[MacRuby-devel] Assertion failed: (castIsValid(getOpcode(), S, Ty) && "Illegal SExt"), function SExtInst, file Instructions.cpp, line 2508.

[Laurent Sansonetti]

Hi,

Do you run by any chance a 32-bit only machine? This could explain the  
crash, the compiler has still 32-bit problems. This will be fixed in  
the final 0.5 release.

Laurent

On Sep 27, 2009, at 2:27 PM, Art Taylor wrote:

> I'm in the process of migrating an Objective-C project to MacRuby  
> (0.5 trunk) and am seeing this error when I run the application:
>
> Assertion failed: (castIsValid(getOpcode(), S, Ty) && "Illegal  
> SExt"), function SExtInst, file Instructions.cpp, line 2508.
>
> The stack looks like this:
>
> #0	0x9870d912 in __kill
> #1	0x9870d904 in kill$UNIX2003
> #2	0x987a0b99 in raise
> #3	0x987b6c50 in abort
> #4	0x987a37f8 in __assert_rtn
> #5	0x0090ab1a in llvm::SExtInst::SExtInst
> #6	0x001528b3 in RoxorCompiler::compile_conversion_to_ruby
> #7	0x00158847 in RoxorCompiler::compile_stub
> #8	0x0017e173 in RoxorCore::gen_stub
> #9	0x0018b4cd in rb_vm_dispatch
> #10	0x00e432a2 in ??
> #11	0x0004c2cb in ruby_run_node
> #12	0x00186a61 in macruby_main
> #13	0x00002c64 in main at main.m:13
>
> I was following the (admittedly quite old) page covering this sort  
> of activity at http://www.macruby.org/trac/wiki/MacRubyFromObjC.
>
> My main.m and rb_main.rb are vanilla and copied from the FlickrDemo  
> (which runs on my system).  If I reduce rb_main.rb to the bare  
> minimum of the following, I still get the error.
>
> framework 'Cocoa'
> NSApplicationMain(0, nil)
>
> I'm assuming it's something in my ObjC code that is causing the  
> problem -- is there a good way to zero in on it?  My llvm and  
> MacRuby knowledge is pretty rough, so I'm not sure where to drop  
> breakpoints.  If there's a "don't use <datatype>" rule of thumb,  
> that would be great, too, as that appears to be where things may be  
> hung up.
>
> Thanks!
>
> -a.
>
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