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Description
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Filed By : J2SE-SQA [j2se-tck- xxxxx@xxxxx ]
JDK : JDK1.5.0-b12, JDK1.5.0-b11
(This is a new Regression test which is absent in previous JDKs)
Testbase : RegTest-test
Platform[s] : Windows 2003 Enterprise (Itanium), customer Advanced Server 2.1 (Itanium)
(I am not able to reproduce the failure on 32-bit platforms)
switch/Mode : all
Falling tests : java/lang/Math/IeeeRecommendedTests.java
RegTest-test java/lang/Math/IeeeRecommendedTests.java test fails with JDK1.5.0-b12
on Windows 2003 Enterprise (64-bit).
Test source location:
=====================
/java/re/jdk/1.4.2/promoted/latest/ws/j2se/test/java/lang/Math/IeeeRecommendedTests.java
jtr file location:
==================
/net/jtgb4u4c.sfbay/export/sail15/results/tiger/b12/regtest/win32/redhat7.2_gnome_smp_-server_smp_JCC-ITANIUM- customer /workDir/test/java/lang/Math/IeeeRecommendedTests.jtr
How to reproduce:
=================
Run the following script (you may need to change it's variables):
--- script start ---
#!/bin/sh
RESULT_DIR=`pwd`
WORK_DIR=$RESULT_DIR/workDir/test
REPORT_DIR=$RESULT_DIR/reportDir
JT_HOME="h:/java/jct"
JAVA_HOME="h:/java/jdk1.5.0/win32"
TEST_BASE_PATH="h:/java/regtest/test"
TESTWITH=$JAVA_HOME
TESTJAVA=$JAVA_HOME
JTOPTS="-server"
TESTVMOPTS="-server"
export CLASSPATH="$JT_HOME/classes;$JT_HOME/lib/javatest.jar;$JT_HOME/lib/jtreg.jar;$JT_HOME/jemmy/jemmy.jar"
mkdir -p $WORK_DIR/scratch 2>&1
mkdir -p $WORK_DIR/jtData 2>&1
mkdir -p $REPORT_DIR 2>&1
cd $WORK_DIR/scratch
$JAVA_HOME/bin/java -cp $CLASSPATH $JTOPTS -DenvVars=TESTJAVAHOME=$JAVA_HOME,TESTVMOPTS=$TESTVMOPTS,DISPLAY=:0,windir=$windir,PATH=${SHELL%/*},CPAPPEND=$JT_HOME/jemmy/jemmy.jar,TZ=,LC_ALL=en_US,LC_CTYPE=en_US,LANG=en_US,LPDEST= -DDISPLAY=:0 -DlocalHost="JCC-ITANIUM- customer " -Dprogram=jtreg com.sun.javatest.regtest.Main -a -v default -batch -params -w "$WORK_DIR" -r "$REPORT_DIR" -t "$TEST_BASE_PATH" "$TEST_BASE_PATH/java/lang/Math/IeeeRecommendedTests.java"
--- script end ---
Test output (jtr part):
=======================
----------System.out:(0/0)----------
----------System.err:(502/48957)----------
Failure for FpUtils.ilogb(float): For input 4.9E-324 expected -1074 got -1023.
Failure for FpUtils.ilogb(float): For input -4.9E-324 expected -1074 got -1023.
Failure for FpUtils.ilogb(float): For input 1.0E-323 expected -1073 got -1023.
Failure for FpUtils.ilogb(float): For input -1.0E-323 expected -1073 got -1023.
Failure for FpUtils.ilogb(float): For input 2.0E-323 expected -1072 got -1023.
Failure for FpUtils.ilogb(float): For input -2.0E-323 expected -1072 got -1023.
Failure for FpUtils.ilogb(float): For input 1.5E-323 expected -1073 got -1023.
Failure for FpUtils.ilogb(float): For input -1.5E-323 expected -1073 got -1023.
Failure for FpUtils.ilogb(float): For input 4.0E-323 expected -1071 got -1023.
Failure for FpUtils.ilogb(float): For input -4.0E-323 expected -1071 got -1023.
Failure for FpUtils.ilogb(float): For input 3.5E-323 expected -1072 got -1023.
Failure for FpUtils.ilogb(float): For input -3.5E-323 expected -1072 got -1023.
Failure for FpUtils.ilogb(float): For input 7.9E-323 expected -1070 got -1023.
Failure for FpUtils.ilogb(float): For input -7.9E-323 expected -1070 got -1023.
Failure for FpUtils.ilogb(float): For input 7.4E-323 expected -1071 got -1023.
Failure for FpUtils.ilogb(float): For input -7.4E-323 expected -1071 got -1023.
Failure for FpUtils.ilogb(float): For input 1.58E-322 expected -1069 got -1023.
Failure for FpUtils.ilogb(float): For input -1.58E-322 expected -1069 got -1023.
Failure for FpUtils.ilogb(float): For input 1.53E-322 expected -1070 got -1023.
Failure for FpUtils.ilogb(float): For input -1.53E-322 expected -1070 got -1023.
Failure for FpUtils.ilogb(float): For input 3.16E-322 expected -1068 got -1023.
...
Failure for FpUtils.scalb(double,int): For input (1.5E-323, 2094) expected Infinity got 3.3706746278668423E307.
Failure for FpUtils.scalb(double,int): For input (-1.5E-323, 2094) expected -Infinity got -3.3706746278668423E307.
Failure for FpUtils.scalb(double,int): For input (1.5E-323, 2095) expected Infinity got 6.741349255733685E307.
Failure for FpUtils.scalb(double,int): For input (-1.5E-323, 2095) expected -Infinity got -6.741349255733685E307.
Failure for FpUtils.scalb(double,int): For input (1.5E-323, 2096) expected Infinity got 1.348269851146737E308.
Failure for FpUtils.scalb(double,int): For input (-1.5E-323, 2096) expected -Infinity got -1.348269851146737E308.
Testing the recommended functions incurred 388 failures.
java.lang.RuntimeException
at IeeeRecommendedTests.main(IeeeRecommendedTests.java:1804)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:82)
at java.lang.Thread.run(Thread.java:549)
JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test
STATUS:Failed.`main' threw exception: java.lang.RuntimeException
result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException
Specific machine info:
======================
Hostname: JCC-ITANIUM- customer
OS: Windows 2003 Enterprise
======================================================================
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Evaluation
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I've verified the regression tests fail on a recent build on a local itanium machine. All the failures are for double subnormal inputs.
The problem is apparently a code generation issue with the Itanium server compiler. I wrote a simple stand-alone test program with some of the failing values. When the short program was run without a vm option or with -Xint, the proper results are calculated. However, the program fails when run with -Xcomp.
import sun.misc.FpUtils;
import sun.misc.DoubleConsts;
public class test {
public static void main(String argv[]) {
double [] values = {
Double.MIN_VALUE,
Double.MIN_VALUE*2,
Double.MIN_VALUE*3,
FpUtils.nextDown(DoubleConsts.MIN_NORMAL),
DoubleConsts.MIN_NORMAL,
};
for(int i =0; i < values.length; i++) {
System.out.println("0x" + Long.toHexString(Double.doubleToRawLongBits(values[i])) +
"\t0x" + Long.toHexString(Double.doubleToLongBits(values[i])) +
// "\t" + Double.toHexString(values[i]) +
"\t" + FpUtils.ilogb(values[i])
);
}
}
}
(The ilogb failures are mislabled as float when they are actualy double input.)
Transferring bug to C2.
xxxxx@xxxxx 2003-07-31
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