[patch] Enable column information by default

[David Blaikie]

On Wed, Jul 9, 2014 at 7:13 PM, Diego Novillo <dnovillo at google.com> wrote:
> On Wed, Jul 9, 2014 at 10:10 PM, Diego Novillo <dnovillo at google.com> wrote:
>> On Wed, Jul 9, 2014 at 9:35 PM, Nico Weber <thakis at chromium.org> wrote:
>>> Did you measure the compile time impact of this?
>>
>> Yes, in the message I mentioned in my patch description:
>>
>>>>
>>>> http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-June/074290.html
>
> Pushed send too soon. Sorry.
>
> The compile time effect is nil. The effect on generated debug info
> size is ~1% (less than 1% overall) and approximately 3% for -gmlt.

Just to clarify, this is % of total debug info size (all .debug_* (and
.reloc.debug_*) sections, etc) not the % of total object/dwo size,
right?

> I
> tested this over our whole internal code base.
>
>
> Diego.