Re: We're out of tree codes; now what?

2007-03-20 Thread Dan Nicolaescu
"Doug Gregor" <[EMAIL PROTECTED]> writes: > On 3/20/07, Kaveh R. GHAZI <[EMAIL PROTECTED]> wrote: > > Would you please consider testing the 16 bit tree code as you did for 8 vs > > 9 bits? Perhaps you could also measure memory usage for all three > > solutions? > > I've measured the

pushl vs movl + movl on x86

2005-08-23 Thread Dan Nicolaescu
For this code (from PR23525): extern int waiting_for_initial_map; extern int cp_pipe[2]; extern int pc_pipe[2]; extern int close (int __fd); void first_map_occurred(void) { close(cp_pipe[0]); close(pc_pipe[1]); waiting_for_initial_map = 0; } gcc -march=i686 -O2 generates:

Re: Large, modular C++ application performance ...

2005-08-01 Thread Dan Nicolaescu
michael meeks <[EMAIL PROTECTED]> writes: > Hi there, > > I've been doing a little thinking about how to improve OO.o startup > performance recently; and - well, relocation processing happens to be > the single, biggest thing that most tools flag. Have you tried eliminating all the

Re: GCC 3.4.4 RC1

2005-05-11 Thread Dan Nicolaescu
"Etienne Lorrain" <[EMAIL PROTECTED]> writes: > > Etienne Lorrain <[EMAIL PROTECTED]> wrote: > > > >> Some of those problem may also exist in GCC-4.0 because this > >> version (and the 4.1 I tested) gives me an increase of 60% of the > >> code size compared to 3.4.3. > > > > >

Re: GCC 4.1: Buildable on GHz machines only?

2005-04-28 Thread Dan Nicolaescu
Dan Nicolaescu <[EMAIL PROTECTED]> writes: > Matt Thomas <[EMAIL PROTECTED]> writes: > > > Richard Henderson wrote: > > > On Tue, Apr 26, 2005 at 10:57:07PM -0400, Daniel Jacobowitz wrote: > > > > > >>I would expect it

Re: GCC 4.1: Buildable on GHz machines only?

2005-04-26 Thread Dan Nicolaescu
Matt Thomas <[EMAIL PROTECTED]> writes: > Richard Henderson wrote: > > On Tue, Apr 26, 2005 at 10:57:07PM -0400, Daniel Jacobowitz wrote: > > > >>I would expect it to be drastically faster. However this won't show up > >>clearly in the bootstrap. The, bar none, longest bit of the boot

Re: My opinions on tree-level and RTL-level optimization

2005-04-18 Thread Dan Nicolaescu
[EMAIL PROTECTED] (Richard Kenner) writes: > The correct viewpoint is "we shouldn't remove CSE until every > *profitable* transformation it makes is subsumed by something else". > > And, as I understand it, the claim is that this is not yet true for the > following of jumps and m