egcs & gcc 2.8 ??
Jeffrey A Law
law@cygnus.com
Thu Dec 11 20:29:00 GMT 1997
In message < 199712112351.PAA23325@atrus.synopsys.com >you write:
> No, I think it is a safe assumption (that C++ code that compiles with egcs
> g++ will compile eventually with gcc2) -- the intent is that the C++ front
> end be installed in both egcs and gcc2, as I understand things. At any
> given point in time, egcs may be slightly ahead. *Warning*: this assumes
> that you attempt to write standard C++, not just whatever the compiler
> will accept; in the past, g++ has accepted invalid input due to bugs and
> folks complain when the next release fixes the bug and rejects the invalid
> input.
That's actually a more accurate statement than mine. Thanks Joe.
> > That depends mostly on the gcc2 folks. It's mostly out of our hands.
>
> haifa and -frepo, to name two. Otherwise they aren't going to be all that
> different, I think.
I think the EH code in egcs is further along, including more accurate flow
graphs, which are pretty important for both code correctness and valid warnings.
We'll have global cse & partial redundancy elimination soon, we've also got
several improvements to the loop optimizer.
> I suspect that many egcs-generated bug-fixes will appear relatively
> quickly in the gcc2 *snapshots*. How long it will take before a release
> occurs is another matter.
Quite true.
Thanks for helping clarify things Joe. Sometimes I'm a little too terse.
jeff
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