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.
