Re: [tcb] [RFC] partial rewrite of PHI-OPT

[Andrew Pinski <pinskia at physics dot uc dot edu>]

On Sep 29, 2004, at 1:04 PM, Andrew Pinski wrote:

> Since PHI-OPT only takes into account if find a PHI with two nodes
> we miss some opportunities for optimization on the tree level which
> we pick up on the RTL level via the if-cvt pass.  This patch
> implements so that look at all COND_EXPR and see if we can do the
> transformations.

Here is the updated patch after the merge of the mainline into tcb.
This patch with a patch to fold can help improve compile time
speed of C++.  template_args_equal is where we spend a huge amount
of time, in fact we don't need to have a stack frame for that function.
I will send a patch to fold which fixes the last part of code 
generation,
later this week.

OK? This has been bootstrapped and tested on powerpc-darwin with no
regressions.

Thanks,
Andrew Pinski

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