[Bug tree-optimization/109901] Optimization opportunity: ((((a) > (b)) - ((a) < (b))) < 0) -> ((a) < (b))

[richard.yao at alumni dot stonybrook.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109901

--- Comment #6 from Richard Yao <richard.yao at alumni dot stonybrook.edu> ---
(In reply to Andrew Pinski from comment #1)
> bool0 - bool1 == 1 -> bool0 & !bool1 -> bool0 < bool1
> bool0 - bool1 > 0 -> bool0 & !bool1 -> bool0 < bool1

That should be:

bool0 - bool1 == 1 -> bool0 & !bool1 -> bool0 > bool1
bool0 - bool1 > 0 -> bool0 & !bool1 -> bool0 > bool1