On Tue, Sep 25, 2012 at 03:40:10PM +0200, Segher Boessenkool wrote: > >This is okay, but can you also add a target testcase to check that the > >correct assembly instructions are generated so that we can try to > >ensure this does not regress again? > > This won't regress in this way again, because now the pattern is a > single RTL op. But yes, target tests for this kind of thing would > be quite useful. > > However, I'm going to overhaul the whole SCC thing, so I'd rather > add tests for everything at once. OTOH, it's a good exercise I > suppose... Your choice :-)
Yes, I had probably fixed that regression 2-3 times while I was rewriting the SCC stuff, but since I never could get any improvements without regressions, I put it on the back burner to get to more stuff. If you want, I can share what I had. -- Michael Meissner, IBM 5 Technology Place Drive, M/S 2757, Westford, MA 01886-3141, USA meiss...@linux.vnet.ibm.com fax +1 (978) 399-6899
