Why C++ compiles slowly

[Jacob Carlborg]

On 2010-08-26 16:14, BCS wrote:
> Hello Jacob,
>
>> On 2010-08-26 08:13, Walter Bright wrote:
>>
>>> Steven Schveighoffer wrote:
>>>
>>>> On Tue, 24 Aug 2010 03:58:57 -0400, Walter Bright
>>>> <newshound2 at digitalmars.com> wrote:
>>>>> Steven Schveighoffer wrote:
>>>>>
>>>>>> With profiling enabled, gprof outputs this as the top hitters:
>>>>>> Flat profile:
>>>>>> Each sample counts as 0.01 seconds.
>>>>>> % cumulative self self total
>>>>>> time seconds seconds calls ms/call ms/call name
>>>>>> 77.76 6.68 6.68 2952 2.26 2.26 elf_findstr(Outbuffer*, char
>>>>>> const*,
>>>>>> char const*)
>>>>>> 2.10 6.86 0.18 4342 0.04 0.04 searchfixlist
>>>>> elf_findstr definitely looks like a problem area. I can't look at
>>>>> it right now, so can you post this to bugzilla please?
>>>>>
>>>> http://d.puremagic.com/issues/show_bug.cgi?id=4721
>>>>
>>> Let me know how this works:
>>>
>>> http://www.dsource.org/projects/dmd/changeset/628
>>>
>> Shouldn't machobj.c get the same optimization?
>>
>
> Shouldn't something like a table lookup be shared rather than duplicated?

Yes, that would be better.


-- 
/Jacob Carlborg