Re: [PATCH] tree-optimization/117574 - bougs niter lt-to-ne

2024-11-20 Thread Richard Biener
On Fri, 15 Nov 2024, Richard Biener wrote: > When trying to change a IV from IV0 < IV1 to IV0' != IV1' we apply > fancy adjustments to the may_be_zero condition we compute rather > than using the obvious IV0->base >= IV1->base expression (to be > able to use > instead of >=?). This doesn't seem t

[PATCH] tree-optimization/117574 - bougs niter lt-to-ne

2024-11-15 Thread Richard Biener
When trying to change a IV from IV0 < IV1 to IV0' != IV1' we apply fancy adjustments to the may_be_zero condition we compute rather than using the obvious IV0->base >= IV1->base expression (to be able to use > instead of >=?). This doesn't seem to go well. Bootstrapped and tested on x86_64-unknow