[Yarv-devel] benchmark crashing and register questions

[gabriele renzi]

hi,

I was playing with the latest yarv(rev123) 
with ruby 1.9.0 (2005-01-21)
compiled with gcc 3.4.2 (mingw-special)
on my windows box (XP pro SP2)
over my Athlon cpu (AthlonXP 2000+)

I noticed yarv crashes on its own benchmarks:


      user     system      total        real
ruby 29.162000   0.530000  29.692000 ( 30.233000)
./benchmark/bm_so_object.rb:57: [BUG] BUG: unknown
node: NODE_SUPER
ruby 1.9.0 (2005-01-21) [i386-mingw32]


This application has requested the Runtime to
terminate it in an unusual way.
Please contact the application's support team for more
information.

** benchmark failure: Invalid argument
./benchmark/run.rb:74:in `gets'
./benchmark/run.rb:74:in `benchmark'
./benchmark/run.rb:71:in `popen'
./benchmark/run.rb:71:in `benchmark'
./benchmark/run.rb:85:in `yarv_exec'
./benchmark/run.rb:37:in `bm'
./benchmark/run.rb:96
./benchmark/run.rb:94:in `each'
./benchmark/run.rb:94

actually, it crashes like this if run from a benchmark
as simple as:

class T
 def initialize(bar)
 end
end

class NT< T
    def initialize
        super 'foo'
    end
end



If I recall correct SUPER/ZSUPER are broken at the
moment, so this could be normal, but then, should'nt
testcases for this appear in test/test_class.rb ? 


Another little thing: I noticed there are quite a bit
of "register" variables, but I wonder if they are
worthy in a register starved architecture like x86. 

Also, given that lots of stuff is in registers..
koichi, have you considered caching the top of the
stack too? It seems a resonably simple optimization to
me, just requiring tuning of instructions, and it
could be useful in architectures with lots of
registers such as x86-64/IA-64/ppc.

 
As usual, I beg you pardon for being total lame in C,
so if my questions seem really stupid try to consider
answers as "yarv documentation for dummies" :)

=====
icq #69488917


		
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