I don't know anything about Ada, just happen to have gnat installed on my system, and got this while compiling ncurses (ncurses-5.5.tar.gz, ncurses configured with "../configure --with-shared --with-rpath --prefix=/opt/pbl"):
$ gcc -v -save-temps -c -I../../../Ada95/src/ -O3 -gnatpn -I. -I../../../Ada95/src -I- ../../../Ada95/src/terminal_interface-curses.adb Using built-in specs. Target: sparc-sun-solaris2.6 Configured with: ../configure --prefix=/opt/pbl --with-local-prefix=/opt/pbl --with-cpu=ultrasparc --with-tune=ultrasparc --enable-languages=c,ada,c++,f95,java,objc --disable-nls --with-gmp=/opt/pbl --with-mpfr=/opt/pbl --with-gnu-ld --with-gnu-as --with-ld=/opt/pbl/bin/ld --with-as=/opt/pbl/bin/as --enable-java-awt=xlib --with-x Thread model: posix95 gcc version 4.0.2 /opt/pbl/libexec/gcc/sparc-sun-solaris2.6/4.0.2/gnat1 -I../../../Ada95/src/ -I. -I../../../Ada95/src -I- -quiet -dumpbase terminal_interface-curses.adb -O3 -gnatpn -mcpu=ultrasparc -mtune=ultrasparc ../../../Ada95/src/terminal_interface-curses.adb -o terminal_interface-curses.s +===========================GNAT BUG DETECTED==============================+ | 4.0.2 (sparc-sun-solaris2.6) in simplify_subreg, at simplify-rtx.c:3746 | | Error detected at terminal_interface-curses.adb:2566:1 | | 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. ../../../Ada95/src/terminal_interface-curses.adb ./terminal_interface-curses.ads ../../../Ada95/src/terminal_interface.ads ./terminal_interface-curses-aux.ads raised TYPES.UNRECOVERABLE_ERROR : comperr.adb:387 I'll include listed files shortly... -- Summary: Gnat bug in simplify_subreg, at simplify-rtx.c:3746 Product: gcc Version: 4.0.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: alex at milivojevic dot org GCC build triplet: sparc-sun-solaris2.6 GCC host triplet: sparc-sun-solaris2.6 GCC target triplet: sparc-sun-solaris2.6 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25932
