Patch for java/jcf-write.c handling of negative zero

[Mark Wielaard]

Hi,

When writing java byte-code negative and positive zero are different.
So the following patch only writes const_0 when the value is not
negative.

2002-04-16  Mark Wielaard  <mark@klomp.org>

    * jcf-write.c (generate_bytecode_insns): Only write const_0 if not
    negative zero.

Tested on i686-pc-linux-gnu and powerpc-unknown-linux-gnu.
It fixes the following new test case for libjava.lang.

2002-04-16  Mark Wielaard  <mark@klomp.org>

        * libjava.lang/negzero.java: New.
        * libjava.lang/negzero.out: New.

It also fixes 7 failures in the Mauve testsuite which is why I would
also like this to go onto the 3.1 branch.

Ok to commit?

Cheers,

Mark
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