Brian, Upstream closed this bug report as invalid:
"That is because the early complete unrolling comes and unrolls the loop so the autovectorizer does not have a loop to work on anymore. If I increase it to be 16 instead of 4, the loop is vectorizer. So the original testcase is invalid as two things: aliasing and alignment. Aliasing because out could overlap with in1/in2, restrict fixes that. And then the alignment comes into play because there is no way to say the incoming arguments are 16 byte aligned." "t.c:11: note: cost model: Adding cost of checks for loop versioning to treat misalignment. t.c:11: note: cost model: Adding cost of checks for loop versioning aliasing." -- Martin Michlmayr http://www.cyrius.com/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
