https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88834
--- Comment #17 from kugan at gcc dot gnu.org --- (In reply to Wilco from comment #16) > (In reply to kugan from comment #15) > > (In reply to Wilco from comment #11) > > > There is also something odd with the way the loop iterates, this doesn't > > > look right: > > > > > > whilelo p0.s, x3, x4 > > > incw x3 > > > ptest p1, p0.b > > > bne .L3 > > > > I am not sure I understand this. I tried with qemu using an execution > > testcase and It seems to work. > > > > whilelo p0.s, x4, x5 > > incw x4 > > ptest p1, p0.b > > bne .L3 > > In my case I have the above (register allocation difference only) incw is > > correct considering two vector word registers? Am I missing something here? > > I'm talking about the completely redundant ptest, where does that come from? It is https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88836
