On Wed, Mar 07, 2012 at 11:01:36AM +0100, Richard Guenther wrote:
> Hmm, but then this complicates and slows down the generic alias machinery.
> Of course IMHO the RTL alias machinery should be conservative with respect
> to what the RTL IL allows - so the question is are non-legitimate addresses
> valid in regular instructions at any point?
I'd say that alias.c when processing non-debug insn content should just
ignore any cselib locs which have DEBUG_INSN_P setting_insn.
Then both -g and -g0 will see the same things.