bootstrap/3479: gcc 3.0 ICE on arm multilib target

[klaus.k.pedersen@nokia.com]

>Number:         3479
>Category:       bootstrap
>Synopsis:       gcc 3.0 ICE on arm multilib target
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Jun 29 08:16:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Klaus Pedersen
>Release:        gcc-3.0
>Organization:
>Environment:
HPUX 11. gcc 2.95.3
>Description:
Gcc 3.0, with patch from PR 3147, configured for arm and multilib,
aborts with a ICE, when building the thumb libs.

With binutils onfigured as:
   ../binutils-2.11.2/configure --prefix=/opt/net/cygnus/arm-elf-gcc --target=arm-elf --nfp

and gcc-3.0 configured as:
   ../gcc-3.0/configure --prefix=/opt/net/cygnus/arm-elf-gcc --target=arm-elf --nfp --enable-multilib --with-gas --with-as=/opt/net/cygnus/arm-elf-gcc/bin/arm-elf-as --with-gnu-ld --with-ld=/opt/net/cygnus/arm-elf-gcc/bin/arm-elf-ld --enable-target-optspace --enable-languages=c,c++

Gives ICE on:
   /opt/net/cygnus/trash/gcc-3.0/gccobj/gcc/xgcc -B/opt/net/cygnus/trash/gcc-3.0/gccobj/gcc/ -B/opt/net/cygnus/arm-elf-gcc/arm-elf/bin/ -B/opt/net/cygnus/arm-elf-gcc/arm-elf/lib/ -isystem /opt/net/cygnus/arm-elf-gcc/arm-elf/include -O2  -DCROSS_COMPILE -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -Dinhibit_libc -fno-inline -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../gcc-3.0/gcc -I../../gcc-3.0/gcc/. -I../../gcc-3.0/gcc/config -I../../gcc-3.0/gcc/../include  -mthumb -DL_muldi3 -c ../../gcc-3.0/gcc/libgcc2.c -o libgcc/thumb/_muldi3.o

This is the output from that command:

../../gcc-3.0/gcc/libgcc2.c: In function `__muldi3':
../../gcc-3.0/gcc/libgcc2.c:368: Could not split insn
(insn 169 126 72 (set (reg:SI 2 r2)
        (const_int 65536 [0x10000])) 176 {*thumb_movsi_insn} (nil)
    (nil))
../../gcc-3.0/gcc/libgcc2.c:368: Internal compiler error in final_scan_insn, at final.c:2950
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.
gmake[2]: *** [libgcc/thumb/_muldi3.o] Error 1
gmake[2]: Leaving directory `/opt/net/cygnus/trash/gcc-3.0/gccobj/gcc'
gmake[1]: *** [stmp-multilib] Error 2
gmake[1]: Leaving directory `/opt/net/cygnus/trash/gcc-3.0/gccobj/gcc'
gmake: *** [all-gcc] Error 2

>How-To-Repeat:
Configure gcc as described about, and execute this from 
your config directory

You can reproduce it by executing the following from the BUILD/gcc.
   /opt/net/cygnus/trash/gcc-3.0/gccobj/gcc/xgcc -B/opt/net/cygnus/trash/gcc-3.0/gccobj/gcc/ -B/opt/net/cygnus/arm-elf-gcc/arm-elf/bin/ -B/opt/net/cygnus/arm-elf-gcc/arm-elf/lib/ -isystem /opt/net/cygnus/arm-elf-gcc/arm-elf/include -O2  -DCROSS_COMPILE -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include  -Dinhibit_libc -fno-inline -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../gcc-3.0/gcc -I../../gcc-3.0/gcc/. -I../../gcc-3.0/gcc/config -I../../gcc-3.0/gcc/../include  -mthumb -DL_muldi3 -c ../../gcc-3.0/gcc/libgcc2.c -o libgcc/thumb/_muldi3.o
>Fix:
Currently no known workarounds.
>Release-Note:
>Audit-Trail:
>Unformatted: