------- Comment #3 from bkoz at gcc dot gnu dot org 2009-01-21 22:19 -------
Confirmed for s390x. This is causing the following s390x libstdc++ testsuite failures, and is thus a regression from 4.3. As far as I can tell these warnings are spurious. http://gcc.gnu.org/ml/gcc-testresults/2009-01/msg02102.html And from the libstdc++.log file: FAIL: 27_io/ios_base/types/fmtflags/bitmask_operators.cc (test for excess errors) Excess errors: /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:401: warning: 'a' is used uninitialized in this function /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:401: warning: 'b' is used uninitialized in this function /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:413: warning: 'b' is used uninitialized in this function FAIL: 27_io/ios_base/types/iostate/bitmask_operators.cc (test for excess errors) /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:401: warning: 'a' is used uninitialized in this function /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:401: warning: 'b' is used uninitialized in this function /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:413: warning: 'b' is used uninitialized in this function FAIL: 27_io/ios_base/types/openmode/bitmask_operators.cc (test for excess errors) /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:401: warning: 'a' is used uninitialized in this function /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:401: warning: 'b' is used uninitialized in this function /build-extralong/BUILD/gcc/libstdc++-v3/testsuite/util/testsuite_common_types.h:413: warning: 'b' is used uninitialized in this function -- bkoz at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bkoz at gcc dot gnu dot org Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2009-01-21 22:19:31 date| | Summary|Compiler warns about |[4.3 regression] Compiler |uninitialized variable that |warns about uninitialized |is an object with a |variable that is an object |constructor |with a constructor http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38851