Building for a target of win64 on cygwin results in an ICE while building the crt for the toolchain. Using this sequence:
binutils all-gcc crt gcc The crt phase dies as follows: x86_64-pc-mingw32-gcc -DHAVE_CONFIG_H -I. -I/var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/mingw/obj/../mingw-w64-crt -I/var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/mingw/obj/../mingw-w64-crt/include64 -D_CRTBLD -I/var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/root/mingw/include -pipe -Wall -std=gnu99 -g -O2 -MT gdtoa/lib64_libmingwex_a-gethex.o -MD -MP -MF gdtoa/.deps/lib64_libmingwex_a-gethex.Tpo -c -o gdtoa/lib64_libmingwex_a-gethex.o `test -f 'gdtoa/gethex.c' || echo '/var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/mingw/obj/../mingw-w64-crt/'`gdtoa/gethex.c /var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/mingw/obj/../mingw-w64-crt/gdtoa/gethex.c: In function '__gethex_D2A': /var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/mingw/obj/../mingw-w64-crt/gdtoa/gethex.c:45: internal compiler error: tree check: accessed elt 4 of tree_vec with 3 elts in find_switch_asserts, at tree-vrp.c:4346 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[1]: *** [gdtoa/lib64_libmingwex_a-gethex.o] Error 1 make[1]: Leaving directory `/var/lib/buildbot/slave-vista64-cyg32/cygwin-x86/build/mingw/obj' make: *** [all] Error 2 Here's the file: http://mingw-w64.svn.sourceforge.net/viewvc/mingw-w64/trunk/mingw-w64-crt/gdtoa/gethex.c?view=markup At this stage, the newly built gcc is used to build the crt, so it's the stage 1 gcc that is dying. -- Summary: Rev 138207 causes ICE using bootstrap for crt for win64 Product: gcc Version: tree-ssa Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: nightstrike at gmail dot com GCC build triplet: i686-pc-cygwin GCC host triplet: i686-pc-cygwin GCC target triplet: x86_64-pc-mingw32 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37091
