Re: Computed goto optimization of vanilla Lua

[Phil Leblanc <philanc@...>]

tested with gcc 4.7.1 on a x86_64 with a crypto hash test (sha3-512 in
pure Lua, lots of arithmetic and bit operations in tight loops).

With -O2:  no significant difference

With -Os:  approx 8% speedup for Lua with computed goto (average 83.5
sec vs. 90.5 sec on several iterations)  -- stripped executable was
approx 6KB larger.