Pure functions
- From: Coda Highland <chighland@xxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Thu, 31 Jan 2013 15:18:11 -0800
I know LuaJIT performs a number of optimizations during compilation,
such as strength reduction and CSE. I also remember Mike having
mentioned something at one point about the JIT knowing that sqrt() is
a pure function and can therefore be hoisted out of a loop as an
invariant.
Does the JIT identify any other functions as pure? Can it identify a
Lua function as pure? If so, how?
Also, does the JIT inline any Lua functions? If it does, how does it
choose which ones to inline?
/s/ Adam
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