http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53963
Bug #: 53963 Summary: [4.8 Regression] LTO bootstrap failed with bootstrap-profiled Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassig...@gcc.gnu.org ReportedBy: hjl.to...@gmail.com On Linux/x86-64, revision 189467 failed to profiledbootstrap: checking for suffix of object files... configure: error: in `/export/gnu/import/git/gcc-test-profile/bld/x86_64-unknown-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. make[5]: *** [configure-stagefeedback-target-libgcc] Error 1 when configured with --prefix=/usr/local --enable-clocale=gnu --with-system-zlib --enable-sh ared --with-demangler-in-ld --with-build-config=bootstrap-lto --with-fpmath=sse "--prefix=/usr/local" is the key to trigger this regression. The stage 3 compiler is miscompiled. Revision 189349 is OK.