probably seeing one of the later optimizations.

I was just interested why that is? I could think of things like aliasing issues, but it still seems possible to do that in a single "Universal Machine Instruction Set" pass.

Thank you.

Reza.

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