Re: [RFA] expand from SSA form (1/2)

[Andreas Krebbel <krebbel@linux.vnet.ibm.com>]

> Your original one, or the amended one (for AIX)?  I'm asking because I 
> noticed a problem when fiddling with the AIX problem.  Your change to 
> insert_value_copy_on_edge might not work in all cases as you're doing the 
> expand_expr outside of a start_sequence.  I decided to simply not use the 
> helper function as I had to also change the code to use convert_modes.
> 
> It shouldn't expose itself as an RTL sharing problem, but it definitely 
> might have undesired effects.  Unfortunately our s390 is off today, so I 
> can't help without a testcase.

I've tested the modified version from your last posting 
(http://gcc.gnu.org/ml/gcc-patches/2009-04/msg02325.html). A already 
debugged a problem caused by my insert_value_copy_on_edge change - an 
infinite loop due to a miscompile of do_add in real.c arrgh.

Bye,

-Andreas-