Re: [tree-ssa]: Work on making SSAPRE bootstrap

[Pop Sébastian <pop at gauvain dot u-strasbg dot fr>]

On Mon, Mar 03, 2003 at 09:29:21PM -0500, Daniel Berlin wrote:
> >
> >A general question is do they used a good testsuite, or do they had
> >another technique for verifying complex optimizations?
> >
> No clue if they use anything else, however.
> 

I think the solution is in the previous message: 
http://gcc.gnu.org/ml/gcc/2003-03/msg00209.html

we compile two versions of GCC: 
- one with the optimization to be tested: optGCC
- one without this optimization: origGCC

then we take a big piece of code (SPEC, linux kernel, qt, ...)
that we compile using both versions of GCC.  We then diff binaries.
This is a sort of extended bootstrap.

	Sebastian