[Bug c/62203] New: arm-rtems ICE compiling libgcc/fixed-bit.c

[Bug c/62203] New: arm-rtems ICE compiling libgcc/fixed-bit.c

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

            Bug ID: 62203
           Summary: arm-rtems ICE compiling libgcc/fixed-bit.c
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: joel at gcc dot gnu.org

I can provide more details but since this is just with compiling libgcc, I
doubt that much else is needed.

I last built this target on:

arm-rtems4.11-gcc (GCC) 5.0.0 20140818 (experimental)


/users/joel/test-gcc/b-arm-rtems4.11-gcc/./gcc/xgcc
-B/users/joel/test-gcc/b-arm-rtems4.11-gcc/./gcc/ -nostdinc
-B/users/joel/test-gcc/b-arm-rtems4.11-gcc/arm-rtems4.11/newlib/ -isystem
/users/joel/test-gcc/b-arm-rtems4.11-gcc/arm-rtems4.11/newlib/targ-include
-isystem /users/joel/test-gcc/gcc/newlib/libc/include
-B/users/joel/test-gcc/install-head/arm-rtems4.11/bin/
-B/users/joel/test-gcc/install-head/arm-rtems4.11/lib/ -isystem
/users/joel/test-gcc/install-head/arm-rtems4.11/include -isystem
/users/joel/test-gcc/install-head/arm-rtems4.11/sys-include    -g -O2 -mthumb
-march=armv7-a -O2 -I../../../../../gcc/libgcc/../newlib/libc/sys/rtems/include
-g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wno-narrowing
-Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include   -fno-inline -g -DIN_LIBGCC2
-fbuilding-libgcc -fno-stack-protector -Dinhibit_libc  -fno-inline -I. -I.
-I../../../.././gcc -I../../../../../gcc/libgcc -I../../../../../gcc/libgcc/.
-I../../../../../gcc/libgcc/../gcc -I../../../../../gcc/libgcc/../include 
-DHAVE_CC_TLS  -o _saturate2UDQ.o -MT _saturate2UDQ.o -MD -MP -MF
_saturate2UDQ.dep -DL_saturate2 -DUDQ_MODE -c
../../../../../gcc/libgcc/fixed-bit.c -fvisibility=hidden -DHIDE_EXPORTS
../../../../../gcc/libgcc/fixed-bit.c: In function '__gnu_saturate2udq':
../../../../../gcc/libgcc/fixed-bit.c:246:1: internal compiler error:
Segmentation fault
 }
 ^
0x8dab0f crash_signal
    ../../gcc/gcc/toplev.c:337
0x577583 bool is_a_helper<rtx_insn*>::test<rtx_def>(rtx_def*)
    ../../gcc/gcc/rtl.h:687
0x577583 bool is_a<rtx_insn*, rtx_def>(rtx_def*)
    ../../gcc/gcc/is-a.h:182
0x577583 rtx_insn* as_a<rtx_insn*, rtx_def>(rtx_def*)
    ../../gcc/gcc/is-a.h:192
0x577583 duplicate_insn_chain(rtx_def*, rtx_def*)
    ../../gcc/gcc/cfgrtl.c:4169
0x8b2299 dup_block_and_redirect(basic_block_def*, basic_block_def*, rtx_def*,
bitmap_head*)
    ../../gcc/gcc/shrink-wrap.c:389
0x8b34ec try_shrink_wrapping(edge_def**, edge_def*, bitmap_head*, rtx_def*)
    ../../gcc/gcc/shrink-wrap.c:748
0x6ce5f4 thread_prologue_and_epilogue_insns
    ../../gcc/gcc/function.c:5691
0x6ce5f4 rest_of_handle_thread_prologue_and_epilogue
    ../../gcc/gcc/function.c:6242
0x6ce5f4 execute
    ../../gcc/gcc/function.c:6280
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[4]: *** [_saturate2UDQ.o] Error 1
make[4]: Leaving directory
`/users/joel/test-gcc/b-arm-rtems4.11-gcc/arm-rtems4.11/thumb/armv7-a/libgcc'

[Bug c/62203] arm-rtems ICE compiling libgcc/fixed-bit.c

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dmalcolm at redhat dot com,
                   |                            |ktkachov at gcc dot gnu.org

--- Comment #1 from ktkachov at gcc dot gnu.org ---
Sounds like the ICE fixed by David Malcolm:
https://gcc.gnu.org/ml/gcc-patches/2014-08/msg01971.html

[Bug c/62203] arm-rtems ICE compiling libgcc/fixed-bit.c

[dmalcolm at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

--- Comment #2 from Dave Malcolm <dmalcolm at redhat dot com> ---
Sorry about this; I believe I introduced this in r214197, and fixed it in
r214207.

[Bug c/62203] arm-rtems ICE compiling libgcc/fixed-bit.c

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

--- Comment #3 from Joel Sherrill <joel at gcc dot gnu.org> ---
Could your change have impacted multiple targets? I see ICE on i386, nios2,
powerpc, and sh.

I would be happy to learn I just started a sweep at an unfortunate point. I
have updated my gcc tree and will start another one. If ok, I will then close
this.

[Bug c/62203] arm-rtems ICE compiling libgcc/fixed-bit.c

[dmalcolm at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

--- Comment #4 from Dave Malcolm <dmalcolm at redhat dot com> ---
(In reply to Joel Sherrill from comment #3)
> Could your change have impacted multiple targets? I see ICE on i386, nios2,
> powerpc, and sh.

Yes.  Sorry again.

> I would be happy to learn I just started a sweep at an unfortunate point. I
> have updated my gcc tree and will start another one. If ok, I will then
> close this.

[Bug c/62203] arm-rtems ICE compiling libgcc/fixed-bit.c

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

--- Comment #5 from Joel Sherrill <joel at gcc dot gnu.org> ---
Appears to be fixed now.

[Bug c/62203] arm-rtems ICE compiling libgcc/fixed-bit.c

[joel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62203

Joel Sherrill <joel at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Joel Sherrill <joel at gcc dot gnu.org> ---
Fixed now.