[Bug bootstrap/17817] [4.0 Regression] restage[1,2,3] and then bootstrap no longer cause build dir to be rebuilt

[paolo dot bonzini at polimi dot it]

------- Additional Comments From paolo dot bonzini at polimi dot it  2004-10-05 06:44 -------
Subject: Re:  [4.0 Regression] restage[1,2,3] and then
 bootstrap no longer cause build dir to be rebuilt

> I don't see why speeding up the gen* programs isn't an option here.  I
> do see that they often produce identical output, and that this is
> pointless.
> I just wanted to register my complaint that something that used to be a
> valuable source of testing (I've had entire optimizations have all their
> bugs exposed by gengtype and genattrtab, so that when those two were
> working, it bootstrapped and passed the entire testsuite on the first
> try).

I was about to suggest to use $(CC_FOR_BUILD) for generator programs, so 
that it is useless to rerun them on each stage, but this is definitely a 
point.

Paolo



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17817