Re: Can we speed up the gcc_target structure?

[Ian Lance Taylor <ian at wasabisystems dot com>]

Richard Henderson <rth@redhat.com> writes:

> I think perhaps we might be willing to move *some* things back to
> Where they can be seen to be compile-time constants.  However, 
> anything we move back had better be constant.

I think one issue is that there are things which are compile-time
constants for some platforms but not for others.  Those are the types
of things found in targetm.calls, for example.  Or, e.g.,
BYTES_BIG_ENDIAN, although that is not (yet) in the target vector.

> I do not want anyone to be tempted to do sneak more and more complex
> macros back into header files in the name of optimization.

I certainly agree with that.

Ian