> > By hand, I can compile the test in about 3 1/2 minutes on the machine in
> > question (the machine may have been busier when the failure occured and thus
> > taken longer). 
> 
> I think it's a real regression (memory consumption/speed) of the compiler, it 
> is timing out on all the slow SPARC machines I have (it is OK with 4.0.x).
> IIRC I observed the same regression between 3.2.x and 3.3.x on even slower 
> machines, but 3.4.x fixed it.
> 
> -- 
> Eric Botcazou

Yes, I think you are right.  I can see a substantial slowdown in
compilation times on IA64 HP-UX at -O2 (though it doesn't time out
there).

gcc 4.0.0 - 81 seconds
gcc 3.4.1 - 38 seconds
gcc 3.4.0 - 37 seconds
gcc 3.3.5 - 89 seconds
gcc 3.3.1 - 91 seconds

3.3 is slow, 3.4 is faster, 4.0.0 seems slow agin, I don't have 4.0.*
hanging around to test.

Looking at a timing report based on the 4.0.0 compiler it looks like
half the compile time is spent in the phase "dominance frontiers".

I will investigate some more.

Steve Ellcey
[EMAIL PROTECTED]

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