Re: Precompiled headers (or other speed ups)

[Phil Edwards <pedwards at disaster dot jaj dot com>]

On Wed, Jan 10, 2001 at 02:29:03PM +0100, Andi Kleen wrote:
> 
> I don't know why that's the case, but I suspect all the operator overloading
> resolving and handling of the non regular C++ grammar etc. has a cost over C.
> [It actually quite surprised me, I always assumed that the backend would
> dominate compile cost]

There have been some changes since

    http://gcc.gnu.org/ml/gcc/2000-08/msg00515.html

was posted in last August, but there is a good example of how the parser
can dominate just about everything.  That message kicked off a very good
discussion on precompiled headers and parsing performance in C++.


Phil

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