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From: Tom Tromey <tromey@redhat.com>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: java/7482: gij verify error
Date: Mon, 12 Aug 2002 16:43:00 -0000	[thread overview]
Message-ID: <20020812233601.20986.qmail@sources.redhat.com> (raw)

The following reply was made to PR java/7482; it has been noted by GNATS.

From: Tom Tromey <tromey@redhat.com>
To: <jmr@fulcrummicro.com>
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: java/7482: gij verify error
Date: 12 Aug 2002 17:38:18 -0600

 >>>>> "jmr" == jmr  <jmr@fulcrummicro.com> writes:
 
 jmr> The gij verifier erroneously gives an error when run on the class
 jmr> file resulting from the following code:
 
 I've investigated this.  It is definitely a bug in the verifier.
 
 The problem is that after merging we see Object on the stack -- but
 this isn't compatible with the return value of the method.  This is
 due to a limitation in how we represent the type of items on the
 stack.
 
 One fix would be to adopt a workaround in the verifier's handling of
 areturn similar to that used in invokeinterface.  This fix would
 require adding a runtime check to the interpreter.
 
 Another choice would be to change the verifier's internal
 representation of types and merging.
 
 Tom


             reply	other threads:[~2002-08-12 23:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-12 16:43 Tom Tromey [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-08-03 16:56 jmr

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