------- Comment #23 from mikulas at artax dot karlin dot mff dot cuni dot cz 2009-08-08 17:30 ------- (In reply to comment #21)
Unfortunatelly, that patch is wrong. It aligns when there is some vector type in the function but it doesn't align if the autovectorizer creates SSE instructions. Try that obstack example in comment #12 and you see that the function my_alloc uses 16-byte sse instructions on stack and it doesn't have aligned stack with the patch. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40838
