Hello, I'm going to need something like a DFG of a loop. I've been
studying
the ScalarEvolution analysis and it performs many of the functions I need
(it's something like a DFG, going recursively backwards), but I need
something that indicates me when a instruction has to be before another, or
can be switched. As I said in a previously message, my idea is to match the
instructions inside a loop in LUT, so before synthesizing, I have to decide
which instructions go to each LUT.
By the way, to know if a variable inside the loop is used out, and the loop
is in LCSSA form, it's as simple as to verify that in the exit blocks the
variable isn't used in a phi node?
Best regards.
Julio
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