https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34040
--- Comment #16 from Joel Sherrill <joel at gcc dot gnu.org> ---
I assume this ICE during a build of bfin-rtems on the master is indicative of
the same underlying problem. I have reported this before on the sh2e but didn't
know of this PR.
libtool: compile: /home/joel/test-gcc/b-bfin-rtems5-gcc/./gcc/xgcc
-B/home/joel/test-gcc/b-bfin-rtems5-gcc/./gcc/ -nostdinc
-B/home/joel/test-gcc/b-bfin-rtems5-gcc/bfin-rtems5/newlib/ -isystem
/home/joel/test-gcc/b-bfin-rtems5-gcc/bfin-rtems5/newlib/targ-include -isystem
/home/joel/test-gcc/gcc/newlib/libc/include
-B/home/joel/test-gcc/install-master/bfin-rtems5/bin/
-B/home/joel/test-gcc/install-master/bfin-rtems5/lib/ -isystem
/home/joel/test-gcc/install-master/bfin-rtems5/include -isystem
/home/joel/test-gcc/install-master/bfin-rtems5/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc/libgfortran -iquote../../../gcc/libgfortran/io
-I../../../gcc/libgfortran/../gcc -I../../../gcc/libgfortran/../gcc/config
-I../.././gcc -I../../../gcc/libgfortran/../libgcc -I../libgcc
-I../../../gcc/libgfortran/../libbacktrace -I../libbacktrace -I../libbacktrace
-std=gnu11 -Wall -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -Wextra -Wwrite-strings
-Werror=implicit-function-declaration -Werror=vla -fcx-fortran-rules
-ffunction-sections -fdata-sections -g -O2 -MT sum_c8.lo -MD -MP -MF
.deps/sum_c8.Tpo -c ../../../gcc/libgfortran/generated/sum_c8.c -o sum_c8.o
during RTL pass: reload
../../../gcc/libgfortran/generated/sum_c8.c: In function 'sum_c8':
../../../gcc/libgfortran/generated/sum_c8.c:191:1: internal compiler error: in
require, at machmode.h:282
}
^
0x59f58c opt_mode<machine_mode>::require() const
../../gcc/gcc/machmode.h:282
0x59f58c replace_reg_with_saved_mem
../../gcc/gcc/caller-save.c:1151
0x5a00c6 mark_referenced_regs
../../gcc/gcc/caller-save.c:1073
0x5a00c6 mark_referenced_regs
../../gcc/gcc/caller-save.c:1073
0x5a1105 save_call_clobbered_regs()
../../gcc/gcc/caller-save.c:895
0x9ba530 reload(rtx_insn*, int)
../../gcc/gcc/reload1.c:980
0x8540ce do_reload
../../gcc/gcc/ira.c:5458
0x8540ce execute
../../gcc/gcc/ira.c:5630
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
make[3]: *** [sum_c8.lo] Error 1
