------- Comment #3 from dorit at il dot ibm dot com 2007-02-19 12:56 ------- (In reply to comment #0)
Thanks for exercising the vectorizer and reporting these bugs! > On the wider issue of the quality of the vectorizer, I > have thrown most of Suse Linux 10.3 at it and it has crashed > in a few places. only a few? :-) > I suspect there would be considerable value at getting some > other distribution [ Debian ?], maybe on another type of > machine [ PPC64 ?], and flushing out a few more bugs in the optimizer. > You would need to ensure that -ftree-vectorize was switched > on for every compile. > Just a suggestion. I agree. We are working on a cost model these days to make the vectorizer less greedy, hopefully as a step towards enabling vectorization on by default - which would help in flushing bugs out. (Just as a side comment - FYI - most of the vectorizer bugs you opened so far in the last few days (30771, 30795, 30843) are related to features that were added *very* recently). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30858
