[kaffe] Bug [CVS]: 1f == 0.0

[Dalibor Topic]

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Hi Benja, hello Tim,

I've looked at the bytecodes of the test case, and
adapted it a bit. I belive the error occurs in
fload_x/fstore_x opcodes. f_const, as well as d_const,
dload_x and dstore_x appear to work as expected.

I've attached an updated test case, a bytecode
dissasembly, and the class file.

Tim, could you take a look at what might be causing
this?

cheers,
dalibor topic

--- Benja Fallenstein <b.fallenstein@gmx.de> wrote:
> 
> Hi,
> 
> does any of you knowledgable people have time to
> look into this? 
> Currently this is where our project fails on Kaffe,
> and I'm not able to 
> work around it (and we would not only like to run on
> Free Software, but 
> are also obligued to release only versions that also
> run on a Free VM, 
> by Savannah.gnu.org policy).
> 
> I hope this doesn't sound pushy-- I really
> appreciate your efforts. Just 
> wanted to note this particular bug is important for
> us.
> 
> Thank you!
> - Benja
> 
> Benja Fallenstein wrote:
> > 
> > Hi all,
> > 
> > This code:
> > 
> >> public class Bug {
> >>     public static void main(String[] args) {
> >>     float f = 1.0f;
> >>     System.out.println("f = "+f);
> >>     }
> >> }
> > 
> > 
> > gives:
> > 
> >> benja@joy:/tmp$
> /home/benja/j2sdk1.4.1_01/bin/java -cp . Bug
> >> f = 1.0
> >> benja@joy:/tmp$ /usr/local/kaffe/bin/java -cp .
> Bug
> >> f = 0.0
> > 
> > 
> > My Kaffe version string is:
> > 
> >> Engine: Just-in-time v3   Version: 1.1.x-cvs  
> Java Version: 1.1
> > 
> > 
> > Oh joy!
> > 
> > Thanks,
> > - Benja
> > 
> > 
> > _______________________________________________
> > kaffe mailing list
> > kaffe@kaffe.org
> > http://kaffe.org/cgi-bin/mailman/listinfo/kaffe
> > 
> > 
> 
> 
> 
> _______________________________________________
> kaffe mailing list
> kaffe@kaffe.org
> http://kaffe.org/cgi-bin/mailman/listinfo/kaffe



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--0-1617722797-1049298598=:5006
Content-Type: text/x-java; name="Bug.java"
Content-Description: Bug.java
Content-Disposition: inline; filename="Bug.java"

public class Bug {
     public static void main(String[] args) {

	//use f_const : works
     System.out.println(1.0f);

	// use fstore_1 fload_1 : fails
     float f = 1.0f;
     System.out.println(f);

	// use fstore_1, fload_2 : fails
     float f2 = 1.0f;
     System.out.println(f2);

	// use d_const : works
     System.out.println(1.0d);
	
	// use d_store, d_load : works
     double d = 1.0d;
     System.out.println(d);

     }
 }

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