Richard Biener <richard.guent...@gmail.com>

> It happens that on some targets doing two FMAs in parallel and one
> non-FMA operation merging them is faster than chaining three FMAs...

Like I mentioned in the PR, long chains should be broken, but for that we need 
a new parameter to state how long a chain may be before it is split. The issue 
today is that it splits even very short chains, removing beneficial FMAs.

> But yes, somewhere I suggested that FMA detection should/could be
> integrated with reassociation.

Absolutely.

Wilco

Reply via email to