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Date: Wed, 30 Nov 2005 18:53:00 -0000
Subject: [Bug libgcj/25187]  New: dereferencing type-punned pointer warnings while building libgcj
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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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/home/pinskia/src/newtest/trunk/libjava/java/lang/Class.h: In member function
'java::lang::Class* java::lang::Class::getComponentType()':
/home/pinskia/src/newtest/trunk/libjava/java/lang/Class.h:339: warning:
dereferencing type-punned pointer will break strict-aliasing rules
/home/pinskia/src/newtest/trunk/libjava/prims.cc: In function 'void
catch_segv(int)':
/home/pinskia/src/newtest/trunk/libjava/prims.cc:149: warning: dereferencing
type-punned pointer will break strict-aliasing rules
/home/pinskia/src/newtest/trunk/libjava/prims.cc: In function 'void
catch_fpe(int)':
/home/pinskia/src/newtest/trunk/libjava/prims.cc:161: warning: dereferencing
type-punned pointer will break strict-aliasing rules

/home/pinskia/src/newtest/trunk/libjava/jni.cc: In function 'jint
_Jv_JNI_DestroyJavaVM(JavaVM*)':
/home/pinskia/src/newtest/trunk/libjava/jni.cc:2440: warning: dereferencing
type-punned pointer will break strict-aliasing rules

/home/pinskia/src/newtest/trunk/libjava/interpret.cc: In static member function
'static void _Jv_InterpMethod::run(void*, ffi_raw*, _Jv_InterpMethod*)':
/home/pinskia/src/newtest/trunk/libjava/interpret.cc:808: warning:
dereferencing type-punned pointer will break strict-aliasing rules

/home/pinskia/src/newtest/trunk/libjava/gnu/gcj/io/natSimpleSHSStream.cc: In
static member function 'static JArray<__java_byte>*
gnu::gcj::io::SimpleSHSStream::shsFinal(JArray<__java_byte>*)':
/home/pinskia/src/newtest/trunk/libjava/gnu/gcj/io/natSimpleSHSStream.cc:32:
warning: dereferencing type-punned pointer will break strict-aliasing rules


I have not looked to see if these are false postives at all.


-- 
           Summary: dereferencing type-punned pointer warnings while
                    building libgcj
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25187