While doing a jprt run for some libraries changes for the 6-open release, I run the the unrelated math libraries tests too including
test/closed/java/lang/Math/HyperbolicTests.java

This test failed on linux_x64-fastdebug-c2 with a bad sign of zero in some cases.

This is a build 19 JVM so presumably the same failure exists there too.
Posted Date : 2007-09-13 18:52:52.0

N/A

Fastdebug build does compile s_tanh.c with oprimization
and generates incorrect code.

JPRT build logs:

fastdebug:

/opt/jprt/products/P1/ccache2.4/bin/gcc  -g1 -O2    -fno-strict-aliasing -fPIC -W -Wall  -Wno-unused -Wno-parentheses -pipe -fno-omit-frame-pointer -D_LITTLE_ENDIAN  -DDEBUG -Damd64 -DARCH='"amd64"' -DLINUX -DRELEASE='"1.7.0-2007-09-14-143102.ksrini.j2se-fastdebug"' -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_REENTRANT -D_LP64=1 -I. -I../../../build/linux-amd64/tmp/java/fdlibm/CClassHeaders -I../../../src/solaris/javavm/export -I../../../src/share/javavm/export -I../../../src/share/javavm/include -I../../../src/solaris/javavm/include -I../../../src/share/native/java/lang/fdlibm/include    -c -o ../../../build/linux-amd64/tmp/java/fdlibm/obj64_gO/s_tanh.o  ../../../src/share/native/java/lang/fdlibm/src/s_tanh.c

product:

/opt/jprt/products/P1/ccache2.4/bin/gcc     -fno-strict-aliasing -fPIC -W -Wall  -Wno-unused -Wno-parentheses -pipe -fno-omit-frame-pointer -D_LITTLE_ENDIAN   -Damd64 -DARCH='"amd64"' -DLINUX -DRELEASE='"1.7.0-2007-09-14-143102.ksrini.j2se"' -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_REENTRANT -D_LP64=1 -I. -I../../../build/linux-amd64/tmp/java/fdlibm/CClassHeaders -I../../../src/solaris/javavm/export -I../../../src/share/javavm/export -I../../../src/share/javavm/include -I../../../src/solaris/javavm/include -I../../../src/share/native/java/lang/fdlibm/include    -c -o ../../../build/linux-amd64/tmp/java/fdlibm/obj64/s_tanh.o  ../../../src/share/native/java/lang/fdlibm/src/s_tanh.c
Posted Date : 2007-09-14 18:12:25.0

http://hg.openjdk.java.net/jdk7/build/jdk/rev/6d74c3f22c74
Posted Date : 2009-04-03 06:09:13.0