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Posted to commits@harmony.apache.org by "Egor Pasko (JIRA)" <ji...@apache.org> on 2006/12/18 13:33:22 UTC
[jira] Created: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
[drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
----------------------------------------------------------------------------
Key: HARMONY-2773
URL: http://issues.apache.org/jira/browse/HARMONY-2773
Project: Harmony
Issue Type: Bug
Components: DRLVM
Environment: IA32/OPT/anyOS
Reporter: Egor Pasko
consider the following testcase:
class nan
{
public static void main(String[] args)
{
double a = -1.0d;
double b = 0.0d;
double c;
double a2 = 1.0d;
double b2 = -0.0d;
c = a / b;
if ( c == Double.NEGATIVE_INFINITY ) {
System.out.println("test1: PASS");
}else{
System.out.println("test1: FAIL");
}
c = a2 / b2;
if ( c == Double.NEGATIVE_INFINITY ) {
System.out.println("test2: PASS");
}else{
System.out.println("test2: FAIL");
}
System.out.println(c);
}
}
it fails on OPT, but passes on JET and Jrockit:
> $HARMONY -showversion -Xem:jet nan
Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
http://incubator.apache.org/harmony
test1: PASS
test2: PASS
-Infinity
> $HARMONY -showversion -Xem:opt nan
Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
http://incubator.apache.org/harmony
test1: FAIL
test2: FAIL
NaN
> java -showversion nan
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
test1: PASS
test2: PASS
-Infinity
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[jira] Commented: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
Posted by "Igor V Chebykin (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474969 ]
Igor V Chebykin commented on HARMONY-2773:
------------------------------------------
Please close the issue, I havn't rights.
> [drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
> ----------------------------------------------------------------------------
>
> Key: HARMONY-2773
> URL: https://issues.apache.org/jira/browse/HARMONY-2773
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: IA32/OPT/anyOS
> Reporter: Egor Pasko
>
> consider the following testcase:
> class nan
> {
> public static void main(String[] args)
> {
> double a = -1.0d;
> double b = 0.0d;
> double c;
> double a2 = 1.0d;
> double b2 = -0.0d;
>
> c = a / b;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test1: PASS");
> }else{
> System.out.println("test1: FAIL");
> }
>
> c = a2 / b2;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test2: PASS");
> }else{
> System.out.println("test2: FAIL");
> }
> System.out.println(c);
> }
> }
> it fails on OPT, but passes on JET and Jrockit:
> > $HARMONY -showversion -Xem:jet nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: PASS
> test2: PASS
> -Infinity
> > $HARMONY -showversion -Xem:opt nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: FAIL
> test2: FAIL
> NaN
> > java -showversion nan
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
> test1: PASS
> test2: PASS
> -Infinity
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[jira] Closed: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
Posted by "Alexey Varlamov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Varlamov closed HARMONY-2773.
------------------------------------
Resolution: Fixed
Added the regression test added at r217161, closing.
> [drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
> ----------------------------------------------------------------------------
>
> Key: HARMONY-2773
> URL: https://issues.apache.org/jira/browse/HARMONY-2773
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: IA32/OPT/anyOS
> Reporter: Egor Pasko
> Assigned To: Alexey Varlamov
> Attachments: HARMONY-2773.patch
>
>
> consider the following testcase:
> class nan
> {
> public static void main(String[] args)
> {
> double a = -1.0d;
> double b = 0.0d;
> double c;
> double a2 = 1.0d;
> double b2 = -0.0d;
>
> c = a / b;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test1: PASS");
> }else{
> System.out.println("test1: FAIL");
> }
>
> c = a2 / b2;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test2: PASS");
> }else{
> System.out.println("test2: FAIL");
> }
> System.out.println(c);
> }
> }
> it fails on OPT, but passes on JET and Jrockit:
> > $HARMONY -showversion -Xem:jet nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: PASS
> test2: PASS
> -Infinity
> > $HARMONY -showversion -Xem:opt nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: FAIL
> test2: FAIL
> NaN
> > java -showversion nan
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
> test1: PASS
> test2: PASS
> -Infinity
--
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[jira] Updated: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
Posted by "Igor V Chebykin (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Igor V Chebykin updated HARMONY-2773:
-------------------------------------
Attachment: HARMONY-2773.patch
Regression test adding patch
> [drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
> ----------------------------------------------------------------------------
>
> Key: HARMONY-2773
> URL: https://issues.apache.org/jira/browse/HARMONY-2773
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: IA32/OPT/anyOS
> Reporter: Egor Pasko
> Assigned To: Alexey Varlamov
> Attachments: HARMONY-2773.patch
>
>
> consider the following testcase:
> class nan
> {
> public static void main(String[] args)
> {
> double a = -1.0d;
> double b = 0.0d;
> double c;
> double a2 = 1.0d;
> double b2 = -0.0d;
>
> c = a / b;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test1: PASS");
> }else{
> System.out.println("test1: FAIL");
> }
>
> c = a2 / b2;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test2: PASS");
> }else{
> System.out.println("test2: FAIL");
> }
> System.out.println(c);
> }
> }
> it fails on OPT, but passes on JET and Jrockit:
> > $HARMONY -showversion -Xem:jet nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: PASS
> test2: PASS
> -Infinity
> > $HARMONY -showversion -Xem:opt nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: FAIL
> test2: FAIL
> NaN
> > java -showversion nan
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
> test1: PASS
> test2: PASS
> -Infinity
--
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[jira] Commented: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
Posted by "Alexey Varlamov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474996 ]
Alexey Varlamov commented on HARMONY-2773:
------------------------------------------
Igor, before we abandon this issue,
could you please create a regression test for this?
