http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47595
--- Comment #1 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-02-03 01:33:24 UTC --- This seems to be specific to the bootstrap with -fgraphite-identity at -O2. The warnings appear as... /sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/testsuite/g++/../../g++ -B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/testsuite/g++/../../ /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c -nostdinc++ -I/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.7.0/i386/libstdc++-v3/include/x86_64-apple-darwin10.7.0 -I/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.7.0/i386/libstdc++-v3/include -I/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/libstdc++-v3/libsupc++ -I/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/libstdc++-v3/include/backward -I/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/libstdc++-v3/testsuite/util -fmessage-length=0 -O2 -Wuninitialized -fno-ivopts -S -m32 -fgraphite-identity -o uninit-17.s /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c: In function ‘void foobar(int, int*)’: /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c:21:6: warning: ‘b’ is used uninitialized in this function [-Wuninitialized] when -fgraphite-identity is passed but also as... /sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/testsuite/g++/../../g++ -B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/testsuite/g++/../../ /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c -nostdinc++ -I/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.7.0/i386/libstdc++-v3/include/x86_64-apple-darwin10.7.0 -I/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/x86_64-apple-darwin10.7.0/i386/libstdc++-v3/include -I/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/libstdc++-v3/libsupc++ -I/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/libstdc++-v3/include/backward -I/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/libstdc++-v3/testsuite/util -fmessage-length=0 -O2 -Wuninitialized -fno-ivopts -S -m32 -fno-graphite-identity -o uninit-17.s /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c: In function ‘void foobar(int, int*)’: /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c:16:11: warning: ‘b’ may be used uninitialized in this function [-Wuninitialized] /sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20110202/gcc/testsuite/c-c++-common/uninit-17.c:12:9: note: ‘b’ was declared here when -fno-graphite-identity is passed.
