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compiltime
2008 Jul 24
3
[LLVMdev] Irreducible CFG from tail duplication
It seems that tail duplication can make a reducible CFG irreducible
(example below). Is that intentional? Are there other optimizations
that have that property?
Is irreducibility a problem for existing LLVM passes? It looks like
there was once an open project for a pass to make irreducible graphs
reducible. Was that ever implemented?
- Mark
; "opt -inline -tailduplicate" makes an