[LLVMdev] Hoisting elements of array argument into registers

[Duncan Sands]

> However, it turns out that if you just run "opt -O3" twice then all of this
> stuff gets eliminated and you get truly optimal code - pretty awesome!

Yes, if I pipe the output from "dragonegg -O3" into "opt -O3" then the loop
is eliminated in "wf".  It would be interesting to find out why, and improve
the current list of passes.

Ciao,

Duncan.