> [drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
> ----------------------------------------------------------------------------
>
> Key: HARMONY-2773
> URL: https://issues.apache.org/jira/browse/HARMONY-2773
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: IA32/OPT/anyOS
> Reporter: Egor Pasko
> Assigned To: Alexey Varlamov
>
> consider the following testcase:
> class nan
> {
> public static void main(String[] args)
> {
> double a = -1.0d;
> double b = 0.0d;
> double c;
> double a2 = 1.0d;
> double b2 = -0.0d;
>
> c = a / b;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test1: PASS");
> }else{
> System.out.println("test1: FAIL");
> }
>
> c = a2 / b2;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test2: PASS");
> }else{
> System.out.println("test2: FAIL");
> }
> System.out.println(c);
> }
> }
> it fails on OPT, but passes on JET and Jrockit:
> > $HARMONY -showversion -Xem:jet nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: PASS
> test2: PASS
> -Infinity
> > $HARMONY -showversion -Xem:opt nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: FAIL
> test2: FAIL
> NaN
> > java -showversion nan
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
> test1: PASS
> test2: PASS
> -Infinity
--
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[jira] Assigned: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
Posted by "Alexey Varlamov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Varlamov reassigned HARMONY-2773:
----------------------------------------
Assignee: Alexey Varlamov
> [drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
> ----------------------------------------------------------------------------
>
> Key: HARMONY-2773
> URL: https://issues.apache.org/jira/browse/HARMONY-2773
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: IA32/OPT/anyOS
> Reporter: Egor Pasko
> Assigned To: Alexey Varlamov
>
> consider the following testcase:
> class nan
> {
> public static void main(String[] args)
> {
> double a = -1.0d;
> double b = 0.0d;
> double c;
> double a2 = 1.0d;
> double b2 = -0.0d;
>
> c = a / b;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test1: PASS");
> }else{
> System.out.println("test1: FAIL");
> }
>
> c = a2 / b2;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test2: PASS");
> }else{
> System.out.println("test2: FAIL");
> }
> System.out.println(c);
> }
> }
> it fails on OPT, but passes on JET and Jrockit:
> > $HARMONY -showversion -Xem:jet nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: PASS
> test2: PASS
> -Infinity
> > $HARMONY -showversion -Xem:opt nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: FAIL
> test2: FAIL
> NaN
> > java -showversion nan
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
> test1: PASS
> test2: PASS
> -Infinity
--
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[jira] Commented: (HARMONY-2773) [drlvm][jit][opt] negative zero is
handled as positive zero (by Jitrino.OPT)
Posted by "Igor V Chebykin (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HARMONY-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474965 ]
Igor V Chebykin commented on HARMONY-2773:
------------------------------------------
The bug is not reproducible.
I am going to close the issue.
> [drlvm][jit][opt] negative zero is handled as positive zero (by Jitrino.OPT)
> ----------------------------------------------------------------------------
>
> Key: HARMONY-2773
> URL: https://issues.apache.org/jira/browse/HARMONY-2773
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: IA32/OPT/anyOS
> Reporter: Egor Pasko
>
> consider the following testcase:
> class nan
> {
> public static void main(String[] args)
> {
> double a = -1.0d;
> double b = 0.0d;
> double c;
> double a2 = 1.0d;
> double b2 = -0.0d;
>
> c = a / b;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test1: PASS");
> }else{
> System.out.println("test1: FAIL");
> }
>
> c = a2 / b2;
> if ( c == Double.NEGATIVE_INFINITY ) {
> System.out.println("test2: PASS");
> }else{
> System.out.println("test2: FAIL");
> }
> System.out.println(c);
> }
> }
> it fails on OPT, but passes on JET and Jrockit:
> > $HARMONY -showversion -Xem:jet nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: PASS
> test2: PASS
> -Infinity
> > $HARMONY -showversion -Xem:opt nan
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r487512, (Dec 15 2006), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> test1: FAIL
> test2: FAIL
> NaN
> > java -showversion nan
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System optimized over throughput (initial strategy singleparpar))
> test1: PASS
> test2: PASS
> -Infinity
--
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