This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: C++ compile time (again)
- From: law at redhat dot com
- To: Joe Buck <jbuck at synopsys dot com>
- Cc: Wolfgang Bangerth <bangerth at ices dot utexas dot edu>, Steven Bosscher <s dot bosscher at student dot tudelft dot nl>, gcc at gcc dot gnu dot org
- Date: Sun, 15 Jun 2003 10:36:28 -0600
- Subject: Re: C++ compile time (again)
- Reply-to: law at redhat dot com
In message <20030613085841.A15056@synopsys.com>, Joe Buck writes:
>On Fri, Jun 13, 2003 at 10:42:11AM -0500, Wolfgang Bangerth wrote:
>> On Friday 13 June 2003 10:31 am, Steven Bosscher wrote:
>>
>> > --enable-checking makes a very significant difference, so you're not
>> > making fair comparisons here. Do you have the numbers with checking
>> > disabled?
>>
>> If I have time over the weekend, I'll regenerate them. The comparison was m
>ore
>> of mainline against tree-ssa, and that comparison _was_ fair.
>
>It's fair if the overhead introduced by --enable-checking is equivalent
>for mainline and tree-ssa. Is it? (roughly). If tree-ssa does more
>checks, then the compile time regression might be artificial.
tree-ssa certainly does more checks by its nature of looking at more
trees :-)
Jeff