Re: Ichbiah 2022 compiler mode

["Randy Brukardt" <randy@rrsoftware.com>]

"G.B." <bauhaus@notmyhomepage.invalid> wrote in message 
news:vk6tag$4tm1$1@dont-email.me...
> On 21.12.24 09:14, Randy Brukardt wrote:
...
>> Constants do help the compiler generate better code, although a lot of 
>> the
>> benefits can be gained also by working harder. (That's what C compilers 
>> do,
>> after all.)
>
> What are some compilers offering today? That is, can they find 
> declarations
> of variables that could be constants, if so instructed?

I was thinking from a code generation perspective, as opposed to static 
analysis. These are really the same process, but in one case the output is 
only for a computer, and in the other, the output is for a human. The needs 
of those outputs are quite different. I think a lot of compilers do 
optimizations of constants by discovery, but few compilers do much beyond 
rudimentary static analysis. I expect that to change, but I may be an 
optimist on that...

                        Randy.