[Bug target/83761] New: bfin: ICE: in require, at machmode.h:292

[sebastian.huber@embedded-brains.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83761

            Bug ID: 83761
           Summary: bfin: ICE: in require, at machmode.h:292
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sebastian.huber@embedded-brains.de
  Target Milestone: ---

make[4]: Entering directory
`/run/user/10351/b-gcc-bfin/bfin-rtems5/libgfortran'
/bin/sh ./libtool  --tag=CC   --mode=compile
/run/user/10351/b-gcc-bfin/./gcc/xgcc -B/run/user/10351/b-gcc-bfin/./gcc/
-nostdinc -B/run/user/10351/b-gcc-bfin/bfin-rtems5/newlib/ -isystem
/run/user/10351/b-gcc-bfin/bfin-rtems5/newlib/targ-include -isystem
/home/sh/src/gcc/newlib/libc/include -B/home/sh/install/bfin-rtems5/bin/
-B/home/sh/install/bfin-rtems5/lib/ -isystem
/home/sh/install/bfin-rtems5/include -isystem
/home/sh/install/bfin-rtems5/sys-include    -DHAVE_CONFIG_H -I.
-I/home/sh/src/gcc/libgfortran  -iquote/home/sh/src/gcc/libgfortran/io
-I/home/sh/src/gcc/libgfortran/../gcc
-I/home/sh/src/gcc/libgfortran/../gcc/config  -I../.././gcc
-I/home/sh/src/gcc/libgfortran/../libgcc -I../libgcc
-I/home/sh/src/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 -o sum_c8.lo `test -f
'/home/sh/src/gcc/libgfortran/generated/sum_c8.c' || echo
'/home/sh/src/gcc/libgfortran/'`/home/sh/src/gcc/libgfortran/generated/sum_c8.c
libtool: compile:  /run/user/10351/b-gcc-bfin/./gcc/xgcc
-B/run/user/10351/b-gcc-bfin/./gcc/ -nostdinc
-B/run/user/10351/b-gcc-bfin/bfin-rtems5/newlib/ -isystem
/run/user/10351/b-gcc-bfin/bfin-rtems5/newlib/targ-include -isystem
/home/sh/src/gcc/newlib/libc/include -B/home/sh/install/bfin-rtems5/bin/
-B/home/sh/install/bfin-rtems5/lib/ -isystem
/home/sh/install/bfin-rtems5/include -isystem
/home/sh/install/bfin-rtems5/sys-include -DHAVE_CONFIG_H -I.
-I/home/sh/src/gcc/libgfortran -iquote/home/sh/src/gcc/libgfortran/io
-I/home/sh/src/gcc/libgfortran/../gcc
-I/home/sh/src/gcc/libgfortran/../gcc/config -I../.././gcc
-I/home/sh/src/gcc/libgfortran/../libgcc -I../libgcc
-I/home/sh/src/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 /home/sh/src/gcc/libgfortran/generated/sum_c8.c -o sum_c8.o
during RTL pass: reload
/home/sh/src/gcc/libgfortran/generated/sum_c8.c: In function 'sum_c8':
/home/sh/src/gcc/libgfortran/generated/sum_c8.c:191:1: internal compiler error:
in require, at machmode.h:292
 }
 ^
0x101e4f43 opt_mode<machine_mode>::require() const
        /home/sh/src/gcc/gcc/machmode.h:292
0x101e4f43 replace_reg_with_saved_mem
        /home/sh/src/gcc/gcc/caller-save.c:1151
0x101e49a3 mark_referenced_regs
        /home/sh/src/gcc/gcc/caller-save.c:1053
0x101e49f3 mark_referenced_regs
        /home/sh/src/gcc/gcc/caller-save.c:1073
0x101e49f3 mark_referenced_regs
        /home/sh/src/gcc/gcc/caller-save.c:1073
0x101e6e2f save_call_clobbered_regs()
        /home/sh/src/gcc/gcc/caller-save.c:893
0x10771d27 reload(rtx_insn*, int)
        /home/sh/src/gcc/gcc/reload1.c:981
0x1059e8bb do_reload
        /home/sh/src/gcc/gcc/ira.c:5474
0x1059e8bb execute
        /home/sh/src/gcc/gcc/ira.c:5646