Re: optimized code


"Daniel O'Connell [C# MVP]" <onyxkirx@xxxxxxxxxxxxxxxxxxxxx> wrote in
message news:eNZ5Ljq%23FHA.1676@xxxxxxxxxxxxxxxxxxxxxxx
>
> Yes, the Managed C++ compiler should still be better. the C# compiler
> still doesn't go very far as far as optimizations go, AFAIK anyway. They
> are left to the JIT.

Thanks. Well, I guess I don't care if the compiler does the magic, or the
JIT.
I assume the JIT is limited to peephole optimizations? Does the JIT handle
common sub-expression removal, loop invarients, etc?

If I have an inner loop of something like:
for ( i ...) {
a.b.c.x = ...
a.b.c.y = ...
a.b.c.arr[i] =
...
}

Do I need to put a.b.c in a local outside the loop, or will the JIT take
care of this?
Sometimes it's cleaner to code this way, sometimes not - but there's also
auto-generated code, and whether I need to generate code with temps.

thanks



.

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