This bug is triggered by assigning a private variable of a protected object as the default expression of its private protected procedure's parameter.
----------------------------------------------------------------------------- $ gnatgcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /var/tmp/portage/gnat-4.01/work/gcc-4.0.1/configure --prefix=/usr --program-prefix=gnat --enable-languages=c,ada --enable-libada --with-gcc --with-gnu-ld --with-gnu-as --enable-threads=posix --enable-shared --with-system-zlib --disable-nls --libdir=/usr/lib/ada --libexecdir=/usr/libexec/ada --mandir=/usr/share/man --infodir=/usr/share/info Thread model: posix gcc version 4.0.1 ----------------------------------------------------------------------------- $ gnatmake bug gnatgcc -c bug.adb +===========================GNAT BUG DETECTED==============================+ | 4.0.1 (i686-pc-linux-gnu) Assert_Failure atree.adb:812 | | Error detected at bug.adb:15:50 | | Please submit a bug report; see http://gcc.gnu.org/bugs.html. | | Include the entire contents of this bug box in the report. | | Include the exact gcc or gnatmake command that you entered. | | Also include sources listed below in gnatchop format | | (concatenated together with no headers between files). | +==========================================================================+ Please include these source files with error report Note that list may not be accurate in some cases, so please double check that the problem can still be reproduced with the set of files listed. bug.adb compilation abandoned gnatmake: "bug.adb" compilation error ----------------------------------------------------------------------------- -------- begin file: bug.adb -------- procedure Bug is protected Object is entry Trigger; private Private_Variable : Integer; end Object; protected body Object is procedure Bug_Happens_Here (I : Integer := Private_Variable) is begin null; end Bug_Happens_Here; entry Trigger when True is begin Bug_Happens_Here; end Trigger; end Object; begin null; end Bug; -------- end file: bug.adb -------- -- Summary: Bug box: Assert_Failure atree.adb:812 Product: gcc Version: 4.0.1 Status: UNCONFIRMED Severity: normal Priority: P2 Component: ada AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kat-zygfryd at o2 dot pl CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24079
