[Bug lto/65243] [5 Regression] lto1 ICE (segfault) on powerpc64le-linux-gnu

["doko at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65243

Matthias Klose <doko at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |UNCONFIRMED
     Ever confirmed|1                           |0

--- Comment #2 from Matthias Klose <doko at gcc dot gnu.org> ---
export COLLECT_GCC=/usr/bin/powerpc64le-linux-gnu-g++
export COLLECT_GCC_OPTIONS="'-c' '-fexceptions' '-fmath-errno' '-fsigned-zeros'
'-ftrapping-math' '-fno-trapv' '-fno-openmp' '-fno-openacc' '-msecure-plt'
'-mtune=power8' '-mcpu=power7' '-O3' '-O2' '-O3' '-v' '-save-temps' '-g' '-O3'
'-fstack-protector-strong' '-Werror=format-security' '-D' '_FORTIFY_SOURCE=2'
'-fPIE' '-pie' '-shared-libgcc' '-mtune=power8' '-mcpu=power7' '-dumpdir' './'
'-dumpbase' 'apt-cacher-ng.ltrans17' '-fltrans' '-o'
'apt-cacher-ng.ltrans17.ltrans.o' '-shared-libgcc'"
gdb --args  /usr/lib/gcc/powerpc64le-linux-gnu/5/lto1 -quiet -dumpdir ./
-dumpbase apt-cacher-ng.ltrans17 -msecure-plt -mtune=power8 -mcpu=power7
-mtune=power8 -mcpu=power7 -auxbase-strip apt-cacher-ng.ltrans17.ltrans.o -g
-O3 -O2 -O3 -O3 -Werror=format-security -version -fexceptions -fmath-errno
-fsigned-zeros -ftrapping-math -fno-trapv -fno-openmp -fno-openacc
-fstack-protector-strong -fPIE -fltrans apt-cacher-ng.ltrans17.o -o
apt-cacher-ng.ltrans17.s

Program received signal SIGSEGV, Segmentation fault.
0x0000000010c53690 in htab_hash_string ()
(gdb) bt
#0  0x0000000010c53690 in htab_hash_string ()
#1  0x000000001026a1d8 in lookup_external_ref(hash_table<external_ref_hasher,
xcallocator, false>*, die_struct*) ()
#2  0x000000001026a2d8 in optimize_external_refs_1(die_struct*,
hash_table<external_ref_hasher, xcallocator, false>*) ()
#3  0x000000001026a894 in optimize_external_refs(die_struct*) ()
#4  0x000000001026abf4 in output_comp_unit(die_struct*, int) ()
#5  0x000000001028d5cc in dwarf2out_finish(char const*) ()
#6  0x00000000105ca938 in compile_file() ()
#7  0x0000000010141374 in toplev::main(int, char**) ()
#8  0x0000000010141d78 in main ()