[Sablevm-bugs] [ sablevm-Bugs-422564 ] Switch statement not handled correctly

[<no...@so...>]

Bugs item #422564, was updated on 2001-05-09 00:12
You can respond by visiting: 
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Category: None
Group: Execution Error
Status: Open
Resolution: None
>Priority: 8
Submitted By: Navindra Umanee (navindra)
>Assigned to: Etienne M. Gagnon (egagnon)
Summary: Switch statement not handled correctly

Initial Comment:
Aha!  Found my second or third SableVM bug -- finally 
one that's easy to describe and reproduce.  ;-)

Check the attached .java file, and compile it.  Run 
it against Sun Java and SableVM:

[asimov] [/home/navindra/work] java SableVMBug
Switch1: 1
[asimov] [/home/navindra/work] sablevm -Y SableVMBug
Switch1: default

While debugging coffi, I at first thought this bug 
involved nested switches but the simplicity of this 
included example proves otherwise and muchly confuses 
me.  It appears that sometimes switches work and 
sometimes not.  

I'll look into this some more if it'll help.



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Comment By: Navindra Umanee (navindra)
Date: 2001-05-09 00:59

Message:
Logged In: YES 
user_id=210140

It's more interesting than I thought.  The problem 
exhibits itself if one uses the Sun Java compiler to 
compile the attached file, but not if one uses the Jikes 
compiler with the SablePath libraries.

The most interesting difference in the compiled code is 
that Jikes uses a Tableswitch where javac uses a 
Lookupswitch.

Hmmm.  Must sleep.


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