[patch] Split Parse Timevar (issue4378056)

[Richard Guenther]

On Tue, Apr 12, 2011 at 9:06 PM, Diego Novillo <dnovillo@google.com> wrote:
> On Tue, Apr 12, 2011 at 14:49, Lawrence Crowl <crowl@google.com> wrote:
>> This patch provides more finer, more precise compile time information.
>> I sent an advisory mail some time ago, and it was good then.  Please
>> confirm for trunk.
>
> The patch looks fine to me, but of course it's Jason the one you need
> an OK from.

Pushing/popping timevars is not free.  What's the compile-time impact of this
change (for -ftime-report, of course) - with small timed regions, does it not
just return garbage because of clock precision issues and overhead of
querying the clock iself?

Richard.