Re: [PATCH] Compute nonzero_bits from __builtin_unreachable assertions

2013-10-29 Thread Richard Biener
On Sat, 26 Oct 2013, Jakub Jelinek wrote: > Hi! > > And here is a patch that allows vectorization without peeling for alignment > and scalar loop for bound even for fn2, fn3 and fn4 in the following > testcase, though as with the range __builtin_unreachable () notes, it is > quite fragile, becaus

[PATCH] Compute nonzero_bits from __builtin_unreachable assertions

2013-10-25 Thread Jakub Jelinek
Hi! And here is a patch that allows vectorization without peeling for alignment and scalar loop for bound even for fn2, fn3 and fn4 in the following testcase, though as with the range __builtin_unreachable () notes, it is quite fragile, because it only works if there are no immediate uses of the t