Tremendous increase in compile times for 3.4.1 with -mcpu=G5

[Dale Johannesen]

On Aug 14, 2004, at 1:32 PM, David Edelsohn wrote:
>>>>>> Bradley Lucier writes:
>
> Brad> I've been trying to digest this.  Is this a problem that gcc has 
> with
> Brad> 64-bit ppc architecture, i.e., one that will also show up on aix 
> and
> Brad> linux64?
>
> 	-mcpu=G5 is not a pure 64-bit PowerPC mode, it is a mixed mode:
> 64-bit computation within a function, but 32-bit ABI.  The conversion 
> back
> and forth at function boundaries causes the register allocator fits.

I believe Sparc V8plus mode is the only thing similar.  That might well 
have
the same problem.