http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55388
Bug #: 55388
Summary: [4.8 regression] ICE in int_mode_for_mode at
stor-layout.c:423 breaks sparc64-linux bootstrap
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: mi...@it.uu.se
Attempting to bootstrap gcc-4.8-20121118 on sparc64-linux fails with:
make[5]: Entering directory
`/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/libsupc++'
/bin/sh ../libtool --tag CXX --tag disable-shared --mode=compile
/mnt/scratch/objdir48/./gcc/xgcc -shared-libgcc -B/mnt/scratch/objdir48/./gcc
-nostdinc++ -L/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/src
-L/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/src/.libs
-B/mnt/scratch/install48/sparc-unknown-linux/bin/
-B/mnt/scratch/install48/sparc-unknown-linux/lib/ -isystem
/mnt/scratch/install48/sparc-unknown-linux/include -isystem
/mnt/scratch/install48/sparc-unknown-linux/sys-include
-I/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/../libgcc
-I/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/include/sparc-unknown-linux
-I/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/include
-I/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/libsupc++ -prefer-pic
-D_GLIBCXX_SHARED -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections
-frandom-seed=class_type_info.lo -g -O2 -D_GNU_SOURCE -c -o class_type_info.lo
/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/libsupc++/class_type_info.cc
libtool: compile: /mnt/scratch/objdir48/./gcc/xgcc -shared-libgcc
-B/mnt/scratch/objdir48/./gcc -nostdinc++
-L/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/src
-L/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/src/.libs
-B/mnt/scratch/install48/sparc-unknown-linux/bin/
-B/mnt/scratch/install48/sparc-unknown-linux/lib/ -isystem
/mnt/scratch/install48/sparc-unknown-linux/include -isystem
/mnt/scratch/install48/sparc-unknown-linux/sys-include
-I/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/../libgcc
-I/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/include/sparc-unknown-linux
-I/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/include
-I/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/libsupc++ -D_GLIBCXX_SHARED -Wall
-Wextra -Wwrite-strings -Wcast-qual -Wabi -fdiagnostics-show-location=once
-ffunction-sections -fdata-sections -frandom-seed=class_type_info.lo -g -O2
-D_GNU_SOURCE -c
/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/libsupc++/class_type_info.cc -fPIC
-DPIC -D_GLIBCXX_SHARED -o class_type_info.o
/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/libsupc++/class_type_info.cc: In
member function 'virtual bool __cxxabiv1::__class_type_info::__do_upcast(const
__cxxabiv1::__class_type_info*, void**) const':
/mnt/scratch/gcc-4.8-20121118/libstdc++-v3/libsupc++/class_type_info.cc:46:6:
internal compiler error: in int_mode_for_mode, at stor-layout.c:423
bool __class_type_info::
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[5]: *** [class_type_info.lo] Error 1
make[5]: Leaving directory
`/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3/libsupc++'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory
`/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3'
make[3]: *** [all] Error 2
make[3]: Leaving directory
`/mnt/scratch/objdir48/sparc-unknown-linux/libstdc++-v3'
make[2]: *** [all-stage2-target-libstdc++-v3] Error 2
make[2]: Leaving directory `/mnt/scratch/objdir48'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/mnt/scratch/objdir48'
make: *** [bootstrap] Error 2
This problem was not present in 4.8-20121111.
I'll try to derive a minimized test case later today (-ENOTIME right now).
